[LLVMdev] Invalid RegNum error

Timothy Baldridge tbaldridge at gmail.com
Fri Jan 17 14:22:58 PST 2014

I'm writing a compiler using LLVM, and suddenly today I started to get this
error, when emitting to a .s file.

Assertion failed: (I != M+Size && I->FromReg == RegNum && "Invalid
RegNum"), function getLLVMRegNum, file MCRegisterInfo.cpp, line 78.

I'm emitting using x86_64-apple-darwin. Any thoughts about what could be
causing this? LLVM validation does not report any errors.


“One of the main causes of the fall of the Roman Empire was that–lacking
zero–they had no way to indicate successful termination of their C
(Robert Firth)
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