[llvm] r290793 - Avoid const_cast; NFC

[Sanjoy Das via llvm-commits]

Author: sanjoy
Date: Sat Dec 31 16:12:31 2016
New Revision: 290793

URL: http://llvm.org/viewvc/llvm-project?rev=290793&view=rev
Log:
Avoid const_cast; NFC

Modified:
    llvm/trunk/lib/Analysis/ValueTracking.cpp

Modified: llvm/trunk/lib/Analysis/ValueTracking.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Analysis/ValueTracking.cpp?rev=290793&r1=290792&r2=290793&view=diff
==============================================================================
--- llvm/trunk/lib/Analysis/ValueTracking.cpp (original)
+++ llvm/trunk/lib/Analysis/ValueTracking.cpp Sat Dec 31 16:12:31 2016
@@ -3656,9 +3656,10 @@ bool llvm::isGuaranteedToTransferExecuti
     return false;
 
   // Calls can throw, or contain an infinite loop, or kill the process.
-  if (CallSite CS = CallSite(const_cast<Instruction*>(I))) {
+  if (auto CS = ImmutableCallSite(I)) {
     // Calls which don't write to arbitrary memory are safe.
-    // FIXME: Ignoring infinite loops without any side-effects is too aggressive,
+    // FIXME: Ignoring infinite loops without any side-effects is too
+    // aggressive,
     // but it's consistent with other passes. See http://llvm.org/PR965 .
     // FIXME: This isn't aggressive enough; a call which only writes to a
     // global is guaranteed to return.