assert(0) -> LLVM_UNREACHABLE.
Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75379 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCJITInfo.cpp b/lib/Target/PowerPC/PPCJITInfo.cpp
index 25f3785..91deca1 100644
--- a/lib/Target/PowerPC/PPCJITInfo.cpp
+++ b/lib/Target/PowerPC/PPCJITInfo.cpp
@@ -383,7 +383,7 @@
     unsigned *RelocPos = (unsigned*)Function + MR->getMachineCodeOffset()/4;
     intptr_t ResultPtr = (intptr_t)MR->getResultPointer();
     switch ((PPC::RelocationType)MR->getRelocationType()) {
-    default: assert(0 && "Unknown relocation type!");
+    default: LLVM_UNREACHABLE("Unknown relocation type!");
     case PPC::reloc_pcrel_bx:
       // PC-relative relocation for b and bl instructions.
       ResultPtr = (ResultPtr-(intptr_t)RelocPos) >> 2;