r250936 - in /trunk/gcc: ChangeLog config/rs600...

[meissner at gcc dot gnu dot org]

Author: meissner
Date: Mon Aug  7 23:51:27 2017
New Revision: 250936

URL: https://gcc.gnu.org/viewcvs?rev=250936&root=gcc&view=rev
Log:
[gcc]
2017-08-07  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/81593
	* config/rs6000/vsx.md (vsx_concat_<mode>, VSX_D): Cleanup
	constraints since the -mupper-regs-* switches have been
	eliminated.
	(vsx_concat_<mode>_1): New combiner insns to recognize inserting
	into a vector from a double word element that was extracted from
	another vector, and eliminate extra XXPERMDI instructions.
	(vsx_concat_<mode>_2): Likewise.
	(vsx_concat_<mode>_3): Likewise.
	(vsx_set_<mode>, VSX_D): Rewrite vector set in terms of vector
	concat to allow optimizing inserts from previous extracts.

[gcc/testsuite]
2017-08-07  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/81593
	* gcc.target/powerpc/vec-setup.h: New tests to test various
	combinations of setting up vectors of 2 double word elements.
	* gcc.target/powerpc/vec-setup-long.c: Likewise.
	* gcc.target/powerpc/vec-setup-double.c: Likewise.
	* gcc.target/powerpc/vec-setup-be-long.c: Likewise.
	* gcc.target/powerpc/vec-setup-be-double.c: Likewise.
	* gcc.target/powerpc/vsx-extract-6.c: New tests for optimzing
	vector inserts from vector extracts.
	* gcc.target/powerpc/vsx-extract-7.c: Likewise.


Added:
    trunk/gcc/testsuite/gcc.target/powerpc/vec-setup-be-double.c
    trunk/gcc/testsuite/gcc.target/powerpc/vec-setup-be-long.c
    trunk/gcc/testsuite/gcc.target/powerpc/vec-setup-double.c
    trunk/gcc/testsuite/gcc.target/powerpc/vec-setup-long.c
    trunk/gcc/testsuite/gcc.target/powerpc/vec-setup.h
    trunk/gcc/testsuite/gcc.target/powerpc/vsx-extract-6.c
    trunk/gcc/testsuite/gcc.target/powerpc/vsx-extract-7.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/rs6000/vsx.md
    trunk/gcc/testsuite/ChangeLog