diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/tm/memopt-4.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tm/memopt-4.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tm/memopt-4.c b/gcc-4.9/gcc/testsuite/gcc.dg/tm/memopt-4.c new file mode 100644 index 000000000..58f8fd042 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tm/memopt-4.c @@ -0,0 +1,24 @@ +/* { dg-do compile } */ +/* { dg-options "-fgnu-tm -O -fdump-tree-tmedge" } */ + +/* Test thread-local memory optimizations: save/restore pairs. */ + +struct large { int x[100]; }; +struct large bark(); +extern int test (void) __attribute__((transaction_safe)); + +int f() +{ + int i = readint(); + struct large lala = bark(); + __transaction_atomic { + lala.x[55] = 666; + if (test()) + __transaction_cancel; + } + return lala.x[i]; +} + +/* { dg-final { scan-tree-dump-times "tm_save.\[0-9_\]+ = lala.x\\\[55\\\]" 1 "tmedge" } } */ +/* { dg-final { scan-tree-dump-times "lala.x\\\[55\\\] = tm_save" 1 "tmedge" } } */ +/* { dg-final { cleanup-tree-dump "tmedge" } } */ |