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| author | Richard Biener <rguenther@suse.de> | 2021-03-10 11:57:21 +0100 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2021-03-10 13:13:51 +0100 |
| commit | 6ceb712e2699a493da544b1755f6f73d62930f9b (patch) | |
| tree | dd644d7adad5218cb7716ac4fec701133acd3404 | |
| parent | 47403a0eefac52636db768dc46c3c88a2cd4b28e (diff) | |
| download | gcc-6ceb712e2699a493da544b1755f6f73d62930f9b.zip gcc-6ceb712e2699a493da544b1755f6f73d62930f9b.tar.gz gcc-6ceb712e2699a493da544b1755f6f73d62930f9b.tar.bz2 | |
tree-optimization/99510 - fix type reuse of build_aligned_type
The fix for PR94775 added more strict checking for type reuse
to check_aligned_type, specifically matching TYPE_USER_ALIGN.
But then build_aligned_type sets TYPE_USER_ALIGN on the built
variant so if the type we build an aligned variant for does not
have TYPE_USER_ALIGN we'll never re-use the newly created aligned
variant. This results in ~35000 identical variants being created
for polyhedron doduc.
The following instead checks that the candidate has TYPE_USER_ALIGN set.
2021-03-10 Richard Biener <rguenther@suse.de>
PR tree-optimization/99510
* tree.c (check_aligned_type): Check that the candidate
has TYPE_USER_ALIGN set instead of matching with the
original type.
| -rw-r--r-- | gcc/tree.c | 4 |
1 files changed, 3 insertions, 1 deletions
@@ -6609,7 +6609,9 @@ check_aligned_type (const_tree cand, const_tree base, unsigned int align) && TYPE_CONTEXT (cand) == TYPE_CONTEXT (base) /* Check alignment. */ && TYPE_ALIGN (cand) == align - && TYPE_USER_ALIGN (cand) == TYPE_USER_ALIGN (base) + /* Check this is a user-aligned type as build_aligned_type + would create. */ + && TYPE_USER_ALIGN (cand) && attribute_list_equal (TYPE_ATTRIBUTES (cand), TYPE_ATTRIBUTES (base)) && check_lang_type (cand, base)); |