Hi,

The slsr-*.c testsuite failures are due to not matching widening add
(or multiply-add) in AARCH64.
The LP64 targets generates WIDEN_MULT_PLUS_EXPR which is correct and
even better code generation will be produced. However, the testcase
expects +OP2 in these cases and hence FAIL's.

Please find attached the patch that checks "+ OP2" as earlier OR 
", OP2>" as produced with "WIDEN_MULT_PLUS_EXPR <1(D), 4, 12>" in LP64
targets that use a widening multiplication. 

Tested on aarch64-thunder-elf, x86_64-elf, arm-none-eabi and rx-elf.

Please review the patch and let me know if there should be any further
modifications in pattern check.

Regards,
Naveen

2013-01-16   Naveen H.S  <Naveen.Hurugalawadi@caviumnetworks.com>

gcc/testsuite/
	* gcc.dg/tree-ssa/slsr-1.c: Allow widening multiplications.
	* gcc.dg/tree-ssa/slsr-2.c: Likewise.
	* gcc.dg/tree-ssa/slsr-3.c: Likewise.