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microsoft/compiler: Lower I/O to scalar 

A future change will start computing component masks while
processing I/O instructions, and only having to compute
a mask for one component per instruction simplifies things.

Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17603>
This commit is contained in:
Jesse Natalie 2022-07-17 05:07:34 -07:00 committed by Marge Bot
parent 80d35739ff
commit 170d428887
1 changed files with 1 additions and 0 deletions
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src/microsoft/compiler/nir_to_dxil.c
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@ -5757,6 +5757,7 @@ nir_to_dxil(struct nir_shader *s, const struct nir_to_dxil_options *opts,
NIR_PASS_V(s, dxil_nir_ensure_position_writes);
NIR_PASS_V(s, nir_lower_pack);
NIR_PASS_V(s, dxil_nir_lower_system_values);
NIR_PASS_V(s, nir_lower_io_to_scalar, nir_var_shader_in | nir_var_system_value | nir_var_shader_out);
if (ctx->mod.shader_kind == DXIL_HULL_SHADER)
NIR_PASS_V(s, dxil_nir_split_tess_ctrl, &ctx->tess_ctrl_patch_constant_func);