diff options
| -rw-r--r-- | src/gallium/auxiliary/tgsi/tgsi_sse2.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_sse2.c b/src/gallium/auxiliary/tgsi/tgsi_sse2.c index 0820a4137e7..01b4a960129 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_sse2.c +++ b/src/gallium/auxiliary/tgsi/tgsi_sse2.c @@ -1938,11 +1938,17 @@ emit_instruction( break; case TGSI_OPCODE_ADD: + /* do all fetches and adds, storing results in temp regs */ FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) { - FETCH( func, *inst, 0, 0, chan_index ); - FETCH( func, *inst, 1, 1, chan_index ); - emit_add( func, 0, 1 ); - STORE( func, *inst, 0, 0, chan_index ); + int r = chan_index + 1; + FETCH( func, *inst, 0, 0, chan_index ); /* load xmm[0] */ + FETCH( func, *inst, r, 1, chan_index ); /* load xmm[r] */ + emit_add( func, r, 0 ); /* xmm[r] = xmm[r] + xmm[0] */ + } + /* do all stores of the temp regs */ + FOR_EACH_DST0_ENABLED_CHANNEL( *inst, chan_index ) { + int r = chan_index + 1; + STORE( func, *inst, r, 0, chan_index ); /* store xmm[r] */ } break; @@ -2825,8 +2831,10 @@ static void check_soa_dependencies(const struct tgsi_full_instruction *inst) { switch (inst->Instruction.Opcode) { + case TGSI_OPCODE_ADD: + case TGSI_OPCODE_MOV: case TGSI_OPCODE_XPD: - /* OK */ + /* OK - these opcodes correctly handle SOA dependencies */ break; default: if (tgsi_check_soa_dependencies(inst)) { |