[llvm-branch-commits] [llvm] [AMDGPU] Add wave reduce intrinsics for double types - 2 (PR #170812)

[Juan Manuel Martinez Caamaño via llvm-branch-commits]

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@@ -6093,12 +6150,16 @@ SITargetLowering::EmitInstrWithCustomInserter(MachineInstr &MI,
     return lowerWaveReduce(MI, *BB, *getSubtarget(), AMDGPU::S_ADD_U64_PSEUDO);
   case AMDGPU::WAVE_REDUCE_FADD_PSEUDO_F32:
     return lowerWaveReduce(MI, *BB, *getSubtarget(), AMDGPU::V_ADD_F32_e64);
+  case AMDGPU::WAVE_REDUCE_FADD_PSEUDO_F64:
+    return lowerWaveReduce(MI, *BB, *getSubtarget(), AMDGPU::V_ADD_F64_e64);
   case AMDGPU::WAVE_REDUCE_SUB_PSEUDO_I32:
     return lowerWaveReduce(MI, *BB, *getSubtarget(), AMDGPU::S_SUB_I32);
   case AMDGPU::WAVE_REDUCE_SUB_PSEUDO_U64:
     return lowerWaveReduce(MI, *BB, *getSubtarget(), AMDGPU::S_SUB_U64_PSEUDO);
   case AMDGPU::WAVE_REDUCE_FSUB_PSEUDO_F32:
     return lowerWaveReduce(MI, *BB, *getSubtarget(), AMDGPU::V_SUB_F32_e64);
+  case AMDGPU::WAVE_REDUCE_FSUB_PSEUDO_F64:
+    return lowerWaveReduce(MI, *BB, *getSubtarget(), AMDGPU::V_SUB_F32_e32);
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jmmartinez wrote:

Since we use the `V_SUB_F32_e32` for `F64`, lets at least add a comment to not surprise somebody reading this code in the future.

https://github.com/llvm/llvm-project/pull/170812