re PR target/68805 (ICE while var-tracking in simplify_binary_operation_1 with -g...

re PR target/68805 (ICE while var-tracking in simplify_binary_operation_1 with -g and -mvsx-timode)

[gcc]
2015-12-15  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/68805
	* config/rs6000/rs6000.c (rs6000_gen_le_vsx_permute): Use ROTATE
	instead of VEC_SELECT for TImode.

	* config/rs6000/vsx.md (VSX_LE): Move TImode from VSX_LE to
	VSX_LE_128, so that we use ROTATE to swap the 64-bit words instead
	of using VEC_SELECT.
	(VSX_LE_128): Likewise.
	(define_peephole2): Add peephole to eliminate double xxpermdi when
	copying TImode.

[gcc/testsuite]
2015-12-15  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/68805
	* gcc.target/powerpc/pr68805.c: New test.

From-SVN: r231732