diff options
| -rw-r--r-- | src/panfrost/midgard/compiler.h | 1 | ||||
| -rw-r--r-- | src/panfrost/midgard/mir.c | 18 |
2 files changed, 19 insertions, 0 deletions
diff --git a/src/panfrost/midgard/compiler.h b/src/panfrost/midgard/compiler.h index a338557a7a0..66cb34f9db5 100644 --- a/src/panfrost/midgard/compiler.h +++ b/src/panfrost/midgard/compiler.h @@ -525,6 +525,7 @@ bool mir_nontrivial_outmod(midgard_instruction *ins); void mir_insert_instruction_before_scheduled(compiler_context *ctx, midgard_block *block, midgard_instruction *tag, midgard_instruction ins); void mir_insert_instruction_after_scheduled(compiler_context *ctx, midgard_block *block, midgard_instruction *tag, midgard_instruction ins); void mir_flip(midgard_instruction *ins); +void mir_compute_temp_count(compiler_context *ctx); /* MIR goodies */ diff --git a/src/panfrost/midgard/mir.c b/src/panfrost/midgard/mir.c index f02527ff219..e19ed4f98a6 100644 --- a/src/panfrost/midgard/mir.c +++ b/src/panfrost/midgard/mir.c @@ -544,3 +544,21 @@ mir_flip(midgard_instruction *ins) ins->alu.src1 = ins->alu.src2; ins->alu.src2 = temp; } + +/* Before squashing, calculate ctx->temp_count just by observing the MIR */ + +void +mir_compute_temp_count(compiler_context *ctx) +{ + if (ctx->temp_count) + return; + + unsigned max_dest = 0; + + mir_foreach_instr_global(ctx, ins) { + if (ins->dest < SSA_FIXED_MINIMUM) + max_dest = MAX2(max_dest, ins->dest); + } + + ctx->temp_count = max_dest; +} |