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ir3: Use a linear allocation context for ir3_instructions.

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Again, instrs don't get freed as we go, so the linear gc context saves us
5 pointers per instr.

Fossil replay time for deadspace3 on a debugoptimized build -4.85258% +/-
3.04009% (n=10)

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37316>
This commit is contained in:
Emma Anholt 2025-09-11 13:02:57 -07:00
parent 12fae29ec2
commit 114e6a3104
2 changed files with 4 additions and 4 deletions
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4
src/freedreno/ir3/ir3.c
View file

@ -883,7 +883,7 @@ instr_create(struct ir3_block *block, opc_t opc, int ndst, int nsrc)
struct ir3_instruction *instr;
unsigned sz = sizeof(*instr) + (ndst * sizeof(instr->dsts[0])) +
(nsrc * sizeof(instr->srcs[0]));
char *ptr = ir3_alloc(block->shader, sz);
char *ptr = linear_zalloc_child(block->shader->lin_ctx, sz);
instr = (struct ir3_instruction *)ptr;
ptr += sizeof(*instr);
@ -1012,7 +1012,7 @@ ir3_instr_add_dep(struct ir3_instruction *instr, struct ir3_instruction *dep)
return;
}
array_insert(instr, instr->deps, dep);
array_insert(instr->block->shader, instr->deps, dep);
}
void

4
src/freedreno/ir3/ir3_compiler_nir.c
View file

@ -5725,7 +5725,7 @@ ir3_compile_shader_nir(struct ir3_compiler *compiler,
for (unsigned i = 0; i < outputs_count; i++)
__ssa_src(chmask, outputs[i], 0)->num = regids[i];
chmask->end.outidxs = ralloc_array(chmask, unsigned, outputs_count);
chmask->end.outidxs = linear_alloc_array(ir->lin_ctx, unsigned, outputs_count);
memcpy(chmask->end.outidxs, outidxs, sizeof(unsigned) * outputs_count);
array_insert(ctx->block, ctx->block->keeps, chmask);
@ -5816,7 +5816,7 @@ ir3_compile_shader_nir(struct ir3_compiler *compiler,
__ssa_src(end, outputs[i], 0);
}
end->end.outidxs = ralloc_array(end, unsigned, outputs_count);
end->end.outidxs = linear_alloc_array(ir->lin_ctx, unsigned, outputs_count);
memcpy(end->end.outidxs, outidxs, sizeof(unsigned) * outputs_count);
array_insert(ctx->block, ctx->block->keeps, end);