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| author | Jakub Jelinek <jakub@redhat.com> | 2020-02-14 17:36:00 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2020-02-14 17:36:00 +0100 |
| commit | 519a33f954fd71cb8b74053e168e23a1cb00d30b (patch) | |
| tree | 219e1ea1d630741772019ad3bacd0fbfe168aa21 /gcc/cp/class.c | |
| parent | 515dd04260c6049110d7624eaf1b276929dcd9af (diff) | |
| download | gcc-519a33f954fd71cb8b74053e168e23a1cb00d30b.zip gcc-519a33f954fd71cb8b74053e168e23a1cb00d30b.tar.gz gcc-519a33f954fd71cb8b74053e168e23a1cb00d30b.tar.bz2 | |
c++: Fix thinko in enum_min_precision [PR61414]
When backporting the PR61414 fix to 8.4, I've noticed that the caching
of prec is actually broken, as it would fail to actually store the computed
precision into the hash_map's value and so next time we'd think the enum needs
0 bits.
2020-02-14 Jakub Jelinek <jakub@redhat.com>
PR c++/61414
* class.c (enum_min_precision): Change prec type from int to int &.
* g++.dg/cpp0x/enum39.C: New test.
Diffstat (limited to 'gcc/cp/class.c')
| -rw-r--r-- | gcc/cp/class.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/cp/class.c b/gcc/cp/class.c index f9e46ca..a1fd1aa 100644 --- a/gcc/cp/class.c +++ b/gcc/cp/class.c @@ -3289,7 +3289,7 @@ enum_min_precision (tree type) enum_to_min_precision = hash_map<tree, int>::create_ggc (37); bool existed; - int prec = enum_to_min_precision->get_or_insert (type, &existed); + int &prec = enum_to_min_precision->get_or_insert (type, &existed); if (existed) return prec; |