re PR target/8322 (SSE2 intrinsics broken?)

re PR target/8322 (SSE2 intrinsics broken?)

	* genopinit.c (optabs): Add addc_optab.
	* ifcvt.c (noce_try_store_flag): Rename to ...
	(noce_try_addcc): ... this one; handle generic conditional increment.
	(noce_process_if_block): Update noce_try_addcc call.
	* optabs.c (emit_conditional_add): New.
	(init_obtabs): Initialize addc_optab.
	* optabs.h (optab_index): Add OTI_addcc.
	(addcc_optab): New macro.
	* md.texi: Document addMcc

	PR target/8322
	* i386.c (ix86_init_mmx_sse_builtins): Constify arguments of loads.
	* xmmintrin.h (_mm_load*_si128. _mm_store*_si128): Add casts.
	* xmmintrin.h (_mm_load*_si128. _mm_store*_si128): Add casts.

	* reload1.c (delete_output_reload): Avoid repeated attempts
	to delete insn.

From-SVN: r61019