[Mlir-commits] [mlir] [mlir][SCFToEmitC] Don't convert unsupported types in EmitC (PR #131786)

[Longsheng Mou]

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@@ -322,7 +322,11 @@ void SCFToEmitCPass::runOnOperation() {
   // Fallback converter
   // See note https://mlir.llvm.org/docs/DialectConversion/#type-converter
   // Type converters are called most to least recently inserted
-  typeConverter.addConversion([](Type t) { return t; });
+  typeConverter.addConversion([](Type type) -> std::optional<Type> {
+    if (emitc::isSupportedEmitCType(type))
+      return type;
+    return {};
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CoTinker wrote:

What the comments change to?

https://github.com/llvm/llvm-project/pull/131786