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| author | Cameron Zwarich <zwarich@apple.com> | 2011-03-16 20:15:44 +0000 |
|---|---|---|
| committer | Cameron Zwarich <zwarich@apple.com> | 2011-03-16 20:15:44 +0000 |
| commit | 0a00615b340b47c6af72998cca35b69fb8e5aa5f (patch) | |
| tree | e09f7eab12b98406636f7b7ffd9478a07614428b | |
| parent | bb057453db627a8614091af7eff2de971644255a (diff) | |
| download | external_llvm-0a00615b340b47c6af72998cca35b69fb8e5aa5f.zip external_llvm-0a00615b340b47c6af72998cca35b69fb8e5aa5f.tar.gz external_llvm-0a00615b340b47c6af72998cca35b69fb8e5aa5f.tar.bz2 | |
Add a test for i1 zeroext arguments on x86-64. We currently generate code that
conforms to the ABI, but DAGCombine could in theory recognize the sequence of
zext asserts and truncates and generate incorrect code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127754 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | test/CodeGen/X86/bool-args-zext.ll | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/test/CodeGen/X86/bool-args-zext.ll b/test/CodeGen/X86/bool-args-zext.ll new file mode 100644 index 0000000..67168d4 --- /dev/null +++ b/test/CodeGen/X86/bool-args-zext.ll @@ -0,0 +1,23 @@ +; RUN: llc < %s -march=x86-64 | FileCheck %s + +; CHECK: @bar1 +; CHECK: movzbl +; CHECK: callq +define void @bar1(i1 zeroext %v1) nounwind ssp { +entry: + %conv = zext i1 %v1 to i32 + %call = tail call i32 (...)* @foo(i32 %conv) nounwind + ret void +} + +; CHECK: @bar2 +; CHECK-NOT: movzbl +; CHECK: callq +define void @bar2(i8 zeroext %v1) nounwind ssp { +entry: + %conv = zext i8 %v1 to i32 + %call = tail call i32 (...)* @foo(i32 %conv) nounwind + ret void +} + +declare i32 @foo(...) |