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Enable -Wcovered-switch-default again, but add -Werror to the checks to make

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sure we don't use it with compilers that don't support it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151665 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2012-02-28 23:32:06 +00:00
parent 1485455be0
commit 9993a3aebb
11 changed files with 36 additions and 18 deletions
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2
Makefile.config.in
View File

@ -337,6 +337,8 @@ BINUTILS_INCDIR := @BINUTILS_INCDIR@
NO_MISSING_FIELD_INITIALIZERS = @NO_MISSING_FIELD_INITIALIZERS@
# -Wno-variadic-macros
NO_VARIADIC_MACROS = @NO_VARIADIC_MACROS@
# -Wcovered-switch-default
COVERED_SWITCH_DEFAULT = @COVERED_SWITCH_DEFAULT@
# Was polly found in tools/polly?
LLVM_HAS_POLLY = @LLVM_HAS_POLLY@

2
Makefile.rules
View File

@ -650,7 +650,7 @@ ifndef NO_PEDANTIC
CompileCommonOpts += -pedantic -Wno-long-long
endif
CompileCommonOpts += -Wall -W -Wno-unused-parameter -Wwrite-strings \
$(EXTRA_OPTIONS)
$(EXTRA_OPTIONS) $(COVERED_SWITCH_DEFAULT)
# Enable cast-qual for C++; the workaround is to use const_cast.
CXX.Flags += -Wcast-qual

3
autoconf/configure.ac
View File

@ -1115,7 +1115,8 @@ 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])
AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS])
CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT])
dnl===-----------------------------------------------------------------------===
dnl===

2
autoconf/m4/cxx_flag_check.m4
View File

@ -1,2 +1,2 @@
AC_DEFUN([CXX_FLAG_CHECK],
[AC_SUBST($1, `$CXX $2 -fsyntax-only -xc /dev/null 2>/dev/null && echo $2`)])
[AC_SUBST($1, `$CXX -Werror $2 -fsyntax-only -xc /dev/null 2>/dev/null && echo $2`)])

4
cmake/modules/HandleLLVMOptions.cmake
View File

@ -182,6 +182,10 @@ elseif( LLVM_COMPILER_IS_GCC_COMPATIBLE )
if (LLVM_ENABLE_PEDANTIC)
add_llvm_definitions( -pedantic -Wno-long-long )
endif (LLVM_ENABLE_PEDANTIC)
check_cxx_compiler_flag("-Werror -Wcovered-switch-default" SUPPORTS_COVERED_SWITCH_DEFAULT_FLAG)
if( SUPPORTS_COVERED_SWITCH_DEFAULT_FLAG )
add_llvm_definitions( -Wcovered-switch-default )
endif()
endif (LLVM_ENABLE_WARNINGS)
if (LLVM_ENABLE_WERROR)
add_llvm_definitions( -Werror )

16
configure vendored
View File

@ -765,6 +765,7 @@ CONVENIENCE_LTDL_FALSE
LIBADD_DL
NO_VARIADIC_MACROS
NO_MISSING_FIELD_INITIALIZERS
COVERED_SWITCH_DEFAULT
USE_UDIS86
USE_OPROFILE
HAVE_PTHREAD
@ -10463,7 +10464,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<EOF
#line 10466 "configure"
#line 10467 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@ -12218,12 +12219,14 @@ echo "${ECHO_T}ok" >&6; }
{ echo "$as_me:$LINENO: checking optional compiler flags" >&5
echo $ECHO_N "checking optional compiler flags... $ECHO_C" >&6; }
NO_VARIADIC_MACROS=`$CXX -Wno-variadic-macros -fsyntax-only -xc /dev/null 2>/dev/null && echo -Wno-variadic-macros`
NO_VARIADIC_MACROS=`$CXX -Werror -Wno-variadic-macros -fsyntax-only -xc /dev/null 2>/dev/null && echo -Wno-variadic-macros`
NO_MISSING_FIELD_INITIALIZERS=`$CXX -Wno-missing-field-initializers -fsyntax-only -xc /dev/null 2>/dev/null && echo -Wno-missing-field-initializers`
NO_MISSING_FIELD_INITIALIZERS=`$CXX -Werror -Wno-missing-field-initializers -fsyntax-only -xc /dev/null 2>/dev/null && echo -Wno-missing-field-initializers`
{ echo "$as_me:$LINENO: result: $NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS" >&5
echo "${ECHO_T}$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS" >&6; }
COVERED_SWITCH_DEFAULT=`$CXX -Werror -Wcovered-switch-default -fsyntax-only -xc /dev/null 2>/dev/null && echo -Wcovered-switch-default`
{ echo "$as_me:$LINENO: result: $NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT" >&5
echo "${ECHO_T}$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT" >&6; }
@ -21974,6 +21977,7 @@ CONVENIENCE_LTDL_FALSE!$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$ac_delim
COVERED_SWITCH_DEFAULT!$COVERED_SWITCH_DEFAULT$ac_delim
USE_UDIS86!$USE_UDIS86$ac_delim
USE_OPROFILE!$USE_OPROFILE$ac_delim
HAVE_PTHREAD!$HAVE_PTHREAD$ac_delim
@ -22001,7 +22005,7 @@ LIBOBJS!$LIBOBJS$ac_delim
LTLIBOBJS!$LTLIBOBJS$ac_delim
_ACEOF
if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 91; then
if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 92; then
break
elif $ac_last_try; then
{ { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5

2
projects/sample/Makefile.llvm.config.in
View File

@ -301,6 +301,8 @@ BINUTILS_INCDIR := @BINUTILS_INCDIR@
NO_MISSING_FIELD_INITIALIZERS = @NO_MISSING_FIELD_INITIALIZERS@
# -Wno-variadic-macros
NO_VARIADIC_MACROS = @NO_VARIADIC_MACROS@
# -Wcovered-switch-default
COVERED_SWITCH_DEFAULT = @COVERED_SWITCH_DEFAULT@
# Was polly found in tools/polly?
LLVM_HAS_POLLY = @LLVM_HAS_POLLY@

2
projects/sample/Makefile.llvm.rules
View File

@ -571,7 +571,7 @@ ifndef NO_PEDANTIC
CompileCommonOpts += -pedantic -Wno-long-long
endif
CompileCommonOpts += -Wall -W -Wno-unused-parameter -Wwrite-strings \
$(EXTRA_OPTIONS)
$(EXTRA_OPTIONS) $(COVERED_SWITCH_DEFAULT)
# Enable cast-qual for C++; the workaround is to use const_cast.
CXX.Flags += -Wcast-qual

3
projects/sample/autoconf/configure.ac
View File

@ -1019,7 +1019,8 @@ 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])
AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS])
CXX_FLAG_CHECK(COVERED_SWITCH_DEFAULT, [-Wcovered-switch-default])
AC_MSG_RESULT([$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT])
dnl===-----------------------------------------------------------------------===
dnl===

2
projects/sample/autoconf/m4/cxx_flag_check.m4
View File

@ -1,2 +1,2 @@
AC_DEFUN([CXX_FLAG_CHECK],
[AC_SUBST($1, `$CXX $2 -fsyntax-only -xc /dev/null 2>/dev/null && echo $2`)])
[AC_SUBST($1, `$CXX -Werror $2 -fsyntax-only -xc /dev/null 2>/dev/null && echo $2`)])

16
projects/sample/configure vendored
View File

@ -762,6 +762,7 @@ CONVENIENCE_LTDL_FALSE
LIBADD_DL
NO_VARIADIC_MACROS
NO_MISSING_FIELD_INITIALIZERS
COVERED_SWITCH_DEFAULT
USE_UDIS86
USE_OPROFILE
HAVE_PTHREAD
@ -10365,7 +10366,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<EOF
#line 10368 "configure"
#line 10369 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@ -12120,12 +12121,14 @@ echo "${ECHO_T}ok" >&6; }
{ echo "$as_me:$LINENO: checking optional compiler flags" >&5
echo $ECHO_N "checking optional compiler flags... $ECHO_C" >&6; }
NO_VARIADIC_MACROS=`$CXX -Wno-variadic-macros -fsyntax-only -xc /dev/null 2>/dev/null && echo -Wno-variadic-macros`
NO_VARIADIC_MACROS=`$CXX -Werror -Wno-variadic-macros -fsyntax-only -xc /dev/null 2>/dev/null && echo -Wno-variadic-macros`
NO_MISSING_FIELD_INITIALIZERS=`$CXX -Wno-missing-field-initializers -fsyntax-only -xc /dev/null 2>/dev/null && echo -Wno-missing-field-initializers`
NO_MISSING_FIELD_INITIALIZERS=`$CXX -Werror -Wno-missing-field-initializers -fsyntax-only -xc /dev/null 2>/dev/null && echo -Wno-missing-field-initializers`
{ echo "$as_me:$LINENO: result: $NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS" >&5
echo "${ECHO_T}$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS" >&6; }
COVERED_SWITCH_DEFAULT=`$CXX -Werror -Wcovered-switch-default -fsyntax-only -xc /dev/null 2>/dev/null && echo -Wcovered-switch-default`
{ echo "$as_me:$LINENO: result: $NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT" >&5
echo "${ECHO_T}$NO_VARIADIC_MACROS $NO_MISSING_FIELD_INITIALIZERS $COVERED_SWITCH_DEFAULT" >&6; }
@ -21816,6 +21819,7 @@ CONVENIENCE_LTDL_FALSE!$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$ac_delim
COVERED_SWITCH_DEFAULT!$COVERED_SWITCH_DEFAULT$ac_delim
USE_UDIS86!$USE_UDIS86$ac_delim
USE_OPROFILE!$USE_OPROFILE$ac_delim
HAVE_PTHREAD!$HAVE_PTHREAD$ac_delim
@ -21843,7 +21847,7 @@ LIBOBJS!$LIBOBJS$ac_delim
LTLIBOBJS!$LTLIBOBJS$ac_delim
_ACEOF
if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 90; then
if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 91; then
break
elif $ac_last_try; then
{ { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5