[clang] [llvm] [HLSL] Add WaveActiveBitOr HLSL function (PR #178056)

[Farzon Lotfi via cfe-commits]

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@@ -928,6 +973,19 @@ Value *CodeGenFunction::EmitHLSLBuiltinExpr(unsigned BuiltinID,
 
     return handleHlslWaveActiveBallot(*this, E);
   }
+  case Builtin::BI__builtin_hlsl_wave_active_bit_or: {
+    Value *Op = EmitScalarExpr(E->getArg(0));
+    assert(Op->getType()->isIntegerTy() &&
+           "Intrinsic WaveActiveBitOr operand must be an integer type");
+
+    Intrinsic::ID IID = getWaveBitOpIntrinsic(
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farzonl wrote:

I've been looking at this and there really is no reason to add OpKind. it isn't a parameter we need to pass on to the intrinsic and it doesn't really reduce the amount of code we have to write either. you already have a builtin in `BI__builtin_hlsl_wave_active_bit_or` that tells you exactly what intrinsic you need to generate. the only toggling should be for target nothing else.

https://github.com/llvm/llvm-project/pull/178056