[PATCH 0/4] v4 PHI-OPT move abs_replacement to match.pd
apinski@marvell.com
apinski@marvell.com
Sun Jun 27 23:24:56 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 4 (unapproved) 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).
v3 to v4 Changes:
* pushed the approved patches which are not dependent on unapproved ones
* Change 1st patch to only duplicate in one direction and expanded comment
on why it is safe and what it is needed
Andrew Pinski (4):
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
Port most of the A CMP 0 ? A : -A to match
gcc/match.pd | 60 +++++
gcc/testsuite/gcc.dg/tree-ssa/phi-opt-15.c | 4 +-
gcc/tree-ssa-phiopt.c | 291 +++++++++------------
3 files changed, 185 insertions(+), 170 deletions(-)
--
2.27.0
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