[llvm] r310242 - [asan] Fix asan dynamic shadow check before copyArgsPassedByValToAllocas

[Vitaly Buka via llvm-commits]

Author: vitalybuka
Date: Mon Aug  7 00:35:33 2017
New Revision: 310242

URL: http://llvm.org/viewvc/llvm-project?rev=310242&view=rev
Log:
[asan] Fix asan dynamic shadow check before copyArgsPassedByValToAllocas

Modified:
    llvm/trunk/lib/Transforms/Instrumentation/AddressSanitizer.cpp

Modified: llvm/trunk/lib/Transforms/Instrumentation/AddressSanitizer.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Instrumentation/AddressSanitizer.cpp?rev=310242&r1=310241&r2=310242&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Instrumentation/AddressSanitizer.cpp (original)
+++ llvm/trunk/lib/Transforms/Instrumentation/AddressSanitizer.cpp Mon Aug  7 00:35:33 2017
@@ -756,7 +756,7 @@ struct FunctionStackPoisoner : public In
   bool runOnFunction() {
     if (!ClStack) return false;
 
-    if (ClRedzoneByvalArgs && !ClForceDynamicShadow)
+    if (ClRedzoneByvalArgs && Mapping.Offset != kDynamicShadowSentinel)
       copyArgsPassedByValToAllocas();
 
     // Collect alloca, ret, lifetime instructions etc.