r234833 - in /trunk/gcc: ChangeLog fwprop.c tes...

[jakub@gcc.gnu.org]

Author: jakub
Date: Fri Apr  8 17:21:17 2016
New Revision: 234833

URL: https://gcc.gnu.org/viewcvs?rev=234833&root=gcc&view=rev
Log:
	PR rtl-optimization/70574
	* fwprop.c (forward_propagate_and_simplify): Don't add
	REG_EQUAL note if DF_REF_REG (use) is a paradoxical subreg.
	(try_fwprop_subst): Don't add REG_EQUAL note if there are any
	paradoxical subregs within *loc.

	* gcc.target/i386/avx2-pr70574.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/avx2-pr70574.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fwprop.c
    trunk/gcc/testsuite/ChangeLog