diff options
Diffstat (limited to 'test/CodeGen/X86/clzero.ll')
| -rw-r--r-- | test/CodeGen/X86/clzero.ll | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/test/CodeGen/X86/clzero.ll b/test/CodeGen/X86/clzero.ll new file mode 100644 index 0000000000000..f15d4deedeff6 --- /dev/null +++ b/test/CodeGen/X86/clzero.ll @@ -0,0 +1,23 @@ +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc < %s -mtriple=x86_64-linux -mattr=+clzero | FileCheck %s --check-prefix=X64 +; RUN: llc < %s -mtriple=i386-pc-linux -mattr=+clzero | FileCheck %s --check-prefix=X32 + +define void @foo(i8* %p) #0 { +; X64-LABEL: foo: +; X64: # BB#0: # %entry +; X64-NEXT: leaq (%rdi), %rax +; X64-NEXT: clzero +; X64-NEXT: retq +; +; X32-LABEL: foo: +; X32: # BB#0: # %entry +; X32-NEXT: movl {{[0-9]+}}(%esp), %eax +; X32-NEXT: leal (%eax), %eax +; X32-NEXT: clzero +; X32-NEXT: retl +entry: + tail call void @llvm.x86.clzero(i8* %p) #1 + ret void +} + +declare void @llvm.x86.clzero(i8*) #1 |