Teach Clang to recognize and ignore GCC's -fdiagnostics-show-location

flag. We should probably wire at least some variants of this up to our
actual diagnostics engine, but I'm leaving that for someone else. This
fixes the builds of packages which hard code something here, at least
including libstdc++ itself.

llvm-svn: 193318

diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
index 1ae659e..b88aeeb 100644 (file)
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -1432,6 +1432,10 @@ def fuse_ld_EQ : Joined<["-"], "fuse-ld=">, Group<clang_ignored_f_Group>;
 defm align_functions : BooleanFFlag<"align-functions">, Group<clang_ignored_f_Group>;
 def falign_functions_EQ : Joined<["-"], "falign-functions=">, Group<clang_ignored_f_Group>;
 
+// FIXME: This option should be supported and wired up to our diognostics, but
+// ignore it for now to avoid breaking builds that use it.
+def fdiagnostics_show_location_EQ : Joined<["-"], "fdiagnostics-show-location=">, Group<clang_ignored_f_Group>;
+
 defm eliminate_unused_debug_types : BooleanFFlag<"eliminate-unused-debug-types">, Group<clang_ignored_f_Group>;
 defm float_store : BooleanFFlag<"float-store">, Group<clang_ignored_f_Group>;
 defm function_attribute_list : BooleanFFlag<"function-attribute-list">, Group<clang_ignored_f_Group>;

diff --git a/clang/test/Driver/clang_f_opts.c b/clang/test/Driver/clang_f_opts.c
index bd3862b..e315245 100644 (file)
--- a/clang/test/Driver/clang_f_opts.c
+++ b/clang/test/Driver/clang_f_opts.c
@@ -105,6 +105,7 @@
 // RUN:     -falign-functions -falign-functions=2 -fno-align-functions        \
 // RUN:     -fasynchronous-unwind-tables -fno-asynchronous-unwind-tables      \
 // RUN:     -fbuiltin -fno-builtin                                            \
+// RUN:     -fdiagnostics-show-location=once                                  \
 // RUN:     -ffloat-store -fno-float-store                                    \
 // RUN:     -feliminate-unused-debug-types -fno-eliminate-unused-debug-types  \
 // RUN:     -fgcse -fno-gcse                                                  \