r259921 - in /trunk/gcc: ChangeLog fold-const-c...

[jakub@gcc.gnu.org]

Author: jakub
Date: Fri May  4 07:19:45 2018
New Revision: 259921

URL: https://gcc.gnu.org/viewcvs?rev=259921&root=gcc&view=rev
Log:
	PR libstdc++/85466
	* real.h (real_nextafter): Declare.
	* real.c (real_nextafter): New function.
	* fold-const-call.c (fold_const_nextafter): New function.
	(fold_const_call_sss): Call it for CASE_CFN_NEXTAFTER and
	CASE_CFN_NEXTTOWARD.
	(fold_const_call_1): For CASE_CFN_NEXTTOWARD call fold_const_call_sss
	even when arg1_mode is different from arg0_mode.

	* gcc.dg/nextafter-1.c: New test.
	* gcc.dg/nextafter-2.c: New test.
	* gcc.dg/nextafter-3.c: New test.
	* gcc.dg/nextafter-4.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/nextafter-1.c
    trunk/gcc/testsuite/gcc.dg/nextafter-2.c
    trunk/gcc/testsuite/gcc.dg/nextafter-3.c
    trunk/gcc/testsuite/gcc.dg/nextafter-4.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fold-const-call.c
    trunk/gcc/real.c
    trunk/gcc/real.h
    trunk/gcc/testsuite/ChangeLog