commit 70d3c92820f590b10553da9c96eda24e4325ba34
author Daniel Dunbar <daniel@zuster.org> Wed Apr 15 02:37:43 2009 +0000
committer Daniel Dunbar <daniel@zuster.org> Wed Apr 15 02:37:43 2009 +0000
tree 634650db518f65e9bf546e9eb23f430ab8de8503
parent db600c330a37b1c3ab4533310729910ee188f900

Driver: For clang, accept -fsigned-bitfields and reject
-funsigned-bitfields for now (clang defaults to -fsigned-bitfields).
 - <rdar://problem/6790309> ER: Support
   -fsigned-bitfields/-funsigned-bitfields


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69131 91177308-0d34-0410-b5e6-96231b3b80d8

include/clang/Driver/Options.def

diff --git a/include/clang/Driver/Options.def b/include/clang/Driver/Options.def
index a9074e8..1083794 100644
--- a/include/clang/Driver/Options.def
+++ b/include/clang/Driver/Options.def
@@ -498,6 +498,7 @@
 OPTION("-fprofile-arcs", fprofile_arcs, Flag, f_Group, INVALID, "", 0, 0, 0)
 OPTION("-fprofile-generate", fprofile_generate, Flag, f_Group, INVALID, "", 0, 0, 0)
 OPTION("-framework", framework, Separate, INVALID, INVALID, "l", 0, 0, 0)
+OPTION("-fsigned-bitfields", fsigned_bitfields, Flag, f_Group, INVALID, "", 0, 0, 0)
 OPTION("-fstack-protector", fstack_protector, Flag, clang_ignored_f_Group, INVALID, "", 0, 0, 0)
 OPTION("-fstrict-aliasing", fstrict_aliasing, Flag, clang_ignored_f_Group, INVALID, "", 0, 0, 0)
 OPTION("-fsyntax-only", fsyntax_only, Flag, INVALID, INVALID, "d", 0, 0, 0)
@@ -506,6 +507,7 @@
 OPTION("-ftime-report", ftime_report, Flag, f_Group, INVALID, "", 0, 0, 0)
 OPTION("-ftraditional", ftraditional, Flag, f_Group, INVALID, "", 0, 0, 0)
 OPTION("-ftrapv", ftrapv, Flag, f_Group, INVALID, "", 0, 0, 0)
+OPTION("-funsigned-bitfields", funsigned_bitfields, Flag, f_Group, INVALID, "", 0, 0, 0)
 OPTION("-funwind-tables", funwind_tables, Flag, f_Group, INVALID, "", 0, 0, 0)
 OPTION("-fverbose-asm", fverbose_asm, Flag, f_Group, INVALID, "", 0, 0, 0)
 OPTION("-fvisibility=", fvisibility_EQ, Joined, f_Group, INVALID, "", 0, 0, 0)

lib/Driver/Tools.cpp

diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 7c73780..c266cc2 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -473,6 +473,13 @@
   if (!Args.hasFlag(options::OPT_fcommon, options::OPT_fno_common))
     CmdArgs.push_back("-fno-common");
 
+  // -fsigned-bitfields is default, and clang doesn't yet support
+  // --funsigned-bitfields.
+  if (!Args.hasFlag(options::OPT_fsigned_bitfields, 
+                    options::OPT_funsigned_bitfields))
+    D.Diag(clang::diag::warn_drv_clang_unsupported)
+      << Args.getLastArg(options::OPT_funsigned_bitfields)->getAsString(Args);
+
   Args.AddLastArg(CmdArgs, options::OPT_dM);
   Args.AddLastArg(CmdArgs, options::OPT_dD);