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| author | Matthias Braun <matze@braunis.de> | 2016-06-28 20:31:56 +0000 |
|---|---|---|
| committer | Matthias Braun <matze@braunis.de> | 2016-06-28 20:31:56 +0000 |
| commit | 0b9a07883d38d2abdb07f3b3359d9954094717f1 (patch) | |
| tree | 2bf44b93089918f46d123b9e8935941411e48d41 /llvm/test/CodeGen/X86 | |
| parent | 91c66275e971abe7cd6f86d31d572c009198d7ed (diff) | |
| download | bcm5719-llvm-0b9a07883d38d2abdb07f3b3359d9954094717f1.tar.gz bcm5719-llvm-0b9a07883d38d2abdb07f3b3359d9954094717f1.zip | |
X86FrameLowering: Check subregs when deciding prolog kill flags
llvm-svn: 274057
Diffstat (limited to 'llvm/test/CodeGen/X86')
| -rw-r--r-- | llvm/test/CodeGen/X86/no-prolog-kill.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/no-prolog-kill.ll b/llvm/test/CodeGen/X86/no-prolog-kill.ll new file mode 100644 index 00000000000..f625f315bb7 --- /dev/null +++ b/llvm/test/CodeGen/X86/no-prolog-kill.ll @@ -0,0 +1,21 @@ +; RUN: llc -verify-machineinstrs -o - %s | FileCheck %s +target triple = "x86_64--" + +; This function gets a AL live-in and at same time saves+restores RAX. We must +; not add a kill flag to the "PUSHQ %rax" or the machine verifier will complain. +; CHECK-LABEL: test: +; CHECK: pushq %rax +; CHECK: testb %al, %al +; CHECK: je .LBB +define void @test(i64 %a, i8* %b, ...) { +entry: + %bar = alloca i8 + call void @llvm.va_start(i8* %bar) + call void @llvm.eh.unwind.init() + call void @llvm.eh.return.i64(i64 %a, i8* %b) + unreachable +} + +declare void @llvm.eh.return.i64(i64, i8*) +declare void @llvm.eh.unwind.init() +declare void @llvm.va_start(i8*) |
