[LLVM-C] Expand LLVMRelocMode

Summary: Add read[only|write] PIC relocation models to the C API and teach the TargetMachine API about it.

Reviewers: whitequark, deadalnix

Reviewed By: whitequark

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D56187

llvm-svn: 350279
diff --git a/llvm/lib/Target/TargetMachineC.cpp b/llvm/lib/Target/TargetMachineC.cpp
index 37d398d..bae45ae 100644
--- a/llvm/lib/Target/TargetMachineC.cpp
+++ b/llvm/lib/Target/TargetMachineC.cpp
@@ -115,6 +115,15 @@
     case LLVMRelocDynamicNoPic:
       RM = Reloc::DynamicNoPIC;
       break;
+    case LLVMRelocROPI:
+      RM = Reloc::ROPI;
+      break;
+    case LLVMRelocRWPI:
+      RM = Reloc::RWPI;
+      break;
+    case LLVMRelocROPI_RWPI:
+      RM = Reloc::ROPI_RWPI;
+      break;
     default:
       break;
   }