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Revert "intel: Simplify the half-float packing in image load/store lowering."

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This reverts commit 06fbcd2cd5.
nir_pack_half_2x16_split *isn't* vectorizable, it's 1-component only, thus
why we had this split-scalar code in the first place.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Eric Anholt 2018-12-13 11:25:08 -08:00
parent c2c44dba7a
commit 3a417a044e
1 changed files with 8 additions and 2 deletions
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10
src/intel/compiler/brw_nir_lower_image_load_store.c
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@ -544,8 +544,14 @@ convert_color_for_store(nir_builder *b, const struct gen_device_info *devinfo,
break;
case ISL_SFLOAT:
if (image.bits[0] == 16)
color = nir_pack_half_2x16_split(b, color, nir_imm_float(b, 0));
if (image.bits[0] == 16) {
nir_ssa_def *f16comps[4];
for (unsigned i = 0; i < image.chans; i++) {
f16comps[i] = nir_pack_half_2x16_split(b, nir_channel(b, color, i),
nir_imm_float(b, 0));
}
color = nir_vec(b, f16comps, image.chans);
}
break;
case ISL_UINT: