Add a new option for and disable column number information as there
are no known current users of column info. Robustify and fix up
a few tests in the process. Reduces the size of debug information
by a small amount.
Part of PR14106
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166236 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Driver/CC1Options.td b/include/clang/Driver/CC1Options.td
index d65bf20..32b7a5e 100644
--- a/include/clang/Driver/CC1Options.td
+++ b/include/clang/Driver/CC1Options.td
@@ -143,6 +143,8 @@
HelpText<"The compilation directory to embed in the debug info.">;
def dwarf_debug_flags : Separate<"-dwarf-debug-flags">,
HelpText<"The string to embed in the Dwarf debug flags record.">;
+def dwarf_column_info : Flag<"-dwarf-column-info">,
+ HelpText<"Turn on column location information.">;
def fforbid_guard_variables : Flag<"-fforbid-guard-variables">,
HelpText<"Emit an error if a C++ static local initializer would need a guard variable">;
def no_implicit_float : Flag<"-no-implicit-float">,
diff --git a/include/clang/Driver/Options.td b/include/clang/Driver/Options.td
index b1bb069..dc05e49 100644
--- a/include/clang/Driver/Options.td
+++ b/include/clang/Driver/Options.td
@@ -716,6 +716,7 @@
Group<g_flags_Group>;
def gstrict_dwarf : Flag<"-gstrict-dwarf">, Group<g_flags_Group>;
def gno_strict_dwarf : Flag<"-gno-strict-dwarf">, Group<g_flags_Group>;
+def gcolumn_info : Flag<"-gcolumn-info">, Group<g_flags_Group>;
def headerpad__max__install__names : Joined<"-headerpad_max_install_names">;
def help : Flag<"-help">, Flags<[CC1Option]>,
HelpText<"Display available options">;
diff --git a/include/clang/Frontend/CodeGenOptions.h b/include/clang/Frontend/CodeGenOptions.h
index 3b0d599..d428031 100644
--- a/include/clang/Frontend/CodeGenOptions.h
+++ b/include/clang/Frontend/CodeGenOptions.h
@@ -145,6 +145,9 @@
/// The kind of generated debug info.
DebugInfoKind DebugInfo;
+ /// Whether or not to use column information in debug info.
+ bool DebugColumnInfo;
+
/// The string to embed in the debug information for the compile unit, if
/// non-empty.
std::string DwarfDebugFlags;