[Mlir-commits] [mlir] [ROCDL] Added global/flag data prefetch ops (PR #171449)

[Jakub Kuderski]

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@@ -1173,6 +1173,31 @@ def ROCDL_RawBufferAtomicCmpSwap :
   }];
 }
 
+//===---------------------------------------------------------------------===//
+// Memory prefetch intrinsics
+
+def ROCDL_GlobalPrefetchOp :
+  ROCDL_IntrOp<"global.prefetch", [], [], [], 0, 0, 0, 0, [1], ["scope"]>,
+  Arguments<(ins Arg<LLVM_PointerInAddressSpace<1>, "", []>:$ptr, I32Attr:$scope)> {
+  let description = [{
+    Prefetches 1 byte of data per lane from global memory into the WGP-cache or L2-cache.
+    Available on gfx1250+.
+  }];
+  let results = (outs);
+  let assemblyFormat = "$ptr `scope` $scope attr-dict";
+}
+
+def ROCDL_FlatPrefetchOp :
+  ROCDL_IntrOp<"flat.prefetch", [], [], [], 0, 0, 0, 0, [1], ["scope"]>,
+  Arguments<(ins Arg<LLVM_PointerInAddressSpace<0>, "", []>:$ptr, I32Attr:$scope)> {
+  let description = [{
+    Prefetches 1 byte of data per lane using flat-memory addresses into the WGP-cache or L2-cache.
+    Available on gfx1250+.
+  }];
+  let results = (outs);
+  let assemblyFormat = "$ptr `scope` $scope attr-dict";
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kuhar wrote:

also here

https://github.com/llvm/llvm-project/pull/171449