SystemZISelLowering - supportedAddressingMode - silence static analyzer dyn_cast...

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375430 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/SystemZ/SystemZISelLowering.cpp b/lib/Target/SystemZ/SystemZISelLowering.cpp
index d69f578735ac0caf6f7fe7cb243eacef5b2ed737..e0ca9da93561c60465865c7f0ed435a9e7fc4761 100644 (file)
--- a/lib/Target/SystemZ/SystemZISelLowering.cpp
+++ b/lib/Target/SystemZ/SystemZISelLowering.cpp
@@ -847,7 +847,7 @@ supportedAddressingMode(Instruction *I, bool HasVector) {
   }
 
   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)))