From 979a1e73529677230a9090ecc6caf7af8504da1b Mon Sep 17 00:00:00 2001
From: Evgeniy Stepanov <eugeni.stepanov@gmail.com>
Date: Wed, 21 Nov 2012 13:00:04 +0000
Subject: [PATCH] Allow PopStackFrames leave the stack empty.

llvm-svn: 168425
---
 compiler-rt/lib/sanitizer_common/sanitizer_stacktrace.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_stacktrace.cc b/compiler-rt/lib/sanitizer_common/sanitizer_stacktrace.cc
index f0a5898..4da41ee 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_stacktrace.cc
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_stacktrace.cc
@@ -144,7 +144,7 @@ void StackTrace::FastUnwindStack(uptr pc, uptr bp,
 }
 
 void StackTrace::PopStackFrames(uptr count) {
-  CHECK(size > count);
+  CHECK(size >= count);
   size -= count;
   for (uptr i = 0; i < size; i++) {
     trace[i] = trace[i + count];
-- 
2.7.4