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| author | Richard Guenther <rguenther@suse.de> | 2010-07-02 12:05:59 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2010-07-02 12:05:59 +0000 |
| commit | 19368333588ed6b99b62b0a48e54e007db380286 (patch) | |
| tree | f8bf11107b22f897df0742d75fe33c354e2249c7 | |
| parent | 2334baf4907c77615b44d9ce15a6ae95246b548b (diff) | |
| download | gcc-19368333588ed6b99b62b0a48e54e007db380286.zip gcc-19368333588ed6b99b62b0a48e54e007db380286.tar.gz gcc-19368333588ed6b99b62b0a48e54e007db380286.tar.bz2 | |
tree-data-ref.c (initialize_data_dependence_relation): Handle mismatching number of dimensions properly.
2010-07-02 Richard Guenther <rguenther@suse.de>
* tree-data-ref.c (initialize_data_dependence_relation): Handle
mismatching number of dimensions properly.
* g++.dg/torture/20100702-1.C: New testcase.
From-SVN: r161705
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/torture/20100702-1.C | 37 | ||||
| -rw-r--r-- | gcc/tree-data-ref.c | 9 |
4 files changed, 54 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4d05ea2..8afb6f857 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2010-07-02 Richard Guenther <rguenther@suse.de> + + * tree-data-ref.c (initialize_data_dependence_relation): Handle + mismatching number of dimensions properly. + 2010-07-02 Ulrich Weigand <Ulrich.Weigand@de.ibm.com> PR target/44707 diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 9fe76bc..a05c06d 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2010-07-02 Richard Guenther <rguenther@suse.de> + + * g++.dg/torture/20100702-1.C: New testcase. + 2010-07-02 Ulrich Weigand <Ulrich.Weigand@de.ibm.com> PR target/44707 diff --git a/gcc/testsuite/g++.dg/torture/20100702-1.C b/gcc/testsuite/g++.dg/torture/20100702-1.C new file mode 100644 index 0000000..3d223ff --- /dev/null +++ b/gcc/testsuite/g++.dg/torture/20100702-1.C @@ -0,0 +1,37 @@ +// { dg-do compile } +// { dg-options "-fprefetch-loop-arrays -w" } + +class ggPoint3 { +public: + ggPoint3(); + inline double &x() { + return e[0]; + } + inline double &y() { + return e[1]; + } + ggPoint3(const ggPoint3 &p); + double e[3]; +}; +class ggBox3 { +public: + ggPoint3 min() const; +}; +class ggHAffineMatrix3; +ggPoint3 operator*(const ggHAffineMatrix3 &m, const ggPoint3 &v); +void foo (ggPoint3 *); +void SetMatrix(ggHAffineMatrix3& toworld, ggBox3& box) +{ + ggPoint3 p[2][2][2]; + int i, j, k; + for (i = 0; i < 2; j++) + for (k = 0; k < 2; k++) + { + if (i == 0) + p[i][j][k].x() = box.min().x(); + if (j == 0) + p[i][j][k].y() = box.min().y(); + p[i][j][k] = toworld * p[i][j][k]; + } + foo (&p[0][0][0]); +} diff --git a/gcc/tree-data-ref.c b/gcc/tree-data-ref.c index 7ab7779..e7aa277 100644 --- a/gcc/tree-data-ref.c +++ b/gcc/tree-data-ref.c @@ -1452,7 +1452,14 @@ initialize_data_dependence_relation (struct data_reference *a, return res; } - gcc_assert (DR_NUM_DIMENSIONS (a) == DR_NUM_DIMENSIONS (b)); + /* If the number of dimensions of the access to not agree we can have + a pointer access to a component of the array element type and an + array access while the base-objects are still the same. Punt. */ + if (DR_NUM_DIMENSIONS (a) != DR_NUM_DIMENSIONS (b)) + { + DDR_ARE_DEPENDENT (res) = chrec_dont_know; + return res; + } DDR_AFFINE_P (res) = true; DDR_ARE_DEPENDENT (res) = NULL_TREE; |