[clang] [-Wunsafe-buffer-usage][NFC] Add testcase for not-unsafe pointer (PR #80076)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang-analysis

Author: None (jkorous-apple)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/80076.diff


2 Files Affected:

- (modified) clang/lib/Analysis/UnsafeBufferUsage.cpp (+6-1) 
- (modified) clang/test/SemaCXX/warn-unsafe-buffer-usage-fixits-pointer-access.cpp (+1) 


``````````diff
diff --git a/clang/lib/Analysis/UnsafeBufferUsage.cpp b/clang/lib/Analysis/UnsafeBufferUsage.cpp
index 7df706beb2266..9046491c9e865 100644
--- a/clang/lib/Analysis/UnsafeBufferUsage.cpp
+++ b/clang/lib/Analysis/UnsafeBufferUsage.cpp
@@ -1081,11 +1081,16 @@ class UUCAddAssignGadget : public FixableGadget {
   }
 
   static Matcher matcher() {
+    // clang-format off
     return stmt(isInUnspecifiedUntypedContext(expr(ignoringImpCasts(
         binaryOperator(hasOperatorName("+="),
-                       hasLHS(declRefExpr(toSupportedVariable())),
+                       hasLHS(
+                        declRefExpr(
+                          hasPointerType(),
+                          toSupportedVariable())),
                        hasRHS(expr().bind(OffsetTag)))
             .bind(UUCAddAssignTag)))));
+    // clang-format on
   }
 
   virtual std::optional<FixItList> getFixits(const Strategy &S) const override;
diff --git a/clang/test/SemaCXX/warn-unsafe-buffer-usage-fixits-pointer-access.cpp b/clang/test/SemaCXX/warn-unsafe-buffer-usage-fixits-pointer-access.cpp
index 20d9d33195a6b..d1dd26795ba68 100644
--- a/clang/test/SemaCXX/warn-unsafe-buffer-usage-fixits-pointer-access.cpp
+++ b/clang/test/SemaCXX/warn-unsafe-buffer-usage-fixits-pointer-access.cpp
@@ -85,6 +85,7 @@ void unsafe_method_invocation_single_param() {
 
 void safe_method_invocation_single_param() {
   int* p = new int[10];
+  // CHECK-NO: fix-it:"{{.*}}":{[[@LINE-1]]:{{.*}}-[[@LINE-1]]:{{.*}}}
   foo(p);
 }
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/80076