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| author | ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-02-12 06:23:08 +0000 |
|---|---|---|
| committer | ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-02-12 06:23:08 +0000 |
| commit | 97a9e84db7393685db4d56f134fc73ee94c0995e (patch) | |
| tree | d088dbdf76ccf89230dc607d000488ace3bb43e9 /libgo/configure.ac | |
| parent | 9116c6038a9c15eae91de1dd8ddb75f22656cce5 (diff) | |
| download | gcc-97a9e84db7393685db4d56f134fc73ee94c0995e.tar.gz | |
PR go/52084
libgo: Provide more __sync functions if required.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@184138 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libgo/configure.ac')
| -rw-r--r-- | libgo/configure.ac | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/libgo/configure.ac b/libgo/configure.ac index 9c8478de74f..c3c1f5e9452 100644 --- a/libgo/configure.ac +++ b/libgo/configure.ac @@ -497,6 +497,20 @@ if test "$libgo_cv_func___sync_bool_compare_and_swap_4" = "yes"; then [Define to 1 if the compiler provides the __sync_bool_compare_and_swap function for uint32]) fi +AC_CACHE_CHECK([for __sync_bool_compare_and_swap_8], +[libgo_cv_func___sync_bool_compare_and_swap_8], +[AC_LINK_IFELSE([ +typedef unsigned int uint64 __attribute__ ((mode (DI))); +uint64 i; +int main() { return __sync_bool_compare_and_swap (&i, 0, 1); } +], +[libgo_cv_func___sync_bool_compare_and_swap_8=yes], +[libgo_cv_func___sync_bool_compare_and_swap_8=no])]) +if test "$libgo_cv_func___sync_bool_compare_and_swap_8" = "yes"; then + AC_DEFINE(HAVE_SYNC_BOOL_COMPARE_AND_SWAP_8, 1, + [Define to 1 if the compiler provides the __sync_bool_compare_and_swap function for uint64]) +fi + AC_CACHE_CHECK([for __sync_fetch_and_add_4], [libgo_cv_func___sync_fetch_and_add_4], [AC_LINK_IFELSE([ @@ -511,6 +525,20 @@ if test "$libgo_cv_func___sync_fetch_and_add_4" = "yes"; then [Define to 1 if the compiler provides the __sync_fetch_and_add function for uint32]) fi +AC_CACHE_CHECK([for __sync_add_and_fetch_8], +[libgo_cv_func___sync_add_and_fetch_8], +[AC_LINK_IFELSE([ +typedef unsigned int uint64 __attribute__ ((mode (DI))); +uint64 i; +int main() { return __sync_add_and_fetch (&i, 1); } +], +[libgo_cv_func___sync_add_and_fetch_8=yes], +[libgo_cv_func___sync_add_and_fetch_8=no])]) +if test "$libgo_cv_func___sync_add_and_fetch_8" = "yes"; then + AC_DEFINE(HAVE_SYNC_ADD_AND_FETCH_8, 1, + [Define to 1 if the compiler provides the __sync_add_and_fetch function for uint64]) +fi + dnl For x86 we want to use the -minline-all-stringops option to avoid dnl forcing a stack split when calling memcpy and friends. AC_CACHE_CHECK([whether compiler supports -minline-all-stringops], |