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gallium: completely remove T{EX,XF}_LZ opcode

Browse source 
This isn't in use, let's cull it.

Reviewed-by: Marek Olšák <maraeo@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40993>
This commit is contained in:
Erik Faye-Lund 2026-04-16 13:36:13 +02:00 • committed by Marge Bot
parent 208ecb1827
commit bf460a525d
6 changed files with 4 additions and 32 deletions
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23
docs/gallium/tgsi.rst
View file

@ -804,29 +804,6 @@ used.
& src0.y \times src1.y
\end{aligned}
.. opcode:: TEX_LZ - Texture Lookup With LOD = 0
This is the same as TXL with LOD = 0. Like every texture opcode, it obeys
pipe_sampler_view::u.tex.first_level and pipe_sampler_state::min_lod.
There is no way to override those two in shaders.
.. math::
coord.x = src0.x
coord.y = src0.y
coord.z = src0.z
coord.w = none
lod = 0
unit = src1
dst = texture\_sample(unit, coord, lod)
.. opcode:: TXL - Texture Lookup With explicit LOD
for cube map array textures, the explicit LOD value

1
src/gallium/auxiliary/tgsi/tgsi_info.c
View file

@ -248,7 +248,6 @@ tgsi_opcode_infer_src_type(enum tgsi_opcode opcode, unsigned src_idx)
switch (opcode) {
case TGSI_OPCODE_UIF:
case TGSI_OPCODE_TXF:
case TGSI_OPCODE_TXF_LZ:
case TGSI_OPCODE_U2F:
case TGSI_OPCODE_U2D:
case TGSI_OPCODE_UADD:

4
src/gallium/auxiliary/tgsi/tgsi_info_opcodes.h
View file

@ -15,7 +15,7 @@ OPCODE(1, 2, COMP, MAX)
OPCODE(1, 2, COMP, SLT)
OPCODE(1, 2, COMP, SGE)
OPCODE(1, 3, COMP, MAD)
OPCODE(1, 2, OTHR, TEX_LZ, .is_tex = 1)
OPCODE_GAP(17) /* removed */
OPCODE(1, 3, COMP, LRP)
OPCODE(1, 3, COMP, FMA)
OPCODE(1, 1, REPL, SQRT)
@ -23,7 +23,7 @@ OPCODE(1, 2, COMP, LDEXP)
OPCODE(1, 1, COMP, F2U64)
OPCODE(1, 1, COMP, F2I64)
OPCODE(1, 1, COMP, FRC)
OPCODE(1, 2, OTHR, TXF_LZ, .is_tex = 1)
OPCODE_GAP(25) /* removed */
OPCODE(1, 1, COMP, FLR)
OPCODE(1, 1, COMP, ROUND)
OPCODE(1, 1, REPL, EX2)

2
src/gallium/auxiliary/tgsi/tgsi_opcode_tmp.h
View file

@ -57,12 +57,10 @@ OP12(SLT)
OP12(SGE)
OP13(MAD)
OP13(DMAD)
OP12_TEX(TEX_LZ)
OP13(LRP)
OP11(SQRT)
OP11(DSQRT)
OP11(FRC)
OP12_TEX(TXF_LZ)
OP11(FLR)
OP11(ROUND)
OP11(EX2)

2
src/gallium/auxiliary/tgsi/tgsi_util.c
View file

@ -196,8 +196,6 @@ tgsi_util_get_src_usage_mask(enum tgsi_opcode opcode,
break;
case TGSI_OPCODE_TEX:
case TGSI_OPCODE_TEX_LZ:
case TGSI_OPCODE_TXF_LZ:
case TGSI_OPCODE_TXF:
case TGSI_OPCODE_TXB:
case TGSI_OPCODE_TXL:

4
src/gallium/include/pipe/p_shader_tokens.h
View file

@ -357,7 +357,7 @@ enum tgsi_opcode {
TGSI_OPCODE_SLT = 14,
TGSI_OPCODE_SGE = 15,
TGSI_OPCODE_MAD = 16,
TGSI_OPCODE_TEX_LZ = 17,
/* gap */
TGSI_OPCODE_LRP = 18,
TGSI_OPCODE_FMA = 19,
TGSI_OPCODE_SQRT = 20,
@ -365,7 +365,7 @@ enum tgsi_opcode {
TGSI_OPCODE_F2U64 = 22,
TGSI_OPCODE_F2I64 = 23,
TGSI_OPCODE_FRC = 24,
TGSI_OPCODE_TXF_LZ = 25,
/* gap */
TGSI_OPCODE_FLR = 26,
TGSI_OPCODE_ROUND = 27,
TGSI_OPCODE_EX2 = 28,