diff options
| -rw-r--r-- | llvm/lib/Target/ARM/ARMExpandPseudoInsts.cpp | 11 | ||||
| -rw-r--r-- | llvm/test/CodeGen/ARM/cmpxchg-O0.ll | 8 |
2 files changed, 8 insertions, 11 deletions
diff --git a/llvm/lib/Target/ARM/ARMExpandPseudoInsts.cpp b/llvm/lib/Target/ARM/ARMExpandPseudoInsts.cpp index 56f5728..a7b2996 100644 --- a/llvm/lib/Target/ARM/ARMExpandPseudoInsts.cpp +++ b/llvm/lib/Target/ARM/ARMExpandPseudoInsts.cpp @@ -932,13 +932,10 @@ bool ARMExpandPseudo::ExpandCMP_SWAP_64(MachineBasicBlock &MBB, .addReg(DestLo, getKillRegState(Dest.isDead())) .addReg(DesiredLo, getKillRegState(Desired.isDead()))); - unsigned SBCrr = IsThumb ? ARM::t2SBCrr : ARM::SBCrr; - MIB = BuildMI(LoadCmpBB, DL, TII->get(SBCrr)) - .addReg(StatusReg, RegState::Define | RegState::Dead) - .addReg(DestHi, getKillRegState(Dest.isDead())) - .addReg(DesiredHi, getKillRegState(Desired.isDead())); - AddDefaultPred(MIB); - MIB.addReg(ARM::CPSR, RegState::Kill); + BuildMI(LoadCmpBB, DL, TII->get(CMPrr)) + .addReg(DestHi, getKillRegState(Dest.isDead())) + .addReg(DesiredHi, getKillRegState(Desired.isDead())) + .addImm(ARMCC::EQ).addReg(ARM::CPSR, RegState::Kill); unsigned Bcc = IsThumb ? ARM::tBcc : ARM::Bcc; BuildMI(LoadCmpBB, DL, TII->get(Bcc)) diff --git a/llvm/test/CodeGen/ARM/cmpxchg-O0.ll b/llvm/test/CodeGen/ARM/cmpxchg-O0.ll index ec3005d..f8ad2bb 100644 --- a/llvm/test/CodeGen/ARM/cmpxchg-O0.ll +++ b/llvm/test/CodeGen/ARM/cmpxchg-O0.ll @@ -69,9 +69,9 @@ define { i64, i1 } @test_cmpxchg_64(i64* %addr, i64 %desired, i64 %new) nounwind ; CHECK: [[RETRY:.LBB[0-9]+_[0-9]+]]: ; CHECK: ldrexd [[OLDLO:r[0-9]+]], [[OLDHI:r[0-9]+]], [r0] ; CHECK: cmp [[OLDLO]], r6 -; CHECK: sbcs{{(\.w)?}} [[STATUS:r[0-9]+]], [[OLDHI]], r7 +; CHECK: cmpeq [[OLDHI]], r7 ; CHECK: bne [[DONE:.LBB[0-9]+_[0-9]+]] -; CHECK: strexd [[STATUS]], r4, r5, [r0] +; CHECK: strexd [[STATUS:r[0-9]+]], r4, r5, [r0] ; CHECK: cmp{{(\.w)?}} [[STATUS]], #0 ; CHECK: bne [[RETRY]] ; CHECK: [[DONE]]: @@ -87,9 +87,9 @@ define { i64, i1 } @test_nontrivial_args(i64* %addr, i64 %desired, i64 %new) { ; CHECK: [[RETRY:.LBB[0-9]+_[0-9]+]]: ; CHECK: ldrexd [[OLDLO:r[0-9]+]], [[OLDHI:r[0-9]+]], [r0] ; CHECK: cmp [[OLDLO]], {{r[0-9]+}} -; CHECK: sbcs{{(\.w)?}} [[STATUS:r[0-9]+]], [[OLDHI]], {{r[0-9]+}} +; CHECK: cmpeq [[OLDHI]], {{r[0-9]+}} ; CHECK: bne [[DONE:.LBB[0-9]+_[0-9]+]] -; CHECK: strexd [[STATUS]], {{r[0-9]+}}, {{r[0-9]+}}, [r0] +; CHECK: strexd [[STATUS:r[0-9]+]], {{r[0-9]+}}, {{r[0-9]+}}, [r0] ; CHECK: cmp{{(\.w)?}} [[STATUS]], #0 ; CHECK: bne [[RETRY]] ; CHECK: [[DONE]]: |