[llvm-commits] [llvm] r147953 - /llvm/trunk/lib/Transforms/Instrumentation/AddressSanitizer.cpp

[Kostya Serebryany]

Author: kcc
Date: Wed Jan 11 12:15:23 2012
New Revision: 147953

URL: http://llvm.org/viewvc/llvm-project?rev=147953&view=rev
Log:
[asan] extend the workaround for http://llvm.org/bugs/show_bug.cgi?id=11395: don't instrument the function at all on x86_32 if it has a large asm blob

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=147953&r1=147952&r2=147953&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Instrumentation/AddressSanitizer.cpp (original)
+++ llvm/trunk/lib/Transforms/Instrumentation/AddressSanitizer.cpp Wed Jan 11 12:15:23 2012
@@ -617,6 +617,7 @@
     TempsToInstrument.clear();
     for (BasicBlock::iterator BI = FI->begin(), BE = FI->end();
          BI != BE; ++BI) {
+      if (LooksLikeCodeInBug11395(BI)) return false;
       if ((isa<LoadInst>(BI) && ClInstrumentReads) ||
           (isa<StoreInst>(BI) && ClInstrumentWrites)) {
         Value *Addr = getLDSTOperand(BI);
@@ -792,7 +793,6 @@
     BasicBlock &BB = *FI;
     for (BasicBlock::iterator BI = BB.begin(), BE = BB.end();
          BI != BE; ++BI) {
-      if (LooksLikeCodeInBug11395(BI)) return false;
       if (isa<ReturnInst>(BI)) {
           RetVec.push_back(BI);
           continue;