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| author | Jan Hubicka <jh@suse.cz> | 2021-03-18 17:15:34 +0100 |
|---|---|---|
| committer | Jan Hubicka <jh@suse.cz> | 2021-03-18 17:15:34 +0100 |
| commit | ab03c0d5753549f1a78eeb706510b55fb97c8651 (patch) | |
| tree | 57dcd87df1c2c19386d2afd6891923322205a87a /gcc/gimple-array-bounds.cc | |
| parent | d9f0ade001533c9544bf2153b6baa8844ec0bee4 (diff) | |
| download | gcc-ab03c0d5753549f1a78eeb706510b55fb97c8651.zip gcc-ab03c0d5753549f1a78eeb706510b55fb97c8651.tar.gz gcc-ab03c0d5753549f1a78eeb706510b55fb97c8651.tar.bz2 | |
Fix idiv latencies for znver3
update costs of integer divides to match actual latencies (the scheduler model
already does the right thing). It is essentially no-op, since we end up
expanding idiv for all sensible constants, so this only may end up disabling
vectorization in some cases, but I did not find any such examples. However in
general it is better ot have actual latencies than random numbers.
gcc/ChangeLog:
2021-03-18 Jan Hubicka <hubicka@ucw.cz>
* config/i386/x86-tune-costs.h (struct processor_costs): Fix costs of
integer divides1.
Diffstat (limited to 'gcc/gimple-array-bounds.cc')
0 files changed, 0 insertions, 0 deletions