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Implicit defs/uses list may be empty.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5103 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -92,13 +92,13 @@ namespace {
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void invalidatePhysRegs(const MachineInstr *MI) {
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unsigned Opcode = MI->getOpcode();
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const MachineInstrDescriptor &Desc = TM.getInstrInfo().get(Opcode);
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const unsigned *regs = Desc.ImplicitUses;
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while (*regs)
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RegsUsed.insert(*regs++);
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if (const unsigned *regs = Desc.ImplicitUses)
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while (*regs)
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RegsUsed.insert(*regs++);
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regs = Desc.ImplicitDefs;
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while (*regs)
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RegsUsed.insert(*regs++);
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if (const unsigned *regs = Desc.ImplicitDefs)
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while (*regs)
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RegsUsed.insert(*regs++);
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}
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void cleanupAfterFunction() {
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