From 46ebe53eadbc8a0aaf83315179ea1712f5674309 Mon Sep 17 00:00:00 2001 From: Michael Gottesman Date: Wed, 27 Mar 2013 00:09:58 +0000 Subject: [PATCH] Added back in the test for arc-annotations. The test was removed since I had not turned off the test during release builds. This fails since ARC annotations support is conditionally compiled out during release builds. I added the proper requires header to assuage this issue. llvm-svn: 178101 --- .../Transforms/ObjCARC/arc-annotations.ll | 307 ++++++++++++++++++ 1 file changed, 307 insertions(+) create mode 100644 llvm/test/Transforms/ObjCARC/arc-annotations.ll diff --git a/llvm/test/Transforms/ObjCARC/arc-annotations.ll b/llvm/test/Transforms/ObjCARC/arc-annotations.ll new file mode 100644 index 000000000000..4c56b4a3def9 --- /dev/null +++ b/llvm/test/Transforms/ObjCARC/arc-annotations.ll @@ -0,0 +1,307 @@ +; This file consists of various tests which ensure that the objc-arc-annotations +; are working correctly. In the future, I will use this in other lit tests to +; check the data flow analysis of ARC. + +; REQUIRES: asserts +; RUN: opt -S -objc-arc -enable-objc-arc-annotations < %s | FileCheck %s + +declare i8* @objc_retain(i8*) +declare i8* @objc_retainAutoreleasedReturnValue(i8*) +declare void @objc_release(i8*) +declare i8* @objc_autorelease(i8*) +declare i8* @objc_autoreleaseReturnValue(i8*) +declare void @objc_autoreleasePoolPop(i8*) +declare i8* @objc_autoreleasePoolPush() +declare i8* @objc_retainBlock(i8*) + +declare i8* @objc_retainedObject(i8*) +declare i8* @objc_unretainedObject(i8*) +declare i8* @objc_unretainedPointer(i8*) + +declare void @use_pointer(i8*) +declare void @callee() +declare void @callee_fnptr(void ()*) +declare void @invokee() +declare i8* @returner() + +; Simple retain+release pair deletion, with some intervening control +; flow and harmless instructions. + +; CHECK: define void @test0( +; CHECK: entry: +; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_None) +; CHECK: %0 = tail call i8* @objc_retain(i8* %a) #0, !llvm.arc.annotation.bottomup !0, !llvm.arc.annotation.topdown !1 +; CHECK: call void @llvm.arc.annotation.bottomup.bbend(i8** @x, i8** @S_Use) +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_Retain) +; CHECK: t: +; CHECK: call void @llvm.arc.annotation.topdown.bbstart(i8** @x, i8** @S_Retain) +; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_Use) +; CHECK: store float 2.000000e+00, float* %b, !llvm.arc.annotation.bottomup !2 +; CHECK: call void @llvm.arc.annotation.bottomup.bbend(i8** @x, i8** @S_Release) +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_Retain) +; CHECK: f: +; CHECK: call void @llvm.arc.annotation.topdown.bbstart(i8** @x, i8** @S_Retain) +; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_Use) +; CHECK: store i32 7, i32* %x, !llvm.arc.annotation.bottomup !2 +; CHECK: call void @llvm.arc.annotation.bottomup.bbend(i8** @x, i8** @S_Release) +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_Retain) +; CHECK: return: +; CHECK: call void @llvm.arc.annotation.topdown.bbstart(i8** @x, i8** @S_Retain) +; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_Release) +; CHECK: call void @objc_release(i8* %c) #0, !llvm.arc.annotation.bottomup !3, !llvm.arc.annotation.topdown !4 +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_None) +; CHECK: } +define void @test0(i32* %x, i1 %p) nounwind { +entry: + %a = bitcast i32* %x to i8* + %0 = call i8* @objc_retain(i8* %a) nounwind + br i1 %p, label %t, label %f + +t: + store i8 3, i8* %a + %b = bitcast i32* %x to float* + store float 2.0, float* %b + br label %return + +f: + store i32 7, i32* %x + br label %return + +return: + %c = bitcast i32* %x to i8* + call void @objc_release(i8* %c) nounwind + ret void +} + +; Like test0 but the release isn't always executed when the retain is, +; so the optimization is not safe. + +; TODO: Make the objc_release's argument be %0. + +; CHECK: define void @test1( +; CHECK: entry: +; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_None) +; CHECK: %0 = tail call i8* @objc_retain(i8* %a) #0, !llvm.arc.annotation.bottomup !5, !llvm.arc.annotation.topdown !6 +; CHECK: call void @llvm.arc.annotation.bottomup.bbend(i8** @x, i8** @S_None) +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_Retain) +; CHECK: t: +; CHECK: call void @llvm.arc.annotation.topdown.bbstart(i8** @x, i8** @S_Retain) +; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_Use) +; CHECK: store float 2.000000e+00, float* %b, !llvm.arc.annotation.bottomup !7 +; CHECK: call void @llvm.arc.annotation.bottomup.bbend(i8** @x, i8** @S_Release) +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_Retain) +; CHECK: f: +; CHECK: call void @llvm.arc.annotation.topdown.bbstart(i8** @x, i8** @S_Retain) +; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_None) +; CHECK: call void @callee(), !llvm.arc.annotation.topdown !8 +; CHECK: call void @llvm.arc.annotation.bottomup.bbend(i8** @x, i8** @S_None) +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_CanRelease) +; CHECK: return: +; CHECK: call void @llvm.arc.annotation.topdown.bbstart(i8** @x, i8** @S_None) +; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_Release) +; CHECK: call void @objc_release(i8* %c) #0, !llvm.arc.annotation.bottomup !9 +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_None) +; CHECK: alt_return: +; CHECK: call void @llvm.arc.annotation.topdown.bbstart(i8** @x, i8** @S_None) +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_None) +; CHECK: } +define void @test1(i32* %x, i1 %p, i1 %q) nounwind { +entry: + %a = bitcast i32* %x to i8* + %0 = call i8* @objc_retain(i8* %a) nounwind + br i1 %p, label %t, label %f + +t: + store i8 3, i8* %a + %b = bitcast i32* %x to float* + store float 2.0, float* %b + br label %return + +f: + store i32 7, i32* %x + call void @callee() + br i1 %q, label %return, label %alt_return + +return: + %c = bitcast i32* %x to i8* + call void @objc_release(i8* %c) nounwind + ret void + +alt_return: + ret void +} + +; Don't do partial elimination into two different CFG diamonds. + +; CHECK: define void @test1b( +; CHECK: entry: +; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_None) +; CHECK: %0 = tail call i8* @objc_retain(i8* %x) #0, !llvm.arc.annotation.bottomup !10, !llvm.arc.annotation.topdown !11 +; CHECK: call void @llvm.arc.annotation.bottomup.bbend(i8** @x, i8** @S_None) +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_Retain) +; CHECK: if.then: +; CHECK: call void @llvm.arc.annotation.topdown.bbstart(i8** @x, i8** @S_Retain) +; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_CanRelease) +; CHECK: tail call void @callee(), !llvm.arc.annotation.bottomup !12, !llvm.arc.annotation.topdown !13 +; CHECK: call void @llvm.arc.annotation.bottomup.bbend(i8** @x, i8** @S_Use) +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_CanRelease) +; CHECK: if.end: +; CHECK: call void @llvm.arc.annotation.topdown.bbstart(i8** @x, i8** @S_CanRelease) +; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_Use) +; CHECK: call void @llvm.arc.annotation.bottomup.bbend(i8** @x, i8** @S_Use) +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_CanRelease) +; CHECK: if.then3: +; CHECK: call void @llvm.arc.annotation.topdown.bbstart(i8** @x, i8** @S_CanRelease) +; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_Use) +; CHECK: tail call void @use_pointer(i8* %x), !llvm.arc.annotation.bottomup !14, !llvm.arc.annotation.topdown !15 +; CHECK: call void @llvm.arc.annotation.bottomup.bbend(i8** @x, i8** @S_MovableRelease) +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_Use) +; CHECK: if.end5: +; CHECK: call void @llvm.arc.annotation.topdown.bbstart(i8** @x, i8** @S_None) +; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_MovableRelease) +; CHECK: tail call void @objc_release(i8* %x) #0, !clang.imprecise_release !16, !llvm.arc.annotation.bottomup !17 +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_None) +; CHECK: } +define void @test1b(i8* %x, i1 %p, i1 %q) { +entry: + tail call i8* @objc_retain(i8* %x) nounwind + br i1 %p, label %if.then, label %if.end + +if.then: ; preds = %entry + tail call void @callee() + br label %if.end + +if.end: ; preds = %if.then, %entry + br i1 %q, label %if.then3, label %if.end5 + +if.then3: ; preds = %if.end + tail call void @use_pointer(i8* %x) + br label %if.end5 + +if.end5: ; preds = %if.then3, %if.end + tail call void @objc_release(i8* %x) nounwind, !clang.imprecise_release !0 + ret void +} + +; Like test0 but the pointer is passed to an intervening call, +; so the optimization is not safe. + +; CHECK: define void @test2( +; CHECK: entry: +; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_None) +; CHECK: %e = tail call i8* @objc_retain(i8* %a) #0, !llvm.arc.annotation.bottomup !18, !llvm.arc.annotation.topdown !19 +; CHECK: call void @llvm.arc.annotation.bottomup.bbend(i8** @x, i8** @S_CanRelease) +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_Retain) +; CHECK: t: +; CHECK: call void @llvm.arc.annotation.topdown.bbstart(i8** @x, i8** @S_Retain) +; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_Use) +; CHECK: store float 2.000000e+00, float* %b, !llvm.arc.annotation.bottomup !20 +; CHECK: call void @llvm.arc.annotation.bottomup.bbend(i8** @x, i8** @S_Release) +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_Retain) +; CHECK: f: +; CHECK: call void @llvm.arc.annotation.topdown.bbstart(i8** @x, i8** @S_Retain) +; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_CanRelease) +; CHECK: call void @use_pointer(i8* %e), !llvm.arc.annotation.bottomup !21, !llvm.arc.annotation.topdown !22 +; CHECK: store float 3.000000e+00, float* %d, !llvm.arc.annotation.bottomup !20, !llvm.arc.annotation.topdown !23 +; CHECK: call void @llvm.arc.annotation.bottomup.bbend(i8** @x, i8** @S_Release) +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_Use) +; CHECK: return: +; CHECK: call void @llvm.arc.annotation.topdown.bbstart(i8** @x, i8** @S_Use) +; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_Release) +; CHECK: call void @objc_release(i8* %c) #0, !llvm.arc.annotation.bottomup !24, !llvm.arc.annotation.topdown !25 +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_None) +; CHECK: } +define void @test2(i32* %x, i1 %p) nounwind { +entry: + %a = bitcast i32* %x to i8* + %e = call i8* @objc_retain(i8* %a) nounwind + br i1 %p, label %t, label %f + +t: + store i8 3, i8* %a + %b = bitcast i32* %x to float* + store float 2.0, float* %b + br label %return + +f: + store i32 7, i32* %x + call void @use_pointer(i8* %e) + %d = bitcast i32* %x to float* + store float 3.0, float* %d + br label %return + +return: + %c = bitcast i32* %x to i8* + call void @objc_release(i8* %c) nounwind + ret void +} + +; Like test0 but the release is in a loop, +; so the optimization is not safe. + +; TODO: For now, assume this can't happen. + +; CHECK: define void @test3( +; CHECK: entry: +; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_None) +; CHECK: tail call i8* @objc_retain(i8* %a) #0, !llvm.arc.annotation.bottomup !26, !llvm.arc.annotation.topdown !27 +; CHECK: call void @llvm.arc.annotation.bottomup.bbend(i8** @x, i8** @S_Release) +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_Retain) +; CHECK: loop: +; CHECK: call void @llvm.arc.annotation.topdown.bbstart(i8** @x, i8** @S_Retain) +; CHECK: call void @llvm.arc.annotation.bottomup.bbstart(i8** @x, i8** @S_Release) +; CHECK: call void @objc_release(i8* %c) #0, !llvm.arc.annotation.bottomup !28, !llvm.arc.annotation.topdown !29 +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_None) +; CHECK: return: +; CHECK: call void @llvm.arc.annotation.topdown.bbstart(i8** @x, i8** @S_None) +; CHECK: call void @llvm.arc.annotation.topdown.bbend(i8** @x, i8** @S_None) +; CHECK: } +define void @test3(i32* %x, i1* %q) nounwind { +entry: + %a = bitcast i32* %x to i8* + %0 = call i8* @objc_retain(i8* %a) nounwind + br label %loop + +loop: + %c = bitcast i32* %x to i8* + call void @objc_release(i8* %c) nounwind + %j = load volatile i1* %q + br i1 %j, label %loop, label %return + +return: + ret void +} + +!0 = metadata !{} + +; CHECK: !0 = metadata !{metadata !"(test0,%x)", metadata !"S_Use", metadata !"S_None"} +; CHECK: !1 = metadata !{metadata !"(test0,%x)", metadata !"S_None", metadata !"S_Retain"} +; CHECK: !2 = metadata !{metadata !"(test0,%x)", metadata !"S_Release", metadata !"S_Use"} +; CHECK: !3 = metadata !{metadata !"(test0,%x)", metadata !"S_None", metadata !"S_Release"} +; CHECK: !4 = metadata !{metadata !"(test0,%x)", metadata !"S_Retain", metadata !"S_None"} +; CHECK: !5 = metadata !{metadata !"(test1,%x)", metadata !"S_None", metadata !"S_None"} +; CHECK: !6 = metadata !{metadata !"(test1,%x)", metadata !"S_None", metadata !"S_Retain"} +; CHECK: !7 = metadata !{metadata !"(test1,%x)", metadata !"S_Release", metadata !"S_Use"} +; CHECK: !8 = metadata !{metadata !"(test1,%x)", metadata !"S_Retain", metadata !"S_CanRelease"} +; CHECK: !9 = metadata !{metadata !"(test1,%x)", metadata !"S_None", metadata !"S_Release"} +; CHECK: !10 = metadata !{metadata !"(test1b,%x)", metadata !"S_None", metadata !"S_None"} +; CHECK: !11 = metadata !{metadata !"(test1b,%x)", metadata !"S_None", metadata !"S_Retain"} +; CHECK: !12 = metadata !{metadata !"(test1b,%x)", metadata !"S_Use", metadata !"S_CanRelease"} +; CHECK: !13 = metadata !{metadata !"(test1b,%x)", metadata !"S_Retain", metadata !"S_CanRelease"} +; CHECK: !14 = metadata !{metadata !"(test1b,%x)", metadata !"S_MovableRelease", metadata !"S_Use"} +; CHECK: !15 = metadata !{metadata !"(test1b,%x)", metadata !"S_CanRelease", metadata !"S_Use"} +; CHECK: !16 = metadata !{} +; CHECK: !17 = metadata !{metadata !"(test1b,%x)", metadata !"S_None", metadata !"S_MovableRelease"} +; CHECK: !18 = metadata !{metadata !"(test2,%x)", metadata !"S_CanRelease", metadata !"S_None"} +; CHECK: !19 = metadata !{metadata !"(test2,%x)", metadata !"S_None", metadata !"S_Retain"} +; CHECK: !20 = metadata !{metadata !"(test2,%x)", metadata !"S_Release", metadata !"S_Use"} +; CHECK: !21 = metadata !{metadata !"(test2,%x)", metadata !"S_Use", metadata !"S_CanRelease"} +; CHECK: !22 = metadata !{metadata !"(test2,%x)", metadata !"S_Retain", metadata !"S_CanRelease"} +; CHECK: !23 = metadata !{metadata !"(test2,%x)", metadata !"S_CanRelease", metadata !"S_Use"} +; CHECK: !24 = metadata !{metadata !"(test2,%x)", metadata !"S_None", metadata !"S_Release"} +; CHECK: !25 = metadata !{metadata !"(test2,%x)", metadata !"S_Use", metadata !"S_None"} +; CHECK: !26 = metadata !{metadata !"(test3,%x)", metadata !"S_Release", metadata !"S_None"} +; CHECK: !27 = metadata !{metadata !"(test3,%x)", metadata !"S_None", metadata !"S_Retain"} +; CHECK: !28 = metadata !{metadata !"(test3,%x)", metadata !"S_None", metadata !"S_Release"} +; CHECK: !29 = metadata !{metadata !"(test3,%x)", metadata !"S_Retain", metadata !"S_None"} +