[llvm] r239214 - Handle 16 bit PC relative relocations.

[Rafael Espindola]

Author: rafael
Date: Fri Jun  5 21:29:56 2015
New Revision: 239214

URL: http://llvm.org/viewvc/llvm-project?rev=239214&view=rev
Log:
Handle 16 bit PC relative relocations.

Fixes pr23771.

Modified:
    llvm/trunk/lib/Target/X86/MCTargetDesc/X86ELFObjectWriter.cpp
    llvm/trunk/test/MC/ELF/relocation.s

Modified: llvm/trunk/lib/Target/X86/MCTargetDesc/X86ELFObjectWriter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/MCTargetDesc/X86ELFObjectWriter.cpp?rev=239214&r1=239213&r2=239214&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/MCTargetDesc/X86ELFObjectWriter.cpp (original)
+++ llvm/trunk/lib/Target/X86/MCTargetDesc/X86ELFObjectWriter.cpp Fri Jun  5 21:29:56 2015
@@ -66,6 +66,7 @@ static X86_64RelType getType64(unsigned
   case X86::reloc_riprel_4byte:
   case X86::reloc_riprel_4byte_movq_load:
     return RT64_32;
+  case FK_PCRel_2:
   case FK_Data_2:
     return RT64_16;
   case FK_PCRel_1:

Modified: llvm/trunk/test/MC/ELF/relocation.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/ELF/relocation.s?rev=239214&r1=239213&r2=239214&view=diff
==============================================================================
--- llvm/trunk/test/MC/ELF/relocation.s (original)
+++ llvm/trunk/test/MC/ELF/relocation.s Fri Jun  5 21:29:56 2015
@@ -54,6 +54,10 @@ bar:
 
         .quad	pr23272_2 - pr23272
         .quad	pr23272_3 - pr23272
+
+        .code16
+        call pr23771
+
 // CHECK:        Section {
 // CHECK:          Name: .rela.text
 // CHECK:          Relocations [
@@ -90,5 +94,6 @@ bar:
 // CHECK-NEXT:       0xD4 R_X86_64_SIZE32 blah 0xFFFFFFFFFFFFFFE0
 // CHECK-NEXT:       0xD8 R_X86_64_GOTPCREL foo 0x0
 // CHECK-NEXT:       0xDC R_X86_64_PLT32 foo 0x0
+// CHECK-NEXT:       0xF1 R_X86_64_PC16 pr23771 0xFFFFFFFFFFFFFFFE
 // CHECK-NEXT:     ]
 // CHECK-NEXT:   }