[Mlir-commits] [mlir] [MLIR][NVVM] Add support for dp4a instructions (PR #139043)

[Durgadoss R]

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@@ -1590,6 +1597,25 @@ static void nvvmInferResultRanges(Operation *op, Value result,
   }
 }
 
+llvm::Intrinsic::ID Dp4aOp::getIntrinsicID(NVVM::DP4aType a_type,
+                                           NVVM::DP4aType b_type) {
+  bool is_a_siext = a_type == NVVM::DP4aType::S8;
+  bool is_b_siext = b_type == NVVM::DP4aType::S8;
+  unsigned type = (is_a_siext << 1) | is_b_siext;
+  switch (type) {
+  case 0:
+    return llvm::Intrinsic::nvvm_idp4a_u_u;
+  case 1:
+    return llvm::Intrinsic::nvvm_idp4a_u_s;
+  case 2:
+    return llvm::Intrinsic::nvvm_idp4a_s_u;
+  case 3:
+    return llvm::Intrinsic::nvvm_idp4a_s_s;
+  default:
+    llvm_unreachable("Invalid DP4a type");
+  }
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durga4github wrote:

nice!


https://github.com/llvm/llvm-project/pull/139043