Fix relocation selection for foo-. on mips.

This handles only the 32 bit case.

llvm-svn: 238751

llvm/lib/Target/Mips/MCTargetDesc/MipsELFObjectWriter.cpp

@@ -70,7 +70,7 @@ unsigned MipsELFObjectWriter::GetRelocType(const MCValue &Target,
   switch (Kind) {
   case Mips::fixup_Mips_32:
   case FK_Data_4:
-    return ELF::R_MIPS_32;
+    return IsPCRel ? ELF::R_MIPS_PC32 : ELF::R_MIPS_32;
   case Mips::fixup_Mips_64:
   case FK_Data_8:
     return ELF::R_MIPS_64;

llvm/test/MC/Mips/relocation.s

@@ -0,0 +1,10 @@
+// RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux < %s | llvm-readobj -r | FileCheck  %s
+
+// Test that we produce the correct relocation.
+// FIXME: move more relocation only tests here.
+
+        .long foo
+// CHECK: R_MIPS_32 foo
+
+        .long foo-.
+// CHECK: R_MIPS_PC32 foo