[PATCH 0/4] v4 PHI-OPT move abs_replacement to match.pd

[<apinski@marvell.com>]

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