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aco/optimizer: remove ineffective vcc opt

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Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29270>
This commit is contained in:
Georg Lehmann
2024-05-17 17:50:15 +02:00
committed by Marge Bot
parent eefe34127f
commit bd699b5d88
1 changed files with 2 additions and 21 deletions
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src/amd/compiler/aco_optimizer.cpp
+2 -21
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@@ -82,7 +82,6 @@ enum Label {
label_omod5 = 1 << 10,
label_clamp = 1 << 12,
label_undefined = 1 << 14,
label_vcc = 1 << 15,
label_b2f = 1 << 16,
label_add_sub = 1 << 17,
label_bitwise = 1 << 18,
@@ -117,7 +116,7 @@ static constexpr uint64_t instr_mod_labels =
label_omod2 | label_omod4 | label_omod5 | label_clamp | label_insert | label_f2f16;
static constexpr uint64_t instr_labels = instr_usedef_labels | instr_mod_labels | label_split;
static constexpr uint64_t temp_labels = label_abs | label_neg | label_temp | label_vcc | label_b2f |
static constexpr uint64_t temp_labels = label_abs | label_neg | label_temp | label_b2f |
label_uniform_bool | label_scc_invert | label_b2i |
label_fcanonicalize;
static constexpr uint32_t val_labels =
@@ -332,14 +331,6 @@ struct ssa_info {
bool is_undefined() { return label & label_undefined; }
void set_vcc(Temp vcc_val)
{
add_label(label_vcc);
temp = vcc_val;
}
bool is_vcc() { return label & label_vcc; }
void set_b2f(Temp b2f_val)
{
add_label(label_b2f);
@@ -1947,22 +1938,12 @@ label_instruction(opt_ctx& ctx, aco_ptr<Instruction>& instr)
break;
}
case aco_opcode::v_cndmask_b32:
if (instr->operands[0].constantEquals(0) && instr->operands[1].constantEquals(0xFFFFFFFF))
ctx.info[instr->definitions[0].tempId()].set_vcc(instr->operands[2].getTemp());
else if (instr->operands[0].constantEquals(0) &&
instr->operands[1].constantEquals(0x3f800000u))
if (instr->operands[0].constantEquals(0) && instr->operands[1].constantEquals(0x3f800000u))
ctx.info[instr->definitions[0].tempId()].set_b2f(instr->operands[2].getTemp());
else if (instr->operands[0].constantEquals(0) && instr->operands[1].constantEquals(1))
ctx.info[instr->definitions[0].tempId()].set_b2i(instr->operands[2].getTemp());
break;
case aco_opcode::v_cmp_lg_u32:
if (instr->format == Format::VOPC && /* don't optimize VOP3 / SDWA / DPP */
instr->operands[0].constantEquals(0) && instr->operands[1].isTemp() &&
ctx.info[instr->operands[1].tempId()].is_vcc())
ctx.info[instr->definitions[0].tempId()].set_temp(
ctx.info[instr->operands[1].tempId()].temp);
break;
case aco_opcode::v_add_u32:
case aco_opcode::v_add_co_u32:
case aco_opcode::v_add_co_u32_e64: