llvm.org GIT mirror llvm / release_37 test / CodeGen / X86 / 2008-08-19-SubAndFetch.ll
release_37

Tree @release_37 (Download .tar.gz)

2008-08-19-SubAndFetch.ll @release_37raw · history · blame

; RUN: llc < %s -march=x86-64 | FileCheck %s

@var = external global i64		; <i64*> [#uses=1]

define i32 @main() nounwind {
entry:
; CHECK-LABEL: main:
; CHECK: lock
; CHECK: decq
	atomicrmw sub i64* @var, i64 1 monotonic
	unreachable
}