================
@@ -2427,6 +2430,32 @@ bool SPIRVInstructionSelector::selectWaveActiveCountBits(
return Result;
}
+bool SPIRVInstructionSelector::selectWaveReduceOr(
+ Register ResVReg, const SPIRVType *ResType, MachineInstr &I) const {
+
+ assert(I.getNumOperands() == 3);
+ assert(I.getOperand(2).isReg());
+ MachineBasicBlock &BB = *I.getParent();
+ Register InputRegister = I.getOperand(2).getReg();
+ SPIRVType *InputType = GR.getSPIRVTypeForVReg(InputRegister);
+
+ if (!InputType)
+ report_fatal_error("Input Type could not be determined.");
+
+ SPIRVType *IntTy = GR.getOrCreateSPIRVIntegerType(32, I, TII);
+
+ auto Opcode = SPIRV::OpGroupNonUniformBitwiseOr;
+
+ return BuildMI(BB, I, I.getDebugLoc(), TII.get(Opcode))
+ .addDef(ResVReg)
+ .addUse(GR.getSPIRVTypeID(ResType))
+ .addUse(GR.getOrCreateConstInt(SPIRV::Scope::Subgroup, I, IntTy, TII,
+ !STI.isShader()))
+ .addImm(SPIRV::GroupOperation::Reduce)
----------------
KungFuDonkey wrote:
So, should I still rename wave_reduce_or?
https://github.com/llvm/llvm-project/pull/165156
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