1 ; RUN: llc < %s -mtriple=armv7-apple-ios -verify-machineinstrs | FileCheck %s
3 define void @test_cmpxchg_weak(i32 *%addr, i32 %desired, i32 %new) {
4 ; CHECK-LABEL: test_cmpxchg_weak:
6 %pair = cmpxchg weak i32* %addr, i32 %desired, i32 %new seq_cst monotonic
7 %oldval = extractvalue { i32, i1 } %pair, 0
9 ; CHECK: ldrex [[LOADED:r[0-9]+]], [r0]
10 ; CHECK: cmp [[LOADED]], r1
11 ; CHECK: strexeq [[SUCCESS:r[0-9]+]], r2, [r0]
12 ; CHECK: cmpeq [[SUCCESS]], #0
13 ; CHECK: bne [[DONE:LBB[0-9]+_[0-9]+]]
19 store i32 %oldval, i32* %addr
24 define i1 @test_cmpxchg_weak_to_bool(i32, i32 *%addr, i32 %desired, i32 %new) {
25 ; CHECK-LABEL: test_cmpxchg_weak_to_bool:
27 %pair = cmpxchg weak i32* %addr, i32 %desired, i32 %new seq_cst monotonic
28 %success = extractvalue { i32, i1 } %pair, 1
32 ; CHECK: ldrex [[LOADED:r[0-9]+]], [r1]
33 ; CHECK: cmp [[LOADED]], r2
34 ; CHECK: strexeq [[STATUS:r[0-9]+]], r3, [r1]
35 ; CHECK: cmpeq [[STATUS]], #0
36 ; CHECK: bne [[DONE:LBB[0-9]+_[0-9]+]]