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2012 Jan 04
1
[LLVMdev] How can I compile a c source file to use SSE2 Data Movement Instructions?
...bjc-runtime-has-weak -fobjc-fragile-abi
-fdiagnostics
show-option -fcolor-diagnostics -o test.s -x c test.c
.def _f;
.scl 2;
.type 32;
.endef
.text
.globl _f
.align 16, 0x90
_f: # @f
# BB#0:
movl $-800, %eax # imm = 0xFFFFFFFFFFFFFCE0
movsd _DA, %xmm0
.align 16, 0x90
LBB0_1: # =>This Inner Loop Header: Depth=1
movsd _X+800(%eax), %xmm1
mulsd %xmm0, %xmm1
movsd _Y+800(%eax), %xmm2
subsd %xmm1, %xmm2
movsd %xmm2, _Y+800(%eax)
addl $8, %eax
jne LBB0_1
# BB#2:
xorl %eax, %eax
ret
.data
.globl _DA...