re PR rtl-optimization/34522 (inefficient code for long long multiply when only low bits are needed)

2008-03-12  Paolo Bonzini  <bonzini@gnu.org>

	PR tree-opt/35422
	* fold-const.c (fold_unary) <NOP_EXPR>: Distribute a narrowing
	conversion to the operands of a multiplication.

testsuite:
2008-03-12  Paolo Bonzini  <bonzini@gnu.org>

	PR tree-opt/35422
	* gcc.dg/vect/slp-7.c: Change target keywords required for vectorizing
	third loop.
	* gcc.target/i386/pr35422.c: New.

From-SVN: r133144