1 ; RUN: opt < %s -loweratomic -S | FileCheck %s
4 ; CHECK-LABEL: @cmpswap(
6 %pair = cmpxchg i8* %i, i8 0, i8 42 monotonic monotonic
7 %j = extractvalue { i8, i1 } %pair, 0
8 ; CHECK: [[OLDVAL:%[a-z0-9]+]] = load i8, i8* [[ADDR:%[a-z0-9]+]]
9 ; CHECK-NEXT: [[SAME:%[a-z0-9]+]] = icmp eq i8 [[OLDVAL]], 0
10 ; CHECK-NEXT: [[TO_STORE:%[a-z0-9]+]] = select i1 [[SAME]], i8 42, i8 [[OLDVAL]]
11 ; CHECK-NEXT: store i8 [[TO_STORE]], i8* [[ADDR]]
12 ; CHECK-NEXT: [[TMP:%[a-z0-9]+]] = insertvalue { i8, i1 } undef, i8 [[OLDVAL]], 0
13 ; CHECK-NEXT: [[RES:%[a-z0-9]+]] = insertvalue { i8, i1 } [[TMP]], i1 [[SAME]], 1
14 ; CHECK-NEXT: [[VAL:%[a-z0-9]+]] = extractvalue { i8, i1 } [[RES]], 0
16 ; CHECK: ret i8 [[VAL]]
23 %j = atomicrmw xchg i8* %i, i8 42 monotonic
24 ; CHECK: [[INST:%[a-z0-9]+]] = load
27 ; CHECK: ret i8 [[INST]]