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| author | Jakub Jelinek <jakub@redhat.com> | 2019-06-11 15:01:40 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2019-06-11 15:01:40 +0200 |
| commit | 5a5da48013f29c55bd9a4221ebc72104b80e4982 (patch) | |
| tree | 2bc3d382017ed835296e5947bcc18fc10ff41a26 /gcc/cp/init.c | |
| parent | 7ac9a201848f020a7803c5b3e20dc4768a992c40 (diff) | |
| download | gcc-5a5da48013f29c55bd9a4221ebc72104b80e4982.zip gcc-5a5da48013f29c55bd9a4221ebc72104b80e4982.tar.gz gcc-5a5da48013f29c55bd9a4221ebc72104b80e4982.tar.bz2 | |
re PR c++/90810 (Different intrinsics behavior on G++ 7.4 and G++ 8.3)
PR c++/90810
* init.c (constant_value_1): Handle VECTOR_CST DECL_INITIAL for
!DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P decls like CONSTRUCTOR.
* g++.dg/ext/vector37.C: New test.
From-SVN: r272152
Diffstat (limited to 'gcc/cp/init.c')
| -rw-r--r-- | gcc/cp/init.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/cp/init.c b/gcc/cp/init.c index b206263..e962113 100644 --- a/gcc/cp/init.c +++ b/gcc/cp/init.c @@ -2339,8 +2339,11 @@ constant_value_1 (tree decl, bool strict_p, bool return_aggregate_cst_ok_p) || TREE_CODE (init) == STRING_CST))) break; /* Don't return a CONSTRUCTOR for a variable with partial run-time - initialization, since it doesn't represent the entire value. */ - if (TREE_CODE (init) == CONSTRUCTOR + initialization, since it doesn't represent the entire value. + Similarly for VECTOR_CSTs created by cp_folding those + CONSTRUCTORs. */ + if ((TREE_CODE (init) == CONSTRUCTOR + || TREE_CODE (init) == VECTOR_CST) && !DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (decl)) break; /* If the variable has a dynamic initializer, don't use its |