[compiler-rt] r212272 - [asan] Fix unused variable warning.

[Evgeniy Stepanov]

Author: eugenis
Date: Thu Jul  3 09:14:59 2014
New Revision: 212272

URL: http://llvm.org/viewvc/llvm-project?rev=212272&view=rev
Log:
[asan] Fix unused variable warning.

Modified:
    compiler-rt/trunk/lib/sanitizer_common/sanitizer_linux_libcdep.cc

Modified: compiler-rt/trunk/lib/sanitizer_common/sanitizer_linux_libcdep.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/sanitizer_linux_libcdep.cc?rev=212272&r1=212271&r2=212272&view=diff
==============================================================================
--- compiler-rt/trunk/lib/sanitizer_common/sanitizer_linux_libcdep.cc (original)
+++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_linux_libcdep.cc Thu Jul  3 09:14:59 2014
@@ -302,11 +302,11 @@ void InitTlsSize() {
 static atomic_uintptr_t kThreadDescriptorSize;
 
 uptr ThreadDescriptorSize() {
-  char buf[64];
   uptr val = atomic_load(&kThreadDescriptorSize, memory_order_relaxed);
   if (val)
     return val;
 #ifdef _CS_GNU_LIBC_VERSION
+  char buf[64];
   uptr len = confstr(_CS_GNU_LIBC_VERSION, buf, sizeof(buf));
   if (len < sizeof(buf) && internal_strncmp(buf, "glibc 2.", 8) == 0) {
     char *end;