diff options
Diffstat (limited to 'llvm/test/CodeGen')
| -rw-r--r-- | llvm/test/CodeGen/X86/xray-loop-detection.ll | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/xray-loop-detection.ll b/llvm/test/CodeGen/X86/xray-loop-detection.ll new file mode 100644 index 00000000000..3cd6b4aa6f8 --- /dev/null +++ b/llvm/test/CodeGen/X86/xray-loop-detection.ll @@ -0,0 +1,23 @@ +; RUN: llc -filetype=asm -o - -mtriple=x86_64-unknown-linux-gnu < %s | FileCheck %s +; RUN: llc -filetype=asm -o - -mtriple=x86_64-darwin-unknown < %s | FileCheck %s + +define i32 @foo(i32 %i) nounwind noinline uwtable "xray-instruction-threshold"="1" { +entry: + br label %Test +Test: + %indvar = phi i32 [0, %entry], [%nextindvar, %Inc] + %cond = icmp eq i32 %indvar, %i + br i1 %cond, label %Exit, label %Inc +Inc: + %nextindvar = add i32 %indvar, 1 + br label %Test +Exit: + %retval = phi i32 [%indvar, %Test] + ret i32 %retval +} + +; CHECK-LABEL: xray_sled_0: +; CHECK-NEXT: .ascii "\353\t" +; CHECK-NEXT: nopw 512(%rax,%rax) +; CHECK-LABEL: Ltmp0: + |
