1 ; RUN: llc < %s -mcpu=pwr8 -mtriple=powerpc64le-unknown-unknown | FileCheck %s 2 define i8 @atomic_min_i8() { 3 top: 4 %0 = alloca i8, align 2 5 %1 = bitcast i8* %0 to i8* 6 call void @llvm.lifetime.start.p0i8(i64 2, i8* %1) 7 store i8 -1, i8* %0, align 2 8 %2 = atomicrmw min i8* %0, i8 0 acq_rel 9 %3 = load atomic i8, i8* %0 acquire, align 8 10 call void @llvm.lifetime.end.p0i8(i64 2, i8* %1) 11 ret i8 %3 12 ; CHECK-LABEL: atomic_min_i8 13 ; CHECK: lbarx [[DST:[0-9]+]], 14 ; CHECK-NEXT: extsb [[EXT:[0-9]+]], [[DST]] 15 ; CHECK-NEXT: cmpw {{[0-9]+}}, [[EXT]] 16 ; CHECK-NEXT: bge 0 17 } 18 define i16 @atomic_min_i16() { 19 top: 20 %0 = alloca i16, align 2 21 %1 = bitcast i16* %0 to i8* 22 call void @llvm.lifetime.start.p0i8(i64 2, i8* %1) 23 store i16 -1, i16* %0, align 2 24 %2 = atomicrmw min i16* %0, i16 0 acq_rel 25 %3 = load atomic i16, i16* %0 acquire, align 8 26 call void @llvm.lifetime.end.p0i8(i64 2, i8* %1) 27 ret i16 %3 28 ; CHECK-LABEL: atomic_min_i16 29 ; CHECK: lharx [[DST:[0-9]+]], 30 ; CHECK-NEXT: extsh [[EXT:[0-9]+]], [[DST]] 31 ; CHECK-NEXT: cmpw {{[0-9]+}}, [[EXT]] 32 ; CHECK-NEXT: bge 0 33 } 34 35 define i8 @atomic_max_i8() { 36 top: 37 %0 = alloca i8, align 2 38 %1 = bitcast i8* %0 to i8* 39 call void @llvm.lifetime.start.p0i8(i64 2, i8* %1) 40 store i8 -1, i8* %0, align 2 41 %2 = atomicrmw max i8* %0, i8 0 acq_rel 42 %3 = load atomic i8, i8* %0 acquire, align 8 43 call void @llvm.lifetime.end.p0i8(i64 2, i8* %1) 44 ret i8 %3 45 ; CHECK-LABEL: atomic_max_i8 46 ; CHECK: lbarx [[DST:[0-9]+]], 47 ; CHECK-NEXT: extsb [[EXT:[0-9]+]], [[DST]] 48 ; CHECK-NEXT: cmpw {{[0-9]+}}, [[EXT]] 49 ; CHECK-NEXT: ble 0 50 } 51 define i16 @atomic_max_i16() { 52 top: 53 %0 = alloca i16, align 2 54 %1 = bitcast i16* %0 to i8* 55 call void @llvm.lifetime.start.p0i8(i64 2, i8* %1) 56 store i16 -1, i16* %0, align 2 57 %2 = atomicrmw max i16* %0, i16 0 acq_rel 58 %3 = load atomic i16, i16* %0 acquire, align 8 59 call void @llvm.lifetime.end.p0i8(i64 2, i8* %1) 60 ret i16 %3 61 ; CHECK-LABEL: atomic_max_i16 62 ; CHECK: lharx [[DST:[0-9]+]], 63 ; CHECK-NEXT: extsh [[EXT:[0-9]+]], [[DST]] 64 ; CHECK-NEXT: cmpw {{[0-9]+}}, [[EXT]] 65 ; CHECK-NEXT: ble 0 66 } 67 68 declare void @llvm.lifetime.start.p0i8(i64, i8*) 69 declare void @llvm.lifetime.end.p0i8(i64, i8*) 70
