diff options
Diffstat (limited to 'lib/CodeGen/MachineVerifier.cpp')
| -rw-r--r-- | lib/CodeGen/MachineVerifier.cpp | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/lib/CodeGen/MachineVerifier.cpp b/lib/CodeGen/MachineVerifier.cpp index 7351119f47..e78ca9bbb0 100644 --- a/lib/CodeGen/MachineVerifier.cpp +++ b/lib/CodeGen/MachineVerifier.cpp @@ -602,9 +602,7 @@ MachineVerifier::visitMachineOperand(const MachineOperand *MO, unsigned MONum) { // Check Live Variables. if (MI->isDebugValue()) { // Liveness checks are not valid for debug values. - } else if (MO->isUndef()) { - // An <undef> doesn't refer to any register, so just skip it. - } else if (MO->isUse()) { + } else if (MO->isUse() && !MO->isUndef()) { regsLiveInButUnused.erase(Reg); bool isKill = false; @@ -675,8 +673,7 @@ MachineVerifier::visitMachineOperand(const MachineOperand *MO, unsigned MONum) { MInfo.vregsLiveIn.insert(std::make_pair(Reg, MI)); } } - } else { - assert(MO->isDef()); + } else if (MO->isDef()) { // Register defined. // TODO: verify that earlyclobber ops are not used. if (MO->isDead()) |