From: Jonathan White <jwhite@tungstengraphics.com>
Date: Tue, 16 Sep 2008 15:36:38 +0000 (-0600)
Subject: cell: Fixed MIN/MAX algorithm
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2c54a6ee798ae22f92ef1fc4a1658ec5e701388a;p=mesa.git

cell: Fixed MIN/MAX algorithm
---

diff --git a/src/gallium/drivers/cell/ppu/cell_gen_fp.c b/src/gallium/drivers/cell/ppu/cell_gen_fp.c
index 98ee5af2790..612749507be 100644
--- a/src/gallium/drivers/cell/ppu/cell_gen_fp.c
+++ b/src/gallium/drivers/cell/ppu/cell_gen_fp.c
@@ -657,9 +657,7 @@ emit_MAX(struct codegen *gen, const struct tgsi_full_instruction *inst)
 
          /* d = (s1 > s2) ? s1 : s2 */
          spe_fcgt(gen->f, d_reg, s1_reg, s2_reg);
-         spe_and(gen->f, d_reg, d_reg, s1_reg);
-         spe_nor(gen->f, d_reg, d_reg, d_reg);
-         spe_and(gen->f, d_reg, d_reg, s2_reg);
+         spe_selb(gen->f, d_reg, s2_reg, s1_reg, d_reg);
 
          store_dest_reg(gen, d_reg, ch, &inst->FullDstRegisters[0]);
          free_itemps(gen);
@@ -685,11 +683,9 @@ emit_MIN(struct codegen *gen, const struct tgsi_full_instruction *inst)
          int s2_reg = get_src_reg(gen, ch, &inst->FullSrcRegisters[1]);
          int d_reg = get_dst_reg(gen, ch, &inst->FullDstRegisters[0]);
 
-         /* d = (s1 < s2) ? s1 : s2 */
+         /* d = (s2 > s1) ? s1 : s2 */
          spe_fcgt(gen->f, d_reg, s2_reg, s1_reg);
-         spe_and(gen->f, d_reg, d_reg, s1_reg);
-         spe_nor(gen->f, d_reg, d_reg, d_reg);
-         spe_and(gen->f, d_reg, d_reg, s2_reg);
+         spe_selb(gen->f, d_reg, s2_reg, s1_reg, d_reg);
 
          store_dest_reg(gen, d_reg, ch, &inst->FullDstRegisters[0]);
          free_itemps(gen);