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Diffstat (limited to 'test/CodeGen/X86/pr21099.ll')
| -rw-r--r-- | test/CodeGen/X86/pr21099.ll | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/test/CodeGen/X86/pr21099.ll b/test/CodeGen/X86/pr21099.ll new file mode 100644 index 000000000000..07292c125eea --- /dev/null +++ b/test/CodeGen/X86/pr21099.ll @@ -0,0 +1,10 @@ +; RUN: llc < %s -O2 -march=x86-64 -verify-machineinstrs | FileCheck %s + +define void @pr21099(i64* %p) { +; CHECK-LABEL: pr21099 +; CHECK: lock +; CHECK-NEXT: addq $-2147483648 +; This number is INT32_MIN: 0x80000000UL + %1 = atomicrmw add i64* %p, i64 -2147483648 seq_cst + ret void +} |