[MLIR] Reference issue for implicit trunc TODOs (NFC)

Author: nikic

mlir/include/mlir/IR/BuiltinAttributes.td

@@ -702,6 +702,7 @@ def Builtin_IntegerAttr : Builtin_Attr<"Integer", "integer",
       }
 
       // TODO: Avoid implicit trunc?
+      // See https://github.com/llvm/llvm-project/issues/112510.
       IntegerType intTy = ::llvm::cast<IntegerType>(type);
       APInt apValue(intTy.getWidth(), value, intTy.isSignedInteger(),
                     /*implicitTrunc=*/true);

mlir/lib/IR/Builders.cpp

@@ -269,6 +269,7 @@ IntegerAttr Builder::getIntegerAttr(Type type, int64_t value) {
   if (type.isIndex())
     return IntegerAttr::get(type, APInt(64, value));
   // TODO: Avoid implicit trunc?
+  // See https://github.com/llvm/llvm-project/issues/112510.
   return IntegerAttr::get(type, APInt(type.getIntOrFloatBitWidth(), value,
                                       type.isSignedInteger(),
                                       /*implicitTrunc=*/true));