blob: 9324d5dfa3bb84721c67dc4dc52aea9f28e1c71c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
|
; 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
}
|