diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2018-12-05 00:27:39 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2018-12-05 00:27:39 +0100 |
| commit | 6c620b0744af235ceb1c07c214772895e0f73c15 (patch) | |
| tree | 7ad6d45f726282f10ab2a0ad1a99484ae017624b | |
| parent | 31475afacaffc82f0317c928d4138f09ebcf3178 (diff) | |
| download | gcc-6c620b0744af235ceb1c07c214772895e0f73c15.zip gcc-6c620b0744af235ceb1c07c214772895e0f73c15.tar.gz gcc-6c620b0744af235ceb1c07c214772895e0f73c15.tar.bz2 | |
re PR tree-optimization/87320 (Last iteration of vectorized loop not executed when peeling for gaps)
PR tree-optimization/87320
* gcc.dg/pr87320.c: New test.
From-SVN: r266805
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr87320.c | 28 |
2 files changed, 33 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 7aad09d..c1b1bc4 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2018-12-04 Jakub Jelinek <jakub@redhat.com> + + PR tree-optimization/87320 + * gcc.dg/pr87320.c: New test. + 2018-12-04 Jeff Law <law@redhat.com> * gcc.dg/strlenopt-58.c: Handle targets with 2 byte wchar_t. diff --git a/gcc/testsuite/gcc.dg/pr87320.c b/gcc/testsuite/gcc.dg/pr87320.c new file mode 100644 index 0000000..38ece59 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr87320.c @@ -0,0 +1,28 @@ +/* PR tree-optimization/87320 */ +/* { dg-do run } */ +/* { dg-options "-O3" } */ +/* { dg-additional-options "-mavx" { target avx_runtime } } */ + +static void __attribute__ ((noinline)) +transpose_vector (unsigned long n) +{ + unsigned long data[2 * n]; + for (unsigned long i = 0; i < 2 * n; i++) + data[i] = 4 * i + 2; + + unsigned long transposed[n]; + for (unsigned long i = 0; i < n; i++) + transposed[i] = data[2 * i]; + + for (unsigned long i = 0; i < n; i++) + if (transposed[i] != 8 * i + 2) + __builtin_abort (); +} + +int +main () +{ + transpose_vector (4); + transpose_vector (120); + return 0; +} |