[compiler-rt] [sanitizer] Add missing bitcast to sanitizer_bitvector_test.cpp (PR #192090)

[Thurston Dang via llvm-commits]

https://github.com/thurstond created https://github.com/llvm/llvm-project/pull/192090

Fixes buildbot report
(https://lab.llvm.org/buildbot/#/builders/66/builds/29379):

/home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/lib/sanitizer_common/tests/sanitizer_bitvector_test.cpp:64:29: error: format specifies type 'unsigned long' but the argument has type 'uptr' (aka 'unsigned int') [-Werror,-Wformat]
   64 |     fprintf(stderr, "%lu ", idx);
      |                      ~~~    ^~~
      |                      %u

>From d3ea0bd851c434133bcff95e9efd2efdf0b196fd Mon Sep 17 00:00:00 2001
From: Thurston Dang <thurston at google.com>
Date: Tue, 14 Apr 2026 17:18:08 +0000
Subject: [PATCH] [sanitizer] Add missing bitcast

Fixes buildbot report
(https://lab.llvm.org/buildbot/#/builders/66/builds/29379):

/home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/lib/sanitizer_common/tests/sanitizer_bitvector_test.cpp:64:29: error: format specifies type 'unsigned long' but the argument has type 'uptr' (aka 'unsigned int') [-Werror,-Wformat]
   64 |     fprintf(stderr, "%lu ", idx);
      |                      ~~~    ^~~
      |                      %u
---
 .../lib/sanitizer_common/tests/sanitizer_bitvector_test.cpp     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler-rt/lib/sanitizer_common/tests/sanitizer_bitvector_test.cpp b/compiler-rt/lib/sanitizer_common/tests/sanitizer_bitvector_test.cpp
index 9f51d0cb0c68e..dc22dfd59fd90 100644
--- a/compiler-rt/lib/sanitizer_common/tests/sanitizer_bitvector_test.cpp
+++ b/compiler-rt/lib/sanitizer_common/tests/sanitizer_bitvector_test.cpp
@@ -61,7 +61,7 @@ void Print(const BV &bv) {
   t.copyFrom(bv);
   while (!t.empty()) {
     uptr idx = t.getAndClearFirstOne();
-    fprintf(stderr, "%lu ", idx);
+    fprintf(stderr, "%lu ", (unsigned long)idx);
   }
   fprintf(stderr, "\n");
 }