================
@@ -2661,6 +2661,55 @@ def BitPopcountOp : CIR_BitOpBase<"bit.popcnt",
}];
}
+def BitReverseOp : CIR_BitOpBase<"bit.reverse", CIR_UIntOfWidths<[8, 16, 32,
64]>> {
+ let summary = "Reverse the bit pattern of the operand integer";
+ let description = [{
+ The `cir.bit.reverse` operation reverses the bits of the operand integer.
+ Its only argument must be of unsigned integer types of width 8, 16, 32, or
+ 64.
+
+ This operation covers the C/C++ builtin function `__builtin_bitreverse`.
+
+ Example:
+
+ ```mlir
+ %1 = cir.bit.reverse %0 : !u32i
----------------
xlauko wrote:
```suggestion
%1 = cir.bit.reverse( %0 : !u32i) : !u32i
```
https://github.com/llvm/llvm-project/pull/147200
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