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| author | Stephen Hines <srhines@google.com> | 2015-03-23 12:10:34 -0700 |
|---|---|---|
| committer | Stephen Hines <srhines@google.com> | 2015-03-23 12:10:34 -0700 |
| commit | ebe69fe11e48d322045d5949c83283927a0d790b (patch) | |
| tree | c92f1907a6b8006628a4b01615f38264d29834ea /test/CodeGen/X86/frameallocate.ll | |
| parent | b7d2e72b02a4cb8034f32f8247a2558d2434e121 (diff) | |
| download | external_llvm-ebe69fe11e48d322045d5949c83283927a0d790b.zip external_llvm-ebe69fe11e48d322045d5949c83283927a0d790b.tar.gz external_llvm-ebe69fe11e48d322045d5949c83283927a0d790b.tar.bz2 | |
Update aosp/master LLVM for rebase to r230699.
Change-Id: I2b5be30509658cb8266be782de0ab24f9099f9b9
Diffstat (limited to 'test/CodeGen/X86/frameallocate.ll')
| -rw-r--r-- | test/CodeGen/X86/frameallocate.ll | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/test/CodeGen/X86/frameallocate.ll b/test/CodeGen/X86/frameallocate.ll new file mode 100644 index 0000000..7a2f9e3 --- /dev/null +++ b/test/CodeGen/X86/frameallocate.ll @@ -0,0 +1,43 @@ +; RUN: llc -mtriple=x86_64-windows-msvc < %s | FileCheck %s + +declare i8* @llvm.frameallocate(i32) +declare i8* @llvm.frameaddress(i32) +declare i8* @llvm.framerecover(i8*, i8*) +declare i32 @printf(i8*, ...) + +@str = internal constant [10 x i8] c"asdf: %d\0A\00" + +define void @print_framealloc_from_fp(i8* %fp) { + %alloc = call i8* @llvm.framerecover(i8* bitcast (void(i32*, i32*)* @alloc_func to i8*), i8* %fp) + %alloc_i32 = bitcast i8* %alloc to i32* + %r = load i32* %alloc_i32 + call i32 (i8*, ...)* @printf(i8* getelementptr ([10 x i8]* @str, i32 0, i32 0), i32 %r) + ret void +} + +; CHECK-LABEL: print_framealloc_from_fp: +; CHECK: movabsq $.Lframeallocation_alloc_func, %[[offs:[a-z]+]] +; CHECK: movl (%rcx,%[[offs]]), %edx +; CHECK: leaq {{.*}}(%rip), %rcx +; CHECK: callq printf +; CHECK: retq + +define void @alloc_func(i32* %s, i32* %d) { + %alloc = call i8* @llvm.frameallocate(i32 16) + %alloc_i32 = bitcast i8* %alloc to i32* + store i32 42, i32* %alloc_i32 + %fp = call i8* @llvm.frameaddress(i32 0) + call void @print_framealloc_from_fp(i8* %fp) + ret void +} + +; CHECK-LABEL: alloc_func: +; CHECK: subq $48, %rsp +; CHECK: .seh_stackalloc 48 +; CHECK: leaq 48(%rsp), %rbp +; CHECK: .seh_setframe 5, 48 +; CHECK: .Lframeallocation_alloc_func = -[[offs:[0-9]+]] +; CHECK: movl $42, -[[offs]](%rbp) +; CHECK: leaq -48(%rbp), %rcx +; CHECK: callq print_framealloc_from_fp +; CHECK: retq |