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RD DXIL Disassembly: explicit handling for specific FP comparisons

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FOrdFalse
FOrdTrue
FOrd
FUnord
This commit is contained in:
Jake Turner
2024-04-23 11:23:20 +01:00
parent 9bb9c4ba6e
commit bdc0a0bc2d
1 changed files with 26 additions and 8 deletions
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renderdoc/driver/shaders/dxil/dxil_disassemble.cpp
+26 -8
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@@ -2512,36 +2512,28 @@ void Program::MakeRDDisassemblyString()
lineStr += StringFormat::Fmt(", align %u", (1U << inst.align) >> 1);
break;
}
case Operation::FOrdFalse:
case Operation::FOrdEqual:
case Operation::FOrdGreater:
case Operation::FOrdGreaterEqual:
case Operation::FOrdLess:
case Operation::FOrdLessEqual:
case Operation::FOrdNotEqual:
case Operation::FOrd:
case Operation::FUnord:
case Operation::FUnordEqual:
case Operation::FUnordGreater:
case Operation::FUnordGreaterEqual:
case Operation::FUnordLess:
case Operation::FUnordLessEqual:
case Operation::FUnordNotEqual:
case Operation::FOrdTrue:
{
rdcstr opStr;
switch(inst.op)
{
case Operation::FOrdFalse: opStr = " false "; break;
case Operation::FOrdTrue: opStr = " true "; break;
case Operation::FOrdEqual: opStr = " = "; break;
case Operation::FOrdGreater: opStr = " > "; break;
case Operation::FOrdGreaterEqual: opStr = " >= "; break;
case Operation::FOrdLess: opStr = " < "; break;
case Operation::FOrdLessEqual: opStr = " <= "; break;
case Operation::FOrdNotEqual: opStr = " != "; break;
case Operation::FOrd: opStr = "ord "; break;
case Operation::FUnord: opStr = "uno "; break;
case Operation::FUnordEqual: opStr = " = ";
case Operation::FUnordGreater: opStr = " > "; break;
case Operation::FUnordGreaterEqual: opStr = " >= "; break;
@@ -2567,6 +2559,32 @@ void Program::MakeRDDisassemblyString()
lineStr += ")";
break;
}
case Operation::FOrd:
{
// ord: yields true if both operands are not a QNAN.
lineStr += "!isqnan(";
lineStr += ArgToString(inst.args[0], false);
lineStr += ")";
lineStr += " && ";
lineStr += "!isqnan(";
lineStr += ArgToString(inst.args[1], false);
lineStr += ")";
break;
}
case Operation::FUnord:
{
// uno: yields true if either operand is a QNAN.
lineStr += "isqnan(";
lineStr += ArgToString(inst.args[0], false);
lineStr += ")";
lineStr += " || ";
lineStr += "isqnan(";
lineStr += ArgToString(inst.args[1], false);
lineStr += ")";
break;
}
case Operation::FOrdFalse: lineStr += "false"; break;
case Operation::FOrdTrue: lineStr += "true"; break;
case Operation::IEqual:
case Operation::INotEqual:
case Operation::UGreater: