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| author | Eric Botcazou <ebotcazou@adacore.com> | 2020-10-23 09:51:46 +0200 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@adacore.com> | 2020-10-23 09:58:33 +0200 |
| commit | 5f966d689710cbb03a0592504102119ab99978d4 (patch) | |
| tree | f796ec4c2480a6456aaeee7fc8ca08a3db785f5b /gcc/ada/csets.adb | |
| parent | 98161c248c88f873bbffba23664c540f551d89d5 (diff) | |
| download | gcc-5f966d689710cbb03a0592504102119ab99978d4.zip gcc-5f966d689710cbb03a0592504102119ab99978d4.tar.gz gcc-5f966d689710cbb03a0592504102119ab99978d4.tar.bz2 | |
Do not use doloop pattern with pragma Unroll
This fixes the following Ada failure on 64-bit PowerPC:
-FAIL: gnat.dg/unroll4.adb scan-rtl-dump-times loop2_unroll "optimized:
loop unrolled 7 times" 2
The IVOPTS pass detects a doloop pattern and consequently discombobulates
the loop sufficiently as to make it hard for the RTL unrolling pass to
compute the best number of iterations.
gcc/ChangeLog:
* tree-ssa-loop-ivopts.c (analyze_and_mark_doloop_use): Bail out if
the loop is subject to a pragma Unroll with no specific count.
Diffstat (limited to 'gcc/ada/csets.adb')
0 files changed, 0 insertions, 0 deletions