diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/stackmap-shadow-optimization.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/stackmap-shadow-optimization.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/stackmap-shadow-optimization.ll b/llvm/test/CodeGen/X86/stackmap-shadow-optimization.ll new file mode 100644 index 00000000000..63debe396b6 --- /dev/null +++ b/llvm/test/CodeGen/X86/stackmap-shadow-optimization.ll @@ -0,0 +1,21 @@ +; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7 -disable-fp-elim | FileCheck %s + +; Check that the X86 stackmap shadow optimization is only outputting a 1-byte +; nop here. 8-bytes are requested, but 7 are covered by the code for the call to +; bar, the frame teardown and the return. +define void @shadow_optimization_test() { +entry: +; CHECK-LABEL: shadow_optimization_test: +; CHECK: callq _bar +; CHECK-NOT: nop +; CHECK: callq _bar +; CHECK: retq +; CHECK: nop + call void @bar() + tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 0, i32 8) + call void @bar() + ret void +} + +declare void @llvm.experimental.stackmap(i64, i32, ...) +declare void @bar()
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