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| author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
|---|---|---|
| committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
| commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
| tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.dg/tree-ssa/ldist-9.c | |
| download | cbb-gcc-4.6.4-15d2061ac0796199866debe9ac87130894b0cdd3.tar.bz2 cbb-gcc-4.6.4-15d2061ac0796199866debe9ac87130894b0cdd3.tar.xz | |
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Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/ldist-9.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/ldist-9.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ldist-9.c b/gcc/testsuite/gcc.dg/tree-ssa/ldist-9.c new file mode 100644 index 000000000..ee8d023de --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/ldist-9.c @@ -0,0 +1,26 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -ftree-loop-distribution -fdump-tree-ldist-all" } */ + +int loop1 (int k) +{ + unsigned int i; + int a[1000], b[1000]; + + for (i = 1; i < (1000-1); i ++) { + a[i] = a[i+1] + a[i-1]; /* S1 */ + b[i] = a[i-1] + k; /* S2 */ + } + /* + Dependences: + S1->S2 (flow, level 1) + S1->S1 (anti, level 1) + S1->S1 (flow, level 1) + + One partition, because of the cost of cache misses. + */ + + return a[1000-2] + b[1000-1]; +} + +/* { dg-final { scan-tree-dump-times "distributed: split to 2 loops" 0 "ldist" } } */ +/* { dg-final { cleanup-tree-dump "ldist" } } */ |