r254643 - in /trunk/gcc: ChangeLog config/rs600...

[meissner@gcc.gnu.org]

Author: meissner
Date: Fri Nov 10 22:59:40 2017
New Revision: 254643

URL: https://gcc.gnu.org/viewcvs?rev=254643&root=gcc&view=rev
Log:
[gcc]
2017-11-10  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/rs6000.md (bswaphi2_reg): On ISA 3.0 systems,
	enable generating XXBRH if the value is in a vector register.
	(bswapsi2_reg): On ISA 3.0 systems, enable generating XXBRW if the
	value is in a vector register.
	(bswapdi2_reg): On ISA 3.0 systems, always use XXBRD to do
	register to register bswap64's instead of doing the GPR sequence
	used on previous machines.
	(bswapdi2_xxbrd): New insn.
	(bswapdi2_reg): Disallow on ISA 3.0.
	(register to register bswap64 splitter): Do not split the insn on
	ISA 3.0 systems that use XXBRD.

[gcc/testsuite]
2017-11-10  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* gcc.target/powerpc/p9-xxbr-3.c: New test.


Added:
    trunk/gcc/testsuite/gcc.target/powerpc/p9-xxbr-3.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/rs6000/rs6000.md
    trunk/gcc/testsuite/ChangeLog