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| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2008-12-30 23:34:28 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2008-12-30 23:34:28 +0000 |
| commit | 0d051eceb3f8b8295a7679ac8c69067da4428b31 (patch) | |
| tree | ef224dc8658616e2502002396260db31312b7fa6 /gcc/tree-ssa-ccp.c | |
| parent | 5ddbd3d71c9376bb8d76abcf5aad8156bfeb2f80 (diff) | |
| download | gcc-0d051eceb3f8b8295a7679ac8c69067da4428b31.tar.gz | |
PR middle-end/38505
* tree-ssa-ccp.c (may_propagate_address_into_dereference): Return
false if ADDR's operand has incomplete type.
Revert:
2008-12-15 Jakub Jelinek <jakub@redhat.com>
PR middle-end/38505
* tree-ssa.c (useless_type_conversion_p_1): Return
false if inner_type is incomplete and outer_type is complete.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@142972 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-ccp.c')
| -rw-r--r-- | gcc/tree-ssa-ccp.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/tree-ssa-ccp.c b/gcc/tree-ssa-ccp.c index d68337fc402..d0fcf3937a7 100644 --- a/gcc/tree-ssa-ccp.c +++ b/gcc/tree-ssa-ccp.c @@ -860,6 +860,10 @@ may_propagate_address_into_dereference (tree addr, tree deref) gcc_assert (INDIRECT_REF_P (deref) && TREE_CODE (addr) == ADDR_EXPR); + /* Don't propagate if ADDR's operand has incomplete type. */ + if (!COMPLETE_TYPE_P (TREE_TYPE (TREE_OPERAND (addr, 0)))) + return false; + /* If the address is invariant then we do not need to preserve restrict qualifications. But we do need to preserve volatile qualifiers until we can annotate the folded dereference itself properly. */ |