[clang] [CIR] [NFC] Update CHECK pattern to use regex for new def of RV (PR #142218)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-clang

@llvm/pr-subscribers-clangir

Author: None (Andres-Salamanca)

<details>
<summary>Changes</summary>

Found this minor nit: it was using a previously defined RV.

---
Full diff: https://github.com/llvm/llvm-project/pull/142218.diff


1 Files Affected:

- (modified) clang/test/CIR/Lowering/func-simple.cpp (+1-1) 


``````````diff
diff --git a/clang/test/CIR/Lowering/func-simple.cpp b/clang/test/CIR/Lowering/func-simple.cpp
index 3d6a837daf6e5..9f50d7ae2dbb5 100644
--- a/clang/test/CIR/Lowering/func-simple.cpp
+++ b/clang/test/CIR/Lowering/func-simple.cpp
@@ -41,7 +41,7 @@ int scopes() {
 
 long longfunc() { return 42l; }
 // CHECK: define{{.*}} i64 @_Z8longfuncv() {
-// CHECK:   %[[RV]] = alloca i64, i64 1, align 8
+// CHECK:   %[[RV:.*]] = alloca i64, i64 1, align 8
 // CHECK:   store i64 42, ptr %[[RV]], align 4
 // CHECK:   %[[R:.*]] = load i64, ptr %[[RV]], align 4
 // CHECK:   ret i64 %[[R]]

``````````

</details>


https://github.com/llvm/llvm-project/pull/142218