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pan/mdg: Vectorize vlut operations

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total instructions in shared programs: 49462 -> 49458 (<.01%)
instructions in affected programs: 348 -> 344 (-1.15%)
helped: 2
HURT: 0

total bundles in shared programs: 25201 -> 25199 (<.01%)
bundles in affected programs: 142 -> 140 (-1.41%)
helped: 2
HURT: 0

total quadwords in shared programs: 40273 -> 40269 (<.01%)
quadwords in affected programs: 244 -> 240 (-1.64%)
helped: 2
HURT: 0

Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5513>
This commit is contained in:
Icecream95
2020-05-24 00:23:25 +12:00
committed by Alyssa Rosenzweig
parent c957249df9
commit a6f0d7f003
1 changed files with 18 additions and 1 deletions
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19
src/panfrost/midgard/midgard_compile.c
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@@ -1245,6 +1245,9 @@ emit_alu(compiler_context *ctx, nir_alu_instr *instr)
unsigned swizzle_back[MIR_VEC_COMPONENTS];
memcpy(&swizzle_back, ins.swizzle[0], sizeof(swizzle_back));
midgard_instruction ins_split[MIR_VEC_COMPONENTS];
unsigned ins_count = 0;
for (int i = 0; i < nr_components; ++i) {
/* Mask the associated component, dropping the
* instruction if needed */
@@ -1252,13 +1255,27 @@ emit_alu(compiler_context *ctx, nir_alu_instr *instr)
ins.mask = 1 << i;
ins.mask &= orig_mask;
for (unsigned j = 0; j < ins_count; ++j) {
if (swizzle_back[i] == ins_split[j].swizzle[0][0]) {
ins_split[j].mask |= ins.mask;
ins.mask = 0;
break;
}
}
if (!ins.mask)
continue;
for (unsigned j = 0; j < MIR_VEC_COMPONENTS; ++j)
ins.swizzle[0][j] = swizzle_back[i]; /* Pull from the correct component */
emit_mir_instruction(ctx, ins);
ins_split[ins_count] = ins;
++ins_count;
}
for (unsigned i = 0; i < ins_count; ++i) {
emit_mir_instruction(ctx, ins_split[i]);
}
} else {
emit_mir_instruction(ctx, ins);