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| author | Richard Biener <rguenther@suse.de> | 2021-11-03 13:26:48 +0100 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2021-11-03 15:00:10 +0100 |
| commit | 1967fd8f2197f2b0334ab0fbc26abc3d9efe56c9 (patch) | |
| tree | 13ffd45ae9f6e550e02db50366844ebe6e7da8d7 /gcc/tree-vrp.c | |
| parent | 67b0d47e20e655c0dd53a76ea88aab60fafb2059 (diff) | |
| download | gcc-1967fd8f2197f2b0334ab0fbc26abc3d9efe56c9.zip gcc-1967fd8f2197f2b0334ab0fbc26abc3d9efe56c9.tar.gz gcc-1967fd8f2197f2b0334ab0fbc26abc3d9efe56c9.tar.bz2 | |
tree-optimization/102970 - remap cliques when translating over backedges
The following makes sure to remap (or rather drop for simplicity)
dependence info encoded in MR_DEPENDENCE_CLIQUE when PRE PHI translation
translates a reference over a backedge since that ends up interleaving
two different loop iterations which boils down to two different
inline copies.
2021-11-03 Richard Biener <rguenther@suse.de>
PR tree-optimization/102970
* tree-ssa-pre.c (phi_translate_1): Drop clique and base
when translating a MEM_REF over a backedge.
* g++.dg/opt/pr102970.C: New testcase.
Diffstat (limited to 'gcc/tree-vrp.c')
0 files changed, 0 insertions, 0 deletions