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cell: Fix bug with complement logic for SGE and SLE

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This commit is contained in:
Jonathan White
2008-09-18 11:11:49 -06:00
parent 3d2449247a
commit 15fceac040
1 changed files with 38 additions and 4 deletions
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src/gallium/drivers/cell/ppu/cell_gen_fp.c
+38 -4
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@@ -716,8 +716,8 @@ emit_SGE(struct codegen *gen, const struct tgsi_full_instruction *inst)
spe_fcgt(gen->f, d_reg, s2_reg, s1_reg);
/* convert d from 0x0/0xffffffff to 0.0/1.0 */
/* d = d & ~one_reg */
spe_andc(gen->f, d_reg, d_reg, get_const_one_reg(gen));
/* d = ~d & one_reg */
spe_andc(gen->f, d_reg, get_const_one_reg(gen), d_reg);
store_dest_reg(gen, d_reg, ch, &inst->FullDstRegisters[0]);
free_itemps(gen);
@@ -747,8 +747,8 @@ emit_SLE(struct codegen *gen, const struct tgsi_full_instruction *inst)
spe_fcgt(gen->f, d_reg, s1_reg, s2_reg);
/* convert d from 0x0/0xffffffff to 0.0/1.0 */
/* d = d & ~one_reg */
spe_andc(gen->f, d_reg, d_reg, get_const_one_reg(gen));
/* d = ~d & one_reg */
spe_andc(gen->f, d_reg, get_const_one_reg(gen), d_reg);
store_dest_reg(gen, d_reg, ch, &inst->FullDstRegisters[0]);
free_itemps(gen);
@@ -821,6 +821,38 @@ emit_SNE(struct codegen *gen, const struct tgsi_full_instruction *inst)
return true;
}
/**
* Emit compare. See emit_SGT for comments.
*/
static boolean
emit_CMP(struct codegen *gen, const struct tgsi_full_instruction *inst)
{
int ch;
spe_comment(gen->f, -4, "CMP:");
for (ch = 0; ch < 4; ch++) {
if (inst->FullDstRegisters[0].DstRegister.WriteMask & (1 << ch)) {
int s1_reg = get_src_reg(gen, ch, &inst->FullSrcRegisters[0]);
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) */
spe_fceq(gen->f, d_reg, s1_reg, s2_reg);
spe_nor(gen->f, d_reg, d_reg, d_reg);
/* convert d from 0x0/0xffffffff to 0.0/1.0 */
/* d = d & one_reg */
spe_and(gen->f, d_reg, d_reg, get_const_one_reg(gen));
store_dest_reg(gen, d_reg, ch, &inst->FullDstRegisters[0]);
free_itemps(gen);
}
}
return true;
}
/**
* Emit max. See emit_SGT for comments.
*/
@@ -1028,6 +1060,8 @@ emit_instruction(struct codegen *gen,
return emit_SEQ(gen, inst);
case TGSI_OPCODE_SNE:
return emit_SNE(gen, inst);
case TGSI_OPCODE_CMP:
return emit_CMP(gen, inst);
case TGSI_OPCODE_MAX:
return emit_MAX(gen, inst);
case TGSI_OPCODE_MIN: