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| author | Richard Biener <rguenther@suse.de> | 2022-04-13 14:53:40 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2022-04-13 15:59:14 +0200 |
| commit | ca145c6306f19272ac8756d88c4eba0bfdf01dfb (patch) | |
| tree | c5660dd0a8056f52cf7b1ead2effeb4c986d6672 /gcc/d | |
| parent | 29c46490de4616b911fccb34a9479f768fb51e94 (diff) | |
| download | gcc-ca145c6306f19272ac8756d88c4eba0bfdf01dfb.zip gcc-ca145c6306f19272ac8756d88c4eba0bfdf01dfb.tar.gz gcc-ca145c6306f19272ac8756d88c4eba0bfdf01dfb.tar.bz2 | |
tree-optimization/105263 - reassoc and DFP
reassoc has certain tricks which in the end depend on the ability
to undo them. For DFP creating a -1. constant is easy but
re-identifying is appearantly not - real_minus_onep rejects those
outright for DFP. So we have to disable (at least) this one trick.
2022-04-13 Richard Biener <rguenther@suse.de>
PR tree-optimization/105263
* tree-ssa-reassoc.cc (try_special_add_to_ops): Do not consume
negates in multiplication chains with DFP.
* gcc.dg/pr105263.c: New testcase.
Diffstat (limited to 'gcc/d')
0 files changed, 0 insertions, 0 deletions