[llvm-commits] [llvm] r168864 - in /llvm/trunk/lib/Transforms/Instrumentation: AddressSanitizer.cpp ThreadSanitizer.cpp

[Chandler Carruth]

On Thu, Nov 29, 2012 at 1:54 AM, Kostya Serebryany <kcc at google.com> wrote:
> @@ -857,6 +861,7 @@
>    if (BL->isIn(F)) return false;
>    if (&F == AsanCtorFunction) return false;
>    DEBUG(dbgs() << "ASAN instrumenting:\n" << F << "\n");
> +  initializeCallbacks(*F.getParent());

It would probably be worthwhile to add an early exit for empty functions here.

You could also (I think) early exit for any function with the readnone
attribute which has no alloca instructions in its first BB.

Of course, it's doubtful any of this will have a terribly significant
impact on compile time.