r278998 - in /trunk/gcc: ChangeLog match.pd tes...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Thu Dec  5 13:02:57 2019
New Revision: 278998

URL: https://gcc.gnu.org/viewcvs?rev=278998&root=gcc&view=rev
Log:
2019-12-05  Richard Biener  <rguenther@suse.de>

	PR middle-end/92818
	* tree-ssa-forwprop.c (simplify_vector_constructor): Improve
	heuristics on what don't care element to choose.
	* match.pd (VEC_PERM_EXPR -> BIT_INSERT_EXPR): Fix typo.

	* gcc.target/i386/pr92818.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr92818.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/match.pd
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-forwprop.c