[Mlir-commits] [mlir] [mlir][LLVMIR] Add IFuncOp to LLVM dialect (PR #147697)

[Tobias Gysi]

================
@@ -0,0 +1,41 @@
+// RUN: mlir-opt %s -split-input-file --verify-roundtrip | FileCheck %s
+
+// CHECK: llvm.mlir.ifunc external @ifunc : !llvm.func<f32 (i64)>, !llvm.ptr @resolver
+llvm.mlir.ifunc @ifunc : !llvm.func<f32 (i64)>, !llvm.ptr @resolver
+llvm.func @resolver() -> !llvm.ptr {
+  %0 = llvm.mlir.constant(333 : i64) : i64
+  %1 = llvm.inttoptr %0 : i64 to !llvm.ptr
+  llvm.return %1 : !llvm.ptr
+}
+
+// -----
+
+// CHECK: llvm.mlir.ifunc linkonce_odr hidden @ifunc : !llvm.func<f32 (i64)>, !llvm.ptr @resolver {dso_local}
+llvm.mlir.ifunc linkonce_odr hidden @ifunc : !llvm.func<f32 (i64)>, !llvm.ptr @resolver {dso_local}
+llvm.func @resolver() -> !llvm.ptr {
+  %0 = llvm.mlir.constant(333 : i64) : i64
+  %1 = llvm.inttoptr %0 : i64 to !llvm.ptr
+  llvm.return %1 : !llvm.ptr
+}
+
+// -----
+
+// CHECK: llvm.mlir.ifunc private @ifunc : !llvm.func<f32 (i64)>, !llvm.ptr @resolver {dso_local}
+llvm.mlir.ifunc private @ifunc : !llvm.func<f32 (i64)>, !llvm.ptr @resolver {dso_local}
+llvm.func @resolver() -> !llvm.ptr {
+  %0 = llvm.mlir.constant(333 : i64) : i64
+  %1 = llvm.inttoptr %0 : i64 to !llvm.ptr
+  llvm.return %1 : !llvm.ptr
+}
+
+// -----
+
+// CHECK: llvm.mlir.ifunc weak @ifunc : !llvm.func<f32 (i64)>, !llvm.ptr @resolver
+
----------------
gysit wrote:

```suggestion
```

nit:

https://github.com/llvm/llvm-project/pull/147697