diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-25.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-25.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-25.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-25.c new file mode 100644 index 000000000..f7f99bf74 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-25.c @@ -0,0 +1,18 @@ +/* { dg-do compile } */ +/* { dg-options "-O -fno-tree-sra -fdump-tree-fre" } */ + +struct X { int i; int j; }; +void bar (struct X *); +int foo (struct X *p) +{ + struct X x; + p->i = 1; + x = *p; + x.j = 2; + return p->i - x.i; +} + +/* We should optimize this to return 0. */ + +/* { dg-final { scan-tree-dump "= 0;" "fre" } } */ +/* { dg-final { cleanup-tree-dump "fre" } } */ |