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r243026 - in /trunk/gcc: ChangeLog testsuite/Ch...


Author: amker
Date: Wed Nov 30 14:41:09 2016
New Revision: 243026

URL: https://gcc.gnu.org/viewcvs?rev=243026&root=gcc&view=rev
Log:
	PR tree-optimization/78574
	* tree-ssa-loop-ivopts.c (find_deriving_biv_for_expr): Skip loop
	header PHI that doesn't define biv.
	gcc/testsuite
	PR tree-optimization/78574
	* gcc.c-torture/compile/pr78574.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/pr78574.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-loop-ivopts.c


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