1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -loweratomic -S | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Workerdefine i8 @cmpswap() { 4*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @cmpswap( 5*9880d681SAndroid Build Coastguard Worker %i = alloca i8 6*9880d681SAndroid Build Coastguard Worker %pair = cmpxchg i8* %i, i8 0, i8 42 monotonic monotonic 7*9880d681SAndroid Build Coastguard Worker %j = extractvalue { i8, i1 } %pair, 0 8*9880d681SAndroid Build Coastguard Worker; CHECK: [[OLDVAL:%[a-z0-9]+]] = load i8, i8* [[ADDR:%[a-z0-9]+]] 9*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: [[SAME:%[a-z0-9]+]] = icmp eq i8 [[OLDVAL]], 0 10*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: [[TO_STORE:%[a-z0-9]+]] = select i1 [[SAME]], i8 42, i8 [[OLDVAL]] 11*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: store i8 [[TO_STORE]], i8* [[ADDR]] 12*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = insertvalue { i8, i1 } undef, i8 [[OLDVAL]], 0 13*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: [[RES:%[a-z0-9]+]] = insertvalue { i8, i1 } [[TMP]], i1 [[SAME]], 1 14*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: [[VAL:%[a-z0-9]+]] = extractvalue { i8, i1 } [[RES]], 0 15*9880d681SAndroid Build Coastguard Worker ret i8 %j 16*9880d681SAndroid Build Coastguard Worker; CHECK: ret i8 [[VAL]] 17*9880d681SAndroid Build Coastguard Worker} 18*9880d681SAndroid Build Coastguard Worker 19*9880d681SAndroid Build Coastguard Worker 20*9880d681SAndroid Build Coastguard Workerdefine i8 @swap() { 21*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @swap( 22*9880d681SAndroid Build Coastguard Worker %i = alloca i8 23*9880d681SAndroid Build Coastguard Worker %j = atomicrmw xchg i8* %i, i8 42 monotonic 24*9880d681SAndroid Build Coastguard Worker; CHECK: [[INST:%[a-z0-9]+]] = load 25*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: store 26*9880d681SAndroid Build Coastguard Worker ret i8 %j 27*9880d681SAndroid Build Coastguard Worker; CHECK: ret i8 [[INST]] 28*9880d681SAndroid Build Coastguard Worker} 29