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

[via cfe-commits]

https://github.com/Andres-Salamanca created https://github.com/llvm/llvm-project/pull/142218

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

>From 9199b6bf30ac87a38bb89c33126a101212ea4c9e Mon Sep 17 00:00:00 2001
From: Andres Salamanca <andrealebarbaritos at gmail.com>
Date: Fri, 30 May 2025 16:16:12 -0500
Subject: [PATCH] Update CHECK pattern to use regex for new def of RV

---
 clang/test/CIR/Lowering/func-simple.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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]]