[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.
From-SVN: r250936
