| ; RUN: llc < %s -O0 -mtriple=x86_64-- -mcpu=corei7 -verify-machineinstrs | FileCheck %s --check-prefix X64 |
| ; RUN: llc < %s -O0 -mtriple=i686-- -mcpu=corei7 -verify-machineinstrs | FileCheck %s --check-prefix X32 |
| |
| @sc8 = external global i8 |
| |
| define void @atomic_fetch_add8() nounwind { |
| ; X64-LABEL: atomic_fetch_add8: |
| ; X32-LABEL: atomic_fetch_add8: |
| entry: |
| ; 32-bit |
| %t1 = atomicrmw add i8* @sc8, i8 1 acquire |
| ; X64: lock |
| ; X64: incb |
| ; X32: lock |
| ; X32: incb |
| %t2 = atomicrmw add i8* @sc8, i8 3 acquire |
| ; X64: lock |
| ; X64: addb $3 |
| ; X32: lock |
| ; X32: addb $3 |
| %t3 = atomicrmw add i8* @sc8, i8 5 acquire |
| ; X64: lock |
| ; X64: xaddb |
| ; X32: lock |
| ; X32: xaddb |
| %t4 = atomicrmw add i8* @sc8, i8 %t3 acquire |
| ; X64: lock |
| ; X64: addb |
| ; X32: lock |
| ; X32: addb |
| ret void |
| ; X64: ret |
| ; X32: ret |
| } |
| |
| define void @atomic_fetch_sub8() nounwind { |
| ; X64-LABEL: atomic_fetch_sub8: |
| ; X32-LABEL: atomic_fetch_sub8: |
| %t1 = atomicrmw sub i8* @sc8, i8 1 acquire |
| ; X64: lock |
| ; X64: decb |
| ; X32: lock |
| ; X32: decb |
| %t2 = atomicrmw sub i8* @sc8, i8 3 acquire |
| ; X64: lock |
| ; X64: subb $3 |
| ; X32: lock |
| ; X32: subb $3 |
| %t3 = atomicrmw sub i8* @sc8, i8 5 acquire |
| ; X64: lock |
| ; X64: xaddb |
| ; X32: lock |
| ; X32: xaddb |
| %t4 = atomicrmw sub i8* @sc8, i8 %t3 acquire |
| ; X64: lock |
| ; X64: subb |
| ; X32: lock |
| ; X32: subb |
| ret void |
| ; X64: ret |
| ; X32: ret |
| } |
| |
| define void @atomic_fetch_and8() nounwind { |
| ; X64-LABEL: atomic_fetch_and8: |
| ; X32-LABEL: atomic_fetch_and8: |
| %t1 = atomicrmw and i8* @sc8, i8 3 acquire |
| ; X64: lock |
| ; X64: andb $3 |
| ; X32: lock |
| ; X32: andb $3 |
| %t2 = atomicrmw and i8* @sc8, i8 5 acquire |
| ; X64: andb |
| ; X64: lock |
| ; X64: cmpxchgb |
| ; X32: andb |
| ; X32: lock |
| ; X32: cmpxchgb |
| %t3 = atomicrmw and i8* @sc8, i8 %t2 acquire |
| ; X64: lock |
| ; X64: andb |
| ; X32: lock |
| ; X32: andb |
| ret void |
| ; X64: ret |
| ; X32: ret |
| } |
| |
| define void @atomic_fetch_or8() nounwind { |
| ; X64-LABEL: atomic_fetch_or8: |
| ; X32-LABEL: atomic_fetch_or8: |
| %t1 = atomicrmw or i8* @sc8, i8 3 acquire |
| ; X64: lock |
| ; X64: orb $3 |
| ; X32: lock |
| ; X32: orb $3 |
| %t2 = atomicrmw or i8* @sc8, i8 5 acquire |
| ; X64: orb |
| ; X64: lock |
| ; X64: cmpxchgb |
| ; X32: orb |
| ; X32: lock |
| ; X32: cmpxchgb |
| %t3 = atomicrmw or i8* @sc8, i8 %t2 acquire |
| ; X64: lock |
| ; X64: orb |
| ; X32: lock |
| ; X32: orb |
| ret void |
| ; X64: ret |
| ; X32: ret |
| } |
| |
| define void @atomic_fetch_xor8() nounwind { |
| ; X64-LABEL: atomic_fetch_xor8: |
| ; X32-LABEL: atomic_fetch_xor8: |
| %t1 = atomicrmw xor i8* @sc8, i8 3 acquire |
| ; X64: lock |
| ; X64: xorb $3 |
| ; X32: lock |
| ; X32: xorb $3 |
| %t2 = atomicrmw xor i8* @sc8, i8 5 acquire |
| ; X64: xorb |
| ; X64: lock |
| ; X64: cmpxchgb |
| ; X32: xorb |
| ; X32: lock |
| ; X32: cmpxchgb |
| %t3 = atomicrmw xor i8* @sc8, i8 %t2 acquire |
| ; X64: lock |
| ; X64: xorb |
| ; X32: lock |
| ; X32: xorb |
| ret void |
| ; X64: ret |
| ; X32: ret |
| } |
| |
| define void @atomic_fetch_nand8(i8 %x) nounwind { |
| ; X64-LABEL: atomic_fetch_nand8: |
| ; X32-LABEL: atomic_fetch_nand8: |
| %t1 = atomicrmw nand i8* @sc8, i8 %x acquire |
| ; X64: andb |
| ; X64: notb |
| ; X64: lock |
| ; X64: cmpxchgb |
| ; X32: andb |
| ; X32: notb |
| ; X32: lock |
| ; X32: cmpxchgb |
| ret void |
| ; X64: ret |
| ; X32: ret |
| } |
| |
| define void @atomic_fetch_max8(i8 %x) nounwind { |
| ; X64-LABEL: atomic_fetch_max8: |
| ; X32-LABEL: atomic_fetch_max8: |
| %t1 = atomicrmw max i8* @sc8, i8 %x acquire |
| ; X64: movb |
| ; X64: movb |
| ; X64: subb |
| ; X64: lock |
| ; X64: cmpxchgb |
| |
| ; X32: movb |
| ; X32: movb |
| ; X32: subb |
| ; X32: lock |
| ; X32: cmpxchgb |
| ret void |
| ; X64: ret |
| ; X32: ret |
| } |
| |
| define void @atomic_fetch_min8(i8 %x) nounwind { |
| ; X64-LABEL: atomic_fetch_min8: |
| ; X32-LABEL: atomic_fetch_min8: |
| %t1 = atomicrmw min i8* @sc8, i8 %x acquire |
| ; X64: movb |
| ; X64: movb |
| ; X64: subb |
| ; X64: lock |
| ; X64: cmpxchgb |
| |
| ; X32: movb |
| ; X32: movb |
| ; X32: subb |
| ; X32: lock |
| ; X32: cmpxchgb |
| ret void |
| ; X64: ret |
| ; X32: ret |
| } |
| |
| define void @atomic_fetch_umax8(i8 %x) nounwind { |
| ; X64-LABEL: atomic_fetch_umax8: |
| ; X32-LABEL: atomic_fetch_umax8: |
| %t1 = atomicrmw umax i8* @sc8, i8 %x acquire |
| ; X64: movb |
| ; X64: movb |
| ; X64: subb |
| ; X64: lock |
| ; X64: cmpxchgb |
| |
| ; X32: movb |
| ; X32: movb |
| ; X32: subb |
| ; X32: lock |
| ; X32: cmpxchgb |
| ret void |
| ; X64: ret |
| ; X32: ret |
| } |
| |
| define void @atomic_fetch_umin8(i8 %x) nounwind { |
| ; X64-LABEL: atomic_fetch_umin8: |
| ; X32-LABEL: atomic_fetch_umin8: |
| %t1 = atomicrmw umin i8* @sc8, i8 %x acquire |
| ; X64: movb |
| ; X64: movb |
| ; X64: subb |
| ; X64: lock |
| ; X64: cmpxchgb |
| |
| ; X32: movb |
| ; X32: movb |
| ; X32: subb |
| ; X32: lock |
| ; X32: cmpxchgb |
| ret void |
| ; X64: ret |
| ; X32: ret |
| } |
| |
| define void @atomic_fetch_cmpxchg8() nounwind { |
| ; X64-LABEL: atomic_fetch_cmpxchg8: |
| ; X32-LABEL: atomic_fetch_cmpxchg8: |
| %t1 = cmpxchg i8* @sc8, i8 0, i8 1 acquire acquire |
| ; X64: lock |
| ; X64: cmpxchgb |
| ; X32: lock |
| ; X32: cmpxchgb |
| ret void |
| ; X64: ret |
| ; X32: ret |
| } |
| |
| define void @atomic_fetch_store8(i8 %x) nounwind { |
| ; X64-LABEL: atomic_fetch_store8: |
| ; X32-LABEL: atomic_fetch_store8: |
| store atomic i8 %x, i8* @sc8 release, align 4 |
| ; X64-NOT: lock |
| ; X64: movb |
| ; X32-NOT: lock |
| ; X32: movb |
| ret void |
| ; X64: ret |
| ; X32: ret |
| } |
| |
| define void @atomic_fetch_swap8(i8 %x) nounwind { |
| ; X64-LABEL: atomic_fetch_swap8: |
| ; X32-LABEL: atomic_fetch_swap8: |
| %t1 = atomicrmw xchg i8* @sc8, i8 %x acquire |
| ; X64-NOT: lock |
| ; X64: xchgb |
| ; X32-NOT: lock |
| ; X32: xchgb |
| ret void |
| ; X64: ret |
| ; X32: ret |
| } |
