[llvm] r340638 - [AST] Simplify code minorly using pattern match [NFC]

[Philip Reames via llvm-commits]

Author: reames
Date: Fri Aug 24 12:13:39 2018
New Revision: 340638

URL: http://llvm.org/viewvc/llvm-project?rev=340638&view=rev
Log:
[AST] Simplify code minorly using pattern match [NFC]


Modified:
    llvm/trunk/lib/Transforms/Scalar/LICM.cpp

Modified: llvm/trunk/lib/Transforms/Scalar/LICM.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/LICM.cpp?rev=340638&r1=340637&r2=340638&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/LICM.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/LICM.cpp Fri Aug 24 12:13:39 2018
@@ -681,14 +681,10 @@ bool llvm::canSinkOrHoistInst(Instructio
     if (CI->mayThrow())
       return false;
 
-    if (Function *F = CI->getCalledFunction())
-        switch (F->getIntrinsicID()) {
-        default: break;
-        // TODO: support invariant.start, and experimental.guard here
-        case Intrinsic::assume:
-          // Assumes don't actually alias anything or throw
-          return true;
-        };
+    using namespace PatternMatch;
+    if (match(CI, m_Intrinsic<Intrinsic::assume>()))
+      // Assumes don't actually alias anything or throw
+      return true;
     
     // Handle simple cases by querying alias analysis.
     FunctionModRefBehavior Behavior = AA->getModRefBehavior(CI);