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Optional def can be either a def or a use (of reg0).

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157640 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2012-05-29 19:40:44 +00:00
parent 1386e9b7b1
commit cac58aa80e
1 changed files with 1 additions and 1 deletions
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2
lib/CodeGen/MachineVerifier.cpp
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@ -634,7 +634,7 @@ MachineVerifier::visitMachineOperand(const MachineOperand *MO, unsigned MONum) {
if (MONum < MCID.getNumDefs()) {
if (!MO->isReg())
report("Explicit definition must be a register", MO, MONum);
else if (!MO->isDef())
else if (!MO->isDef() && !MCOI.isOptionalDef())
report("Explicit definition marked as use", MO, MONum);
else if (MO->isImplicit())
report("Explicit definition marked as implicit", MO, MONum);