1 ; RUN: llc < %s -march=ppc64 | FileCheck %s 2 ; RUN: llc < %s -march=ppc64 -mcpu=pwr7 | FileCheck %s 3 ; RUN: llc < %s -march=ppc64 -mcpu=pwr8 | FileCheck %s -check-prefix=CHECK-P8U 4 5 define i64 @exchange_and_add(i64* %mem, i64 %val) nounwind { 6 ; CHECK-LABEL: exchange_and_add: 7 ; CHECK: ldarx 8 %tmp = atomicrmw add i64* %mem, i64 %val monotonic 9 ; CHECK: stdcx. 10 ret i64 %tmp 11 } 12 13 define i8 @exchange_and_add8(i8* %mem, i8 %val) nounwind { 14 ; CHECK-LABEL: exchange_and_add8: 15 ; CHECK-P8U: lbarx 16 %tmp = atomicrmw add i8* %mem, i8 %val monotonic 17 ; CHECK-P8U: stbcx. 18 ret i8 %tmp 19 } 20 21 define i16 @exchange_and_add16(i16* %mem, i16 %val) nounwind { 22 ; CHECK-LABEL: exchange_and_add16: 23 ; CHECK-P8U: lharx 24 %tmp = atomicrmw add i16* %mem, i16 %val monotonic 25 ; CHECK-P8U: sthcx. 26 ret i16 %tmp 27 } 28 29 define i64 @exchange_and_cmp(i64* %mem) nounwind { 30 ; CHECK-LABEL: exchange_and_cmp: 31 ; CHECK: ldarx 32 %tmppair = cmpxchg i64* %mem, i64 0, i64 1 monotonic monotonic 33 %tmp = extractvalue { i64, i1 } %tmppair, 0 34 ; CHECK: stdcx. 35 ; CHECK: stdcx. 36 ret i64 %tmp 37 } 38 39 define i8 @exchange_and_cmp8(i8* %mem) nounwind { 40 ; CHECK-LABEL: exchange_and_cmp8: 41 ; CHECK-P8U: lbarx 42 %tmppair = cmpxchg i8* %mem, i8 0, i8 1 monotonic monotonic 43 %tmp = extractvalue { i8, i1 } %tmppair, 0 44 ; CHECK-P8U: stbcx. 45 ; CHECK-P8U: stbcx. 46 ret i8 %tmp 47 } 48 49 define i16 @exchange_and_cmp16(i16* %mem) nounwind { 50 ; CHECK-LABEL: exchange_and_cmp16: 51 ; CHECK-P8U: lharx 52 %tmppair = cmpxchg i16* %mem, i16 0, i16 1 monotonic monotonic 53 %tmp = extractvalue { i16, i1 } %tmppair, 0 54 ; CHECK-P8U: sthcx. 55 ; CHECK-P8U: sthcx. 56 ret i16 %tmp 57 } 58 59 define i64 @exchange(i64* %mem, i64 %val) nounwind { 60 ; CHECK-LABEL: exchange: 61 ; CHECK: ldarx 62 %tmp = atomicrmw xchg i64* %mem, i64 1 monotonic 63 ; CHECK: stdcx. 64 ret i64 %tmp 65 } 66 67 define i8 @exchange8(i8* %mem, i8 %val) nounwind { 68 ; CHECK-LABEL: exchange8: 69 ; CHECK-P8U: lbarx 70 %tmp = atomicrmw xchg i8* %mem, i8 1 monotonic 71 ; CHECK-P8U: stbcx. 72 ret i8 %tmp 73 } 74 75 define i16 @exchange16(i16* %mem, i16 %val) nounwind { 76 ; CHECK-LABEL: exchange16: 77 ; CHECK-P8U: lharx 78 %tmp = atomicrmw xchg i16* %mem, i16 1 monotonic 79 ; CHECK-P8U: sthcx. 80 ret i16 %tmp 81 } 82 83 define void @atomic_store(i64* %mem, i64 %val) nounwind { 84 entry: 85 ; CHECK: @atomic_store 86 store atomic i64 %val, i64* %mem release, align 64 87 ; CHECK: lwsync 88 ; CHECK-NOT: stdcx 89 ; CHECK: std 90 ret void 91 } 92 93 define i64 @atomic_load(i64* %mem) nounwind { 94 entry: 95 ; CHECK: @atomic_load 96 %tmp = load atomic i64, i64* %mem acquire, align 64 97 ; CHECK-NOT: ldarx 98 ; CHECK: ld 99 ; CHECK: lwsync 100 ret i64 %tmp 101 } 102 103
