diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/ldist-5.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/ldist-5.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ldist-5.c b/gcc/testsuite/gcc.dg/tree-ssa/ldist-5.c new file mode 100644 index 000000000..9a03dc171 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/ldist-5.c @@ -0,0 +1,33 @@ +/* { dg-do compile { target int32plus } } */ +/* { dg-options "-O2 -ftree-loop-distribution -fdump-tree-ldist-all" } */ + +int loop1 (int k) +{ + unsigned int i; + unsigned int j; + int a[100][100], b[100][100], c[100][100], d[100][100]; + + a[0][0] = k; + for (i = 1; i < 100; i ++) + for (j = 1; j < (100-1); j++) + { + a[i][j] = k * i; /* S1 */ + b[i][j] = a[i][j-1] + k; /* S2 */ + c[i][j] = b[i][j] + a[i][j+1]; /* S3 */ + d[i][j] = c[i][j] + k + i; /* S4 */ + } + /* Dependences: + S1->S2 (flow, level 2) + S1->S3 (anti, level 2) + S2->S3 (flow, level 0) + S3->S4 (flow, level 0) + */ + + return a[100-1][100-1] + b[100-1][100-1] + c[100-1][100-1] + d[100-1][100-1]; +} + +/* FIXME: This is XFAILed because of a data dependence analysis + problem: the dependence test fails with a "don't know" relation. */ + +/* { dg-final { scan-tree-dump-times "distributed: split to 2 loops" 1 "ldist" { xfail *-*-* } } } */ +/* { dg-final { cleanup-tree-dump "ldist" } } */ |