[mlir][emitc] Fix invalid syntax in example of emitc.return

[hatoo]

A return type of emitc.func must be specified with -> instead of :.
I've verified the syntax using mlir-translate --mlir-to-cpp.

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[llvmbot]

@llvm/pr-subscribers-mlir

@llvm/pr-subscribers-mlir-emitc

Author: None (hatoo)

Changes

A return type of emitc.func must be specified with -> instead of :.
I've verified the syntax using mlir-translate --mlir-to-cpp.

---

Full diff: https://github.com/llvm/llvm-project/pull/121112.diff

1 Files Affected:

• (modified) mlir/include/mlir/Dialect/EmitC/IR/EmitC.td (+1-1)

diff --git a/mlir/include/mlir/Dialect/EmitC/IR/EmitC.td b/mlir/include/mlir/Dialect/EmitC/IR/EmitC.td
index fc5a33541533a7..74c5218df58a28 100644
--- a/mlir/include/mlir/Dialect/EmitC/IR/EmitC.td
+++ b/mlir/include/mlir/Dialect/EmitC/IR/EmitC.td
@@ -727,7 +727,7 @@ def EmitC_ReturnOp : EmitC_Op<"return", [Pure, HasParent<"FuncOp">,
     Example:
 
     ```mlir
-    emitc.func @foo() : (i32) {
+    emitc.func @foo() -> (i32) {
       ...
       emitc.return %0 : i32
     }

[marbre]

Good catch, thanks!

[marbre]

Let me know if I should merge on your behalf.

[hatoo]

Let me know if I should merge on your behalf.

I don't have permission to merge.
Could you please merge this instead of me?

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[marbre]

I don't have permission to merge. Could you please merge this instead of me?

Sure! Thanks again for the fix.