Not every x86 relocation is relative.

Without this predicate we were not producing R_386_RELATIVE relocations.

llvm-svn: 264160
diff --git a/lld/ELF/Target.cpp b/lld/ELF/Target.cpp
index 65fb032..0cf8de9 100644
--- a/lld/ELF/Target.cpp
+++ b/lld/ELF/Target.cpp
@@ -85,6 +85,7 @@
   void writePltZero(uint8_t *Buf) const override;
   void writePlt(uint8_t *Buf, uint64_t GotEntryAddr, uint64_t PltEntryAddr,
                 int32_t Index, unsigned RelOff) const override;
+  bool isRelRelative(uint32_t Type) const override;
   bool needsCopyRelImpl(uint32_t Type) const override;
   bool needsDynRelative(uint32_t Type) const override;
   bool needsGot(uint32_t Type, SymbolBody &S) const override;
@@ -396,6 +397,17 @@
   PltZeroSize = 16;
 }
 
+bool X86TargetInfo::isRelRelative(uint32_t Type) const {
+  switch (Type) {
+  default:
+    return false;
+  case R_386_PC32:
+  case R_386_PLT32:
+  case R_386_TLS_LDO_32:
+    return true;
+  }
+}
+
 void X86TargetInfo::writeGotPltHeader(uint8_t *Buf) const {
   write32le(Buf, Out<ELF32LE>::Dynamic->getVA());
 }