intel: compiler: vec4: add missing default 0 lod
We set a similar default value for LOD in the fs backend for TXS/TXL. Without this we end up generating invalid MOV with a null src. Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Cc: "17.2 17.1" <mesa-stable@lists.freedesktop.org> Reviewed-by: Matt Turner <mattst88@gmail.com>
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@ -2228,6 +2228,15 @@ vec4_visitor::nir_emit_texture(nir_tex_instr *instr)
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}
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}
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/* TXS and TXL require a LOD but not everything we implement using those
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* two opcodes provides one. Provide a default LOD of 0.
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*/
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if ((instr->op == nir_texop_txs ||
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instr->op == nir_texop_txl) &&
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lod.file == BAD_FILE) {
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lod = brw_imm_ud(0u);
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}
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if (instr->op == nir_texop_txf_ms ||
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instr->op == nir_texop_samples_identical) {
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assert(coord_type != NULL);
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