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| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-06-22 10:46:36 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-06-22 10:46:36 +0000 |
| commit | 939514e944196cea250a729607a8ee718957605e (patch) | |
| tree | 5db992248a216e242d2e9eff0ad5aea9a9f3ebdd /gcc/tree-ssa-dce.c | |
| parent | d771c9b2f13fe03b18babb98e060dadb4a0c6e1e (diff) | |
| download | gcc-939514e944196cea250a729607a8ee718957605e.tar.gz | |
* tree-ssa-ccp.c (evaluate_stmt): Try bitwise tracking for
builtin calls even if likelyvalue is not CONSTANT.
Handle BUILT_IN_STRDUP and BUILT_IN_STRNDUP like BUILT_IN_MALLOC.
Return get_value_for_expr of first operand
for BUILT_IN_{MEM{CPY,MOVE,SET},STR{,N}CPY}{,_CHK}.
* tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Handle
BUILT_IN_{MEM{{,P}CPY,MOVE,SET},STR{,N}C{PY,AT},STPCPY}_CHK like
their non-checking counterparts.
(call_may_clobber_ref_p_1): Likewise.
(stmt_kills_ref_p_1): Handle BUILT_IN_MEM{{,P}CPY,MOVE,SET}_CHK
like their non-checking counterparts.
* tree-ssa-structalias.c (find_func_aliases_for_builtin_call):
Handle BUILT_IN_{MEM{{,P}CPY,MOVE,SET},STR{,N}C{PY,AT},STPCPY}_CHK
like their non-checking counterparts.
(find_func_clobbers): Likewise.
* tree-ssa-dce.c (propagate_necessity): Handle BUILT_IN_MEMSET_CHK
like BUILT_IN_MEMSET and BUILT_IN_CALLOC like BUILT_IN_MALLOC.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@175290 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-dce.c')
| -rw-r--r-- | gcc/tree-ssa-dce.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/tree-ssa-dce.c b/gcc/tree-ssa-dce.c index 6900ee77e86..a088ef2a56f 100644 --- a/gcc/tree-ssa-dce.c +++ b/gcc/tree-ssa-dce.c @@ -831,7 +831,9 @@ propagate_necessity (struct edge_list *el) if (callee != NULL_TREE && DECL_BUILT_IN_CLASS (callee) == BUILT_IN_NORMAL && (DECL_FUNCTION_CODE (callee) == BUILT_IN_MEMSET + || DECL_FUNCTION_CODE (callee) == BUILT_IN_MEMSET_CHK || DECL_FUNCTION_CODE (callee) == BUILT_IN_MALLOC + || DECL_FUNCTION_CODE (callee) == BUILT_IN_CALLOC || DECL_FUNCTION_CODE (callee) == BUILT_IN_FREE || DECL_FUNCTION_CODE (callee) == BUILT_IN_ALLOCA || DECL_FUNCTION_CODE (callee) == BUILT_IN_STACK_SAVE |