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2013 Oct 03
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[LLVMdev] Question about PseudoInstExpansion
...en/PseudoLoweringEmitter.cpp (near line 141)
doesn't seem to allow converting a pseudo to a code-gen-only instruction.
What is the reason for this? Table-gen complains if I try to convert pseudo
PseudoMFHI64 to code-gen-only instruction MFHI64 using PseudoInstExpansion:
PseudoMFHI64 GPR64:$rd, ACC128:$ac -> MFHI64 GPR64:$rd
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