[Mlir-commits] [mlir] 6ad662d - [mlir][amdgpu] Add Inliner interface (#162873)

[llvmlistbot at llvm.org]

Author: Ivan Butygin
Date: 2025-10-10T21:34:00+03:00
New Revision: 6ad662d32294006dc1d71f70cee8eabdf9b0c415

URL: https://github.com/llvm/llvm-project/commit/6ad662d32294006dc1d71f70cee8eabdf9b0c415
DIFF: https://github.com/llvm/llvm-project/commit/6ad662d32294006dc1d71f70cee8eabdf9b0c415.diff

LOG: [mlir][amdgpu] Add Inliner interface (#162873)

All the `amdgpu` dialect ops can be inlined.

---------

Signed-off-by: Ivan Butygin <ivan.butygin at gmail.com>

Added: 
    mlir/test/Dialect/AMDGPU/inlining.mlir

Modified: 
    mlir/lib/Dialect/AMDGPU/IR/AMDGPUDialect.cpp

Removed: 
    


################################################################################
diff  --git a/mlir/lib/Dialect/AMDGPU/IR/AMDGPUDialect.cpp b/mlir/lib/Dialect/AMDGPU/IR/AMDGPUDialect.cpp
index d5c71905f7b4a..f405d0cc7aa02 100644
--- a/mlir/lib/Dialect/AMDGPU/IR/AMDGPUDialect.cpp
+++ b/mlir/lib/Dialect/AMDGPU/IR/AMDGPUDialect.cpp
@@ -26,6 +26,7 @@
 #include "mlir/IR/OpImplementation.h"
 #include "mlir/IR/PatternMatch.h"
 #include "mlir/IR/TypeUtilities.h"
+#include "mlir/Transforms/InliningUtils.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/TypeSwitch.h"
@@ -40,6 +41,15 @@ using namespace mlir::amdgpu;
 
 #include "mlir/Dialect/AMDGPU/IR/AMDGPUDialect.cpp.inc"
 
+namespace {
+struct AMDGPUInlinerInterface final : DialectInlinerInterface {
+  using DialectInlinerInterface::DialectInlinerInterface;
+  bool isLegalToInline(Operation *, Region *, bool, IRMapping &) const final {
+    return true;
+  }
+};
+} // namespace
+
 void AMDGPUDialect::initialize() {
   addOperations<
 #define GET_OP_LIST
@@ -49,6 +59,7 @@ void AMDGPUDialect::initialize() {
 #define GET_ATTRDEF_LIST
 #include "mlir/Dialect/AMDGPU/IR/AMDGPUAttributes.cpp.inc"
       >();
+  addInterfaces<AMDGPUInlinerInterface>();
 }
 
 //===----------------------------------------------------------------------===//

diff  --git a/mlir/test/Dialect/AMDGPU/inlining.mlir b/mlir/test/Dialect/AMDGPU/inlining.mlir
new file mode 100644
index 0000000000000..33fb635d0156b
--- /dev/null
+++ b/mlir/test/Dialect/AMDGPU/inlining.mlir
@@ -0,0 +1,14 @@
+// RUN: mlir-opt %s --inline | FileCheck %s
+
+func.func @calee(%arg0 : f32) -> f32 {
+  %0 = amdgpu.permlane_swap %arg0 32 : f32
+  func.return %0 : f32
+}
+
+// CHECK-LABEL: func @caller
+func.func @caller(%arg0 : f32) -> f32 {
+  // CHECK-NOT: call
+  //     CHECK: amdgpu.permlane_swap
+  %0 = call @calee(%arg0) : (f32) -> f32
+  func.return %0 : f32
+}