r245917 - in /trunk/gcc: ChangeLog config/s390/...

[krebbel@gcc.gnu.org]

Author: krebbel
Date: Mon Mar  6 12:40:19 2017
New Revision: 245917

URL: https://gcc.gnu.org/viewcvs?rev=245917&root=gcc&view=rev
Log:
S/390: Change 2-byte NOPs

The following patch changes "nopr %r7" to "nopr %r0" which is
advantageous from a hardware perspective. It will only be emitted for
hotpatching and should not impact normal code.

gcc/ChangeLog:

2017-03-06  Robin Dapp  <rdapp@linux.vnet.ibm.com>

	* config/s390/s390.c (s390_asm_output_function_label): Use nopr %r0.
	* config/s390/s390.md: Likewise.

gcc/testsuite/ChangeLog:

2017-03-06  Robin Dapp  <rdapp@linux.vnet.ibm.com>

	* gcc.target/s390/hotpatch-1.c: Check for nopr %r0.
	* gcc.target/s390/hotpatch-10.c: Likewise.
	* gcc.target/s390/hotpatch-11.c: Likewise.
	* gcc.target/s390/hotpatch-12.c: Likewise.
	* gcc.target/s390/hotpatch-13.c: Likewise.
	* gcc.target/s390/hotpatch-14.c: Likewise.
	* gcc.target/s390/hotpatch-15.c: Likewise.
	* gcc.target/s390/hotpatch-16.c: Likewise.
	* gcc.target/s390/hotpatch-17.c: Likewise.
	* gcc.target/s390/hotpatch-18.c: Likewise.
	* gcc.target/s390/hotpatch-19.c: Likewise.
	* gcc.target/s390/hotpatch-2.c: Likewise.
	* gcc.target/s390/hotpatch-26.c: Likewise.
	* gcc.target/s390/hotpatch-27.c: Likewise.
	* gcc.target/s390/hotpatch-28.c: Likewise.
	* gcc.target/s390/hotpatch-3.c: Likewise.
	* gcc.target/s390/hotpatch-4.c: Likewise.
	* gcc.target/s390/hotpatch-5.c: Likewise.
	* gcc.target/s390/hotpatch-6.c: Likewise.
	* gcc.target/s390/hotpatch-7.c: Likewise.
	* gcc.target/s390/hotpatch-8.c: Likewise.
	* gcc.target/s390/hotpatch-9.c: Likewise.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/s390/s390.c
    trunk/gcc/config/s390/s390.md
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-1.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-10.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-11.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-12.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-13.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-14.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-15.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-16.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-17.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-18.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-19.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-2.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-26.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-27.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-28.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-3.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-4.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-5.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-6.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-7.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-8.c
    trunk/gcc/testsuite/gcc.target/s390/hotpatch-9.c