Fix asserts in APInt contructor

Author: jorickert

mlir/lib/Dialect/PDL/IR/Builtins.cpp

@@ -63,7 +63,8 @@ LogicalResult static unaryOp(PatternRewriter &rewriter, PDLResultList &results,
               ? std::pow(2, operandIntAttr.getValue().getZExtValue())
               : std::pow(2, operandIntAttr.getValue().getSExtValue());
 
-      APInt resultInt(bitWidth, resultVal, integerType.isSigned());
+      APInt resultInt(bitWidth, resultVal, integerType.isSigned(),
+                      /*implicitTrunc*/ true);
 
       bool isOverflow = integerType.isSigned()
                             ? resultInt.slt(operandIntAttr.getValue())

mlir/lib/Dialect/Tosa/Transforms/TosaFolders.cpp

@@ -1540,9 +1540,11 @@ struct TosaFoldConstantMatMul
 
     // Convert int64_t to the correct output type.
     std::vector<APInt> apintValues;
-    llvm::transform(values, std::back_inserter(apintValues),
-                    [&](const int64_t &val) {
-                      APInt apIntVal(baseType.getIntOrFloatBitWidth(), val);
+    llvm::transform(
+        values, std::back_inserter(apintValues), [&](const int64_t &val) {
+          APInt apIntVal(baseType.getIntOrFloatBitWidth(), val,
+                         /*isSigned=*/true); // tosa-mlir uses signless
+                                             // instead of signed
                       return apIntVal;
                     });
     return DenseElementsAttr::get(outputType, apintValues);