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4 Commits

Author SHA1 Message Date
Evan Cheng
c8674dcfd0 Prefer movlhps over punpcklqdq, etc. in more cases. 
llvm-svn: 56627
 2008-09-25 23:35:16 +00:00
Evan Cheng
7ff000c175 Add nounwind. 
llvm-svn: 50837
 2008-05-07 22:59:08 +00:00
Chris Lattner
24031c9426 make this test harder 
llvm-svn: 48061
 2008-03-09 00:30:06 +00:00
Chris Lattner
7173d3bd70 Teach SD some vector identities, allowing us to compile vec_set-9 into: 
_test3:
	movd	%rdi, %xmm1
	#IMPLICIT_DEF %xmm0
	punpcklqdq	%xmm1, %xmm0
	ret

instead of:

_test3:
	#IMPLICIT_DEF %rax
	movd	%rax, %xmm0
	movd	%rdi, %xmm1
	punpcklqdq	%xmm1, %xmm0
	ret

This is still not ideal.  There is no reason to two xmm regs.

llvm-svn: 48058
 2008-03-08 23:43:36 +00:00