Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/compiler-rt/test/msan/icmp_slt_allones.cc

@@ -0,0 +1,20 @@
+// PR24561
+// RUN: %clangxx_msan -O2 -g %s -o %t && %run %t
+
+#include <stdio.h>
+
+struct A {
+  int c1 : 7;
+  int c8 : 1;
+  int c9 : 1;
+  A();
+};
+
+__attribute__((noinline)) A::A() : c8(1) {}
+
+int main() {
+  A* a = new A();
+  if (a->c8 == 0)
+    printf("zz\n");
+  return 0;
+}