------- Comment #5 from christophe at saout dot de 2008-08-14 00:08 -------
Created an attachment (id=16068)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16068&action=view)
Remove broken alternatives using movlps for vec_concatv2di(_rex) insn
causes gcc to emit the following valid sequence instead
(which is the sequence it always produced when I tried to build a standalone
test case):
movq 56(%rsp), %rax
addq $8, %rax
movq 56(%rsp), %xmm1
movd %rax, %xmm2
punpcklqdq %xmm2, %xmm1
movdqa %xmm1, %xmm0
BTW: that last move seems redundant...
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37101
