Hi, This patch is to XFAIL scev-3.c and scev-5.c.
The bug is going to be fixed after Richard Guenther fix a serials of problems related to POINTER_PLUS_EXPR and sizetype precision. Thanks, -Jiangning ChangeLog for testsuite: 2012-03-21 Jiangning Liu <jiangning....@arm.com> PR tree-optimization/52563 * gcc.dg/tree-ssa/scev-3.c: XFAIL on lp64. * gcc.dg/tree-ssa/scev-4.c: XFAIL on lp64. * gcc.dg/tree-ssa/scev-5.c: New. Thanks, -Jiangning diff --git a/gcc/testsuite/gcc.dg/tree-ssa/scev-3.c b/gcc/testsuite/gcc.dg/tree-ssa/scev-3.c index 28d5c93..ed63a18 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/scev-3.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/scev-3.c @@ -14,5 +14,5 @@ f(int k) } } -/* { dg-final { scan-tree-dump-times "&a" 1 "optimized" } } */ +/* { dg-final { scan-tree-dump-times "&a" 1 "optimized" { xfail lp64 } +} } */ /* { dg-final { cleanup-tree-dump "optimized" } } */ diff --git a/gcc/testsuite/gcc.dg/tree-ssa/scev-4.c b/gcc/testsuite/gcc.dg/tree-ssa/scev-4.c index 6c1e530..a538c32 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/scev-4.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/scev-4.c @@ -19,5 +19,5 @@ f(int k) } } -/* { dg-final { scan-tree-dump-times "&a" 1 "optimized" } } */ +/* { dg-final { scan-tree-dump-times "&a" 1 "optimized" { xfail lp64 } +} } */ /* { dg-final { cleanup-tree-dump "optimized" } } */ diff --git a/gcc/testsuite/gcc.dg/tree-ssa/scev-5.c b/gcc/testsuite/gcc.dg/tree-ssa/scev-5.c new file mode 100644 index 0000000..b9de36a --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/scev-5.c @@ -0,0 +1,18 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-optimized" } */ + +int *a_p; +int a[1000]; + +f(int k) +{ + long long i; + + for (i=k; i<1000; i+=k) { + a_p = &a[i]; + *a_p = 100; + } +} + +/* { dg-final { scan-tree-dump-times "&a" 1 "optimized" } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */