diff options
| author | Christoph Bumiller <e0425955@student.tuwien.ac.at> | 2011-02-23 17:29:02 +0100 |
|---|---|---|
| committer | Christoph Bumiller <e0425955@student.tuwien.ac.at> | 2011-02-24 17:35:36 +0100 |
| commit | d0caaba370cb70f426180a46e5475bf8a05ac19b (patch) | |
| tree | aab76a4d7ced16cfeae6b4c7d45611f7e270f05f /src/gallium/drivers/nvc0/nvc0_pc_optimize.c | |
| parent | b0bf4ee85f01e9cbe240e49e67a947d052daa3f3 (diff) | |
nvc0: change TGSI CMP translation to use slct
Saves us the explicit compare instruction needed with selp.
Diffstat (limited to 'src/gallium/drivers/nvc0/nvc0_pc_optimize.c')
| -rw-r--r-- | src/gallium/drivers/nvc0/nvc0_pc_optimize.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/src/gallium/drivers/nvc0/nvc0_pc_optimize.c b/src/gallium/drivers/nvc0/nvc0_pc_optimize.c index 8b56aa427f..c5a7367a5f 100644 --- a/src/gallium/drivers/nvc0/nvc0_pc_optimize.c +++ b/src/gallium/drivers/nvc0/nvc0_pc_optimize.c @@ -245,7 +245,9 @@ check_swap_src_0_1(struct nv_instruction *nvi) struct nv_ref *src0 = nvi->src[0]; struct nv_ref *src1 = nvi->src[1]; - if (!nv_op_commutative(nvi->opcode) && NV_BASEOP(nvi->opcode) != NV_OP_SET) + if (!nv_op_commutative(nvi->opcode) && + NV_BASEOP(nvi->opcode) != NV_OP_SET && + NV_BASEOP(nvi->opcode) != NV_OP_SLCT) return; assert(src0 && src1 && src0->value && src1->value); @@ -266,8 +268,13 @@ check_swap_src_0_1(struct nv_instruction *nvi) } } - if (nvi->src[0] != src0 && NV_BASEOP(nvi->opcode) == NV_OP_SET) - nvi->set_cond = (nvi->set_cond & ~7) | cc_swapped[nvi->set_cond & 7]; + if (nvi->src[0] != src0) { + if (NV_BASEOP(nvi->opcode) == NV_OP_SET) + nvi->set_cond = (nvi->set_cond & ~7) | cc_swapped[nvi->set_cond & 7]; + else + if (NV_BASEOP(nvi->opcode) == NV_OP_SLCT) + nvi->set_cond = NV_CC_INVERSE(nvi->set_cond); + } } static void |