Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/compiler-rt/test/asan/TestCases/frexp_interceptor.cc

@@ -0,0 +1,16 @@
+// RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
+
+// Test the frexp() interceptor.
+
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+int main() {
+  double x = 3.14;
+  int *exp = (int*)malloc(sizeof(int));
+  free(exp);
+  double y = frexp(x, exp);
+  // CHECK: use-after-free
+  // CHECK: SUMMARY
+  return 0;
+}