On Tue, 4 Dec 2012, Marc Glisse wrote:

> Do you agree?

Like this ? (only tested on the new testcases, and then I'd need to ask Eric
his opinion)

2012-12-04  Marc Glisse  <marc.glisse@inria.fr>

 	PR target/54855
gcc/
 	* simplify-rtx.c (simplify_binary_operation_1) <VEC_CONCAT>: Replace
 	with VEC_MERGE.
 	* config/i386/sse.md (<sse>_vm<plusminus_insn><mode>3): Rewrite
 	pattern.
 	* config/i386/i386-builtin-types.def: New function types.
 	* config/i386/i386.c (ix86_expand_args_builtin): Likewise.
 	(bdesc_args) <__builtin_ia32_addss, __builtin_ia32_subss,
 	__builtin_ia32_addsd, __builtin_ia32_subsd>: Change prototype.
 	* config/i386/xmmintrin.h: Adapt to new builtin prototype.
 	* config/i386/emmintrin.h: Likewise.
 	* doc/extend.texi (X86 Built-in Functions): Document changed prototype.


testsuite/
 	* gcc.target/i386/pr54855-1.c: New testcase.
 	* gcc.target/i386/pr54855-2.c: New testcase.


-- 
Marc Glisse