llvm-project/llvm/test/CodeGen/X86/pr21099.ll

10 lines
271 B
LLVM

; RUN: llc < %s -O2 -mtriple=x86_64-- -verify-machineinstrs | FileCheck %s
define void @pr21099(i64* %p) {
; CHECK-LABEL: pr21099
; CHECK: lock addq $-2147483648
; This number is INT32_MIN: 0x80000000UL
%1 = atomicrmw add i64* %p, i64 -2147483648 seq_cst
ret void
}