From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Tue, 10 May 2011 19:51:53 +0000 (+0000)
Subject: The EH symbols are only needed in eh_frame, not debug_frame.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=12f197b3bc736f740373c084be41654b4d88c0a7;p=oota-llvm.git

The EH symbols are only needed in eh_frame, not debug_frame.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131146 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/MC/MCDwarf.cpp b/lib/MC/MCDwarf.cpp
index 38f2fc0770c..d0eaf2074c6 100644
--- a/lib/MC/MCDwarf.cpp
+++ b/lib/MC/MCDwarf.cpp
@@ -633,7 +633,7 @@ const MCSymbol &FrameEmitterImpl::EmitCIE(MCStreamer &streamer,
   const TargetAsmInfo &asmInfo = context.getTargetAsmInfo();
 
   MCSymbol *sectionStart;
-  if (asmInfo.isFunctionEHFrameSymbolPrivate())
+  if (asmInfo.isFunctionEHFrameSymbolPrivate() || !IsEH)
     sectionStart = context.CreateTempSymbol();
   else
     sectionStart = context.GetOrCreateSymbol(Twine("EH_frame") + Twine(CIENum));
@@ -739,7 +739,7 @@ MCSymbol *FrameEmitterImpl::EmitFDE(MCStreamer &streamer,
   MCSymbol *fdeEnd = context.CreateTempSymbol();
   const TargetAsmInfo &asmInfo = context.getTargetAsmInfo();
 
-  if (!asmInfo.isFunctionEHFrameSymbolPrivate()) {
+  if (!asmInfo.isFunctionEHFrameSymbolPrivate() && IsEH) {
     MCSymbol *EHSym = context.GetOrCreateSymbol(
       frame.Function->getName() + Twine(".eh"));
     streamer.EmitEHSymAttributes(frame.Function, EHSym);
diff --git a/test/DebugInfo/eh_symbol.ll b/test/DebugInfo/eh_symbol.ll
new file mode 100644
index 00000000000..a87afedae26
--- /dev/null
+++ b/test/DebugInfo/eh_symbol.ll
@@ -0,0 +1,18 @@
+; RUN: llc -mtriple=i386-apple-macosx -disable-cfi %s -o - | FileCheck %s
+
+; test that we don't produce foo.eh symbols is a debug_frame section.
+; CHECK-NOT: .globl	_f.eh
+
+define i32 @f() nounwind readnone optsize {
+entry:
+  ret i32 42
+}
+
+!llvm.dbg.sp = !{!0}
+
+!0 = metadata !{i32 589870, i32 0, metadata !1, metadata !"f", metadata !"f", metadata !"", metadata !1, i32 1, metadata !3, i1 false, i1 true, i32 0, i32 0, i32 0, i32 256, i1 true, i32 ()* @f, null, null} ; [ DW_TAG_subprogram ]
+!1 = metadata !{i32 589865, metadata !"/home/espindola/llvm/test.c", metadata !"/home/espindola/tmpfs/build", metadata !2} ; [ DW_TAG_file_type ]
+!2 = metadata !{i32 589841, i32 0, i32 12, metadata !"/home/espindola/llvm/test.c", metadata !"/home/espindola/tmpfs/build", metadata !"clang version 3.0 ()", i1 true, i1 true, metadata !"", i32 0} ; [ DW_TAG_compile_unit ]
+!3 = metadata !{i32 589845, metadata !1, metadata !"", metadata !1, i32 0, i64 0, i64 0, i32 0, i32 0, i32 0, metadata !4, i32 0, i32 0} ; [ DW_TAG_subroutine_type ]
+!4 = metadata !{metadata !5}
+!5 = metadata !{i32 589860, metadata !2, metadata !"int", null, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]