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drcbex64: optimize FMOV (nw)

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This commit is contained in:
Ville Linde 2016-04-14 19:44:23 +03:00
parent 8a9e872224
commit bfbd0443fe
1 changed files with 18 additions and 4 deletions
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22
src/devices/cpu/drcbex64.cpp
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@ -5952,15 +5952,29 @@ void drcbe_x64::op_fmov(x86code *&dst, const instruction &inst)
// 32-bit form
if (inst.size() == 4)
{
emit_movss_r128_p32(dst, dstreg, srcp); // movss dstreg,srcp
emit_movss_p32_r128(dst, dstp, dstreg); // movss dstp,dstreg
if (srcp.is_float_register())
{
emit_movss_p32_r128(dst, dstp, srcp.ireg()); // movss dstp,srcp
}
else
{
emit_movss_r128_p32(dst, dstreg, srcp); // movss dstreg,srcp
emit_movss_p32_r128(dst, dstp, dstreg); // movss dstp,dstreg
}
}
// 64-bit form
else if (inst.size() == 8)
{
emit_movsd_r128_p64(dst, dstreg, srcp); // movsd dstreg,srcp
emit_movsd_p64_r128(dst, dstp, dstreg); // movsd dstp,dstreg
if (srcp.is_float_register())
{
emit_movsd_p64_r128(dst, dstp, srcp.ireg()); // movsd dstp,srcp
}
else
{
emit_movsd_r128_p64(dst, dstreg, srcp); // movsd dstreg,srcp
emit_movsd_p64_r128(dst, dstp, dstreg); // movsd dstp,dstreg
}
}
// resolve the jump