Commit Graph

4 Commits

Author SHA1 Message Date
Arthur Eubanks ce3c3cb291 [llvm-reduce] Check if reduction fails/is redundant before invoking oracle
So we don't over count the number of chunks and do unnecessary work reducing more chunks than exist.

This lowers some random reduction I tested with locally from 250s to 232s.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D136127
2022-10-18 08:43:56 -07:00
Arthur Eubanks 2592ccdea7 [llvm-reduce] Unify pass logging
We randomly use outs() or errs(), which makes test logs confusing.
We also randomly add/don't add a line afterward.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D136130
2022-10-18 08:42:37 -07:00
Kazu Hirata 988025adc7 [llvm-reduce] Fix a warning
This patch fixes:

  llvm/tools/llvm-reduce/deltas/ReduceOpcodes.cpp:96:21: warning:
  unused variable ‘Op’ [-Wunused-variable]
2022-10-15 12:28:11 -07:00
Matt Arsenault 573a5de755 llvm-reduce: Add opcode reduction pass
Try some dumb strength reductions to "simpler" opcodes.
Make some opcode substitutions I typically try to get smaller
MIR out of codegen. This is a bit target specific and I have a
lot of increasingly target specific modifications I try
during manual reduction.
2022-10-12 17:34:03 -07:00