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brw: avoid setting up the sampler header bits when unused

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Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33704>
This commit is contained in:
Lionel Landwerlin 2025-02-24 10:52:57 +02:00 • committed by Marge Bot
parent 8b4f997168
commit d0c980caa7
1 changed files with 16 additions and 1 deletions
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17
src/intel/compiler/brw_lower_logical_sends.cpp
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@ -729,6 +729,21 @@ shader_opcode_needs_header(opcode op,
return false;
}
static bool
shader_opcode_uses_sampler(opcode op)
{
switch (op) {
case SHADER_OPCODE_SAMPLEINFO_LOGICAL:
case SHADER_OPCODE_TXF_LOGICAL:
case SHADER_OPCODE_TXS_LOGICAL:
case SHADER_OPCODE_IMAGE_SIZE_LOGICAL:
return false;
default:
return true;
}
}
static void
lower_sampler_logical_send(const brw_builder &bld, brw_inst *inst,
const brw_reg &coordinate,
@ -868,7 +883,7 @@ lower_sampler_logical_send(const brw_builder &bld, brw_inst *inst,
ubld1.SHL(tmp, tmp, brw_imm_ud(4));
ubld1.ADD(component(header, 3), sampler_state_ptr, tmp);
}
} else if (devinfo->ver >= 11) {
} else if (devinfo->ver >= 11 && shader_opcode_uses_sampler(op)) {
/* Gfx11+ sampler message headers include bits in 4:0 which conflict
* with the ones included in g0.3 bits 4:0. Mask them out.
*/