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2010 Jan 04
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[LLVMdev] change type allocoted register
Hi;
i am using llvm backend on x86 arch.
My app ABI requires float2 (v2f32) to be passes as parameter and return in XMM0 register.
Currently LLVM handles v2f32 using MMX register MM0.
i wonder what changes do i need to do in LLVM to support that change; manipulating v2f32 (float2) using XMM and not MMX ?
one place i identifies where a change needs to be done is X86CallingConv.td where it