[llvm] r303197 - ShrinkWrap: Add skipFunction() call

[Matthias Braun via llvm-commits]

Author: matze
Date: Tue May 16 13:43:30 2017
New Revision: 303197

URL: http://llvm.org/viewvc/llvm-project?rev=303197&view=rev
Log:
ShrinkWrap: Add skipFunction() call

ShrinkWrapping is a performance optimization that can safely be skipped,
so we can add `if (!skipFunction()) return;`

Modified:
    llvm/trunk/lib/CodeGen/ShrinkWrap.cpp

Modified: llvm/trunk/lib/CodeGen/ShrinkWrap.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/ShrinkWrap.cpp?rev=303197&r1=303196&r2=303197&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/ShrinkWrap.cpp (original)
+++ llvm/trunk/lib/CodeGen/ShrinkWrap.cpp Tue May 16 13:43:30 2017
@@ -425,7 +425,7 @@ static bool isIrreducibleCFG(const Machi
 }
 
 bool ShrinkWrap::runOnMachineFunction(MachineFunction &MF) {
-  if (MF.empty() || !isShrinkWrapEnabled(MF))
+  if (skipFunction(*MF.getFunction()) || MF.empty() || !isShrinkWrapEnabled(MF))
     return false;
 
   DEBUG(dbgs() << "**** Analysing " << MF.getName() << '\n');