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| author | Richard Biener <rguenther@suse.de> | 2021-07-02 12:57:06 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2021-07-02 13:54:30 +0200 |
| commit | 4546f423ecff96f223adfbec4963d2ff17f27c7b (patch) | |
| tree | 8e730b452d7c751f146eb4dbe5c9fd8cc53a3e64 /gcc/tree-diagnostic.c | |
| parent | bc8f0ed7042280282035168428f6afc839997cf0 (diff) | |
| download | gcc-4546f423ecff96f223adfbec4963d2ff17f27c7b.zip gcc-4546f423ecff96f223adfbec4963d2ff17f27c7b.tar.gz gcc-4546f423ecff96f223adfbec4963d2ff17f27c7b.tar.bz2 | |
tree-optimization/101293 - further enhance LIMs ref canonicalization
This makes sure to handle MEM[p + 4] and MEM[p].j with j at offset 4
as the same ref in store motion. For hashing we need to be
more restrictive in what we handle since there's no poly-int
handlers for inchash. For comparison we can compare poly_offsets directly.
2021-07-02 Richard Biener <rguenther@suse.de>
PR tree-optimization/101293
* tree-ssa-loop-im.c (mem_ref_hasher::equal): Compare MEM_REF bases
with combined offsets.
(gather_mem_refs_stmt): Hash MEM_REFs as if their offset were
combined with the rest of the offset.
* gcc.dg/tree-ssa/ssa-lim-15.c: New testcase.
Diffstat (limited to 'gcc/tree-diagnostic.c')
0 files changed, 0 insertions, 0 deletions