Keep track of inlined functions and their locations. This information is collected when nested llvm.dbg.func.start intrinsics are seen. (Right now, inliner removes nested llvm.dbg.func.start intrinisics during inlining.)

Create debug_inlined dwarf section using these information. This info is used by gdb, at least on Darwin, to enable better experience debugging inlined functions. See DwarfWriter.cpp for more information on structure of debug_inlined section.

llvm-svn: 68847

2 files changed, 2 insertions, 0 deletions

diff --git a/llvm/lib/Target/TargetAsmInfo.cpp b/llvm/lib/Target/TargetAsmInfo.cpp
index 4d9ec334acd..55833dee3b0 100644
--- a/llvm/lib/Target/TargetAsmInfo.cpp
+++ b/llvm/lib/Target/TargetAsmInfo.cpp
@@ -112,6 +112,7 @@ void TargetAsmInfo::fillDefaultValues() {
   DwarfFrameSection = ".debug_frame";
   DwarfPubNamesSection = ".debug_pubnames";
   DwarfPubTypesSection = ".debug_pubtypes";
+  DwarfDebugInlineSection = ".debug_inlined";
   DwarfStrSection = ".debug_str";
   DwarfLocSection = ".debug_loc";
   DwarfARangesSection = ".debug_aranges";
diff --git a/llvm/lib/Target/X86/X86TargetAsmInfo.cpp b/llvm/lib/Target/X86/X86TargetAsmInfo.cpp
index f1d97a38932..666756b4328 100644
--- a/llvm/lib/Target/X86/X86TargetAsmInfo.cpp
+++ b/llvm/lib/Target/X86/X86TargetAsmInfo.cpp
@@ -112,6 +112,7 @@ X86DarwinTargetAsmInfo::X86DarwinTargetAsmInfo(const X86TargetMachine &TM):
   DwarfFrameSection = ".section __DWARF,__debug_frame,regular,debug";
   DwarfPubNamesSection = ".section __DWARF,__debug_pubnames,regular,debug";
   DwarfPubTypesSection = ".section __DWARF,__debug_pubtypes,regular,debug";
+  DwarfDebugInlineSection = ".section __DWARF,__debug_inlined,regular,debug";
   DwarfStrSection = ".section __DWARF,__debug_str,regular,debug";
   DwarfLocSection = ".section __DWARF,__debug_loc,regular,debug";
   DwarfARangesSection = ".section __DWARF,__debug_aranges,regular,debug";