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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/loop-17.c | |
| download | cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.bz2 cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.xz | |
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Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/loop-17.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/loop-17.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/loop-17.c b/gcc/testsuite/gcc.dg/tree-ssa/loop-17.c new file mode 100644 index 000000000..d2903cef2 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/loop-17.c @@ -0,0 +1,19 @@ +/* { dg-do compile } */ +/* { dg-options "-O -fdump-tree-sccp-details" } */ + +/* To determine the number of iterations in this loop we need to fold + p_4 + 4B > p_4 + 8B to false. This transformation has caused + troubles in the past due to overflow issues. */ + +int foo (int *p) +{ + int i = 0, *x; + + for (x = p; x < p + 2; x++) + i++; + + return i; +} + +/* { dg-final { scan-tree-dump "set_nb_iterations_in_loop = 1" "sccp" } } */ +/* { dg-final { cleanup-tree-dump "sccp" } } */ |