simplify-rtx.c (simplify_unary_operation_1 <case TRUNCATE>): A truncate of a memory is just loading the low part of the memory.

2012-09-01  Andrew Pinski  <apinski@cavium.com>

	* simplify-rtx.c (simplify_unary_operation_1 <case TRUNCATE>):
	A truncate of a memory is just loading the low part of the memory.

2012-09-01  Andrew Pinski  <apinski@cavium.com>

        * gcc.target/mips/truncate-8.c: New testcase.

From-SVN: r190848