[llvm] [AMDGPU] Extend wave reduce intrinsics for i32 type (PR #126469)

[via llvm-commits]

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@@ -4940,6 +4940,28 @@ static MachineBasicBlock *emitIndirectDst(MachineInstr &MI,
   return LoopBB;
 }
 
+static uint32_t getInitialValueForWaveReduction(unsigned Opc) {
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easyonaadit wrote:

There are a few, but are at different parts in the pipeline. None will match with the opcodes we are checking for here.

https://github.com/llvm/llvm-project/pull/126469