[Mlir-commits] [mlir] [mlir][arith] Add overflow flags support to arith ops (PR #77211)

[Adrian Kuegel]

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@@ -49,4 +49,61 @@ def ArithFastMathInterface : OpInterface<"ArithFastMathInterface"> {
   ];
 }
 
+def ArithIntegerOverflowFlagsInterface : OpInterface<"ArithIntegerOverflowFlagsInterface"> {
+  let description = [{
+    Access to op integer overflow flags.
+  }];
+
+  let cppNamespace = "::mlir::arith";
+
+  let methods = [
+    InterfaceMethod<
+      /*desc=*/        "Returns an IntegerOverflowFlagsAttr attribute for the operation",
+      /*returnType=*/  "IntegerOverflowFlagsAttr",
+      /*methodName=*/  "getOverflowAttr",
+      /*args=*/        (ins),
+      /*methodBody=*/  [{}],
+      /*defaultImpl=*/ [{
+        auto op = cast<ConcreteOp>(this->getOperation());
+        return op.getOverflowFlagsAttr();
+      }]
+      >,
+    InterfaceMethod<
+      /*desc=*/        "Returns whether the operation has the No Unsigned Wrap keyword",
+      /*returnType=*/  "bool",
+      /*methodName=*/  "hasNoUnsignedWrap",
+      /*args=*/        (ins),
+      /*methodBody=*/  [{}],
+      /*defaultImpl=*/ [{
+        auto op = cast<ConcreteOp>(this->getOperation());
+        IntegerOverflowFlags flags = op.getOverflowFlagsAttr().getValue();
+        return bitEnumContainsAll(flags, IntegerOverflowFlags::nuw);
+      }]
+      >,
+    InterfaceMethod<
+      /*desc=*/        "Returns whether the operation has the No Signed Wrap keyword",
+      /*returnType=*/  "bool",
+      /*methodName=*/  "hasNoSignedWrap",
+      /*args=*/        (ins),
+      /*methodBody=*/  [{}],
+      /*defaultImpl=*/ [{
+        auto op = cast<ConcreteOp>(this->getOperation());
+        IntegerOverflowFlags flags = op.getOverflowFlagsAttr().getValue();
+        return bitEnumContainsAll(flags, IntegerOverflowFlags::nsw);
+      }]
+      >,
+    StaticInterfaceMethod<
+      /*desc=*/        [{Returns the name of the IntegerOveflowFlagsAttr attribute
----------------
akuegel wrote:

nit: typo, Oveflow -> Overflow

https://github.com/llvm/llvm-project/pull/77211