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| author | Alexandre Oliva <aoliva@redhat.com> | 2010-09-08 21:53:48 +0000 |
|---|---|---|
| committer | Alexandre Oliva <aoliva@gcc.gnu.org> | 2010-09-08 21:53:48 +0000 |
| commit | 359bea1da45819206bf0a9132362ee6e0f181282 (patch) | |
| tree | 51a704702b2ef87537d068e5ea5a55d72cb03512 /gcc/fold-const.c | |
| parent | 0a7822a32b830084f37e78545047ce0d4e5cd486 (diff) | |
| download | gcc-359bea1da45819206bf0a9132362ee6e0f181282.zip gcc-359bea1da45819206bf0a9132362ee6e0f181282.tar.gz gcc-359bea1da45819206bf0a9132362ee6e0f181282.tar.bz2 | |
re PR debug/45419 (-fcompare-debug failure at -O3)
PR debug/45419
PR debug/45408
* tree-pretty-print.c (dump_generic_node): Disregard top-level
qualifiers in otherwise equal MEM_REF pointer types.
* fold-const.c (operand_equal_p): Compare pointer type of MEM_REFs.
* tree.c (iterative_hash_expr): Hash the pointer type of MEM_REFs.
From-SVN: r164031
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index baac13f..c941703 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -2591,14 +2591,17 @@ operand_equal_p (const_tree arg0, const_tree arg1, unsigned int flags) return OP_SAME (0); case MEM_REF: - /* Require equal access sizes. We can have incomplete types - for array references of variable-sized arrays from the - Fortran frontent though. */ + /* Require equal access sizes, and similar pointer types. + We can have incomplete types for array references of + variable-sized arrays from the Fortran frontent + though. */ return ((TYPE_SIZE (TREE_TYPE (arg0)) == TYPE_SIZE (TREE_TYPE (arg1)) || (TYPE_SIZE (TREE_TYPE (arg0)) && TYPE_SIZE (TREE_TYPE (arg1)) && operand_equal_p (TYPE_SIZE (TREE_TYPE (arg0)), TYPE_SIZE (TREE_TYPE (arg1)), flags))) + && (TYPE_MAIN_VARIANT (TREE_TYPE (TREE_OPERAND (arg0, 1))) + == TYPE_MAIN_VARIANT (TREE_TYPE (TREE_OPERAND (arg1, 1)))) && OP_SAME (0) && OP_SAME (1)); case ARRAY_REF: |