r126545 - in /trunk/gcc: ChangeLog Makefile.in ...

[ebotcazou@gcc.gnu.org]

Author: ebotcazou
Date: Wed Jul 11 09:43:25 2007
New Revision: 126545

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=126545
Log:
	PR tree-optimization/32589
	* doc/tree-ssa.texi (Rough GIMPLE Grammar): Add missing rule.
	* tree-gimple.c (is_gimple_min_invariant): Clarify head comment.
	* tree-ssa-propagate.c (valid_gimple_expression_p): New
	predicate, extracted from...
	(set_rhs): ...here.  Call it for the expression on entry.
	* tree-ssa-propagate.h (valid_gimple_expression_p): Declare.
	* tree-ssa-sccvn.c: Include tree-ssa-propagate.h.
	(simplify_binary_expression): Use valid_gimple_expression_p
	to validate the simplification.
	* Makefile.in (tree-ssa-sccvn.o): Depends on tree-ssa-propagate.h.


Added:
    trunk/gcc/testsuite/gnat.dg/invariant_index.adb
    trunk/gcc/testsuite/gnat.dg/invariant_index.ads
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/Makefile.in
    trunk/gcc/doc/tree-ssa.texi
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-gimple.c
    trunk/gcc/tree-ssa-propagate.c
    trunk/gcc/tree-ssa-propagate.h
    trunk/gcc/tree-ssa-sccvn.c