Fix some uses of dyn_cast to be uses of cast.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40443 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 2c4234b..a25710b 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -4676,8 +4676,8 @@
   if (Loc.getOpcode() == ISD::FrameIndex) {
     if (BaseLoc.getOpcode() != ISD::FrameIndex)
       return false;
-    int FI  = dyn_cast<FrameIndexSDNode>(Loc)->getIndex();
-    int BFI = dyn_cast<FrameIndexSDNode>(BaseLoc)->getIndex();
+    int FI  = cast<FrameIndexSDNode>(Loc)->getIndex();
+    int BFI = cast<FrameIndexSDNode>(BaseLoc)->getIndex();
     int FS  = MFI->getObjectSize(FI);
     int BFS = MFI->getObjectSize(BFI);
     if (FS != BFS || FS != Size) return false;
@@ -4704,7 +4704,7 @@
     return (GV->getAlignment() >= 16 && (Offset % 16) == 0);
   else {
     assert(Base->getOpcode() == ISD::FrameIndex && "Unexpected base node!");
-    int BFI = dyn_cast<FrameIndexSDNode>(Base)->getIndex();
+    int BFI = cast<FrameIndexSDNode>(Base)->getIndex();
     if (BFI < 0)
       // Fixed objects do not specify alignment, however the offsets are known.
       return ((Subtarget->getStackAlignment() % 16) == 0 &&