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r124127 - in /branches/gcc-4_2-branch/gcc: Chan...


Author: ian
Date: Tue Apr 24 22:54:22 2007
New Revision: 124127

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=124127
Log:
	PR tree-optimization/31602
	* tree-ssa-loop-ch.c (copy_loop_headers): Set TREE_NO_WARNING for
	conditionals in the copied loop header.
	* tree-cfg.c (fold_cond_expr_cond): Don't issue undefined overflow
	warnings if TREE_NO_WARNING is set.
	* doc/invoke.texi (Warning Options): Clarify that
	-Wstrict-overflow does not warn about loops.

Modified:
    branches/gcc-4_2-branch/gcc/ChangeLog
    branches/gcc-4_2-branch/gcc/doc/invoke.texi
    branches/gcc-4_2-branch/gcc/tree-cfg.c
    branches/gcc-4_2-branch/gcc/tree-ssa-loop-ch.c


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