forked from OSchip/llvm-project
121 lines
3.6 KiB
LLVM
121 lines
3.6 KiB
LLVM
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; RUN: opt < %s -inline -S | FileCheck %s
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; RUN: opt < %s -passes='cgscc(inline,function(instcombine))' -S | FileCheck %s
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declare void @ext_method(i8*, i32)
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declare signext i16 @vararg_fn(...) #0
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declare "cc 9" void @vararg_fn_cc9(i8* %p, ...)
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define linkonce_odr void @thunk(i8* %this, ...) {
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%this_adj = getelementptr i8, i8* %this, i32 4
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musttail call void (i8*, ...) bitcast (void (i8*, i32)* @ext_method to void (i8*, ...)*)(i8* nonnull %this_adj, ...)
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ret void
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}
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define void @thunk_caller(i8* %p) {
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call void (i8*, ...) @thunk(i8* %p, i32 42)
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ret void
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}
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; CHECK-LABEL: define void @thunk_caller(i8* %p)
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; CHECK: call void (i8*, ...) bitcast (void (i8*, i32)* @ext_method to void (i8*, ...)*)(i8* nonnull %this_adj.i, i32 42)
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define signext i16 @test_callee_2(...) {
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%res = musttail call signext i16 (...) @vararg_fn(...) #0
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ret i16 %res
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}
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define void @test_caller_2(i8* %p, i8* %q, i16 %r) {
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call signext i16 (...) @test_callee_2(i8* %p, i8* byval %q, i16 signext %r)
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ret void
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}
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; CHECK-LABEL: define void @test_caller_2
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; CHECK: call signext i16 (...) @vararg_fn(i8* %p, i8* byval %q, i16 signext %r) [[FN_ATTRS:#[0-9]+]]
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define void @test_callee_3(i8* %p, ...) {
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call signext i16 (...) @vararg_fn()
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ret void
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}
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define void @test_caller_3(i8* %p, i8* %q) {
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call void (i8*, ...) @test_callee_3(i8* nonnull %p, i8* %q)
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ret void
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}
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; CHECK-LABEL: define void @test_caller_3
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; CHECK: call signext i16 (...) @vararg_fn()
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define void @test_preserve_cc(i8* %p, ...) {
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musttail call "cc 9" void (i8*, ...) @vararg_fn_cc9(i8* %p, ...)
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ret void
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}
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define void @test_caller_preserve_cc(i8* %p, i8* %q) {
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call void (i8*, ...) @test_preserve_cc(i8* %p, i8* %q)
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ret void
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}
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; CHECK-LABEL: define void @test_caller_preserve_cc
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; CHECK: call "cc 9" void (i8*, ...) @vararg_fn_cc9(i8* %p, i8* %q)
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define internal i32 @varg_accessed(...) {
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entry:
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%vargs = alloca i8*, align 8
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%vargs.ptr = bitcast i8** %vargs to i8*
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call void @llvm.va_start(i8* %vargs.ptr)
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%va1 = va_arg i8** %vargs, i32
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call void @llvm.va_end(i8* %vargs.ptr)
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ret i32 %va1
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}
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define internal i32 @varg_accessed_alwaysinline(...) alwaysinline {
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entry:
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%vargs = alloca i8*, align 8
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%vargs.ptr = bitcast i8** %vargs to i8*
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call void @llvm.va_start(i8* %vargs.ptr)
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%va1 = va_arg i8** %vargs, i32
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call void @llvm.va_end(i8* %vargs.ptr)
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ret i32 %va1
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}
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define i32 @call_vargs() {
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%res1 = call i32 (...) @varg_accessed(i32 10)
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%res2 = call i32 (...) @varg_accessed_alwaysinline(i32 15)
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%res = add i32 %res1, %res2
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ret i32 %res
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}
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; CHECK-LABEL: @call_vargs
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; CHECK: %res1 = call i32 (...) @varg_accessed(i32 10)
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; CHECK-NEXT: %res2 = call i32 (...) @varg_accessed_alwaysinline(i32 15)
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define void @caller_with_vastart(i8* noalias nocapture readnone %args, ...) {
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entry:
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%ap = alloca i8*, align 4
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%ap.ptr = bitcast i8** %ap to i8*
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%ap2 = alloca i8*, align 4
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%ap2.ptr = bitcast i8** %ap to i8*
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call void @llvm.va_start(i8* nonnull %ap.ptr)
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call fastcc void @callee_with_vaend(i8* nonnull %ap.ptr)
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call void @llvm.va_start(i8* nonnull %ap2.ptr)
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call fastcc void @callee_with_vaend_alwaysinline(i8* nonnull %ap2.ptr)
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ret void
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}
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define internal fastcc void @callee_with_vaend_alwaysinline(i8* %a) alwaysinline {
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entry:
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tail call void @llvm.va_end(i8* %a)
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ret void
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}
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define internal fastcc void @callee_with_vaend(i8* %a) {
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entry:
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tail call void @llvm.va_end(i8* %a)
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ret void
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}
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; CHECK-LABEL: @caller_with_vastart
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; CHECK-NOT: @callee_with_vaend
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; CHECK-NOT: @callee_with_vaend_alwaysinline
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declare void @llvm.va_start(i8*)
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declare void @llvm.va_end(i8*)
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; CHECK: attributes [[FN_ATTRS]] = { "foo"="bar" }
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attributes #0 = { "foo"="bar" }
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