Turn anonymous type in anonymous union warning back on after cleaning up

issues.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177136 91177308-0d34-0410-b5e6-96231b3b80d8

Author: echristo

Makefile.config.in

@@ -375,8 +375,6 @@ COVERED_SWITCH_DEFAULT = @COVERED_SWITCH_DEFAULT@
 NO_UNINITIALIZED = @NO_UNINITIALIZED@
 # -Wno-maybe-uninitialized
 NO_MAYBE_UNINITIALIZED = @NO_MAYBE_UNINITIALIZED@
-# -Wno-nested-anon-types
-NO_NESTED_ANON_TYPES = @NO_NESTED_ANON_TYPES@
 
 # Was polly found in tools/polly?
 LLVM_HAS_POLLY = @LLVM_HAS_POLLY@

Makefile.rules

@@ -667,7 +667,7 @@ LD.Flags += $(EXTRA_LD_OPTIONS)
 endif
 
 ifndef NO_PEDANTIC
-CompileCommonOpts += -pedantic -Wno-long-long $(NO_NESTED_ANON_TYPES)
+CompileCommonOpts += -pedantic -Wno-long-long
 endif
 CompileCommonOpts += -Wall -W -Wno-unused-parameter -Wwrite-strings \
                      $(EXTRA_OPTIONS) $(COVERED_SWITCH_DEFAULT) \

autoconf/configure.ac

@@ -1270,7 +1270,6 @@ dnl Check optional compiler flags.
 AC_MSG_CHECKING([optional compiler flags])
 CXX_FLAG_CHECK(NO_VARIADIC_MACROS, [-Wno-variadic-macros])
 CXX_FLAG_CHECK(NO_MISSING_FIELD_INITIALIZERS, [-Wno-missing-field-initializers])
-CXX_FLAG_CHECK(NO_NESTED_ANON_TYPES, [-Wno-nested-anon-types])
 CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
 
 dnl GCC's potential uninitialized use analysis is weak and presents lots of
@@ -1288,7 +1287,7 @@ then
     CXX_FLAG_CHECK(NO_UNINITIALIZED, [-Wno-uninitialized])
   fi
 fi
-AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $NO_NESTED_ANON_TYPES $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED])
+AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED])
 
 AC_ARG_WITH([python],
             [AS_HELP_STRING([--with-python], [path to python])],

cmake/modules/HandleLLVMOptions.cmake

@@ -202,8 +202,6 @@ elseif( LLVM_COMPILER_IS_GCC_COMPATIBLE )
 
     if (LLVM_ENABLE_PEDANTIC)
       add_llvm_definitions( -pedantic -Wno-long-long )
-      check_cxx_compiler_flag("-Werror -Wnested-anon-types" CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG)
-      append_if(CMAKE_CXX_FLAGS "-Wno-nested-anon-types" CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG)
     endif (LLVM_ENABLE_PEDANTIC)
     check_cxx_compiler_flag("-Werror -Wcovered-switch-default" CXX_SUPPORTS_COVERED_SWITCH_DEFAULT_FLAG)
     append_if(CMAKE_CXX_FLAGS "-Wcovered-switch-default" CXX_SUPPORTS_COVERED_SWITCH_DEFAULT_FLAG)

configure

@@ -766,7 +766,6 @@ CONVENIENCE_LTDL_FALSE
 LIBADD_DL
 NO_VARIADIC_MACROS
 NO_MISSING_FIELD_INITIALIZERS
-NO_NESTED_ANON_TYPES
 COVERED_SWITCH_DEFAULT
 NO_MAYBE_UNINITIALIZED
 NO_UNINITIALIZED
@@ -10498,7 +10497,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 10501 "configure"
+#line 10500 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12265,8 +12264,6 @@ NO_VARIADIC_MACROS=`$CXX -Werror -Wvariadic-macros -fsyntax-only -xc /dev/null 2
 
 NO_MISSING_FIELD_INITIALIZERS=`$CXX -Werror -Wmissing-field-initializers -fsyntax-only -xc /dev/null 2>/dev/null && echo -Wno-missing-field-initializers`
 
-NO_NESTED_ANON_TYPES=`$CXX -Werror -Wnested-anon-types -fsyntax-only -xc /dev/null 2>/dev/null && echo -Wno-nested-anon-types`
-
 COVERED_SWITCH_DEFAULT=`$CXX -Werror -Wcovered-switch-default -fsyntax-only -xc /dev/null 2>/dev/null && echo -Wcovered-switch-default`
 
 
@@ -12282,8 +12279,8 @@ then
 
   fi
 fi
-{ echo "$as_me:$LINENO: result: $NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $NO_NESTED_ANON_TYPES $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED" >&5
-echo "${ECHO_T}$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $NO_NESTED_ANON_TYPES $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED" >&6; }
+{ echo "$as_me:$LINENO: result: $NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED" >&5
+echo "${ECHO_T}$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT $NO_UNINITIALIZED $NO_MAYBE_UNINITIALIZED" >&6; }
 
 
 # Check whether --with-python was given.
@@ -22585,7 +22582,6 @@ CONVENIENCE_LTDL_FALSE!$CONVENIENCE_LTDL_FALSE$ac_delim
 LIBADD_DL!$LIBADD_DL$ac_delim
 NO_VARIADIC_MACROS!$NO_VARIADIC_MACROS$ac_delim
 NO_MISSING_FIELD_INITIALIZERS!$NO_MISSING_FIELD_INITIALIZERS$ac_delim
-NO_NESTED_ANON_TYPES!$NO_NESTED_ANON_TYPES$ac_delim
 COVERED_SWITCH_DEFAULT!$COVERED_SWITCH_DEFAULT$ac_delim
 NO_MAYBE_UNINITIALIZED!$NO_MAYBE_UNINITIALIZED$ac_delim
 NO_UNINITIALIZED!$NO_UNINITIALIZED$ac_delim
@@ -22615,6 +22611,7 @@ BINDINGS_TO_BUILD!$BINDINGS_TO_BUILD$ac_delim
 ALL_BINDINGS!$ALL_BINDINGS$ac_delim
 OCAML_LIBDIR!$OCAML_LIBDIR$ac_delim
 ENABLE_VISIBILITY_INLINES_HIDDEN!$ENABLE_VISIBILITY_INLINES_HIDDEN$ac_delim
+RPATH!$RPATH$ac_delim
 _ACEOF
 
   if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -22656,14 +22653,13 @@ _ACEOF
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   cat >conf$$subs.sed <<_ACEOF
-RPATH!$RPATH$ac_delim
 RDYNAMIC!$RDYNAMIC$ac_delim
 program_prefix!$program_prefix$ac_delim
 LIBOBJS!$LIBOBJS$ac_delim
 LTLIBOBJS!$LTLIBOBJS$ac_delim
 _ACEOF
 
-  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 5; then
+  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 4; then
     break
   elif $ac_last_try; then
     { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5