[PATCH 0/7] PHI-OPT move abs_replacement to match.pd

apinski@marvell.com apinski@marvell.com
Wed Jun 23 22:19:08 GMT 2021

From: Andrew Pinski <apinski@marvell.com>

To able to move PHI-OPT's abs_replacement to match.pd, a bunch
of support needed to be added to PHI-OPT.
This is a set of 7 patches which allows us to remove abs_replacement
and even does one set further and does a few extra transformations
that abs_replacement did not do (just because of the moving from
fold to match).

Andrew Pinski (7):
  Expand the comparison argument of fold_cond_expr_with_comparison
  Reset the range info on the moved instruction in PHIOPT
  Duplicate the range information of the phi onto the new ssa_name
  Allow match-and-simplified phiopt to run in early phiopt
  Try inverted comparison for match_simplify in phiopt
  Lower for loops before lowering cond in genmatch
  Port most of the A CMP 0 ? A : -A to match

 gcc/fold-const.c                           |  39 +--
 gcc/genmatch.c                             |  28 +-
 gcc/match.pd                               |  60 +++++
 gcc/testsuite/gcc.dg/tree-ssa/phi-opt-15.c |   4 +-
 gcc/tree-ssa-phiopt.c                      | 286 +++++++++------------
 5 files changed, 217 insertions(+), 200 deletions(-)


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