diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/loadpre7.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/loadpre7.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/loadpre7.c b/gcc/testsuite/gcc.dg/tree-ssa/loadpre7.c new file mode 100644 index 000000000..6f68f3ae2 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/loadpre7.c @@ -0,0 +1,17 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-pre-stats" } */ +/* We can't eliminate the *p load here in any sane way, as eshup8 may + change it. */ +void +enormlz (x) + unsigned short x[]; +{ + register unsigned short *p; + p = &x[2]; + while ((*p & 0xff00) == 0) + { + eshup8 (x); + } +} +/* { dg-final { scan-tree-dump-not "Eliminated:" "pre"} } */ +/* { dg-final { cleanup-tree-dump "pre" } } */ |