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| author | Robin Dapp <rdapp@linux.ibm.com> | 2019-11-27 13:46:17 +0100 |
|---|---|---|
| committer | Robin Dapp <rdapp@linux.ibm.com> | 2022-01-19 18:34:10 +0100 |
| commit | 46346d8d76c24bd07a30cb2c367e34601efabfef (patch) | |
| tree | 46c1ed9744d972dde2ea4dfcbf04ed8f7c71b556 /gcc/fortran | |
| parent | 9b8eaa282250ad260e01d164093b597579db00d9 (diff) | |
| download | gcc-46346d8d76c24bd07a30cb2c367e34601efabfef.zip gcc-46346d8d76c24bd07a30cb2c367e34601efabfef.tar.gz gcc-46346d8d76c24bd07a30cb2c367e34601efabfef.tar.bz2 | |
ifcvt: Improve costs handling for noce_convert_multiple.
When noce_convert_multiple is called the original costs are not yet
initialized. Therefore, up to now, costs were only ever unfairly
compared against COSTS_N_INSNS (2). This would lead to
default_noce_conversion_profitable_p () rejecting all but the most
contrived of sequences.
This patch temporarily initializes the original costs by counting
adding costs for all sets inside the then_bb.
gcc/ChangeLog:
* ifcvt.cc (bb_ok_for_noce_convert_multiple_sets): Estimate insns costs.
(noce_process_if_block): Use potential costs.
Diffstat (limited to 'gcc/fortran')
0 files changed, 0 insertions, 0 deletions