[LLVMdev] Opinions Wanted: New asm Comments
dag at cray.com
Mon Jul 11 14:48:38 PDT 2011
I have a patch I'd like to commit that adds commentary to asm files
about which TableGen pattern generated a particular instruction. The
output looks like this:
cvtpd2ps %xmm0, %xmm0 # source.c:39
# Src: (intrinsic_wo_chain:v4f32 927:iPTR, VR128:v2f64:$src)
# Dst: (Int_CVTPD2PSrr:v4f32 VR128:v2f64:$src)
This is enormously helpful when trying to track down codegen bugs but
clutters the asm file pretty badly for "ordinary" users.
Right now I have this under control of a separate -asm-pattern flag.
All other asm commentary is controlled by -asm-verbose.
Is a new flag appropriate for this or should I just put it under
-asm-verbose with everything else? If we want a new flag, does anyone
have a spelling they'd recommend? I'm not particularly fond of
-asm-pattern but it was the best concise name my uncreative brain could
More information about the llvm-dev