diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/loop-23.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/loop-23.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/loop-23.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/loop-23.c new file mode 100644 index 000000000..5bdc35fbd --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/loop-23.c @@ -0,0 +1,29 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -funroll-loops -fdump-tree-cunroll-details" } */ + +__attribute__ ((pure)) +int bla(int); + +int foo(void) +{ + int i; + int sum; + + /* This loop used to appear to be too large for unrolling. */ + for (i = 0; i < 4; i++) + { + sum += bla (i); + sum += bla (2*i); + sum += bla (3*i); + sum += bla (4*i); + sum += bla (5*i); + sum += bla (6*i); + sum += bla (7*i); + sum += bla (8*i); + } + return sum; +} + +/* { dg-final { scan-tree-dump-times "loop with 4 iterations completely unrolled" 1 "cunroll" } } */ + +/* { dg-final { cleanup-tree-dump "cunroll" } } */ |