diff options
| author | Richard Biener <rguenther@suse.de> | 2024-09-19 14:58:18 +0200 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2024-09-19 16:26:28 +0200 |
| commit | 5b5a36b122e1205449f1512bf39521b669e713ef (patch) | |
| tree | d0e5392098ece9d8c7f47ba7bd8e2aba2959be97 /gcc/diagnostic-format-json.cc | |
| parent | 77bd23a3e247555ba427d01af8e5713934be8d5b (diff) | |
| download | gcc-5b5a36b122e1205449f1512bf39521b669e713ef.zip gcc-5b5a36b122e1205449f1512bf39521b669e713ef.tar.gz gcc-5b5a36b122e1205449f1512bf39521b669e713ef.tar.bz2 | |
tree-optimization/116768 - wrong dependence analysis
The following reverts a bogus fix done for PR101009 and instead makes
sure we get into the same_access_functions () case when computing
the distance vector for g[1] and g[1] where the constants ended up
having different types. The generic code doesn't seem to handle
loop invariant dependences. The special case gets us both
( 0 ) and ( 1 ) as distance vectors while formerly we got ( 1 ),
which the PR101009 fix changed to ( 0 ) with bad effects on other
cases as shown in this PR.
PR tree-optimization/116768
* tree-data-ref.cc (build_classic_dist_vector_1): Revert
PR101009 change.
* tree-chrec.cc (eq_evolutions_p): Make sure (sizetype)1
and (int)1 compare equal.
* gcc.dg/torture/pr116768.c: New testcase.
Diffstat (limited to 'gcc/diagnostic-format-json.cc')
0 files changed, 0 insertions, 0 deletions