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| author | Richard Biener <rguenther@suse.de> | 2022-05-20 12:24:40 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2022-05-24 08:20:11 +0200 |
| commit | 1adf11822bd48f4d65156b7642514630c08c4d00 (patch) | |
| tree | aa6609c0216133df578f8a3d5b510dd6c0e1192e /gcc/fortran | |
| parent | d918faea1217596877a35c4946500399731fbbd3 (diff) | |
| download | gcc-1adf11822bd48f4d65156b7642514630c08c4d00.zip gcc-1adf11822bd48f4d65156b7642514630c08c4d00.tar.gz gcc-1adf11822bd48f4d65156b7642514630c08c4d00.tar.bz2 | |
tree-optimization/100221 - improve DSE a bit
When facing multiple PHI defs and one feeding the other we can
postpone processing uses of one and thus can proceed.
2022-05-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/100221
* tree-ssa-dse.cc (contains_phi_arg): New function.
(dse_classify_store): Postpone PHI defs that feed another PHI in defs.
* gcc.dg/tree-ssa/ssa-dse-44.c: New testcase.
* gcc.dg/tree-ssa/ssa-dse-45.c: Likewise.
Diffstat (limited to 'gcc/fortran')
0 files changed, 0 insertions, 0 deletions