[mips64] Fix MIPS64 exception personality encoding

Remove dynamic relocations of __gxx_personality_v0 from the .eh_frame.
The MIPS64 follow-up of the MIPS32 fix (rL209907).

Patch by Vladimir Stefanovic.

Differential Revision: http://reviews.llvm.org/D6141


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221408 91177308-0d34-0410-b5e6-96231b3b80d8

Author: petar-jovanovic

lib/MC/MCObjectFileInfo.cpp

@@ -338,6 +338,8 @@ void MCObjectFileInfo::InitELFMCObjectFileInfo(Triple T) {
     break;
   case Triple::mips:
   case Triple::mipsel:
+  case Triple::mips64:
+  case Triple::mips64el:
     // MIPS uses indirect pointer to refer personality functions, so that the
     // eh_frame section can be read-only.  DW.ref.personality will be generated
     // for relocation.

test/CodeGen/Mips/ehframe-indirect.ll

@@ -1,5 +1,7 @@
-; RUN: llc -mtriple=mipsel-linux-gnu < %s | FileCheck %s
-; RUN: llc -mtriple=mipsel-linux-android < %s | FileCheck %s
+; RUN: llc -mtriple=mipsel-linux-gnu < %s | FileCheck  -check-prefix=CHECK32 %s
+; RUN: llc -mtriple=mipsel-linux-android < %s | FileCheck -check-prefix=CHECK32 %s
+; RUN: llc -mtriple=mips64el-linux-gnu < %s | FileCheck  -check-prefix=CHECK64 %s
+; RUN: llc -mtriple=mips64el-linux-android < %s | FileCheck -check-prefix=CHECK64 %s
 
 define i32 @main() {
 ; CHECK: .cfi_startproc
@@ -27,8 +29,11 @@ declare void @foo()
 ; CHECK: .hidden DW.ref.__gxx_personality_v0
 ; CHECK: .weak DW.ref.__gxx_personality_v0
 ; CHECK: .section .data.DW.ref.__gxx_personality_v0,"aGw",@progbits,DW.ref.__gxx_personality_v0,comdat
-; CHECK: .align 2
+; CHECK32: .align 2
+; CHECK64: .align 3
 ; CHECK: .type DW.ref.__gxx_personality_v0,@object
-; CHECK: .size DW.ref.__gxx_personality_v0, 4
+; CHECK32: .size DW.ref.__gxx_personality_v0, 4
+; CHECK64: .size DW.ref.__gxx_personality_v0, 8
 ; CHECK: DW.ref.__gxx_personality_v0:
-; CHECK: .4byte __gxx_personality_v0
+; CHECK32: .4byte __gxx_personality_v0
+; CHECK64: .8byte __gxx_personality_v0