diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2011-06-22 12:46:36 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2011-06-22 12:46:36 +0200 |
| commit | 36dc1a88ff11de41ed1b2a313f28ad12cd3c7bd3 (patch) | |
| tree | 5db992248a216e242d2e9eff0ad5aea9a9f3ebdd /gcc/tree-ssa-dce.c | |
| parent | 41cd495729ac43083ce23687b55c42f3a6c298d1 (diff) | |
| download | gcc-36dc1a88ff11de41ed1b2a313f28ad12cd3c7bd3.tar.gz | |
tree-ssa-ccp.c (evaluate_stmt): Try bitwise tracking for builtin calls even if likelyvalue is not CONSTANT.
* 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.
From-SVN: r175290
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 |