[llvm] r238483 - Revert r238427 - [mips] Make TTypeEncoding indirect to allow .eh_frame to be read-only.

[Daniel Sanders]

Author: dsanders
Date: Thu May 28 15:30:32 2015
New Revision: 238483

URL: http://llvm.org/viewvc/llvm-project?rev=238483&view=rev
Log:
Revert r238427 - [mips] Make TTypeEncoding indirect to allow .eh_frame to be read-only.

It caused a smaller number of failures than the previous attempt at committing but still caused a couple on the llvm-linux-mips builder. Reverting while I investigate the remainder.


Modified:
    llvm/trunk/lib/MC/MCObjectFileInfo.cpp
    llvm/trunk/test/CodeGen/Mips/ehframe-indirect.ll

Modified: llvm/trunk/lib/MC/MCObjectFileInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCObjectFileInfo.cpp?rev=238483&r1=238482&r2=238483&view=diff
==============================================================================
--- llvm/trunk/lib/MC/MCObjectFileInfo.cpp (original)
+++ llvm/trunk/lib/MC/MCObjectFileInfo.cpp Thu May 28 15:30:32 2015
@@ -324,17 +324,10 @@ void MCObjectFileInfo::InitELFMCObjectFi
   case Triple::mipsel:
   case Triple::mips64:
   case Triple::mips64el:
-    // MIPS uses indirect pointer to refer personality functions and types, so
-    // that the eh_frame section can be read-only. DW.ref.personality will be
-    // generated for relocation.
+    // 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.
     PersonalityEncoding = dwarf::DW_EH_PE_indirect;
-    // FIXME: The N64 ABI probably ought to use DW_EH_PE_sdata8 but we can't
-    //        identify N64 from just a triple and this isn't supported by the
-    //        assemblers.
-    TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
-                    dwarf::DW_EH_PE_sdata4;
-    // We don't support PC-relative LSDA references in GAS so we use the default
-    // DW_EH_PE_absptr for those.
     break;
   case Triple::ppc64:
   case Triple::ppc64le:

Modified: llvm/trunk/test/CodeGen/Mips/ehframe-indirect.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/Mips/ehframe-indirect.ll?rev=238483&r1=238482&r2=238483&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/Mips/ehframe-indirect.ll (original)
+++ llvm/trunk/test/CodeGen/Mips/ehframe-indirect.ll Thu May 28 15:30:32 2015
@@ -1,11 +1,9 @@
-; RUN: llc -mtriple=mipsel-linux-gnu < %s -asm-verbose | FileCheck -check-prefix=ALL -check-prefix=O32 %s
-; RUN: llc -mtriple=mipsel-linux-android < %s -asm-verbose | FileCheck -check-prefix=ALL -check-prefix=O32 %s
-; RUN: llc -mtriple=mips64el-linux-gnu -target-abi=n32 < %s -asm-verbose | FileCheck -check-prefix=ALL -check-prefix=N32 %s
-; RUN: llc -mtriple=mips64el-linux-android -target-abi=n32 < %s -asm-verbose | FileCheck -check-prefix=ALL -check-prefix=N32 %s
-; RUN: llc -mtriple=mips64el-linux-gnu < %s -asm-verbose | FileCheck -check-prefix=ALL -check-prefix=N64 %s
-; RUN: llc -mtriple=mips64el-linux-android < %s -asm-verbose | FileCheck -check-prefix=ALL -check-prefix=N64 %s
-
- at _ZTISt9exception = external constant i8*
+; RUN: llc -mtriple=mipsel-linux-gnu < %s | FileCheck -check-prefix=ALL -check-prefix=O32 %s
+; RUN: llc -mtriple=mipsel-linux-android < %s | FileCheck -check-prefix=ALL -check-prefix=O32 %s
+; RUN: llc -mtriple=mips64el-linux-gnu -target-abi=n32 < %s | FileCheck -check-prefix=ALL -check-prefix=N32 %s
+; RUN: llc -mtriple=mips64el-linux-android -target-abi=n32 < %s | FileCheck -check-prefix=ALL -check-prefix=N32 %s
+; RUN: llc -mtriple=mips64el-linux-gnu < %s | FileCheck -check-prefix=ALL -check-prefix=N64 %s
+; RUN: llc -mtriple=mips64el-linux-android < %s | FileCheck -check-prefix=ALL -check-prefix=N64 %s
 
 define i32 @main() {
 ; ALL: .cfi_startproc
@@ -18,9 +16,7 @@ entry:
 
 lpad:
   %0 = landingpad { i8*, i32 } personality i8*
-    bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
-    catch i8* null
-    catch i8* bitcast (i8** @_ZTISt9exception to i8*)
+    bitcast (i32 (...)* @__gxx_personality_v0 to i8*) catch i8* null
   ret i32 0
 
 cont:
@@ -32,14 +28,6 @@ declare i32 @__gxx_personality_v0(...)
 
 declare void @foo()
 
-; ALL: GCC_except_table{{[0-9]+}}:
-; ALL: .byte 155 # @TType Encoding = indirect pcrel sdata4
-; ALL: $[[PC_LABEL:tmp[0-9]+]]:
-; ALL: .4byte	($_ZTISt9exception.DW.stub)-($[[PC_LABEL]])
-; ALL: $_ZTISt9exception.DW.stub:
-; O32: .4byte _ZTISt9exception
-; N32: .4byte _ZTISt9exception
-; N64: .8byte _ZTISt9exception
 ; ALL: .hidden DW.ref.__gxx_personality_v0
 ; ALL: .weak DW.ref.__gxx_personality_v0
 ; ALL: .section .data.DW.ref.__gxx_personality_v0,"aGw", at progbits,DW.ref.__gxx_personality_v0,comdat