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shader: V_CMPX_LT_I16 + fix SDWA with SEXT

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nmzik
2026-09-30 20:49:20 +04:00
parent 17100ec968
commit bc193f5272
5 changed files with 194 additions and 3 deletions
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src/graphics/shader/recompiler/frontend/decode/ShaderDecoder.h
+1
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@@ -384,6 +384,7 @@ enum class Opcode {
V_CMP_GT_I16,
V_CMP_NE_I16,
V_CMP_GE_I16,
V_CMPX_LT_I16,
V_CMP_LT_F16,
V_CMP_EQ_F16,
V_CMP_LE_F16,
src/graphics/shader/recompiler/frontend/decode/VectorAluOps.cpp
+2
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@@ -239,6 +239,7 @@ constexpr VopcOpcodeInfo VOPC_OPCODE_LIST[] = {
{0x92u, Opcode::V_CMPX_EQ_I32}, {0x93u, Opcode::V_CMPX_LE_I32},
{0x94u, Opcode::V_CMPX_GT_I32}, {0x95u, Opcode::V_CMPX_NE_I32},
{0x96u, Opcode::V_CMPX_GE_I32}, {0x98u, Opcode::V_CMPX_CLASS_F32},
{0x99u, Opcode::V_CMPX_LT_I16, false},
{0xa9u, Opcode::V_CMP_LT_U16}, {0xaau, Opcode::V_CMP_EQ_U16},
{0xabu, Opcode::V_CMP_LE_U16}, {0xacu, Opcode::V_CMP_GT_U16},
{0xadu, Opcode::V_CMP_NE_U16}, {0xaeu, Opcode::V_CMP_GE_U16},
@@ -1487,6 +1488,7 @@ bool IsVopcCompareExec(Opcode opcode) {
case Opcode::V_CMPX_GE_U32:
case Opcode::V_CMPX_NE_I64:
case Opcode::V_CMPX_NE_U64:
case Opcode::V_CMPX_LT_I16:
case Opcode::V_CMPX_LT_U16:
case Opcode::V_CMPX_EQ_U16:
case Opcode::V_CMPX_GT_U16:
src/graphics/shader/recompiler/frontend/translate/Translate.cpp
+7 -1
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@@ -560,6 +560,12 @@ IR::U32 Translator::ReadU16LaneRaw(const Decoder::Operand& operand, bool high_la
} else if (operand.sdwa_sel == 4u || operand.sdwa_sel == 5u) {
offset = operand.sdwa_sel == 5u ? 16u : 0u;
}
if (width == 8u && operand.sdwa_sext) {
// Extend the selected byte into the 16-bit operand before halfword modifiers.
const auto value = IR::U32(
ir.Emit(IR::ValueOpcode::BitFieldSExtract, {bits, IR::Value(offset), IR::Value(width)}));
return ir.BitwiseAnd(value, IR::U32(IR::Value(0xffffu)));
}
return IR::U32(
ir.Emit(IR::ValueOpcode::BitFieldUExtract, {bits, IR::Value(offset), IR::Value(width)}));
}
@@ -567,7 +573,7 @@ IR::U32 Translator::ReadU16LaneRaw(const Decoder::Operand& operand, bool high_la
IR::U32 Translator::ReadU16LaneAsU32(const Decoder::Operand& operand, bool high_lane,
bool sign_extend) {
auto value = Read16LaneBits(operand, high_lane);
if (sign_extend || operand.sdwa_sext) {
if (sign_extend) {
value = IR::U32(
ir.Emit(IR::ValueOpcode::BitFieldSExtract, {value, IR::Value(0u), IR::Value(16u)}));
}
src/graphics/shader/recompiler/frontend/translate/Vector.cpp
+3
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@@ -156,6 +156,9 @@ void Translator::EmitVector(const Decoder::Instruction& inst) {
case O::V_CMP_LT_I16:
EmitInteger16Compare(inst, IR::ValueOpcode::SLessThan32, true, false);
return;
case O::V_CMPX_LT_I16:
EmitInteger16Compare(inst, IR::ValueOpcode::SLessThan32, true, true);
return;
case O::V_CMP_LE_I16:
EmitInteger16Compare(inst, IR::ValueOpcode::SLessThanEqual32, true, false);
return;