r278934 - in /trunk/gcc: ChangeLog gimple-fold....

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Tue Dec  3 11:59:13 2019
New Revision: 278934

URL: https://gcc.gnu.org/viewcvs?rev=278934&root=gcc&view=rev
Log:
2019-12-03  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/92645
	* gimple-fold.c (gimple_fold_builtin_memory_op): Fold memcpy
	from or to a properly aligned register variable.

	* gcc.target/i386/pr92645-5.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr92645-5.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimple-fold.c
    trunk/gcc/testsuite/ChangeLog