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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=x86_64-unknown-linux-gnu -show-mc-encoding < %s | FileCheck %s
@a = external dso_local global { { i64 } }
define i32 @atomic_global() nounwind {
; CHECK-LABEL: atomic_global:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: xorl %eax, %eax # encoding: [0x31,0xc0]
; CHECK-NEXT: lock btsq %rax, a(%rip) # encoding: [0xf0,0x48,0x0f,0xab,0x05,A,A,A,A]
; CHECK-NEXT: # fixup A - offset: 5, value: a, kind: reloc_riprel_4byte
; CHECK-NEXT: xorl %eax, %eax # encoding: [0x31,0xc0]
; CHECK-NEXT: retq # encoding: [0xc3]
entry:
%shl.i = shl i64 1, 0
%0 = atomicrmw or ptr @a, i64 %shl.i monotonic, align 8
%and.i = and i64 %shl.i, %0
ret i32 0
}
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