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Diffstat (limited to 'gcc/tree-ssa-forwprop.c')
| -rw-r--r-- | gcc/tree-ssa-forwprop.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/tree-ssa-forwprop.c b/gcc/tree-ssa-forwprop.c index 5aec33415d4..87795a28223 100644 --- a/gcc/tree-ssa-forwprop.c +++ b/gcc/tree-ssa-forwprop.c @@ -831,7 +831,9 @@ forward_propagate_addr_expr_1 (tree name, tree def_rhs, && !TYPE_VOLATILE (TREE_TYPE (rhs)) && !TYPE_VOLATILE (TREE_TYPE (TREE_OPERAND (def_rhs, 0))) && operand_equal_p (TYPE_SIZE (TREE_TYPE (rhs)), - TYPE_SIZE (TREE_TYPE (TREE_OPERAND (def_rhs, 0))), 0)) + TYPE_SIZE (TREE_TYPE (TREE_OPERAND (def_rhs, 0))), 0) + /* Make sure we only do TBAA compatible replacements. */ + && get_alias_set (TREE_OPERAND (def_rhs, 0)) == get_alias_set (rhs)) { tree def_rhs_base, new_rhs = unshare_expr (TREE_OPERAND (def_rhs, 0)); new_rhs = fold_build1 (VIEW_CONVERT_EXPR, TREE_TYPE (rhs), new_rhs); |