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| author | Sebastian Pop <sebpop@gmail.com> | 2007-08-03 01:44:44 +0000 |
|---|---|---|
| committer | Sebastian Pop <sebpop@gmail.com> | 2007-08-03 01:44:44 +0000 |
| commit | 398e62347d641822e598e8fc754c3f4ed3346757 (patch) | |
| tree | 693f5558c7bf741f37428ccf8515969acb2cc019 /config/tls.m4 | |
| parent | a8e15c0a35c5b9d448f75685b752130d2b08a16a (diff) | |
* Merge from mainline (125309:127169).
* tree-loop-distribution.c: Disabled.
git-svn-id: https://gcc.gnu.org/svn/gcc/branches/graphite@127175 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'config/tls.m4')
| -rw-r--r-- | config/tls.m4 | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/config/tls.m4 b/config/tls.m4 index c8f3ff0a3733..69cf6d4f9d2b 100644 --- a/config/tls.m4 +++ b/config/tls.m4 @@ -73,3 +73,16 @@ AC_DEFUN([GCC_CHECK_TLS], [ AC_DEFINE(HAVE_TLS, 1, [Define to 1 if the target supports thread-local storage.]) fi]) + +dnl Check whether the target assembler supports TLS. +AC_DEFUN([GCC_CHECK_CC_TLS], [ + GCC_ENABLE(tls, yes, [], [Use thread-local storage]) + AC_CACHE_CHECK([whether the target asssembler upports thread-local storage], + have_cc_tls, [ + AC_COMPILE_IFELSE([__thread int a; int b; int main() { return a = b; }], + [have_cc_tls=yes], [have_cc_tls=no])] + )]) + if test "$enable_tls $have_cc_tls" = "yes yes"; then + AC_DEFINE(HAVE_CC_TLS, 1, + [Define to 1 if the target assembler supports thread-local storage.]) + fi]) |