diff options
| author | Richard Biener <rguenther@suse.de> | 2016-09-21 07:37:18 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2016-09-21 07:37:18 +0000 |
| commit | f955c4c4837a491a8e8c3962867f276a94125dde (patch) | |
| tree | 911145e7d1623298e8ba595ddad6269fe773491f | |
| parent | 096506bb6e4bea8d0f8beafb5eff866e4a7ce3fe (diff) | |
| download | gcc-f955c4c4837a491a8e8c3962867f276a94125dde.zip gcc-f955c4c4837a491a8e8c3962867f276a94125dde.tar.gz gcc-f955c4c4837a491a8e8c3962867f276a94125dde.tar.bz2 | |
re PR tree-optimization/77621 (Internal compiler error for mtune=atom + msse2)
2016-09-21 Richard Biener <rguenther@suse.de>
Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/77621
* tree-vect-data-refs.c (vect_analyze_data_ref_accesses): Split
group at non-vectorizable stmts.
* gcc.dg/pr77621.c: New testcase.
Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r240302
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr77621.c | 11 | ||||
| -rw-r--r-- | gcc/tree-vect-data-refs.c | 7 |
4 files changed, 31 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index faa7fb2..35f6e3a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2016-09-21 Richard Biener <rguenther@suse.de> + Jakub Jelinek <jakub@redhat.com> + + PR tree-optimization/77621 + * tree-vect-data-refs.c (vect_analyze_data_ref_accesses): Split + group at non-vectorizable stmts. + 2016-09-21 Kugan Vivekanandarajah <kuganv@linaro.org> PR tree-optimization/72835 diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index c355f21..04613e4 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2016-09-21 Richard Biener <rguenther@suse.de> + Jakub Jelinek <jakub@redhat.com> + + PR tree-optimization/77621 + * gcc.dg/pr77621.c: New testcase. + 2016-09-21 Paul Thomas <pault@gcc.gnu.org> PR fortran/77657 diff --git a/gcc/testsuite/gcc.dg/pr77621.c b/gcc/testsuite/gcc.dg/pr77621.c new file mode 100644 index 0000000..e280452 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr77621.c @@ -0,0 +1,11 @@ +/* { dg-do compile } */ +/* { dg-options "-O3" } */ +/* { dg-additional-options "-mtune=atom -msse2" { target i?86-*-* x86_64-*-* } } */ + +void +foo (double *x, int *y) +{ + int i; + for (i = 0; i < 8; i++) + x[i] -= y[i] * x[i + 1]; +} diff --git a/gcc/tree-vect-data-refs.c b/gcc/tree-vect-data-refs.c index 03c4a66..7c5f101 100644 --- a/gcc/tree-vect-data-refs.c +++ b/gcc/tree-vect-data-refs.c @@ -2711,10 +2711,17 @@ vect_analyze_data_ref_accesses (vec_info *vinfo) data_reference_p dra = datarefs_copy[i]; stmt_vec_info stmtinfo_a = vinfo_for_stmt (DR_STMT (dra)); stmt_vec_info lastinfo = NULL; + if (! STMT_VINFO_VECTORIZABLE (stmtinfo_a)) + { + ++i; + continue; + } for (i = i + 1; i < datarefs_copy.length (); ++i) { data_reference_p drb = datarefs_copy[i]; stmt_vec_info stmtinfo_b = vinfo_for_stmt (DR_STMT (drb)); + if (! STMT_VINFO_VECTORIZABLE (stmtinfo_b)) + break; /* ??? Imperfect sorting (non-compatible types, non-modulo accesses, same accesses) can lead to a group to be artificially |