1. Support ELF pcrel relocations for movw/movt:
  R_ARM_MOVT_PREL and R_ARM_MOVW_PREL_NC.
2. Fix minor bug in ARMAsmPrinter - treat bitfield flag as a bitfield, not an enum.
3. Add support for 3 new elf section types (no-ops)




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123294 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMAsmBackend.cpp b/lib/Target/ARM/ARMAsmBackend.cpp
index c72e790..0d5a9af 100644
--- a/lib/Target/ARM/ARMAsmBackend.cpp
+++ b/lib/Target/ARM/ARMAsmBackend.cpp
@@ -78,6 +78,8 @@
 { "fixup_arm_thumb_bcc",     1,             8,  MCFixupKindInfo::FKF_IsPCRel },
 { "fixup_arm_movt_hi16",     0,            16,  0 },
 { "fixup_arm_movw_lo16",     0,            16,  0 },
+{ "fixup_arm_movt_hi16_pcrel", 0,          16,  MCFixupKindInfo::FKF_IsPCRel },
+{ "fixup_arm_movw_lo16_pcrel", 0,          16,  MCFixupKindInfo::FKF_IsPCRel },
     };
 
     if (Kind < FirstTargetFixupKind)
@@ -156,7 +158,9 @@
   case FK_Data_4:
     return Value;
   case ARM::fixup_arm_movt_hi16:
-  case ARM::fixup_arm_movw_lo16: {
+  case ARM::fixup_arm_movw_lo16:
+  case ARM::fixup_arm_movt_hi16_pcrel:
+  case ARM::fixup_arm_movw_lo16_pcrel: {
     unsigned Hi4 = (Value & 0xF000) >> 12;
     unsigned Lo12 = Value & 0x0FFF;
     // inst{19-16} = Hi4;