[CC1Option] Add the option to enable the debug entry values
The option enables debug info about parameter's entry values.
The example of using the option:
clang -g -O2 -Xclang -femit-debug-entry-values test.c
In addition, when the option is set add the flag all_call_sites
in a subprogram in order to support GNU extension as well.
([3/13] Introduce the debug entry values.)
Co-authored-by: Ananth Sowda <asowda@cisco.com>
Co-authored-by: Nikola Prica <nikola.prica@rt-rk.com>
Co-authored-by: Ivan Baev <ibaev@cisco.com>
Differential Revision: https://reviews.llvm.org/D58033
llvm-svn: 364399
diff --git a/clang/lib/CodeGen/BackendUtil.cpp b/clang/lib/CodeGen/BackendUtil.cpp
index a7c778b..5fe4f14 100644
--- a/clang/lib/CodeGen/BackendUtil.cpp
+++ b/clang/lib/CodeGen/BackendUtil.cpp
@@ -471,6 +471,7 @@
Options.DebuggerTuning = CodeGenOpts.getDebuggerTuning();
Options.EmitStackSizeSection = CodeGenOpts.StackSizeSection;
Options.EmitAddrsig = CodeGenOpts.Addrsig;
+ Options.EnableDebugEntryValues = CodeGenOpts.EnableDebugEntryValues;
if (CodeGenOpts.getSplitDwarfMode() != CodeGenOptions::NoFission)
Options.MCOptions.SplitDwarfFile = CodeGenOpts.SplitDwarfFile;
diff --git a/clang/lib/CodeGen/CGDebugInfo.cpp b/clang/lib/CodeGen/CGDebugInfo.cpp
index dbe582c..fce0902 100644
--- a/clang/lib/CodeGen/CGDebugInfo.cpp
+++ b/clang/lib/CodeGen/CGDebugInfo.cpp
@@ -4659,7 +4659,10 @@
// were part of DWARF v4.
bool SupportsDWARFv4Ext =
CGM.getCodeGenOpts().DwarfVersion == 4 &&
- CGM.getCodeGenOpts().getDebuggerTuning() == llvm::DebuggerKind::LLDB;
+ (CGM.getCodeGenOpts().getDebuggerTuning() == llvm::DebuggerKind::LLDB ||
+ (CGM.getCodeGenOpts().EnableDebugEntryValues &&
+ CGM.getCodeGenOpts().getDebuggerTuning() == llvm::DebuggerKind::GDB));
+
if (!SupportsDWARFv4Ext && CGM.getCodeGenOpts().DwarfVersion < 5)
return llvm::DINode::FlagZero;