5de3cbbb2e
The prog_to_nir->NIR-to-TGSI change ended up causing regressions on r300,
and svga against r300-class hardware, because nir_lower_uniforms_to_ubo()
introduced shifts that nir_lower_ubo_vec4() tried to reverse, but that NIR
couldn't prove are no-ops (since shifting up and back down may drop bits),
and the hardware can't do the integer ops.
Instead, make it so that nir_lower_uniforms_to_ubo can generate
nir_intrinsic_load_ubo_vec4 directly for !INTEGER hardware.
Fixes:
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| .. | ||
| cso | ||
| buffermapping.rst | ||
| context.rst | ||
| cso.rst | ||
| debugging.rst | ||
| distro.rst | ||
| format.rst | ||
| glossary.rst | ||
| index.rst | ||
| intro.rst | ||
| pipeline.txt | ||
| postprocess.rst | ||
| resources.rst | ||
| screen.rst | ||
| tgsi.rst | ||