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authorJakub Jelinek <jakub@redhat.com>2011-06-22 12:46:36 +0200
committerJakub Jelinek <jakub@gcc.gnu.org>2011-06-22 12:46:36 +0200
commit36dc1a88ff11de41ed1b2a313f28ad12cd3c7bd3 (patch)
tree5db992248a216e242d2e9eff0ad5aea9a9f3ebdd /libgcc/enable-execute-stack-empty.c
parent41cd495729ac43083ce23687b55c42f3a6c298d1 (diff)
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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 'libgcc/enable-execute-stack-empty.c')
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