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authorChristoph Bumiller <e0425955@student.tuwien.ac.at>2009-05-23 12:21:54 +0200
committerBen Skeggs <bskeggs@redhat.com>2009-05-28 16:06:17 +1000
commit229992d2812581ffae24d69a5a983d2c8441f720 (patch)
treecb1577891211c1f9e0e63fd331a32af4976ef174
parent9417582f39788476e1039df3f1bdf681686fb7b4 (diff)
nv50: make LRP instruction nicer
-rw-r--r--src/gallium/drivers/nv50/nv50_program.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c
index a33ec5997a..6aec9cc841 100644
--- a/src/gallium/drivers/nv50/nv50_program.c
+++ b/src/gallium/drivers/nv50/nv50_program.c
@@ -1117,15 +1117,12 @@ nv50_program_tx_insn(struct nv50_pc *pc, const union tgsi_full_token *tok)
}
break;
case TGSI_OPCODE_LRP:
+ temp = temp_temp(pc);
for (c = 0; c < 4; c++) {
if (!(mask & (1 << c)))
continue;
- /*XXX: we can do better than this */
- temp = alloc_temp(pc, NULL);
- emit_neg(pc, temp, src[0][c]);
- emit_mad(pc, temp, temp, src[2][c], src[2][c]);
- emit_mad(pc, dst[c], src[0][c], src[1][c], temp);
- free_temp(pc, temp);
+ emit_sub(pc, temp, src[1][c], src[2][c]);
+ emit_mad(pc, dst[c], temp, src[0][c], src[2][c]);
}
break;
case TGSI_OPCODE_MAD: