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cell: Optimized LERP with fma

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Jonathan White
2008-09-16 09:42:28 -06:00
parent 2c54a6ee79
commit dd75ca89eb
1 changed files with 2 additions and 3 deletions
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src/gallium/drivers/cell/ppu/cell_gen_fp.c
+2 -3
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@@ -453,8 +453,7 @@ emit_LERP(struct codegen *gen, const struct tgsi_full_instruction *inst)
int d_reg = get_dst_reg(gen, ch, &inst->FullDstRegisters[0]);
/* d = s3 + s1(s2 - s3) */
spe_fs(gen->f, d_reg, s2_reg, s3_reg);
spe_fm(gen->f, d_reg, d_reg, s1_reg);
spe_fa(gen->f, d_reg, d_reg, s3_reg);
spe_fma(gen->f, d_reg, d_reg, s1_reg, s3_reg);
store_dest_reg(gen, d_reg, ch, &inst->FullDstRegisters[0]);
free_itemps(gen);
}
@@ -657,7 +656,7 @@ 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_selb(gen->f, d_reg, s2_reg, s1_reg, d_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);