================
@@ -2847,6 +2847,37 @@ def ByteSwapOp : CIR_BitOpBase<"byte_swap",
CIR_UIntOfWidths<[16, 32, 64]>> {
}];
}
+//===----------------------------------------------------------------------===//
+// RotateOp
+//===----------------------------------------------------------------------===//
+
+def RotateOp : CIR_Op<"rotate", [Pure, SameOperandsAndResultType]> {
+ let summary = "Rotate the bits in the operand integer";
+ let description = [{
+ The `cir.rotate` rotates the bits in `input` by the given amount `amount`.
+ The rotate direction is specified by the `left` and `right` keyword.
+
+ The width of the input integer must be either 8, 16, 32, or 64. `input`,
+ `amount`, and `result` must be of the same type.
+
+ Example:
+
+ ```mlir
+ %r = cir.rotate left %0, %1 -> !u32i
+ %r = cir.rotate right %0, %1 -> !u32i
+ ```
+ }];
+
+ let results = (outs CIR_IntType:$result);
+ let arguments = (ins CIR_IntType:$input, CIR_IntType:$amount,
+ UnitAttr:$isRotateLeft);
+
+ let assemblyFormat = [{
+ (`left` $isRotateLeft^) : (`right`)?
+ $input `,` $amount `:` type($result) attr-dict
+ }];
+}
----------------
xlauko wrote:
```suggestion
}];
let extraClassDeclaration = [{
bool isRotateLeft() const { return getRotateLeft(); }
bool isRotateRight() const { return !isRotateLeft(); }
}];
}
```
https://github.com/llvm/llvm-project/pull/148426
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