diff options
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c index 84d03a145f7..28ff362cac4 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c @@ -586,6 +586,17 @@ emit_instruction( if (indirect_temp_reference(inst)) return FALSE; + /* + * Stores and write masks are handled in a general fashion after the long + * instruction opcode switch statement. + * + * Although not stricitly necessary, we avoid generating instructions for + * channels which won't be stored, in cases where's that easy. For some + * complex instructions, like texture sampling, it is more convenient to + * assume a full writemask and then let LLVM optimization passes eliminate + * redundant code. + */ + assert(info->num_dst <= 1); if(info->num_dst) { FOR_EACH_DST0_ENABLED_CHANNEL( inst, chan_index ) { @@ -1131,7 +1142,6 @@ emit_instruction( break; case TGSI_OPCODE_TEX: - /* XXX what about dst0 writemask? */ emit_tex( bld, inst, FALSE, FALSE, dst0 ); break; |