[llvm] r375430 - SystemZISelLowering - supportedAddressingMode - silence static analyzer dyn_cast<> null dereference warning. NFCI.

[Simon Pilgrim via llvm-commits]

Author: rksimon
Date: Mon Oct 21 10:16:03 2019
New Revision: 375430

URL: http://llvm.org/viewvc/llvm-project?rev=375430&view=rev
Log:
SystemZISelLowering - supportedAddressingMode - silence static analyzer dyn_cast<> null dereference warning. NFCI.

The static analyzer is warning about a potential null dereference, but we should be able to use cast<> directly and if not assert will fire for us.

Modified:
    llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp

Modified: llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp?rev=375430&r1=375429&r2=375430&view=diff
==============================================================================
--- llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp Mon Oct 21 10:16:03 2019
@@ -847,7 +847,7 @@ supportedAddressingMode(Instruction *I,
   }
 
   if (isa<LoadInst>(I) && I->hasOneUse()) {
-    auto *SingleUser = dyn_cast<Instruction>(*I->user_begin());
+    auto *SingleUser = cast<Instruction>(*I->user_begin());
     if (SingleUser->getParent() == I->getParent()) {
       if (isa<ICmpInst>(SingleUser)) {
         if (auto *C = dyn_cast<ConstantInt>(SingleUser->getOperand(1)))