From ef4a661725716c60b49c40eed5225cac52f877e9 Mon Sep 17 00:00:00 2001
From: Bill Wendling <isanbard@gmail.com>
Date: Tue, 11 Sep 2007 17:20:55 +0000
Subject: [PATCH] Add a bool to indicate if we should set the "indirect
 encoding" bit in the Dwarf information for EH.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41852 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/Target/TargetAsmInfo.h | 5 +++++
 lib/CodeGen/DwarfWriter.cpp         | 7 ++++++-
 lib/Target/TargetAsmInfo.cpp        | 1 +
 lib/Target/X86/X86TargetAsmInfo.cpp | 1 +
 4 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/include/llvm/Target/TargetAsmInfo.h b/include/llvm/Target/TargetAsmInfo.h
index 97eaa3598cb..3326088a965 100644
--- a/include/llvm/Target/TargetAsmInfo.h
+++ b/include/llvm/Target/TargetAsmInfo.h
@@ -116,6 +116,11 @@ namespace llvm {
     const char *PersonalityPrefix;        // Defaults to ""
     const char *PersonalitySuffix;        // Defaults to ""
 
+    /// NeedsIndirectEncoding - If set, we need to set the indirect encoding bit
+    /// for EH in Dwarf.
+    /// 
+    bool NeedsIndirectEncoding;           // Defaults to false
+
     /// InlineAsmStart/End - If these are nonempty, they contain a directive to
     /// emit before and after an inline assembly statement.
     const char *InlineAsmStart;           // Defaults to "#APP\n"
diff --git a/lib/CodeGen/DwarfWriter.cpp b/lib/CodeGen/DwarfWriter.cpp
index 2b4b4ce135f..cf6a922d23c 100644
--- a/lib/CodeGen/DwarfWriter.cpp
+++ b/lib/CodeGen/DwarfWriter.cpp
@@ -2789,7 +2789,12 @@ private:
     if (Personality) {
       Asm->EmitULEB128Bytes(7);
       Asm->EOL("Augmentation Size");
-      Asm->EmitInt8(DW_EH_PE_pcrel | DW_EH_PE_sdata4 | DW_EH_PE_indirect);
+
+      if (TAI->getNeedsIndirectEncoding())
+        Asm->EmitInt8(DW_EH_PE_pcrel | DW_EH_PE_sdata4 | DW_EH_PE_indirect);
+      else
+        Asm->EmitInt8(DW_EH_PE_pcrel | DW_EH_PE_sdata4);
+
       Asm->EOL("Personality (pcrel sdata4 indirect)");
       
       PrintRelDirective();
diff --git a/lib/Target/TargetAsmInfo.cpp b/lib/Target/TargetAsmInfo.cpp
index 09a8d5ab8e7..1a3daf0eaa9 100644
--- a/lib/Target/TargetAsmInfo.cpp
+++ b/lib/Target/TargetAsmInfo.cpp
@@ -40,6 +40,7 @@ TargetAsmInfo::TargetAsmInfo() :
   FunctionAddrSuffix(""),
   PersonalityPrefix(""),
   PersonalitySuffix(""),
+  NeedsIndirectEncoding(false),
   InlineAsmStart("#APP"),
   InlineAsmEnd("#NO_APP"),
   AssemblerDialect(0),
diff --git a/lib/Target/X86/X86TargetAsmInfo.cpp b/lib/Target/X86/X86TargetAsmInfo.cpp
index 414782ee4db..05cf2bfdaba 100644
--- a/lib/Target/X86/X86TargetAsmInfo.cpp
+++ b/lib/Target/X86/X86TargetAsmInfo.cpp
@@ -70,6 +70,7 @@ X86TargetAsmInfo::X86TargetAsmInfo(const X86TargetMachine &TM) {
     }
     PersonalityPrefix = "L";
     PersonalitySuffix = "$non_lazy_ptr";
+    NeedsIndirectEncoding = true;
     InlineAsmStart = "# InlineAsm Start";
     InlineAsmEnd = "# InlineAsm End";
     SetDirective = "\t.set";
-- 
2.34.1