Add -funique-section-names and -fno-unique-section-names options.
For now -funique-section-names is the default, so no change in default behavior.
The total .o size in a build of llvm and clang goes from 241687775 to 230649031
bytes if -fno-unique-section-names is used.
llvm-svn: 230031
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index b5f2060..dd878d0 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -3316,6 +3316,10 @@
CmdArgs.push_back("-fdata-sections");
}
+ if (!Args.hasFlag(options::OPT_funique_section_names,
+ options::OPT_fno_unique_section_names, true))
+ CmdArgs.push_back("-fno-unique-section-names");
+
Args.AddAllArgs(CmdArgs, options::OPT_finstrument_functions);
if (Args.hasArg(options::OPT_fprofile_instr_generate) &&