[Mlir-commits] [mlir] [mlir][AMDGPU] Add PermlaneOp (PR #154345)

[Jakub Kuderski]

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@@ -656,6 +656,37 @@ def AMDGPU_SwizzleBitModeOp : AMDGPU_Op<"swizzle_bitmode",
   }];
 }
 
+def AMDGPU_PermlanePerm : I32EnumAttr<"PermlanePerm",
+    "The possible permutations for a permlane operation",
+    [
+      I32EnumAttrCase<"swap_16",  0>,
+      I32EnumAttrCase<"swap_32",  1>,
+    ]> {
+  let genSpecializedAttr = 0;
+  let cppNamespace = "::mlir::amdgpu";
+}
+
+def AMDGPU_PermlanePermAttr : EnumAttr<AMDGPU_Dialect, AMDGPU_PermlanePerm,
+  "permlane_perm">;
+
+def AMDGPU_PermlaneOp : AMDGPU_Op<"permlane", [Pure, AllTypesMatch<["result", "src"]>]>,
+Arguments<(ins AnyIntegerOrFloatOr1DVector:$src, 
+               AMDGPU_PermlanePermAttr:$kind,
+               DefaultValuedAttr<BoolAttr, "false">:$fi,
+               DefaultValuedAttr<BoolAttr, "false">:$bound_ctrl)> {
+  let summary = "AMDGPU permlane op";
+  let description = [{
+    High-level wrapper on `rocdl.permlane` variants.
+
+    Supports arbitrary int/float/vector types, which will be repacked to i32 and
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kuhar wrote:

Can you describe what `kind`, `fi`, and `bound_ctrl` are? This description doesn't really explain the op semantics.

https://github.com/llvm/llvm-project/pull/154345