forked from OSchip/llvm-project
2038 lines
60 KiB
LLVM
2038 lines
60 KiB
LLVM
; RUN: opt -objc-arc -S < %s | FileCheck %s
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target datalayout = "e-p:64:64:64"
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declare i8* @objc_retain(i8*)
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declare void @objc_release(i8*)
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declare i8* @objc_autorelease(i8*)
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declare void @objc_autoreleasePoolPop(i8*)
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declare void @objc_autoreleasePoolPush()
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declare i8* @objc_retainBlock(i8*)
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declare i8* @objc_retainedObject(i8*)
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declare i8* @objc_unretainedObject(i8*)
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declare i8* @objc_unretainedPointer(i8*)
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declare void @use_pointer(i8*)
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declare void @callee()
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declare void @callee_fnptr(void ()*)
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declare void @invokee()
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declare i8* @returner()
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declare void @llvm.dbg.value(metadata, i64, metadata)
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declare i8* @objc_msgSend(i8*, i8*, ...)
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; Simple retain+release pair deletion, with some intervening control
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; flow and harmless instructions.
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; CHECK: define void @test0(
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; CHECK-NOT: @objc_
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; CHECK: }
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define void @test0(i32* %x, i1 %p) nounwind {
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entry:
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%a = bitcast i32* %x to i8*
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%0 = call i8* @objc_retain(i8* %a) nounwind
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br i1 %p, label %t, label %f
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t:
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store i8 3, i8* %a
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%b = bitcast i32* %x to float*
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store float 2.0, float* %b
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br label %return
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f:
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store i32 7, i32* %x
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br label %return
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return:
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%c = bitcast i32* %x to i8*
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call void @objc_release(i8* %c) nounwind
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ret void
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}
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; Like test0 but the release isn't always executed when the retain is,
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; so the optimization is not safe.
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; TODO: Make the objc_release's argument be %0.
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; CHECK: define void @test1(
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; CHECK: @objc_retain(i8* %a)
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; CHECK: @objc_release
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; CHECK: }
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define void @test1(i32* %x, i1 %p, i1 %q) nounwind {
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entry:
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%a = bitcast i32* %x to i8*
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%0 = call i8* @objc_retain(i8* %a) nounwind
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br i1 %p, label %t, label %f
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t:
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store i8 3, i8* %a
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%b = bitcast i32* %x to float*
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store float 2.0, float* %b
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br label %return
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f:
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store i32 7, i32* %x
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call void @callee()
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br i1 %q, label %return, label %alt_return
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return:
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%c = bitcast i32* %x to i8*
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call void @objc_release(i8* %c) nounwind
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ret void
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alt_return:
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ret void
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}
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; Don't do partial elimination into two different CFG diamonds.
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; CHECK: define void @test1b(
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; CHECK: entry:
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; CHECK: tail call i8* @objc_retain(i8* %x) nounwind
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; CHECK-NOT: @objc_
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; CHECK: if.end5:
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; CHECK: tail call void @objc_release(i8* %x) nounwind, !clang.imprecise_release !0
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; CHECK-NOT: @objc_
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; CHECK: }
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define void @test1b(i8* %x, i1 %p, i1 %q) {
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entry:
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tail call i8* @objc_retain(i8* %x) nounwind
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br i1 %p, label %if.then, label %if.end
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if.then: ; preds = %entry
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tail call void @callee()
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br label %if.end
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if.end: ; preds = %if.then, %entry
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br i1 %q, label %if.then3, label %if.end5
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if.then3: ; preds = %if.end
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tail call void @use_pointer(i8* %x)
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br label %if.end5
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if.end5: ; preds = %if.then3, %if.end
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tail call void @objc_release(i8* %x) nounwind, !clang.imprecise_release !0
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ret void
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}
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; Like test0 but the pointer is passed to an intervening call,
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; so the optimization is not safe.
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; CHECK: define void @test2(
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; CHECK: @objc_retain(i8* %a)
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; CHECK: @objc_release
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; CHECK: }
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define void @test2(i32* %x, i1 %p) nounwind {
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entry:
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%a = bitcast i32* %x to i8*
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%0 = call i8* @objc_retain(i8* %a) nounwind
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br i1 %p, label %t, label %f
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t:
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store i8 3, i8* %a
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%b = bitcast i32* %x to float*
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store float 2.0, float* %b
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br label %return
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f:
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store i32 7, i32* %x
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call void @use_pointer(i8* %0)
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%d = bitcast i32* %x to float*
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store float 3.0, float* %d
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br label %return
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return:
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%c = bitcast i32* %x to i8*
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call void @objc_release(i8* %c) nounwind
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ret void
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}
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; Like test0 but the release is in a loop,
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; so the optimization is not safe.
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; TODO: For now, assume this can't happen.
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; CHECK: define void @test3(
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; TODO: @objc_retain(i8* %a)
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; TODO: @objc_release
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; CHECK: }
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define void @test3(i32* %x, i1* %q) nounwind {
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entry:
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%a = bitcast i32* %x to i8*
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%0 = call i8* @objc_retain(i8* %a) nounwind
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br label %loop
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loop:
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%c = bitcast i32* %x to i8*
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call void @objc_release(i8* %c) nounwind
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%j = load volatile i1* %q
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br i1 %j, label %loop, label %return
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return:
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ret void
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}
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; TODO: For now, assume this can't happen.
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; Like test0 but the retain is in a loop,
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; so the optimization is not safe.
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; CHECK: define void @test4(
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; TODO: @objc_retain(i8* %a)
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; TODO: @objc_release
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; CHECK: }
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define void @test4(i32* %x, i1* %q) nounwind {
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entry:
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br label %loop
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loop:
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%a = bitcast i32* %x to i8*
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%0 = call i8* @objc_retain(i8* %a) nounwind
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%j = load volatile i1* %q
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br i1 %j, label %loop, label %return
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return:
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%c = bitcast i32* %x to i8*
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call void @objc_release(i8* %c) nounwind
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ret void
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}
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; Like test0 but the pointer is conditionally passed to an intervening call,
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; so the optimization is not safe.
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; CHECK: define void @test5(
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; CHECK: @objc_retain(i8*
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; CHECK: @objc_release
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; CHECK: }
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define void @test5(i32* %x, i1 %q, i8* %y) nounwind {
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entry:
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%a = bitcast i32* %x to i8*
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%0 = call i8* @objc_retain(i8* %a) nounwind
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%s = select i1 %q, i8* %y, i8* %0
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call void @use_pointer(i8* %s)
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store i32 7, i32* %x
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%c = bitcast i32* %x to i8*
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call void @objc_release(i8* %c) nounwind
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ret void
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}
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; retain+release pair deletion, where the release happens on two different
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; flow paths.
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; CHECK: define void @test6(
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; CHECK-NOT: @objc_
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; CHECK: }
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define void @test6(i32* %x, i1 %p) nounwind {
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entry:
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%a = bitcast i32* %x to i8*
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%0 = call i8* @objc_retain(i8* %a) nounwind
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br i1 %p, label %t, label %f
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t:
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store i8 3, i8* %a
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%b = bitcast i32* %x to float*
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store float 2.0, float* %b
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%ct = bitcast i32* %x to i8*
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call void @objc_release(i8* %ct) nounwind
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br label %return
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f:
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store i32 7, i32* %x
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call void @callee()
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%cf = bitcast i32* %x to i8*
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call void @objc_release(i8* %cf) nounwind
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br label %return
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return:
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ret void
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}
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; retain+release pair deletion, where the retain happens on two different
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; flow paths.
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; CHECK: define void @test7(
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; CHECK-NOT: @objc_
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; CHECK: }
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define void @test7(i32* %x, i1 %p) nounwind {
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entry:
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%a = bitcast i32* %x to i8*
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br i1 %p, label %t, label %f
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t:
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%0 = call i8* @objc_retain(i8* %a) nounwind
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store i8 3, i8* %a
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%b = bitcast i32* %x to float*
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store float 2.0, float* %b
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br label %return
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f:
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%1 = call i8* @objc_retain(i8* %a) nounwind
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store i32 7, i32* %x
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call void @callee()
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br label %return
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return:
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%c = bitcast i32* %x to i8*
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call void @objc_release(i8* %c) nounwind
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ret void
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}
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; Like test7, but there's a retain/retainBlock mismatch. Don't delete!
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; CHECK: define void @test7b
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; CHECK: t:
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; CHECK: call i8* @objc_retainBlock
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; CHECK: f:
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; CHECK: call i8* @objc_retain
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; CHECK: return:
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; CHECK: call void @objc_release
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; CHECK: }
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define void @test7b(i32* %x, i1 %p) nounwind {
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entry:
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%a = bitcast i32* %x to i8*
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br i1 %p, label %t, label %f
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t:
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%0 = call i8* @objc_retainBlock(i8* %a) nounwind
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store i8 3, i8* %a
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%b = bitcast i32* %x to float*
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store float 2.0, float* %b
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br label %return
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f:
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%1 = call i8* @objc_retain(i8* %a) nounwind
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store i32 7, i32* %x
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call void @callee()
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br label %return
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return:
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%c = bitcast i32* %x to i8*
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call void @objc_release(i8* %c) nounwind
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ret void
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}
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; retain+release pair deletion, where the retain and release both happen on
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; different flow paths. Wild!
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; CHECK: define void @test8(
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; CHECK-NOT: @objc_
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; CHECK: }
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define void @test8(i32* %x, i1 %p, i1 %q) nounwind {
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entry:
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%a = bitcast i32* %x to i8*
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br i1 %p, label %t, label %f
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t:
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%0 = call i8* @objc_retain(i8* %a) nounwind
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store i8 3, i8* %a
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%b = bitcast i32* %x to float*
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store float 2.0, float* %b
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br label %mid
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f:
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%1 = call i8* @objc_retain(i8* %a) nounwind
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store i32 7, i32* %x
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br label %mid
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mid:
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br i1 %q, label %u, label %g
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u:
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call void @callee()
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%cu = bitcast i32* %x to i8*
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call void @objc_release(i8* %cu) nounwind
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br label %return
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g:
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%cg = bitcast i32* %x to i8*
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call void @objc_release(i8* %cg) nounwind
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br label %return
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return:
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ret void
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}
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; Trivial retain+release pair deletion.
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; CHECK: define void @test9(
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; CHECK-NOT: @objc_
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; CHECK: }
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define void @test9(i8* %x) nounwind {
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entry:
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%0 = call i8* @objc_retain(i8* %x) nounwind
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call void @objc_release(i8* %0) nounwind
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ret void
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}
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; Retain+release pair, but on an unknown pointer relationship. Don't delete!
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; CHECK: define void @test9b
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; CHECK: @objc_retain(i8* %x)
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; CHECK: @objc_release(i8* %s)
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; CHECK: }
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define void @test9b(i8* %x, i1 %j, i8* %p) nounwind {
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entry:
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%0 = call i8* @objc_retain(i8* %x) nounwind
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%s = select i1 %j, i8* %x, i8* %p
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call void @objc_release(i8* %s) nounwind
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ret void
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}
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; Trivial retain+release pair with intervening calls - don't delete!
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; CHECK: define void @test10(
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; CHECK: @objc_retain(i8* %x)
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; CHECK: @callee
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; CHECK: @use_pointer
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; CHECK: @objc_release
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; CHECK: }
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define void @test10(i8* %x) nounwind {
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entry:
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%0 = call i8* @objc_retain(i8* %x) nounwind
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call void @callee()
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call void @use_pointer(i8* %x)
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call void @objc_release(i8* %0) nounwind
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ret void
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}
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; Trivial retain+autoreleaserelease pair. Don't delete!
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; Also, add a tail keyword, since objc_retain can never be passed
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; a stack argument.
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; CHECK: define void @test11(
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; CHECK: tail call i8* @objc_retain(i8* %x) nounwind
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; CHECK: tail call i8* @objc_autorelease(i8* %0) nounwind
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; CHECK: }
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define void @test11(i8* %x) nounwind {
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entry:
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%0 = call i8* @objc_retain(i8* %x) nounwind
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call i8* @objc_autorelease(i8* %0) nounwind
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call void @use_pointer(i8* %x)
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ret void
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}
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; Same as test11 but with no use_pointer call. Delete the pair!
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; CHECK: define void @test11a(
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; CHECK: entry:
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; CHECK-NEXT: ret void
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; CHECK: }
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define void @test11a(i8* %x) nounwind {
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entry:
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%0 = call i8* @objc_retain(i8* %x) nounwind
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call i8* @objc_autorelease(i8* %0) nounwind
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ret void
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}
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; Same as test11 but the value is returned. Do an RV optimization.
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; CHECK: define i8* @test11b(
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; CHECK: tail call i8* @objc_retain(i8* %x) nounwind
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; CHECK: tail call i8* @objc_autoreleaseReturnValue(i8* %0) nounwind
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; CHECK: }
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define i8* @test11b(i8* %x) nounwind {
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entry:
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%0 = call i8* @objc_retain(i8* %x) nounwind
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call i8* @objc_autorelease(i8* %0) nounwind
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ret i8* %x
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}
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; Trivial retain,release pair with intervening call, but it's dominated
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; by another retain - delete!
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; CHECK: define void @test12(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: @objc_retain(i8* %x)
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; CHECK-NOT: @objc_
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; CHECK: }
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define void @test12(i8* %x, i64 %n) {
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entry:
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call i8* @objc_retain(i8* %x) nounwind
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call i8* @objc_retain(i8* %x) nounwind
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call void @use_pointer(i8* %x)
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call void @use_pointer(i8* %x)
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call void @objc_release(i8* %x) nounwind
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ret void
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}
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; Trivial retain,autorelease pair. Don't delete!
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; CHECK: define void @test13(
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; CHECK: tail call i8* @objc_retain(i8* %x) nounwind
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; CHECK: tail call i8* @objc_retain(i8* %x) nounwind
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; CHECK: @use_pointer(i8* %x)
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; CHECK: tail call i8* @objc_autorelease(i8* %x) nounwind
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; CHECK: }
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define void @test13(i8* %x, i64 %n) {
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entry:
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call i8* @objc_retain(i8* %x) nounwind
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call i8* @objc_retain(i8* %x) nounwind
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call void @use_pointer(i8* %x)
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call i8* @objc_autorelease(i8* %x) nounwind
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ret void
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}
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; Delete the retain+release pair.
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; CHECK: define void @test13b
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; CHECK-NEXT: entry:
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; CHECK-NEXT: @objc_retain(i8* %x)
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; CHECK-NEXT: @use_pointer
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; CHECK-NEXT: @use_pointer
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; CHECK-NEXT: ret void
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define void @test13b(i8* %x, i64 %n) {
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entry:
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call i8* @objc_retain(i8* %x) nounwind
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call i8* @objc_retain(i8* %x) nounwind
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call void @use_pointer(i8* %x)
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call void @use_pointer(i8* %x)
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call void @objc_release(i8* %x) nounwind
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ret void
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}
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|
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; Don't delete the retain+release pair because there's an
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; autoreleasePoolPop in the way.
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; CHECK: define void @test13c
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; CHECK: @objc_retain(i8* %x)
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; CHECK: @objc_autoreleasePoolPop
|
|
; CHECK: @objc_retain(i8* %x)
|
|
; CHECK: @use_pointer
|
|
; CHECK: @objc_release
|
|
; CHECK: }
|
|
define void @test13c(i8* %x, i64 %n) {
|
|
entry:
|
|
call i8* @objc_retain(i8* %x) nounwind
|
|
call void @objc_autoreleasePoolPop(i8* undef)
|
|
call i8* @objc_retain(i8* %x) nounwind
|
|
call void @use_pointer(i8* %x)
|
|
call void @use_pointer(i8* %x)
|
|
call void @objc_release(i8* %x) nounwind
|
|
ret void
|
|
}
|
|
|
|
; Like test13c, but there's an autoreleasePoolPush in the way, but that
|
|
; doesn't matter.
|
|
|
|
; CHECK: define void @test13d
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: @objc_retain(i8* %x)
|
|
; CHECK-NEXT: @objc_autoreleasePoolPush
|
|
; CHECK-NEXT: @use_pointer
|
|
; CHECK-NEXT: @use_pointer
|
|
; CHECK-NEXT: ret void
|
|
define void @test13d(i8* %x, i64 %n) {
|
|
entry:
|
|
call i8* @objc_retain(i8* %x) nounwind
|
|
call void @objc_autoreleasePoolPush()
|
|
call i8* @objc_retain(i8* %x) nounwind
|
|
call void @use_pointer(i8* %x)
|
|
call void @use_pointer(i8* %x)
|
|
call void @objc_release(i8* %x) nounwind
|
|
ret void
|
|
}
|
|
|
|
; Trivial retain,release pair with intervening call, but it's post-dominated
|
|
; by another release - delete!
|
|
|
|
; CHECK: define void @test14(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: @use_pointer
|
|
; CHECK-NEXT: @use_pointer
|
|
; CHECK-NEXT: @objc_release
|
|
; CHECK-NEXT: ret void
|
|
; CHECK-NEXT: }
|
|
define void @test14(i8* %x, i64 %n) {
|
|
entry:
|
|
call i8* @objc_retain(i8* %x) nounwind
|
|
call void @use_pointer(i8* %x)
|
|
call void @use_pointer(i8* %x)
|
|
call void @objc_release(i8* %x) nounwind
|
|
call void @objc_release(i8* %x) nounwind
|
|
ret void
|
|
}
|
|
|
|
; Trivial retain,autorelease pair with intervening call, but it's post-dominated
|
|
; by another release. Don't delete anything.
|
|
|
|
; CHECK: define void @test15(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: @objc_retain(i8* %x)
|
|
; CHECK-NEXT: @use_pointer
|
|
; CHECK-NEXT: @objc_autorelease(i8* %x)
|
|
; CHECK-NEXT: @objc_release
|
|
; CHECK-NEXT: ret void
|
|
; CHECK-NEXT: }
|
|
define void @test15(i8* %x, i64 %n) {
|
|
entry:
|
|
call i8* @objc_retain(i8* %x) nounwind
|
|
call void @use_pointer(i8* %x)
|
|
call i8* @objc_autorelease(i8* %x) nounwind
|
|
call void @objc_release(i8* %x) nounwind
|
|
ret void
|
|
}
|
|
|
|
; Trivial retain,autorelease pair, post-dominated
|
|
; by another release. Delete the retain and release.
|
|
|
|
; CHECK: define void @test15b
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: @objc_autorelease
|
|
; CHECK-NEXT: ret void
|
|
; CHECK-NEXT: }
|
|
define void @test15b(i8* %x, i64 %n) {
|
|
entry:
|
|
call i8* @objc_retain(i8* %x) nounwind
|
|
call i8* @objc_autorelease(i8* %x) nounwind
|
|
call void @objc_release(i8* %x) nounwind
|
|
ret void
|
|
}
|
|
|
|
; Retain+release pairs in diamonds, all dominated by a retain.
|
|
|
|
; CHECK: define void @test16(
|
|
; CHECK: @objc_retain(i8* %x)
|
|
; CHECK-NOT: @objc
|
|
; CHECK: }
|
|
define void @test16(i1 %a, i1 %b, i8* %x) {
|
|
entry:
|
|
call i8* @objc_retain(i8* %x) nounwind
|
|
br i1 %a, label %red, label %orange
|
|
|
|
red:
|
|
call i8* @objc_retain(i8* %x) nounwind
|
|
br label %yellow
|
|
|
|
orange:
|
|
call i8* @objc_retain(i8* %x) nounwind
|
|
br label %yellow
|
|
|
|
yellow:
|
|
call void @use_pointer(i8* %x)
|
|
call void @use_pointer(i8* %x)
|
|
br i1 %b, label %green, label %blue
|
|
|
|
green:
|
|
call void @objc_release(i8* %x) nounwind
|
|
br label %purple
|
|
|
|
blue:
|
|
call void @objc_release(i8* %x) nounwind
|
|
br label %purple
|
|
|
|
purple:
|
|
ret void
|
|
}
|
|
|
|
; Retain+release pairs in diamonds, all post-dominated by a release.
|
|
|
|
; CHECK: define void @test17(
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: purple:
|
|
; CHECK: @objc_release
|
|
; CHECK: }
|
|
define void @test17(i1 %a, i1 %b, i8* %x) {
|
|
entry:
|
|
br i1 %a, label %red, label %orange
|
|
|
|
red:
|
|
call i8* @objc_retain(i8* %x) nounwind
|
|
br label %yellow
|
|
|
|
orange:
|
|
call i8* @objc_retain(i8* %x) nounwind
|
|
br label %yellow
|
|
|
|
yellow:
|
|
call void @use_pointer(i8* %x)
|
|
call void @use_pointer(i8* %x)
|
|
br i1 %b, label %green, label %blue
|
|
|
|
green:
|
|
call void @objc_release(i8* %x) nounwind
|
|
br label %purple
|
|
|
|
blue:
|
|
call void @objc_release(i8* %x) nounwind
|
|
br label %purple
|
|
|
|
purple:
|
|
call void @objc_release(i8* %x) nounwind
|
|
ret void
|
|
}
|
|
|
|
; Delete no-ops.
|
|
|
|
; CHECK: define void @test18(
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: }
|
|
define void @test18() {
|
|
call i8* @objc_retain(i8* null)
|
|
call void @objc_release(i8* null)
|
|
call i8* @objc_autorelease(i8* null)
|
|
ret void
|
|
}
|
|
|
|
; Delete no-ops where undef can be assumed to be null.
|
|
|
|
; CHECK: define void @test18b
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: }
|
|
define void @test18b() {
|
|
call i8* @objc_retain(i8* undef)
|
|
call void @objc_release(i8* undef)
|
|
call i8* @objc_autorelease(i8* undef)
|
|
ret void
|
|
}
|
|
|
|
; Replace uses of arguments with uses of return values, to reduce
|
|
; register pressure.
|
|
|
|
; CHECK: define void @test19(i32* %y) {
|
|
; CHECK: %z = bitcast i32* %y to i8*
|
|
; CHECK: %0 = bitcast i32* %y to i8*
|
|
; CHECK: %1 = tail call i8* @objc_retain(i8* %0)
|
|
; CHECK: call void @use_pointer(i8* %z)
|
|
; CHECK: call void @use_pointer(i8* %z)
|
|
; CHECK: %2 = bitcast i32* %y to i8*
|
|
; CHECK: call void @objc_release(i8* %2)
|
|
; CHECK: ret void
|
|
; CHECK: }
|
|
define void @test19(i32* %y) {
|
|
entry:
|
|
%x = bitcast i32* %y to i8*
|
|
%0 = call i8* @objc_retain(i8* %x) nounwind
|
|
%z = bitcast i32* %y to i8*
|
|
call void @use_pointer(i8* %z)
|
|
call void @use_pointer(i8* %z)
|
|
call void @objc_release(i8* %x)
|
|
ret void
|
|
}
|
|
|
|
; Bitcast insertion
|
|
|
|
; CHECK: define void @test20(
|
|
; CHECK: %tmp1 = tail call i8* @objc_retain(i8* %tmp) nounwind
|
|
; CHECK-NEXT: invoke
|
|
define void @test20(double* %self) {
|
|
if.then12:
|
|
%tmp = bitcast double* %self to i8*
|
|
%tmp1 = call i8* @objc_retain(i8* %tmp) nounwind
|
|
invoke void @invokee()
|
|
to label %invoke.cont23 unwind label %lpad20
|
|
|
|
invoke.cont23: ; preds = %if.then12
|
|
invoke void @invokee()
|
|
to label %if.end unwind label %lpad20
|
|
|
|
lpad20: ; preds = %invoke.cont23, %if.then12
|
|
%tmp502 = phi double* [ undef, %invoke.cont23 ], [ %self, %if.then12 ]
|
|
%exn = landingpad {i8*, i32} personality i32 (...)* @__gxx_personality_v0
|
|
cleanup
|
|
unreachable
|
|
|
|
if.end: ; preds = %invoke.cont23
|
|
ret void
|
|
}
|
|
|
|
; Delete a redundant retain,autorelease when forwaring a call result
|
|
; directly to a return value.
|
|
|
|
; CHECK: define i8* @test21(
|
|
; CHECK: call i8* @returner()
|
|
; CHECK-NEXT: ret i8* %call
|
|
define i8* @test21() {
|
|
entry:
|
|
%call = call i8* @returner()
|
|
%0 = call i8* @objc_retain(i8* %call) nounwind
|
|
%1 = call i8* @objc_autorelease(i8* %0) nounwind
|
|
ret i8* %1
|
|
}
|
|
|
|
; Move an objc call up through a phi that has null operands.
|
|
|
|
; CHECK: define void @test22(
|
|
; CHECK: B:
|
|
; CHECK: %1 = bitcast double* %p to i8*
|
|
; CHECK: call void @objc_release(i8* %1)
|
|
; CHECK: br label %C
|
|
; CHECK: C: ; preds = %B, %A
|
|
; CHECK-NOT: @objc_release
|
|
; CHECK: }
|
|
define void @test22(double* %p, i1 %a) {
|
|
br i1 %a, label %A, label %B
|
|
A:
|
|
br label %C
|
|
B:
|
|
br label %C
|
|
C:
|
|
%h = phi double* [ null, %A ], [ %p, %B ]
|
|
%c = bitcast double* %h to i8*
|
|
call void @objc_release(i8* %c)
|
|
ret void
|
|
}
|
|
|
|
; Optimize objc_retainBlock.
|
|
|
|
; CHECK: define void @test23(
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: }
|
|
%block0 = type { i64, i64, i8*, i8* }
|
|
%block1 = type { i8**, i32, i32, i32 (%struct.__block_literal_1*)*, %block0* }
|
|
%struct.__block_descriptor = type { i64, i64 }
|
|
%struct.__block_literal_1 = type { i8**, i32, i32, i8**, %struct.__block_descriptor* }
|
|
@__block_holder_tmp_1 = external constant %block1
|
|
define void @test23() {
|
|
entry:
|
|
%0 = call i8* @objc_retainBlock(i8* bitcast (%block1* @__block_holder_tmp_1 to i8*)) nounwind
|
|
call void @bar(i32 ()* bitcast (%block1* @__block_holder_tmp_1 to i32 ()*))
|
|
call void @bar(i32 ()* bitcast (%block1* @__block_holder_tmp_1 to i32 ()*))
|
|
call void @objc_release(i8* bitcast (%block1* @__block_holder_tmp_1 to i8*)) nounwind
|
|
ret void
|
|
}
|
|
|
|
; Don't optimize objc_retainBlock.
|
|
|
|
; CHECK: define void @test23b
|
|
; CHECK: @objc_retainBlock
|
|
; CHECK: @objc_release
|
|
; CHECK: }
|
|
define void @test23b(i8* %p) {
|
|
entry:
|
|
%0 = call i8* @objc_retainBlock(i8* %p) nounwind
|
|
call void @callee()
|
|
call void @use_pointer(i8* %p)
|
|
call void @objc_release(i8* %p) nounwind
|
|
ret void
|
|
}
|
|
|
|
; Any call can decrement a retain count.
|
|
|
|
; CHECK: define void @test24(
|
|
; CHECK: @objc_retain(i8* %a)
|
|
; CHECK: @objc_release
|
|
; CHECK: }
|
|
define void @test24(i8* %r, i8* %a) {
|
|
call i8* @objc_retain(i8* %a)
|
|
call void @use_pointer(i8* %r)
|
|
%q = load i8* %a
|
|
call void @objc_release(i8* %a)
|
|
ret void
|
|
}
|
|
|
|
; Don't move a retain/release pair if the release can be moved
|
|
; but the retain can't be moved to balance it.
|
|
|
|
; CHECK: define void @test25(
|
|
; CHECK: entry:
|
|
; CHECK: call i8* @objc_retain(i8* %p)
|
|
; CHECK: true:
|
|
; CHECK: done:
|
|
; CHECK: call void @objc_release(i8* %p)
|
|
; CHECK: }
|
|
define void @test25(i8* %p, i1 %x) {
|
|
entry:
|
|
%f0 = call i8* @objc_retain(i8* %p)
|
|
call void @callee()
|
|
br i1 %x, label %true, label %done
|
|
|
|
true:
|
|
store i8 0, i8* %p
|
|
br label %done
|
|
|
|
done:
|
|
call void @objc_release(i8* %p)
|
|
ret void
|
|
}
|
|
|
|
; Don't move a retain/release pair if the retain can be moved
|
|
; but the release can't be moved to balance it.
|
|
|
|
; CHECK: define void @test26(
|
|
; CHECK: entry:
|
|
; CHECK: call i8* @objc_retain(i8* %p)
|
|
; CHECK: true:
|
|
; CHECK: done:
|
|
; CHECK: call void @objc_release(i8* %p)
|
|
; CHECK: }
|
|
define void @test26(i8* %p, i1 %x) {
|
|
entry:
|
|
%f0 = call i8* @objc_retain(i8* %p)
|
|
br i1 %x, label %true, label %done
|
|
|
|
true:
|
|
call void @callee()
|
|
br label %done
|
|
|
|
done:
|
|
store i8 0, i8* %p
|
|
call void @objc_release(i8* %p)
|
|
ret void
|
|
}
|
|
|
|
; Don't sink the retain,release into the loop.
|
|
|
|
; CHECK: define void @test27(
|
|
; CHECK: entry:
|
|
; CHECK: call i8* @objc_retain(i8* %p)
|
|
; CHECK: loop:
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: done:
|
|
; CHECK: call void @objc_release
|
|
; CHECK: }
|
|
define void @test27(i8* %p, i1 %x, i1 %y) {
|
|
entry:
|
|
%f0 = call i8* @objc_retain(i8* %p)
|
|
br i1 %x, label %loop, label %done
|
|
|
|
loop:
|
|
call void @callee()
|
|
store i8 0, i8* %p
|
|
br i1 %y, label %done, label %loop
|
|
|
|
done:
|
|
call void @objc_release(i8* %p)
|
|
ret void
|
|
}
|
|
|
|
; Trivial code motion case: Triangle.
|
|
|
|
; CHECK: define void @test28(
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: true:
|
|
; CHECK: call i8* @objc_retain(
|
|
; CHECK: call void @callee()
|
|
; CHECK: store
|
|
; CHECK: call void @objc_release
|
|
; CHECK: done:
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: }
|
|
define void @test28(i8* %p, i1 %x) {
|
|
entry:
|
|
%f0 = call i8* @objc_retain(i8* %p)
|
|
br i1 %x, label %true, label %done
|
|
|
|
true:
|
|
call void @callee()
|
|
store i8 0, i8* %p
|
|
br label %done
|
|
|
|
done:
|
|
call void @objc_release(i8* %p), !clang.imprecise_release !0
|
|
ret void
|
|
}
|
|
|
|
; Trivial code motion case: Triangle, but no metadata. Don't move past
|
|
; unrelated memory references!
|
|
|
|
; CHECK: define void @test28b
|
|
; CHECK: call i8* @objc_retain(
|
|
; CHECK: true:
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: call void @callee()
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: store
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: done:
|
|
; CHECK: @objc_release
|
|
; CHECK: }
|
|
define void @test28b(i8* %p, i1 %x, i8* noalias %t) {
|
|
entry:
|
|
%f0 = call i8* @objc_retain(i8* %p)
|
|
br i1 %x, label %true, label %done
|
|
|
|
true:
|
|
call void @callee()
|
|
store i8 0, i8* %p
|
|
br label %done
|
|
|
|
done:
|
|
store i8 0, i8* %t
|
|
call void @objc_release(i8* %p)
|
|
ret void
|
|
}
|
|
|
|
; Trivial code motion case: Triangle, with metadata. Do move past
|
|
; unrelated memory references! And preserve the metadata.
|
|
|
|
; CHECK: define void @test28c
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: true:
|
|
; CHECK: call i8* @objc_retain(
|
|
; CHECK: call void @callee()
|
|
; CHECK: store
|
|
; CHECK: call void @objc_release(i8* %p) nounwind, !clang.imprecise_release
|
|
; CHECK: done:
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: }
|
|
define void @test28c(i8* %p, i1 %x, i8* noalias %t) {
|
|
entry:
|
|
%f0 = call i8* @objc_retain(i8* %p)
|
|
br i1 %x, label %true, label %done
|
|
|
|
true:
|
|
call void @callee()
|
|
store i8 0, i8* %p
|
|
br label %done
|
|
|
|
done:
|
|
store i8 0, i8* %t
|
|
call void @objc_release(i8* %p), !clang.imprecise_release !0
|
|
ret void
|
|
}
|
|
|
|
; Like test28. but with two releases.
|
|
|
|
; CHECK: define void @test29(
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: true:
|
|
; CHECK: call i8* @objc_retain(
|
|
; CHECK: call void @callee()
|
|
; CHECK: store
|
|
; CHECK: call void @objc_release
|
|
; CHECK-NOT: @objc_release
|
|
; CHECK: done:
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: ohno:
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: }
|
|
define void @test29(i8* %p, i1 %x, i1 %y) {
|
|
entry:
|
|
%f0 = call i8* @objc_retain(i8* %p)
|
|
br i1 %x, label %true, label %done
|
|
|
|
true:
|
|
call void @callee()
|
|
store i8 0, i8* %p
|
|
br i1 %y, label %done, label %ohno
|
|
|
|
done:
|
|
call void @objc_release(i8* %p)
|
|
ret void
|
|
|
|
ohno:
|
|
call void @objc_release(i8* %p)
|
|
ret void
|
|
}
|
|
|
|
; Basic case with the use and call in a diamond
|
|
; with an extra release.
|
|
|
|
; CHECK: define void @test30(
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: true:
|
|
; CHECK: call i8* @objc_retain(
|
|
; CHECK: call void @callee()
|
|
; CHECK: store
|
|
; CHECK: call void @objc_release
|
|
; CHECK-NOT: @objc_release
|
|
; CHECK: false:
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: done:
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: ohno:
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: }
|
|
define void @test30(i8* %p, i1 %x, i1 %y, i1 %z) {
|
|
entry:
|
|
%f0 = call i8* @objc_retain(i8* %p)
|
|
br i1 %x, label %true, label %false
|
|
|
|
true:
|
|
call void @callee()
|
|
store i8 0, i8* %p
|
|
br i1 %y, label %done, label %ohno
|
|
|
|
false:
|
|
br i1 %z, label %done, label %ohno
|
|
|
|
done:
|
|
call void @objc_release(i8* %p)
|
|
ret void
|
|
|
|
ohno:
|
|
call void @objc_release(i8* %p)
|
|
ret void
|
|
}
|
|
|
|
; Basic case with a mergeable release.
|
|
|
|
; CHECK: define void @test31(
|
|
; CHECK: call i8* @objc_retain(i8* %p)
|
|
; CHECK: call void @callee()
|
|
; CHECK: store
|
|
; CHECK: call void @objc_release
|
|
; CHECK-NOT: @objc_release
|
|
; CHECK: true:
|
|
; CHECK-NOT: @objc_release
|
|
; CHECK: false:
|
|
; CHECK-NOT: @objc_release
|
|
; CHECK: ret void
|
|
; CHECK-NOT: @objc_release
|
|
; CHECK: }
|
|
define void @test31(i8* %p, i1 %x) {
|
|
entry:
|
|
%f0 = call i8* @objc_retain(i8* %p)
|
|
call void @callee()
|
|
store i8 0, i8* %p
|
|
br i1 %x, label %true, label %false
|
|
true:
|
|
call void @objc_release(i8* %p)
|
|
ret void
|
|
false:
|
|
call void @objc_release(i8* %p)
|
|
ret void
|
|
}
|
|
|
|
; Don't consider bitcasts or getelementptrs direct uses.
|
|
|
|
; CHECK: define void @test32(
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: true:
|
|
; CHECK: call i8* @objc_retain(
|
|
; CHECK: call void @callee()
|
|
; CHECK: store
|
|
; CHECK: call void @objc_release
|
|
; CHECK: done:
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: }
|
|
define void @test32(i8* %p, i1 %x) {
|
|
entry:
|
|
%f0 = call i8* @objc_retain(i8* %p)
|
|
br i1 %x, label %true, label %done
|
|
|
|
true:
|
|
call void @callee()
|
|
store i8 0, i8* %p
|
|
br label %done
|
|
|
|
done:
|
|
%g = bitcast i8* %p to i8*
|
|
%h = getelementptr i8* %g, i64 0
|
|
call void @objc_release(i8* %g)
|
|
ret void
|
|
}
|
|
|
|
; Do consider icmps to be direct uses.
|
|
|
|
; CHECK: define void @test33(
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: true:
|
|
; CHECK: call i8* @objc_retain(
|
|
; CHECK: call void @callee()
|
|
; CHECK: icmp
|
|
; CHECK: call void @objc_release
|
|
; CHECK: done:
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: }
|
|
define void @test33(i8* %p, i1 %x, i8* %y) {
|
|
entry:
|
|
%f0 = call i8* @objc_retain(i8* %p)
|
|
br i1 %x, label %true, label %done
|
|
|
|
true:
|
|
call void @callee()
|
|
%v = icmp eq i8* %p, %y
|
|
br label %done
|
|
|
|
done:
|
|
%g = bitcast i8* %p to i8*
|
|
%h = getelementptr i8* %g, i64 0
|
|
call void @objc_release(i8* %g)
|
|
ret void
|
|
}
|
|
|
|
; Delete retain,release if there's just a possible dec.
|
|
|
|
; CHECK: define void @test34(
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: }
|
|
define void @test34(i8* %p, i1 %x, i8* %y) {
|
|
entry:
|
|
%f0 = call i8* @objc_retain(i8* %p)
|
|
br i1 %x, label %true, label %done
|
|
|
|
true:
|
|
call void @callee()
|
|
br label %done
|
|
|
|
done:
|
|
%g = bitcast i8* %p to i8*
|
|
%h = getelementptr i8* %g, i64 0
|
|
call void @objc_release(i8* %g)
|
|
ret void
|
|
}
|
|
|
|
; Delete retain,release if there's just a use.
|
|
|
|
; CHECK: define void @test35(
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: }
|
|
define void @test35(i8* %p, i1 %x, i8* %y) {
|
|
entry:
|
|
%f0 = call i8* @objc_retain(i8* %p)
|
|
br i1 %x, label %true, label %done
|
|
|
|
true:
|
|
%v = icmp eq i8* %p, %y
|
|
br label %done
|
|
|
|
done:
|
|
%g = bitcast i8* %p to i8*
|
|
%h = getelementptr i8* %g, i64 0
|
|
call void @objc_release(i8* %g)
|
|
ret void
|
|
}
|
|
|
|
; Delete a retain,release if there's no actual use.
|
|
|
|
; CHECK: define void @test36(
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: call void @callee()
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: call void @callee()
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: }
|
|
define void @test36(i8* %p) {
|
|
entry:
|
|
call i8* @objc_retain(i8* %p)
|
|
call void @callee()
|
|
call void @callee()
|
|
call void @objc_release(i8* %p)
|
|
ret void
|
|
}
|
|
|
|
; Like test36, but with metadata.
|
|
|
|
; CHECK: define void @test37(
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: }
|
|
define void @test37(i8* %p) {
|
|
entry:
|
|
call i8* @objc_retain(i8* %p)
|
|
call void @callee()
|
|
call void @callee()
|
|
call void @objc_release(i8* %p), !clang.imprecise_release !0
|
|
ret void
|
|
}
|
|
|
|
; Be aggressive about analyzing phis to eliminate possible uses.
|
|
|
|
; CHECK: define void @test38(
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: }
|
|
define void @test38(i8* %p, i1 %u, i1 %m, i8* %z, i8* %y, i8* %x, i8* %w) {
|
|
entry:
|
|
call i8* @objc_retain(i8* %p)
|
|
br i1 %u, label %true, label %false
|
|
true:
|
|
br i1 %m, label %a, label %b
|
|
false:
|
|
br i1 %m, label %c, label %d
|
|
a:
|
|
br label %e
|
|
b:
|
|
br label %e
|
|
c:
|
|
br label %f
|
|
d:
|
|
br label %f
|
|
e:
|
|
%j = phi i8* [ %z, %a ], [ %y, %b ]
|
|
br label %g
|
|
f:
|
|
%k = phi i8* [ %w, %c ], [ %x, %d ]
|
|
br label %g
|
|
g:
|
|
%h = phi i8* [ %j, %e ], [ %k, %f ]
|
|
call void @use_pointer(i8* %h)
|
|
call void @objc_release(i8* %p), !clang.imprecise_release !0
|
|
ret void
|
|
}
|
|
|
|
; Delete retain,release pairs around loops.
|
|
|
|
; CHECK: define void @test39(
|
|
; CHECK_NOT: @objc_
|
|
; CHECK: }
|
|
define void @test39(i8* %p) {
|
|
entry:
|
|
%0 = call i8* @objc_retain(i8* %p)
|
|
br label %loop
|
|
|
|
loop: ; preds = %loop, %entry
|
|
br i1 undef, label %loop, label %exit
|
|
|
|
exit: ; preds = %loop
|
|
call void @objc_release(i8* %0), !clang.imprecise_release !0
|
|
ret void
|
|
}
|
|
|
|
; Delete retain,release pairs around loops containing uses.
|
|
|
|
; CHECK: define void @test39b(
|
|
; CHECK_NOT: @objc_
|
|
; CHECK: }
|
|
define void @test39b(i8* %p) {
|
|
entry:
|
|
%0 = call i8* @objc_retain(i8* %p)
|
|
br label %loop
|
|
|
|
loop: ; preds = %loop, %entry
|
|
store i8 0, i8* %0
|
|
br i1 undef, label %loop, label %exit
|
|
|
|
exit: ; preds = %loop
|
|
call void @objc_release(i8* %0), !clang.imprecise_release !0
|
|
ret void
|
|
}
|
|
|
|
; Delete retain,release pairs around loops containing potential decrements.
|
|
|
|
; CHECK: define void @test39c(
|
|
; CHECK_NOT: @objc_
|
|
; CHECK: }
|
|
define void @test39c(i8* %p) {
|
|
entry:
|
|
%0 = call i8* @objc_retain(i8* %p)
|
|
br label %loop
|
|
|
|
loop: ; preds = %loop, %entry
|
|
call void @use_pointer(i8* %0)
|
|
br i1 undef, label %loop, label %exit
|
|
|
|
exit: ; preds = %loop
|
|
call void @objc_release(i8* %0), !clang.imprecise_release !0
|
|
ret void
|
|
}
|
|
|
|
; Delete retain,release pairs around loops even if
|
|
; the successors are in a different order.
|
|
|
|
; CHECK: define void @test40(
|
|
; CHECK_NOT: @objc_
|
|
; CHECK: }
|
|
define void @test40(i8* %p) {
|
|
entry:
|
|
%0 = call i8* @objc_retain(i8* %p)
|
|
br label %loop
|
|
|
|
loop: ; preds = %loop, %entry
|
|
call void @use_pointer(i8* %0)
|
|
br i1 undef, label %exit, label %loop
|
|
|
|
exit: ; preds = %loop
|
|
call void @objc_release(i8* %0), !clang.imprecise_release !0
|
|
ret void
|
|
}
|
|
|
|
; Do the known-incremented retain+release elimination even if the pointer
|
|
; is also autoreleased.
|
|
|
|
; CHECK: define void @test42(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: call i8* @objc_retain(i8* %p)
|
|
; CHECK-NEXT: call i8* @objc_autorelease(i8* %p)
|
|
; CHECK-NEXT: call void @use_pointer(i8* %p)
|
|
; CHECK-NEXT: call void @use_pointer(i8* %p)
|
|
; CHECK-NEXT: ret void
|
|
; CHECK-NEXT: }
|
|
define void @test42(i8* %p) {
|
|
entry:
|
|
call i8* @objc_retain(i8* %p)
|
|
call i8* @objc_autorelease(i8* %p)
|
|
call i8* @objc_retain(i8* %p)
|
|
call void @use_pointer(i8* %p)
|
|
call void @use_pointer(i8* %p)
|
|
call void @objc_release(i8* %p)
|
|
ret void
|
|
}
|
|
|
|
; Don't the known-incremented retain+release elimination if the pointer is
|
|
; autoreleased and there's an autoreleasePoolPop.
|
|
|
|
; CHECK: define void @test43(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: call i8* @objc_retain(i8* %p)
|
|
; CHECK-NEXT: call i8* @objc_autorelease(i8* %p)
|
|
; CHECK-NEXT: call i8* @objc_retain
|
|
; CHECK-NEXT: call void @use_pointer(i8* %p)
|
|
; CHECK-NEXT: call void @use_pointer(i8* %p)
|
|
; CHECK-NEXT: call void @objc_autoreleasePoolPop(i8* undef)
|
|
; CHECK-NEXT: call void @objc_release
|
|
; CHECK-NEXT: ret void
|
|
; CHECK-NEXT: }
|
|
define void @test43(i8* %p) {
|
|
entry:
|
|
call i8* @objc_retain(i8* %p)
|
|
call i8* @objc_autorelease(i8* %p)
|
|
call i8* @objc_retain(i8* %p)
|
|
call void @use_pointer(i8* %p)
|
|
call void @use_pointer(i8* %p)
|
|
call void @objc_autoreleasePoolPop(i8* undef)
|
|
call void @objc_release(i8* %p)
|
|
ret void
|
|
}
|
|
|
|
; Do the known-incremented retain+release elimination if the pointer is
|
|
; autoreleased and there's an autoreleasePoolPush.
|
|
|
|
; CHECK: define void @test43b
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: call i8* @objc_retain(i8* %p)
|
|
; CHECK-NEXT: call i8* @objc_autorelease(i8* %p)
|
|
; CHECK-NEXT: call void @use_pointer(i8* %p)
|
|
; CHECK-NEXT: call void @use_pointer(i8* %p)
|
|
; CHECK-NEXT: call void @objc_autoreleasePoolPush()
|
|
; CHECK-NEXT: ret void
|
|
; CHECK-NEXT: }
|
|
define void @test43b(i8* %p) {
|
|
entry:
|
|
call i8* @objc_retain(i8* %p)
|
|
call i8* @objc_autorelease(i8* %p)
|
|
call i8* @objc_retain(i8* %p)
|
|
call void @use_pointer(i8* %p)
|
|
call void @use_pointer(i8* %p)
|
|
call void @objc_autoreleasePoolPush()
|
|
call void @objc_release(i8* %p)
|
|
ret void
|
|
}
|
|
|
|
; Do retain+release elimination for non-provenance pointers.
|
|
|
|
; CHECK: define void @test44(
|
|
; CHECK-NOT: objc_
|
|
; CHECK: }
|
|
define void @test44(i8** %pp) {
|
|
%p = load i8** %pp
|
|
%q = call i8* @objc_retain(i8* %p)
|
|
call void @objc_release(i8* %q)
|
|
ret void
|
|
}
|
|
|
|
; Don't delete retain+release with an unknown-provenance
|
|
; may-alias objc_release between them.
|
|
|
|
; CHECK: define void @test45(
|
|
; CHECK: call i8* @objc_retain(i8* %p)
|
|
; CHECK: call void @objc_release(i8* %q)
|
|
; CHECK: call void @use_pointer(i8* %p)
|
|
; CHECK: call void @objc_release(i8* %p)
|
|
define void @test45(i8** %pp, i8** %qq) {
|
|
%p = load i8** %pp
|
|
%q = load i8** %qq
|
|
call i8* @objc_retain(i8* %p)
|
|
call void @objc_release(i8* %q)
|
|
call void @use_pointer(i8* %p)
|
|
call void @objc_release(i8* %p)
|
|
ret void
|
|
}
|
|
|
|
; Don't delete retain and autorelease here.
|
|
|
|
; CHECK: define void @test46(
|
|
; CHECK: tail call i8* @objc_retain(i8* %p) nounwind
|
|
; CHECK: true:
|
|
; CHECK: tail call i8* @objc_autorelease(i8* %p) nounwind
|
|
define void @test46(i8* %p, i1 %a) {
|
|
entry:
|
|
call i8* @objc_retain(i8* %p)
|
|
br i1 %a, label %true, label %false
|
|
|
|
true:
|
|
call i8* @objc_autorelease(i8* %p)
|
|
call void @use_pointer(i8* %p)
|
|
ret void
|
|
|
|
false:
|
|
ret void
|
|
}
|
|
|
|
; Delete no-op cast calls.
|
|
|
|
; CHECK: define i8* @test47(
|
|
; CHECK-NOT: call
|
|
; CHECK: ret i8* %p
|
|
define i8* @test47(i8* %p) nounwind {
|
|
%x = call i8* @objc_retainedObject(i8* %p)
|
|
ret i8* %x
|
|
}
|
|
|
|
; Delete no-op cast calls.
|
|
|
|
; CHECK: define i8* @test48(
|
|
; CHECK-NOT: call
|
|
; CHECK: ret i8* %p
|
|
define i8* @test48(i8* %p) nounwind {
|
|
%x = call i8* @objc_unretainedObject(i8* %p)
|
|
ret i8* %x
|
|
}
|
|
|
|
; Delete no-op cast calls.
|
|
|
|
; CHECK: define i8* @test49(
|
|
; CHECK-NOT: call
|
|
; CHECK: ret i8* %p
|
|
define i8* @test49(i8* %p) nounwind {
|
|
%x = call i8* @objc_unretainedPointer(i8* %p)
|
|
ret i8* %x
|
|
}
|
|
|
|
; Do delete retain+release with intervening stores of the
|
|
; address value;
|
|
|
|
; CHECK: define void @test50(
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: }
|
|
define void @test50(i8* %p, i8** %pp) {
|
|
call i8* @objc_retain(i8* %p)
|
|
call void @callee()
|
|
store i8* %p, i8** %pp
|
|
call void @objc_release(i8* %p)
|
|
ret void
|
|
}
|
|
|
|
; Don't delete retain+release with intervening stores through the
|
|
; address value.
|
|
|
|
; CHECK: define void @test51(
|
|
; CHECK: call i8* @objc_retain(i8* %p)
|
|
; CHECK: call void @objc_release(i8* %p)
|
|
define void @test51(i8* %p) {
|
|
call i8* @objc_retain(i8* %p)
|
|
call void @callee()
|
|
store i8 0, i8* %p
|
|
call void @objc_release(i8* %p)
|
|
ret void
|
|
}
|
|
|
|
; Don't delete retain+release with intervening use of a pointer of
|
|
; unknown provenance.
|
|
|
|
; CHECK: define void @test52(
|
|
; CHECK: call i8* @objc_retain
|
|
; CHECK: call void @callee()
|
|
; CHECK: call void @use_pointer(i8* %z)
|
|
; CHECK: call void @objc_release
|
|
define void @test52(i8** %zz, i8** %pp) {
|
|
%p = load i8** %pp
|
|
%1 = call i8* @objc_retain(i8* %p)
|
|
call void @callee()
|
|
%z = load i8** %zz
|
|
call void @use_pointer(i8* %z)
|
|
call void @objc_release(i8* %p)
|
|
ret void
|
|
}
|
|
|
|
; Like test52, but the pointer has function type, so it's assumed to
|
|
; be not reference counted.
|
|
; Oops. That's wrong. Clang sometimes uses function types gratuitously.
|
|
; See rdar://10551239.
|
|
|
|
; CHECK: define void @test53(
|
|
; CHECK: @objc_
|
|
; CHECK: }
|
|
define void @test53(void ()** %zz, i8** %pp) {
|
|
%p = load i8** %pp
|
|
%1 = call i8* @objc_retain(i8* %p)
|
|
call void @callee()
|
|
%z = load void ()** %zz
|
|
call void @callee_fnptr(void ()* %z)
|
|
call void @objc_release(i8* %p)
|
|
ret void
|
|
}
|
|
|
|
; Convert autorelease to release if the value is unused.
|
|
|
|
; CHECK: define void @test54(
|
|
; CHECK: call i8* @returner()
|
|
; CHECK-NEXT: call void @objc_release(i8* %t) nounwind, !clang.imprecise_release !0
|
|
; CHECK-NEXT: ret void
|
|
define void @test54() {
|
|
%t = call i8* @returner()
|
|
call i8* @objc_autorelease(i8* %t)
|
|
ret void
|
|
}
|
|
|
|
; Nested retain+release pairs. Delete them both.
|
|
|
|
; CHECK: define void @test55(
|
|
; CHECK-NOT: @objc
|
|
; CHECK: }
|
|
define void @test55(i8* %x) {
|
|
entry:
|
|
%0 = call i8* @objc_retain(i8* %x) nounwind
|
|
%1 = call i8* @objc_retain(i8* %x) nounwind
|
|
call void @objc_release(i8* %x) nounwind
|
|
call void @objc_release(i8* %x) nounwind
|
|
ret void
|
|
}
|
|
|
|
; Nested retain+release pairs where the inner pair depends
|
|
; on the outer pair to be removed, and then the outer pair
|
|
; can be partially eliminated. Plus an extra outer pair to
|
|
; eliminate, for fun.
|
|
|
|
; CHECK: define void @test56(
|
|
; CHECK-NOT: @objc
|
|
; CHECK: if.then:
|
|
; CHECK-NEXT: %0 = tail call i8* @objc_retain(i8* %x) nounwind
|
|
; CHECK-NEXT: tail call void @use_pointer(i8* %x)
|
|
; CHECK-NEXT: tail call void @use_pointer(i8* %x)
|
|
; CHECK-NEXT: tail call void @objc_release(i8* %x) nounwind, !clang.imprecise_release !0
|
|
; CHECK-NEXT: br label %if.end
|
|
; CHECK-NOT: @objc
|
|
; CHECK: }
|
|
define void @test56(i8* %x, i32 %n) {
|
|
entry:
|
|
%0 = tail call i8* @objc_retain(i8* %x) nounwind
|
|
%1 = tail call i8* @objc_retain(i8* %0) nounwind
|
|
%tobool = icmp eq i32 %n, 0
|
|
br i1 %tobool, label %if.end, label %if.then
|
|
|
|
if.then: ; preds = %entry
|
|
%2 = tail call i8* @objc_retain(i8* %1) nounwind
|
|
tail call void @use_pointer(i8* %2)
|
|
tail call void @use_pointer(i8* %2)
|
|
tail call void @objc_release(i8* %2) nounwind, !clang.imprecise_release !0
|
|
br label %if.end
|
|
|
|
if.end: ; preds = %entry, %if.then
|
|
tail call void @objc_release(i8* %1) nounwind, !clang.imprecise_release !0
|
|
tail call void @objc_release(i8* %0) nounwind, !clang.imprecise_release !0
|
|
ret void
|
|
}
|
|
|
|
; When there are adjacent retain+release pairs, the first one is
|
|
; known unnecessary because the presence of the second one means that
|
|
; the first one won't be deleting the object.
|
|
|
|
; CHECK: define void @test57(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: call void @use_pointer(i8* %x)
|
|
; CHECK-NEXT: call void @use_pointer(i8* %x)
|
|
; CHECK-NEXT: %0 = tail call i8* @objc_retain(i8* %x) nounwind
|
|
; CHECK-NEXT: call void @use_pointer(i8* %x)
|
|
; CHECK-NEXT: call void @use_pointer(i8* %x)
|
|
; CHECK-NEXT: call void @objc_release(i8* %x) nounwind
|
|
; CHECK-NEXT: ret void
|
|
; CHECK-NEXT: }
|
|
define void @test57(i8* %x) nounwind {
|
|
entry:
|
|
call i8* @objc_retain(i8* %x) nounwind
|
|
call void @use_pointer(i8* %x)
|
|
call void @use_pointer(i8* %x)
|
|
call void @objc_release(i8* %x) nounwind
|
|
call i8* @objc_retain(i8* %x) nounwind
|
|
call void @use_pointer(i8* %x)
|
|
call void @use_pointer(i8* %x)
|
|
call void @objc_release(i8* %x) nounwind
|
|
ret void
|
|
}
|
|
|
|
; An adjacent retain+release pair is sufficient even if it will be
|
|
; removed itself.
|
|
|
|
; CHECK: define void @test58(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: call void @use_pointer(i8* %x)
|
|
; CHECK-NEXT: call void @use_pointer(i8* %x)
|
|
; CHECK-NEXT: ret void
|
|
; CHECK-NEXT: }
|
|
define void @test58(i8* %x) nounwind {
|
|
entry:
|
|
call i8* @objc_retain(i8* %x) nounwind
|
|
call void @use_pointer(i8* %x)
|
|
call void @use_pointer(i8* %x)
|
|
call void @objc_release(i8* %x) nounwind
|
|
call i8* @objc_retain(i8* %x) nounwind
|
|
call void @objc_release(i8* %x) nounwind
|
|
ret void
|
|
}
|
|
|
|
; Don't delete the second retain+release pair in an adjacent set.
|
|
|
|
; CHECK: define void @test59(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: %0 = tail call i8* @objc_retain(i8* %x) nounwind
|
|
; CHECK-NEXT: call void @use_pointer(i8* %x)
|
|
; CHECK-NEXT: call void @use_pointer(i8* %x)
|
|
; CHECK-NEXT: call void @objc_release(i8* %x) nounwind
|
|
; CHECK-NEXT: ret void
|
|
; CHECK-NEXT: }
|
|
define void @test59(i8* %x) nounwind {
|
|
entry:
|
|
%a = call i8* @objc_retain(i8* %x) nounwind
|
|
call void @objc_release(i8* %x) nounwind
|
|
%b = call i8* @objc_retain(i8* %x) nounwind
|
|
call void @use_pointer(i8* %x)
|
|
call void @use_pointer(i8* %x)
|
|
call void @objc_release(i8* %x) nounwind
|
|
ret void
|
|
}
|
|
|
|
; Constant pointers to objects don't need reference counting.
|
|
|
|
@constptr = external constant i8*
|
|
@something = external global i8*
|
|
|
|
; CHECK: define void @test60(
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: }
|
|
define void @test60() {
|
|
%t = load i8** @constptr
|
|
%s = load i8** @something
|
|
call i8* @objc_retain(i8* %s)
|
|
call void @callee()
|
|
call void @use_pointer(i8* %t)
|
|
call void @objc_release(i8* %s)
|
|
ret void
|
|
}
|
|
|
|
; Constant pointers to objects don't need to be considered related to other
|
|
; pointers.
|
|
|
|
; CHECK: define void @test61(
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: }
|
|
define void @test61() {
|
|
%t = load i8** @constptr
|
|
call i8* @objc_retain(i8* %t)
|
|
call void @callee()
|
|
call void @use_pointer(i8* %t)
|
|
call void @objc_release(i8* %t)
|
|
ret void
|
|
}
|
|
|
|
declare void @bar(i32 ()*)
|
|
|
|
; A few real-world testcases.
|
|
|
|
@.str4 = private unnamed_addr constant [33 x i8] c"-[A z] = { %f, %f, { %f, %f } }\0A\00"
|
|
@"OBJC_IVAR_$_A.myZ" = global i64 20, section "__DATA, __objc_const", align 8
|
|
declare i32 @printf(i8* nocapture, ...) nounwind
|
|
declare i32 @puts(i8* nocapture) nounwind
|
|
@str = internal constant [16 x i8] c"-[ Top0 _getX ]\00"
|
|
|
|
; CHECK: @"\01-[A z]"
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: }
|
|
|
|
define {<2 x float>, <2 x float>} @"\01-[A z]"({}* %self, i8* nocapture %_cmd) nounwind {
|
|
invoke.cont:
|
|
%0 = bitcast {}* %self to i8*
|
|
%1 = tail call i8* @objc_retain(i8* %0) nounwind
|
|
tail call void @llvm.dbg.value(metadata !{{}* %self}, i64 0, metadata !0)
|
|
tail call void @llvm.dbg.value(metadata !{{}* %self}, i64 0, metadata !0)
|
|
%ivar = load i64* @"OBJC_IVAR_$_A.myZ", align 8
|
|
%add.ptr = getelementptr i8* %0, i64 %ivar
|
|
%tmp1 = bitcast i8* %add.ptr to float*
|
|
%tmp2 = load float* %tmp1, align 4
|
|
%conv = fpext float %tmp2 to double
|
|
%add.ptr.sum = add i64 %ivar, 4
|
|
%tmp6 = getelementptr inbounds i8* %0, i64 %add.ptr.sum
|
|
%2 = bitcast i8* %tmp6 to float*
|
|
%tmp7 = load float* %2, align 4
|
|
%conv8 = fpext float %tmp7 to double
|
|
%add.ptr.sum36 = add i64 %ivar, 8
|
|
%tmp12 = getelementptr inbounds i8* %0, i64 %add.ptr.sum36
|
|
%arrayidx = bitcast i8* %tmp12 to float*
|
|
%tmp13 = load float* %arrayidx, align 4
|
|
%conv14 = fpext float %tmp13 to double
|
|
%tmp12.sum = add i64 %ivar, 12
|
|
%arrayidx19 = getelementptr inbounds i8* %0, i64 %tmp12.sum
|
|
%3 = bitcast i8* %arrayidx19 to float*
|
|
%tmp20 = load float* %3, align 4
|
|
%conv21 = fpext float %tmp20 to double
|
|
%call = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([33 x i8]* @.str4, i64 0, i64 0), double %conv, double %conv8, double %conv14, double %conv21)
|
|
%ivar23 = load i64* @"OBJC_IVAR_$_A.myZ", align 8
|
|
%add.ptr24 = getelementptr i8* %0, i64 %ivar23
|
|
%4 = bitcast i8* %add.ptr24 to i128*
|
|
%srcval = load i128* %4, align 4
|
|
tail call void @objc_release(i8* %0) nounwind
|
|
%tmp29 = trunc i128 %srcval to i64
|
|
%tmp30 = bitcast i64 %tmp29 to <2 x float>
|
|
%tmp31 = insertvalue {<2 x float>, <2 x float>} undef, <2 x float> %tmp30, 0
|
|
%tmp32 = lshr i128 %srcval, 64
|
|
%tmp33 = trunc i128 %tmp32 to i64
|
|
%tmp34 = bitcast i64 %tmp33 to <2 x float>
|
|
%tmp35 = insertvalue {<2 x float>, <2 x float>} %tmp31, <2 x float> %tmp34, 1
|
|
ret {<2 x float>, <2 x float>} %tmp35
|
|
}
|
|
|
|
; CHECK: @"\01-[Top0 _getX]"
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: }
|
|
|
|
define i32 @"\01-[Top0 _getX]"({}* %self, i8* nocapture %_cmd) nounwind {
|
|
invoke.cont:
|
|
%0 = bitcast {}* %self to i8*
|
|
%1 = tail call i8* @objc_retain(i8* %0) nounwind
|
|
%puts = tail call i32 @puts(i8* getelementptr inbounds ([16 x i8]* @str, i64 0, i64 0))
|
|
tail call void @objc_release(i8* %0) nounwind
|
|
ret i32 0
|
|
}
|
|
|
|
@"\01L_OBJC_METH_VAR_NAME_" = internal global [5 x i8] c"frob\00", section "__TEXT,__cstring,cstring_literals", align 1@"\01L_OBJC_SELECTOR_REFERENCES_" = internal global i8* getelementptr inbounds ([5 x i8]* @"\01L_OBJC_METH_VAR_NAME_", i64 0, i64 0), section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
|
|
@"\01L_OBJC_IMAGE_INFO" = internal constant [2 x i32] [i32 0, i32 16], section "__DATA, __objc_imageinfo, regular, no_dead_strip"
|
|
@llvm.used = appending global [3 x i8*] [i8* getelementptr inbounds ([5 x i8]* @"\01L_OBJC_METH_VAR_NAME_", i32 0, i32 0), i8* bitcast (i8** @"\01L_OBJC_SELECTOR_REFERENCES_" to i8*), i8* bitcast ([2 x i32]* @"\01L_OBJC_IMAGE_INFO" to i8*)], section "llvm.metadata"
|
|
|
|
; A simple loop. Eliminate the retain and release inside of it!
|
|
|
|
; CHECK: define void @loop
|
|
; CHECK: for.body:
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: @objc_msgSend
|
|
; CHECK-NOT: @objc_
|
|
; CHECK: for.end:
|
|
define void @loop(i8* %x, i64 %n) {
|
|
entry:
|
|
%0 = tail call i8* @objc_retain(i8* %x) nounwind
|
|
%cmp9 = icmp sgt i64 %n, 0
|
|
br i1 %cmp9, label %for.body, label %for.end
|
|
|
|
for.body: ; preds = %entry, %for.body
|
|
%i.010 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
|
|
%1 = tail call i8* @objc_retain(i8* %x) nounwind
|
|
%tmp5 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
|
|
%call = tail call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %1, i8* %tmp5)
|
|
tail call void @objc_release(i8* %1) nounwind, !clang.imprecise_release !0
|
|
%inc = add nsw i64 %i.010, 1
|
|
%exitcond = icmp eq i64 %inc, %n
|
|
br i1 %exitcond, label %for.end, label %for.body
|
|
|
|
for.end: ; preds = %for.body, %entry
|
|
tail call void @objc_release(i8* %x) nounwind, !clang.imprecise_release !0
|
|
ret void
|
|
}
|
|
|
|
; ObjCARCOpt can delete the retain,release on self.
|
|
|
|
; CHECK: define void @TextEditTest
|
|
; CHECK-NOT: call i8* @objc_retain(i8* %tmp7)
|
|
; CHECK: }
|
|
|
|
%0 = type { i8* (i8*, %struct._message_ref_t*, ...)*, i8* }
|
|
%1 = type opaque
|
|
%2 = type opaque
|
|
%3 = type opaque
|
|
%4 = type opaque
|
|
%5 = type opaque
|
|
%struct.NSConstantString = type { i32*, i32, i8*, i64 }
|
|
%struct._NSRange = type { i64, i64 }
|
|
%struct.__CFString = type opaque
|
|
%struct.__method_list_t = type { i32, i32, [0 x %struct._objc_method] }
|
|
%struct._class_ro_t = type { i32, i32, i32, i8*, i8*, %struct.__method_list_t*, %struct._objc_protocol_list*, %struct._ivar_list_t*, i8*, %struct._prop_list_t* }
|
|
%struct._class_t = type { %struct._class_t*, %struct._class_t*, %struct._objc_cache*, i8* (i8*, i8*)**, %struct._class_ro_t* }
|
|
%struct._ivar_list_t = type { i32, i32, [0 x %struct._ivar_t] }
|
|
%struct._ivar_t = type { i64*, i8*, i8*, i32, i32 }
|
|
%struct._message_ref_t = type { i8*, i8* }
|
|
%struct._objc_cache = type opaque
|
|
%struct._objc_method = type { i8*, i8*, i8* }
|
|
%struct._objc_protocol_list = type { i64, [0 x %struct._protocol_t*] }
|
|
%struct._prop_list_t = type { i32, i32, [0 x %struct._message_ref_t] }
|
|
%struct._protocol_t = type { i8*, i8*, %struct._objc_protocol_list*, %struct.__method_list_t*, %struct.__method_list_t*, %struct.__method_list_t*, %struct.__method_list_t*, %struct._prop_list_t*, i32, i32 }
|
|
|
|
@"\01L_OBJC_CLASSLIST_REFERENCES_$_17" = external hidden global %struct._class_t*, section "__DATA, __objc_classrefs, regular, no_dead_strip", align 8
|
|
@kUTTypePlainText = external constant %struct.__CFString*
|
|
@"\01L_OBJC_SELECTOR_REFERENCES_19" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
|
|
@"\01L_OBJC_SELECTOR_REFERENCES_21" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
|
|
@"\01L_OBJC_SELECTOR_REFERENCES_23" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
|
|
@"\01L_OBJC_SELECTOR_REFERENCES_25" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
|
|
@"\01L_OBJC_CLASSLIST_REFERENCES_$_26" = external hidden global %struct._class_t*, section "__DATA, __objc_classrefs, regular, no_dead_strip", align 8
|
|
@"\01L_OBJC_SELECTOR_REFERENCES_28" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
|
|
@"\01L_OBJC_CLASSLIST_REFERENCES_$_29" = external hidden global %struct._class_t*, section "__DATA, __objc_classrefs, regular, no_dead_strip", align 8
|
|
@"\01L_OBJC_SELECTOR_REFERENCES_31" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
|
|
@"\01L_OBJC_SELECTOR_REFERENCES_33" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
|
|
@"\01L_OBJC_SELECTOR_REFERENCES_35" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
|
|
@"\01L_OBJC_SELECTOR_REFERENCES_37" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
|
|
@"\01L_OBJC_CLASSLIST_REFERENCES_$_38" = external hidden global %struct._class_t*, section "__DATA, __objc_classrefs, regular, no_dead_strip", align 8
|
|
@"\01L_OBJC_SELECTOR_REFERENCES_40" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
|
|
@"\01L_OBJC_SELECTOR_REFERENCES_42" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
|
|
@_unnamed_cfstring_44 = external hidden constant %struct.NSConstantString, section "__DATA,__cfstring"
|
|
@"\01L_OBJC_SELECTOR_REFERENCES_46" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
|
|
@"\01L_OBJC_SELECTOR_REFERENCES_48" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
|
|
@"\01l_objc_msgSend_fixup_isEqual_" = external hidden global %0, section "__DATA, __objc_msgrefs, coalesced", align 16
|
|
@"\01L_OBJC_CLASSLIST_REFERENCES_$_50" = external hidden global %struct._class_t*, section "__DATA, __objc_classrefs, regular, no_dead_strip", align 8
|
|
@NSCocoaErrorDomain = external constant %1*
|
|
@"\01L_OBJC_CLASSLIST_REFERENCES_$_51" = external hidden global %struct._class_t*, section "__DATA, __objc_classrefs, regular, no_dead_strip", align 8
|
|
@NSFilePathErrorKey = external constant %1*
|
|
@"\01L_OBJC_SELECTOR_REFERENCES_53" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
|
|
@"\01L_OBJC_SELECTOR_REFERENCES_55" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
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@"\01L_OBJC_CLASSLIST_REFERENCES_$_56" = external hidden global %struct._class_t*, section "__DATA, __objc_classrefs, regular, no_dead_strip", align 8
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@"\01L_OBJC_SELECTOR_REFERENCES_58" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
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@"\01L_OBJC_SELECTOR_REFERENCES_60" = external hidden global i8*, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
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declare %1* @truncatedString(%1*, i64)
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define void @TextEditTest(%2* %self, %3* %pboard) {
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entry:
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%err = alloca %4*, align 8
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%tmp7 = bitcast %2* %self to i8*
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%tmp8 = call i8* @objc_retain(i8* %tmp7) nounwind
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store %4* null, %4** %err, align 8
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%tmp1 = load %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_17", align 8
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%tmp2 = load %struct.__CFString** @kUTTypePlainText, align 8
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%tmp3 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_19", align 8
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%tmp4 = bitcast %struct._class_t* %tmp1 to i8*
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%call5 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp4, i8* %tmp3, %struct.__CFString* %tmp2)
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%tmp5 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_21", align 8
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%tmp6 = bitcast %3* %pboard to i8*
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%call76 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp6, i8* %tmp5, i8* %call5)
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%tmp9 = call i8* @objc_retain(i8* %call76) nounwind
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%tobool = icmp eq i8* %tmp9, null
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br i1 %tobool, label %end, label %land.lhs.true
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land.lhs.true: ; preds = %entry
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%tmp11 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_23", align 8
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%call137 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp6, i8* %tmp11, i8* %tmp9)
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%tmp = bitcast i8* %call137 to %1*
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%tmp10 = call i8* @objc_retain(i8* %call137) nounwind
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call void @objc_release(i8* null) nounwind
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%tmp12 = call i8* @objc_retain(i8* %call137) nounwind
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call void @objc_release(i8* null) nounwind
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%tobool16 = icmp eq i8* %call137, null
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br i1 %tobool16, label %end, label %if.then
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if.then: ; preds = %land.lhs.true
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%tmp19 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_25", align 8
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%call21 = call signext i8 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8 (i8*, i8*)*)(i8* %call137, i8* %tmp19)
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%tobool22 = icmp eq i8 %call21, 0
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br i1 %tobool22, label %if.then44, label %land.lhs.true23
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land.lhs.true23: ; preds = %if.then
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%tmp24 = load %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_26", align 8
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%tmp26 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_28", align 8
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%tmp27 = bitcast %struct._class_t* %tmp24 to i8*
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%call2822 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp27, i8* %tmp26, i8* %call137)
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%tmp13 = bitcast i8* %call2822 to %5*
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%tmp14 = call i8* @objc_retain(i8* %call2822) nounwind
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call void @objc_release(i8* null) nounwind
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%tobool30 = icmp eq i8* %call2822, null
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br i1 %tobool30, label %if.then44, label %if.end
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if.end: ; preds = %land.lhs.true23
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%tmp32 = load %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_29", align 8
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%tmp33 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_31", align 8
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%tmp34 = bitcast %struct._class_t* %tmp32 to i8*
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%call35 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp34, i8* %tmp33)
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%tmp37 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_33", align 8
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%call3923 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %call35, i8* %tmp37, i8* %call2822, i32 signext 1, %4** %err)
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%cmp = icmp eq i8* %call3923, null
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br i1 %cmp, label %if.then44, label %end
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if.then44: ; preds = %if.end, %land.lhs.true23, %if.then
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%url.025 = phi %5* [ %tmp13, %if.end ], [ %tmp13, %land.lhs.true23 ], [ null, %if.then ]
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%tmp49 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_35", align 8
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%call51 = call %struct._NSRange bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to %struct._NSRange (i8*, i8*, i64, i64)*)(i8* %call137, i8* %tmp49, i64 0, i64 0)
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%call513 = extractvalue %struct._NSRange %call51, 0
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%call514 = extractvalue %struct._NSRange %call51, 1
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%tmp52 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_37", align 8
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%call548 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %call137, i8* %tmp52, i64 %call513, i64 %call514)
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%tmp55 = load %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_38", align 8
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%tmp56 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_40", align 8
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%tmp57 = bitcast %struct._class_t* %tmp55 to i8*
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%call58 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp57, i8* %tmp56)
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%tmp59 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_42", align 8
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%call6110 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %call548, i8* %tmp59, i8* %call58)
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%tmp15 = call i8* @objc_retain(i8* %call6110) nounwind
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call void @objc_release(i8* %call137) nounwind
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%tmp64 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_46", align 8
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%call66 = call signext i8 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8 (i8*, i8*, %1*)*)(i8* %call6110, i8* %tmp64, %1* bitcast (%struct.NSConstantString* @_unnamed_cfstring_44 to %1*))
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%tobool67 = icmp eq i8 %call66, 0
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br i1 %tobool67, label %if.end74, label %if.then68
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if.then68: ; preds = %if.then44
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%tmp70 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_48", align 8
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%call7220 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %call6110, i8* %tmp70)
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%tmp16 = call i8* @objc_retain(i8* %call7220) nounwind
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call void @objc_release(i8* %call6110) nounwind
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br label %if.end74
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if.end74: ; preds = %if.then68, %if.then44
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%filename.0.in = phi i8* [ %call7220, %if.then68 ], [ %call6110, %if.then44 ]
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%filename.0 = bitcast i8* %filename.0.in to %1*
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%tmp17 = load i8** bitcast (%0* @"\01l_objc_msgSend_fixup_isEqual_" to i8**), align 16
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%tmp18 = bitcast i8* %tmp17 to i8 (i8*, %struct._message_ref_t*, i8*, ...)*
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%call78 = call signext i8 (i8*, %struct._message_ref_t*, i8*, ...)* %tmp18(i8* %call137, %struct._message_ref_t* bitcast (%0* @"\01l_objc_msgSend_fixup_isEqual_" to %struct._message_ref_t*), i8* %filename.0.in)
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%tobool79 = icmp eq i8 %call78, 0
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br i1 %tobool79, label %land.lhs.true80, label %if.then109
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land.lhs.true80: ; preds = %if.end74
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%tmp82 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_25", align 8
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%call84 = call signext i8 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8 (i8*, i8*)*)(i8* %filename.0.in, i8* %tmp82)
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%tobool86 = icmp eq i8 %call84, 0
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br i1 %tobool86, label %if.then109, label %if.end106
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if.end106: ; preds = %land.lhs.true80
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%tmp88 = load %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_26", align 8
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%tmp90 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_28", align 8
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%tmp91 = bitcast %struct._class_t* %tmp88 to i8*
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%call9218 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp91, i8* %tmp90, i8* %filename.0.in)
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%tmp20 = bitcast i8* %call9218 to %5*
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%tmp21 = call i8* @objc_retain(i8* %call9218) nounwind
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%tmp22 = bitcast %5* %url.025 to i8*
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call void @objc_release(i8* %tmp22) nounwind
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%tmp94 = load %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_29", align 8
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%tmp95 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_31", align 8
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%tmp96 = bitcast %struct._class_t* %tmp94 to i8*
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%call97 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp96, i8* %tmp95)
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%tmp99 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_33", align 8
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%call10119 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %call97, i8* %tmp99, i8* %call9218, i32 signext 1, %4** %err)
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%phitmp = icmp eq i8* %call10119, null
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br i1 %phitmp, label %if.then109, label %end
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if.then109: ; preds = %if.end106, %land.lhs.true80, %if.end74
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%url.129 = phi %5* [ %tmp20, %if.end106 ], [ %url.025, %if.end74 ], [ %url.025, %land.lhs.true80 ]
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%tmp110 = load %4** %err, align 8
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%tobool111 = icmp eq %4* %tmp110, null
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br i1 %tobool111, label %if.then112, label %if.end125
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if.then112: ; preds = %if.then109
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%tmp113 = load %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_50", align 8
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%tmp114 = load %1** @NSCocoaErrorDomain, align 8
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%tmp115 = load %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_51", align 8
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%call117 = call %1* @truncatedString(%1* %filename.0, i64 1034)
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%tmp118 = load %1** @NSFilePathErrorKey, align 8
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%tmp119 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_53", align 8
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%tmp120 = bitcast %struct._class_t* %tmp115 to i8*
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%call12113 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp120, i8* %tmp119, %1* %call117, %1* %tmp118, i8* null)
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%tmp122 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_55", align 8
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%tmp123 = bitcast %struct._class_t* %tmp113 to i8*
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%call12414 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp123, i8* %tmp122, %1* %tmp114, i64 258, i8* %call12113)
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%tmp23 = call i8* @objc_retain(i8* %call12414) nounwind
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%tmp25 = call i8* @objc_autorelease(i8* %tmp23) nounwind
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%tmp28 = bitcast i8* %tmp25 to %4*
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store %4* %tmp28, %4** %err, align 8
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br label %if.end125
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if.end125: ; preds = %if.then112, %if.then109
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%tmp127 = phi %4* [ %tmp110, %if.then109 ], [ %tmp28, %if.then112 ]
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%tmp126 = load %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_56", align 8
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%tmp128 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_58", align 8
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%tmp129 = bitcast %struct._class_t* %tmp126 to i8*
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%call13015 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %tmp129, i8* %tmp128, %4* %tmp127)
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%tmp131 = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_60", align 8
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%call13317 = call i8* (i8*, i8*, ...)* @objc_msgSend(i8* %call13015, i8* %tmp131)
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br label %end
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end: ; preds = %if.end125, %if.end106, %if.end, %land.lhs.true, %entry
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%filename.2 = phi %1* [ %filename.0, %if.end106 ], [ %filename.0, %if.end125 ], [ %tmp, %land.lhs.true ], [ null, %entry ], [ %tmp, %if.end ]
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%origFilename.0 = phi %1* [ %tmp, %if.end106 ], [ %tmp, %if.end125 ], [ %tmp, %land.lhs.true ], [ null, %entry ], [ %tmp, %if.end ]
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%url.2 = phi %5* [ %tmp20, %if.end106 ], [ %url.129, %if.end125 ], [ null, %land.lhs.true ], [ null, %entry ], [ %tmp13, %if.end ]
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call void @objc_release(i8* %tmp9) nounwind, !clang.imprecise_release !0
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%tmp29 = bitcast %5* %url.2 to i8*
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call void @objc_release(i8* %tmp29) nounwind, !clang.imprecise_release !0
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%tmp30 = bitcast %1* %origFilename.0 to i8*
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call void @objc_release(i8* %tmp30) nounwind, !clang.imprecise_release !0
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%tmp31 = bitcast %1* %filename.2 to i8*
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call void @objc_release(i8* %tmp31) nounwind, !clang.imprecise_release !0
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call void @objc_release(i8* %tmp7) nounwind, !clang.imprecise_release !0
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ret void
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}
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!0 = metadata !{}
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declare i32 @__gxx_personality_v0(...)
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