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| author | Xionghu Luo <luoxhu@linux.ibm.com> | 2021-05-18 21:34:18 -0500 |
|---|---|---|
| committer | Xionghu Luo <luoxhu@linux.ibm.com> | 2021-05-18 21:34:18 -0500 |
| commit | de56f95afaaa22c67cbeec780921d63e8b34514e (patch) | |
| tree | c1f3457e45da38b04c2bd5d60e100e94fd974141 /gcc/tree-ssa-sink.c | |
| parent | 39ed6a88c74db5412652f0167d03f71eca4f02fc (diff) | |
| download | gcc-de56f95afaaa22c67cbeec780921d63e8b34514e.zip gcc-de56f95afaaa22c67cbeec780921d63e8b34514e.tar.gz gcc-de56f95afaaa22c67cbeec780921d63e8b34514e.tar.bz2 | |
Run pass_sink_code once more before store_merging
Gimple sink code pass runs quite early, there may be some new
oppertunities exposed by later gimple optmization passes, this patch
runs the sink code pass once more before store_merging. For detailed
discussion, please refer to:
https://gcc.gnu.org/pipermail/gcc-patches/2020-December/562352.html
Tested the SPEC2017 performance on P8LE, 544.nab_r is improved
by 2.43%, but no big changes to other cases, GEOMEAN is improved quite
small with 0.25%.
gcc/ChangeLog:
2021-05-18 Xionghu Luo <luoxhu@linux.ibm.com>
* passes.def: Add sink_code pass before store_merging.
* tree-ssa-sink.c (pass_sink_code:clone): New.
gcc/testsuite/ChangeLog:
2021-05-18 Xionghu Luo <luoxhu@linux.ibm.com>
* gcc.dg/tree-ssa/ssa-sink-1.c: Adjust.
* gcc.dg/tree-ssa/ssa-sink-2.c: Ditto.
* gcc.dg/tree-ssa/ssa-sink-3.c: Ditto.
* gcc.dg/tree-ssa/ssa-sink-4.c: Ditto.
* gcc.dg/tree-ssa/ssa-sink-5.c: Ditto.
* gcc.dg/tree-ssa/ssa-sink-6.c: Ditto.
* gcc.dg/tree-ssa/ssa-sink-7.c: Ditto.
* gcc.dg/tree-ssa/ssa-sink-8.c: Ditto.
* gcc.dg/tree-ssa/ssa-sink-9.c: Ditto.
* gcc.dg/tree-ssa/ssa-sink-10.c: Ditto.
* gcc.dg/tree-ssa/ssa-sink-13.c: Ditto.
* gcc.dg/tree-ssa/ssa-sink-14.c: Ditto.
* gcc.dg/tree-ssa/ssa-sink-16.c: Ditto.
* gcc.dg/tree-ssa/ssa-sink-17.c: Ditto.
* gcc.dg/tree-ssa/ssa-sink-18.c: New.
Diffstat (limited to 'gcc/tree-ssa-sink.c')
| -rw-r--r-- | gcc/tree-ssa-sink.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/tree-ssa-sink.c b/gcc/tree-ssa-sink.c index d33e56e..d252cbb 100644 --- a/gcc/tree-ssa-sink.c +++ b/gcc/tree-ssa-sink.c @@ -819,6 +819,7 @@ public: /* opt_pass methods: */ virtual bool gate (function *) { return flag_tree_sink != 0; } virtual unsigned int execute (function *); + opt_pass *clone (void) { return new pass_sink_code (m_ctxt); } }; // class pass_sink_code |