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| author | Hans-Peter Nilsson <hp@axis.com> | 2020-07-12 18:41:25 +0200 |
|---|---|---|
| committer | Hans-Peter Nilsson <hp@axis.com> | 2020-07-13 10:14:40 +0200 |
| commit | 9a2ae08b02d185a11e3e525e100ba637ce81c7ff (patch) | |
| tree | 7e98f9dd3d9cee797158c3957bdee30cdd163b31 /gcc/function.c | |
| parent | 881fb2091cf0609f7a6e3454a3b6f23062943b7e (diff) | |
| download | gcc-9a2ae08b02d185a11e3e525e100ba637ce81c7ff.zip gcc-9a2ae08b02d185a11e3e525e100ba637ce81c7ff.tar.gz gcc-9a2ae08b02d185a11e3e525e100ba637ce81c7ff.tar.bz2 | |
cris: Add new pass eliminating compares after delay-slot-filling
Delayed-branch-slot-filling a.k.a. reorg or dbr, often causes
opportunities for more compare-elimination than were visible for
the cmpelim pass. With cc0, these were caught by the
elimination pass run in "final", thus the missed opportunities
is a regression. A simple reorg-aware pass run just after reorg
handles most of them, if not all. I chose to keep the "mach2"
pass identifier string I copy-pasted from the SPARC port instead
of inventing one like "postdbr_cmpelim". Note the gap in numbers
in the test-case file names.
gcc:
PR target/93372
* config/cris/cris-passes.def: New file.
* config/cris/t-cris (PASSES_EXTRA): Add cris-passes.def.
* config/cris/cris.c: Add infrastructure bits and pass execute
function cris_postdbr_cmpelim.
* config/cris/cris-protos.h (make_pass_cris_postdbr_cmpelim): Declare.
gcc/testsuite:
* gcc.target/cris/pr93372-44.c, gcc.target/cris/pr93372-46.c: New.
Diffstat (limited to 'gcc/function.c')
0 files changed, 0 insertions, 0 deletions