Cast to unsigned short/char first for _mm_extract_epi16/_mm_extract_epi8.

Cast to unsigned short/char first for _mm_extract_epi16/_mm_extract_epi8.

gcc/

2010-08-20  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/45336
	* config/i386/emmintrin.h (_mm_extract_epi16): Cast to unsigned
	short first.

	* config/i386/smmintrin.h (_mm_extract_epi8): Cast to unsigned
	char first.

gcc/testsuite/

2010-08-20  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/45336
	* gcc.target/i386/pr45336-1.c: New.
	* gcc.target/i386/pr45336-2.c: Likewise.
	* gcc.target/i386/pr45336-3.c: Likewise.
	* gcc.target/i386/pr45336-4.c: Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@163421 138bc75d-0d04-0410-961f-82ee72b054a4