1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -march=x86-64 -verify-machineinstrs | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Worker; rdar://9692967 4*9880d681SAndroid Build Coastguard Worker 5*9880d681SAndroid Build Coastguard Workerdefine void @t1(i64* %p, i32 %b) nounwind { 6*9880d681SAndroid Build Coastguard Workerentry: 7*9880d681SAndroid Build Coastguard Worker %p.addr = alloca i64*, align 8 8*9880d681SAndroid Build Coastguard Worker store i64* %p, i64** %p.addr, align 8 9*9880d681SAndroid Build Coastguard Worker %tmp = load i64*, i64** %p.addr, align 8 10*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: t1: 11*9880d681SAndroid Build Coastguard Worker; CHECK: movl $2147483648, %eax 12*9880d681SAndroid Build Coastguard Worker; CHECK: lock orq %r{{.*}}, (%r{{.*}}) 13*9880d681SAndroid Build Coastguard Worker %0 = atomicrmw or i64* %tmp, i64 2147483648 seq_cst 14*9880d681SAndroid Build Coastguard Worker ret void 15*9880d681SAndroid Build Coastguard Worker} 16*9880d681SAndroid Build Coastguard Worker 17*9880d681SAndroid Build Coastguard Workerdefine void @t2(i64* %p, i32 %b) nounwind { 18*9880d681SAndroid Build Coastguard Workerentry: 19*9880d681SAndroid Build Coastguard Worker %p.addr = alloca i64*, align 8 20*9880d681SAndroid Build Coastguard Worker store i64* %p, i64** %p.addr, align 8 21*9880d681SAndroid Build Coastguard Worker %tmp = load i64*, i64** %p.addr, align 8 22*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: t2: 23*9880d681SAndroid Build Coastguard Worker; CHECK: lock orq $2147483644, (%r{{.*}}) 24*9880d681SAndroid Build Coastguard Worker %0 = atomicrmw or i64* %tmp, i64 2147483644 seq_cst 25*9880d681SAndroid Build Coastguard Worker ret void 26*9880d681SAndroid Build Coastguard Worker} 27