diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/slsr-10.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/slsr-10.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/slsr-10.c b/gcc/testsuite/gcc.dg/tree-ssa/slsr-10.c new file mode 100644 index 0000000000..f131dae3b4 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/slsr-10.c @@ -0,0 +1,23 @@ +/* Verify straight-line strength reduction for simple integer addition + with stride reversed on 1st and 3rd instances. */ + +/* { dg-do compile } */ +/* { dg-options "-O3 -fdump-tree-optimized" } */ + +int +f (int s, int c) +{ + int a1, a2, a3, x1, x2, x3, x; + + a1 = 2 * s; + x1 = a1 + c; + a2 = 4 * s; + x2 = c + a2; + a3 = 6 * s; + x3 = a3 + c; + x = x1 + x2 + x3; + return x; +} + +/* { dg-final { scan-tree-dump-times " \\* " 1 "optimized" } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ |