static cl::opt<bool> ClInstrumentAtomics("asan-instrument-atomics",
cl::desc("instrument atomic instructions (rmw, cmpxchg)"),
cl::Hidden, cl::init(true));
+// This flags limits the number of instructions to be instrumented
+// in any given BB. Normally, this should be set to unlimited (INT_MAX),
+// but due to http://llvm.org/bugs/show_bug.cgi?id=12652 we temporary
+// set it to 10000.
+static cl::opt<int> ClMaxInsnsToInstrumentPerBB("asan-max-ins-per-bb",
+ cl::init(10000),
+ cl::desc("maximal number of instructions to instrument in any given BB"),
+ cl::Hidden);
// This flag may need to be replaced with -f[no]asan-stack.
static cl::opt<bool> ClStack("asan-stack",
cl::desc("Handle stack memory"), cl::Hidden, cl::init(true));
for (Function::iterator FI = F.begin(), FE = F.end();
FI != FE; ++FI) {
TempsToInstrument.clear();
+ int NumInsnsPerBB = 0;
for (BasicBlock::iterator BI = FI->begin(), BE = FI->end();
BI != BE; ++BI) {
if (LooksLikeCodeInBug11395(BI)) return false;
continue;
}
ToInstrument.push_back(BI);
+ NumInsnsPerBB++;
+ if (NumInsnsPerBB >= ClMaxInsnsToInstrumentPerBB)
+ break;
}
}