PC-relative pseudo instructions are lowered and printed directly. Any encounter
with one in the generic printing code is an error.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114242 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/AsmPrinter/ARMInstPrinter.cpp b/lib/Target/ARM/AsmPrinter/ARMInstPrinter.cpp
index c15d457..528abfe 100644
--- a/lib/Target/ARM/AsmPrinter/ARMInstPrinter.cpp
+++ b/lib/Target/ARM/AsmPrinter/ARMInstPrinter.cpp
@@ -387,7 +387,7 @@
   // All instructions using addrmodepc are pseudos and should have been
   // handled explicitly in printInstructionThroughMCStreamer(). If one got
   // here, it wasn't, so something's wrong.
-  assert(0 && "Unhandled addrmodepc operand!");
+  llvm_unreachable("Unhandled PC-relative pseudo-instruction!");
 }
 
 void ARMInstPrinter::printBitfieldInvMaskImmOperand(const MCInst *MI,
@@ -522,8 +522,7 @@
 
 void ARMInstPrinter::printPCLabel(const MCInst *MI, unsigned OpNum,
                                   raw_ostream &O) {
-  // FIXME: remove this.
-  abort();
+  llvm_unreachable("Unhandled PC-relative pseudo-instruction!");
 }
 
 void ARMInstPrinter::printThumbS4ImmOperand(const MCInst *MI, unsigned OpNum,