diff options
author | torvald <torvald@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-01-13 23:45:06 +0000 |
---|---|---|
committer | torvald <torvald@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-01-13 23:45:06 +0000 |
commit | 16cd83025fa0a794e4beec3647be492f08fe2d72 (patch) | |
tree | 8ed0df69ae3d1543fa4811e7cb7e72a8d99333b5 /libitm/testsuite | |
parent | ad76fe700e7812977c64513fd552a701571b3e3f (diff) | |
download | gcc-16cd83025fa0a794e4beec3647be492f08fe2d72.tar.gz |
libitm: Filter out undo writes that overlap with the libitm stack.
PR libitm/51855
* config/generic/tls.h (GTM::mask_stack_top): New.
(GTM::mask_stack_bottom): Declare.
* config/generic/tls.c (GTM::mask_stack_bottom): New.
* local.cc (gtm_undolog::rollback): Filter out any updates that
overlap the libitm stack. Add current transaction as parameter.
* libitm_i.h (GTM::gtm_undolog::rollback): Adapt.
* beginend.cc (GTM::gtm_thread::rollback): Adapt.
* testsuite/libitm.c/stackundo.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@183172 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libitm/testsuite')
-rw-r--r-- | libitm/testsuite/libitm.c/stackundo.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/libitm/testsuite/libitm.c/stackundo.c b/libitm/testsuite/libitm.c/stackundo.c new file mode 100644 index 00000000000..02759d77014 --- /dev/null +++ b/libitm/testsuite/libitm.c/stackundo.c @@ -0,0 +1,23 @@ +int __attribute__((noinline)) test2(int x[1000]) +{ + int i; + return x[12]; +} + +int __attribute__((noinline)) test1() +{ + int x[1000], i; + + for (i = 0; i < 1000; i++) + x[i] = i; + return test2(x); +} + +int main() +{ + __transaction_atomic { + if (test1() !=0) + __transaction_cancel; + } + return 0; +} |