r256052 - in /trunk/gcc: ChangeLog expr.c tests...

[jakub@gcc.gnu.org]

Author: jakub
Date: Sun Dec 31 23:51:14 2017
New Revision: 256052

URL: https://gcc.gnu.org/viewcvs?rev=256052&root=gcc&view=rev
Log:
	PR middle-end/83609
	* expr.c (expand_assignment): Fix up a typo in simplify_gen_subreg
	last argument when extracting from CONCAT.  If either from_real or
	from_imag is NULL, use expansion through memory.  If result is not
	a CONCAT and simplify_gen_subreg fails, try to simplify_gen_subreg
	the parts directly to inner mode, if even that fails, use expansion
	through memory.

	* gcc.dg/pr83609.c: New test.
	* g++.dg/opt/pr83609.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/opt/pr83609.C
    trunk/gcc/testsuite/gcc.dg/pr83609.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/expr.c
    trunk/gcc/testsuite/ChangeLog