diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/reassoc-9.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/reassoc-9.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/reassoc-9.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/reassoc-9.c new file mode 100644 index 000000000..d09303ccf --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/reassoc-9.c @@ -0,0 +1,18 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-reassoc1" } */ + +int main(int a, int b, int c, int d, int e, int f, int g, int h) +{ + /* Should be transformed into e = 20 */ + int i = (a + 9) + (c + 8); + int j = (-c + 1) + (-a + 2); + + e = i + j; + return e; +} + +/* We can always re-associate to a final constant but the current + implementation does not allow easy roll-back without IL changes. */ + +/* { dg-final { scan-tree-dump-times "= 20" 1 "reassoc1" { xfail *-*-* } } } */ +/* { dg-final { cleanup-tree-dump "reassoc1" } } */ |