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authorChristoph Bumiller <[email protected]>2011-02-23 17:29:02 +0100
committerChristoph Bumiller <[email protected]>2011-02-24 17:35:36 +0100
commitd0caaba370cb70f426180a46e5475bf8a05ac19b (patch)
treeaab76a4d7ced16cfeae6b4c7d45611f7e270f05f /src
parentb0bf4ee85f01e9cbe240e49e67a947d052daa3f3 (diff)
nvc0: change TGSI CMP translation to use slct
Saves us the explicit compare instruction needed with selp.
Diffstat (limited to 'src')
-rw-r--r--src/gallium/drivers/nvc0/nvc0_pc_optimize.c13
-rw-r--r--src/gallium/drivers/nvc0/nvc0_pc_print.c6
-rw-r--r--src/gallium/drivers/nvc0/nvc0_tgsi_to_nc.c4
3 files changed, 15 insertions, 8 deletions
diff --git a/src/gallium/drivers/nvc0/nvc0_pc_optimize.c b/src/gallium/drivers/nvc0/nvc0_pc_optimize.c
index 8b56aa427fd..c5a7367a5fd 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
diff --git a/src/gallium/drivers/nvc0/nvc0_pc_print.c b/src/gallium/drivers/nvc0/nvc0_pc_print.c
index 4088a557231..90c669cc4b8 100644
--- a/src/gallium/drivers/nvc0/nvc0_pc_print.c
+++ b/src/gallium/drivers/nvc0/nvc0_pc_print.c
@@ -363,9 +363,9 @@ struct nv_op_info nvc0_op_info_table[NV_OP_COUNT + 1] =
{ NV_OP_SELP, "selp", NV_TYPE_U32, 0, 0, 0, 0, 1, 0, 0, 0 },
- { NV_OP_SLCT_F32, "slct", NV_TYPE_F32, 0, 0, 0, 0, 1, 0, 0, 0 },
- { NV_OP_SLCT_F32, "slct", NV_TYPE_S32, 0, 0, 0, 0, 1, 0, 0, 0 },
- { NV_OP_SLCT_F32, "slct", NV_TYPE_U32, 0, 0, 0, 0, 1, 0, 0, 0 },
+ { NV_OP_SLCT, "slct", NV_TYPE_F32, 0, 0, 0, 0, 1, 0, 2, 2 },
+ { NV_OP_SLCT, "slct", NV_TYPE_S32, 0, 0, 0, 0, 1, 0, 2, 2 },
+ { NV_OP_SLCT, "slct", NV_TYPE_U32, 0, 0, 0, 0, 1, 0, 2, 2 },
{ NV_OP_ADD, "sub", NV_TYPE_F32, 0, 0, 0, 0, 1, 0, 1, 0 },
diff --git a/src/gallium/drivers/nvc0/nvc0_tgsi_to_nc.c b/src/gallium/drivers/nvc0/nvc0_tgsi_to_nc.c
index f7dff596c28..a44d330c731 100644
--- a/src/gallium/drivers/nvc0/nvc0_tgsi_to_nc.c
+++ b/src/gallium/drivers/nvc0/nvc0_tgsi_to_nc.c
@@ -1493,10 +1493,10 @@ bld_instruction(struct bld_context *bld,
case TGSI_OPCODE_CMP:
FOR_EACH_DST0_ENABLED_CHANNEL(c, insn) {
src0 = emit_fetch(bld, insn, 0, c);
- src0 = bld_setp(bld, NV_OP_SET_F32, NV_CC_LT, src0, bld->zero);
src1 = emit_fetch(bld, insn, 1, c);
src2 = emit_fetch(bld, insn, 2, c);
- dst0[c] = bld_insn_3(bld, NV_OP_SELP, src1, src2, src0);
+ dst0[c] = bld_insn_3(bld, NV_OP_SLCT_F32, src1, src2, src0);
+ dst0[c]->insn->set_cond = NV_CC_LT;
}
break;
case TGSI_OPCODE_COS: