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shader: V_CMPX_LT_I16 + fix SDWA with SEXT

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nmzik committed 2026-09-30 20:49:20 +04:00
1 parent 17100ec968
commit bc193f5272
5 files changed
+194 -3
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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)}));
}