re PR tree-optimization/77848 (Gimple if-conversion results in redundant comparisons)

re PR tree-optimization/77848 (Gimple if-conversion results in redundant comparisons)

[gcc]

2016-11-17  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
            Richard Biener  <rguenther@suse.de>

	PR tree-optimization/77848
	* tree-if-conv.c (tree_if_conversion): Always version loops unless
	the user specified -ftree-loop-if-convert.

[gcc/testsuite]

2016-11-17  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
            Richard Biener  <rguenther@suse.de>

	PR tree-optimization/77848
	* gfortran.dg/vect/pr77848.f: New test.

Co-Authored-By: Richard Biener <rguenther@suse.de>
From-SVN: r242550