rs6000.c: Add include of ssa-propagate.h for update_call_from_tree().

rs6000.c: Add include of ssa-propagate.h for update_call_from_tree().

[gcc]

2017-06-23  Will Schmidt  <will_schmidt@vnet.ibm.com>

	* config/rs6000/rs6000.c: Add include of ssa-propagate.h for
	update_call_from_tree().  (rs6000_gimple_fold_builtin): Add
	handling for early expansion of vector shifts (sl,sr,sra,rl).
	(builtin_function_type): Add vector shift right instructions
	to the unsigned argument list.

[gcc/testsuite]

2017-06-23  Will Schmidt  <will_schmidt@vnet.ibm.com>

	* gcc.target/powerpc/fold-vec-shift-char.c: New.
	* gcc.target/powerpc/fold-vec-shift-int.c: New.
	* gcc.target/powerpc/fold-vec-shift-longlong.c: New.
	* gcc.target/powerpc/fold-vec-shift-short.c: New.
	* gcc.target/powerpc/fold-vec-shift-left.c: New.
	* gcc.target/powerpc/fold-vec-shift-left-fwrapv.c: New.
	* gcc.target/powerpc/fold-vec-shift-left-longlong-fwrapv.c: New.
	* gcc.target/powerpc/fold-vec-shift-left-longlong.c: New.

From-SVN: r249591