diff options
| author | Christoph Bumiller <e0425955@student.tuwien.ac.at> | 2011-01-23 13:05:44 +0100 |
|---|---|---|
| committer | Christoph Bumiller <e0425955@student.tuwien.ac.at> | 2011-01-23 13:05:44 +0100 |
| commit | f9bb1c8b3332d26596dd37063d0b9866bc40e63d (patch) | |
| tree | 9842e030df7365a572c95bb3cfee1f59715fd748 /src/gallium/drivers/nvc0/nvc0_pc_optimize.c | |
| parent | 005d186d6634abaeef348ca89c527bd5c34d0e87 (diff) | |
nvc0: fix address and value slot assignment in load combining
Diffstat (limited to 'src/gallium/drivers/nvc0/nvc0_pc_optimize.c')
| -rw-r--r-- | src/gallium/drivers/nvc0/nvc0_pc_optimize.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/gallium/drivers/nvc0/nvc0_pc_optimize.c b/src/gallium/drivers/nvc0/nvc0_pc_optimize.c index 404b4dccbb..e0d4e2daf9 100644 --- a/src/gallium/drivers/nvc0/nvc0_pc_optimize.c +++ b/src/gallium/drivers/nvc0/nvc0_pc_optimize.c @@ -700,6 +700,9 @@ struct pass_reld_elim { int alloc; }; +/* Extend the load operation in @rec to also cover the data loaded by @ld. + * The two loads may not overlap but reference adjacent memory locations. + */ static void combine_load(struct mem_record *rec, struct nv_instruction *ld) { @@ -716,7 +719,7 @@ combine_load(struct mem_record *rec, struct nv_instruction *ld) return; rec->ofst = mem->reg.address; for (j = 0; j < d; ++j) - fv->def[d + j] = fv->def[j]; + fv->def[mem->reg.size / 4 + j] = fv->def[j]; d = 0; } else if ((size == 8 && rec->ofst & 3) || @@ -729,6 +732,7 @@ combine_load(struct mem_record *rec, struct nv_instruction *ld) fv->def[d++]->insn = fv; } + fv->src[0]->value->reg.address = rec->ofst; fv->src[0]->value->reg.size = rec->size = size; nvc0_insn_delete(ld); @@ -793,6 +797,7 @@ nv_pass_mem_opt(struct pass_reld_elim *ctx, struct nv_basic_block *b) ((it->ofst >> 4) == (ofst >> 4)) && ((it->ofst + it->size == ofst) || (it->ofst - mem->reg.size == ofst))) { + /* only NV_OP_VFETCH can load exactly 12 bytes */ if (ld->opcode == NV_OP_LD && it->size + mem->reg.size == 12) continue; if (it->ofst < ofst) { |