saaadhu added a comment. If you've added X, Y, Z and SP to GCCRegNames, you don't need AddlRegNames array at all,
The reason I had them in AddlRegNames was to tell Clang that they alias regs in GCCRegNames. I followed X86TargetInfo's example - it has "ax" in GCCRegNames, and "al", "ah", "eax" and "rax" in AddlRegNames. I figured Clang could potentially use the fact that they alias when analyzing inline asm to detect unintended clobbers. https://reviews.llvm.org/D28343 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
