diff options
| -rw-r--r-- | src/gallium/drivers/nv50/nv50_program.c | 41 |
1 files changed, 37 insertions, 4 deletions
diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c index 5d391f9b241..80b76301133 100644 --- a/src/gallium/drivers/nv50/nv50_program.c +++ b/src/gallium/drivers/nv50/nv50_program.c @@ -125,7 +125,7 @@ struct nv50_pc { static void alloc_reg(struct nv50_pc *pc, struct nv50_reg *reg) { - int i; + int i = 0; if (reg->type == P_RESULT) { if (pc->p->cfg.high_result < (reg->hw + 1)) @@ -143,7 +143,22 @@ alloc_reg(struct nv50_pc *pc, struct nv50_reg *reg) return; } - for (i = 0; i < NV50_SU_MAX_TEMP; i++) { + if (reg->rhw != -1) { + /* try to allocate temporary with index rhw first */ + if (!(pc->r_temp[reg->rhw])) { + pc->r_temp[reg->rhw] = reg; + reg->hw = reg->rhw; + if (pc->p->cfg.high_temp < (reg->rhw + 1)) + pc->p->cfg.high_temp = reg->rhw + 1; + return; + } + /* make sure we don't get things like $r0 needs to go + * in $r1 and $r1 in $r0 + */ + i = pc->result_nr * 4; + } + + for (; i < NV50_SU_MAX_TEMP; i++) { if (!(pc->r_temp[i])) { pc->r_temp[i] = reg; reg->hw = i; @@ -171,6 +186,7 @@ alloc_temp(struct nv50_pc *pc, struct nv50_reg *dst) r->type = P_TEMP; r->index = -1; r->hw = i; + r->rhw = -1; pc->r_temp[i] = r; return r; } @@ -1746,12 +1762,20 @@ nv50_program_tx_prep(struct nv50_pc *pc) if (pc->p->type == PIPE_SHADER_FRAGMENT) { pc->result[i*4+c].type = P_TEMP; pc->result[i*4+c].hw = -1; + pc->result[i*4+c].rhw = (i == depr) ? + -1 : rid++; } else { pc->result[i*4+c].type = P_RESULT; pc->result[i*4+c].hw = rid++; } pc->result[i*4+c].index = i; } + + if (pc->p->type == PIPE_SHADER_FRAGMENT && + depr != 0xffff) { + pc->result[depr * 4 + 2].rhw = + (pc->result_nr - 1) * 4; + } } } @@ -1828,6 +1852,7 @@ nv50_program_tx(struct nv50_program *p) { struct tgsi_parse_context parse; struct nv50_pc *pc; + unsigned k; boolean ret; pc = CALLOC_STRUCT(nv50_pc); @@ -1862,8 +1887,16 @@ nv50_program_tx(struct nv50_program *p) struct nv50_reg out; out.type = P_TEMP; - for (out.hw = 0; out.hw < pc->result_nr * 4; out.hw++) - emit_mov(pc, &out, &pc->result[out.hw]); + for (k = 0; k < pc->result_nr * 4; k++) { + if (pc->result[k].rhw == -1) + continue; + if (pc->result[k].hw != pc->result[k].rhw) { + out.hw = pc->result[k].rhw; + emit_mov(pc, &out, &pc->result[k]); + } + if (pc->p->cfg.high_result < (pc->result[k].rhw + 1)) + pc->p->cfg.high_result = pc->result[k].rhw + 1; + } } assert(is_long(pc->p->exec_tail) && !is_immd(pc->p->exec_head)); |