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intel/compiler: remove gfx6 gather wa from backend.

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Crocus lowers this in the frontend, they key member is still used
but reset prior to backend.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14202>
This commit is contained in:
Dave Airlie
2021-12-15 10:21:46 +10:00
committed by Marge Bot
parent ebaba7a2fd
commit e12b0d0d60
5 changed files with 0 additions and 66 deletions
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31
src/intel/compiler/brw_vec4_nir.cpp
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@@ -2278,10 +2278,6 @@ vec4_visitor::nir_emit_texture(nir_tex_instr *instr)
src_reg(inst->dst), brw_imm_d(1));
}
if (devinfo->ver == 6 && instr->op == nir_texop_tg4) {
emit_gfx6_gather_wa(key_tex->gfx6_gather_wa[texture], inst->dst);
}
if (instr->op == nir_texop_query_levels) {
/* # levels is in .w */
src_reg swizzled(dest);
@@ -2319,33 +2315,6 @@ vec4_visitor::emit_mcs_fetch(const glsl_type *coordinate_type,
return src_reg(inst->dst);
}
/**
* Apply workarounds for Gfx6 gather with UINT/SINT
*/
void
vec4_visitor::emit_gfx6_gather_wa(uint8_t wa, dst_reg dst)
{
if (!wa)
return;
int width = (wa & WA_8BIT) ? 8 : 16;
dst_reg dst_f = dst;
dst_f.type = BRW_REGISTER_TYPE_F;
/* Convert from UNORM to UINT */
emit(MUL(dst_f, src_reg(dst_f), brw_imm_f((float)((1 << width) - 1))));
emit(MOV(dst, src_reg(dst_f)));
if (wa & WA_SIGN) {
/* Reinterpret the UINT value as a signed INT value by
* shifting the sign bit into place, then shifting back
* preserving sign.
*/
emit(SHL(dst, src_reg(dst), brw_imm_d(32 - width)));
emit(ASR(dst, src_reg(dst), brw_imm_d(32 - width)));
}
}
void
vec4_visitor::nir_emit_undef(nir_ssa_undef_instr *instr)
{