diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/ivopt_mult_3.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/ivopt_mult_3.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ivopt_mult_3.c b/gcc/testsuite/gcc.dg/tree-ssa/ivopt_mult_3.c new file mode 100644 index 000000000..dc78a43f7 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/ivopt_mult_3.c @@ -0,0 +1,22 @@ +/* { dg-do compile { target {{ i?86-*-* x86_64-*-* } && lp64 } } } */ +/* { dg-options "-O2 -m64 -fdump-tree-ivopts-details" } */ + +/* iv p2 can be eliminated. */ +long foo(long* p, long* p2, int N1, int N2) +{ + unsigned long i = 0; + long* p_limit2 = p2 + N2; + long s = 0; + while (i < N1) + { + p2++; + i++; + if (p2 > p_limit2) + break; + s += p[i]; + } + return s; +} + +/* { dg-final { scan-tree-dump-times "Replacing" 1 "ivopts"} } */ +/* { dg-final { cleanup-tree-dump "ivopts" } } */ |