diff options
Diffstat (limited to 'src/gallium/drivers/nvc0/nvc0_pc_optimize.c')
| -rw-r--r-- | src/gallium/drivers/nvc0/nvc0_pc_optimize.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/gallium/drivers/nvc0/nvc0_pc_optimize.c b/src/gallium/drivers/nvc0/nvc0_pc_optimize.c index 3d03400518..8d4d0f3af6 100644 --- a/src/gallium/drivers/nvc0/nvc0_pc_optimize.c +++ b/src/gallium/drivers/nvc0/nvc0_pc_optimize.c @@ -142,9 +142,10 @@ nv_pc_pass_pre_emission(void *priv, struct nv_basic_block *b) struct nv_instruction *nvi, *next; int j; + /* find first non-empty block emitted before b */ for (j = pc->num_blocks - 1; j >= 0 && !pc->bb_list[j]->emit_size; --j); - if (j >= 0) { + for (; j >= 0; --j) { in = pc->bb_list[j]; /* check for no-op branches (BRA $PC+8) */ @@ -158,6 +159,9 @@ nv_pc_pass_pre_emission(void *priv, struct nv_basic_block *b) nvc0_insn_delete(in->exit); } b->emit_pos = in->emit_pos + in->emit_size; + + if (in->emit_size) /* no more no-op branches to b */ + break; } pc->bb_list[pc->num_blocks++] = b; |