nir: use bitfield_insert instead of bfi in nir_lower_double_ops
NVIDIA hardware doesn't have an equivilant to bfi, but we do already have a lowering for bitfield_insert->bfi. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Jason Ekstrand <jason@jlekstrand.net> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5373>
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@ -49,7 +49,9 @@ set_exponent(nir_builder *b, nir_ssa_def *src, nir_ssa_def *exp)
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/* The exponent is bits 52-62, or 20-30 of the high word, so set the exponent
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* to 1023
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*/
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nir_ssa_def *new_hi = nir_bfi(b, nir_imm_int(b, 0x7ff00000), exp, hi);
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nir_ssa_def *new_hi = nir_bitfield_insert(b, hi, exp,
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nir_imm_int(b, 20),
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nir_imm_int(b, 11));
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/* recombine */
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return nir_pack_64_2x32_split(b, lo, new_hi);
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}
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