diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-7.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-7.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-7.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-7.c new file mode 100644 index 00000000000..77e4a6246f3 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-7.c @@ -0,0 +1,23 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-dse1" } */ + +int glob1, glob2; + +int foo1 (void) +{ + glob1 = 0; + glob2 = 1; + glob1 = 2; + glob2 = 3; + return glob1 + glob2; +} + + + +/* There should only be one assignment to glob1 and glob2, the final + return statement should just return a constant. */ +/* { dg-final { scan-tree-dump-times "glob1 = " 1 "dse1"} } */ +/* { dg-final { scan-tree-dump-times "glob2 = " 1 "dse1"} } */ +/* { dg-final { scan-tree-dump-times "return 5" 1 "dse1"} } */ + +/* { dg-final { cleanup-tree-dump "dse1" } } */ |