diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/isolate-1.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/isolate-1.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/isolate-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/isolate-1.c new file mode 100644 index 000000000..f1f3101d3 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/isolate-1.c @@ -0,0 +1,60 @@ + +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-isolate-paths" } */ + + +struct demangle_component +{ + + int type; + int zzz; + +}; + + +struct d_info +{ + struct demangle_component *comps; + int next_comp; + int num_comps; +}; + + +static struct demangle_component * +d_make_empty (struct d_info *di) +{ + struct demangle_component *p; + + if (di->next_comp >= di->num_comps) + return ((void *)0); + p = &di->comps[di->next_comp]; + return p; +} + + + +struct demangle_component * +d_type (struct d_info *di) +{ + struct demangle_component *ret; + ret = d_make_empty (di); + ret->type = 42; + ret->zzz = -1; + return ret; +} + +/* We're testing three aspects of isolation here. First that isolation + occurs, second that if we have two null dereferences in a block that + that we delete everything from the first dereferece to the end of the + block, regardless of which comes first in the immediate use iterator + and finally that we set the RHS of the store to zero. */ +/* { dg-final { scan-tree-dump-times "__builtin_trap" 1 "isolate-paths"} } */ +/* { dg-final { scan-tree-dump-times "->type = 42" 1 "isolate-paths"} } */ +/* { dg-final { scan-tree-dump-times "->type ={v} 0" 1 "isolate-paths"} } */ +/* { dg-final { scan-tree-dump-times "->zzz" 1 "isolate-paths"} } */ +/* { dg-final { cleanup-tree-dump "isolate-paths" } } */ + + + + + |