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| author | Richard Guenther <rguenther@suse.de> | 2008-05-15 08:21:32 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2008-05-15 08:21:32 +0000 |
| commit | 45ff5edaea467950434730376d3abd8e6cebe196 (patch) | |
| tree | 99675451abeb5c9e80d68e0b7b6f15dd819bb283 /gcc | |
| parent | e491ed09b31dc8ab89cf84cc5f94b3ee02792d12 (diff) | |
| download | gcc-45ff5edaea467950434730376d3abd8e6cebe196.zip gcc-45ff5edaea467950434730376d3abd8e6cebe196.tar.gz gcc-45ff5edaea467950434730376d3abd8e6cebe196.tar.bz2 | |
re PR tree-optimization/34330 (-ftree-parallelize-loops=4 ICE with the vectorizer also)
2008-05-15 Richard Guenther <rguenther@suse.de>
PR tree-optimization/34330
* tree-ssa-alias.c (get_smt_for): Only assert that accesses
through the pointer will alias the SMT.
* gcc.dg/torture/pr34330.c: New testcase.
From-SVN: r135329
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/torture/pr34330.c | 21 | ||||
| -rw-r--r-- | gcc/tree-ssa-alias.c | 7 |
4 files changed, 37 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index c39de0f..7451ace 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2008-05-15 Richard Guenther <rguenther@suse.de> + + PR tree-optimization/34330 + * tree-ssa-alias.c (get_smt_for): Only assert that accesses + through the pointer will alias the SMT. + 2008-05-14 Andreas Tobler <a.tobler@schweiz.org> * config/sparc/sparc.h (NO_PROFILE_COUNTERS): Define as 0. diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 02ef0b5..8215e22 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2008-05-15 Richard Guenther <rguenther@suse.de> + + PR tree-optimization/34330 + * gcc.dg/torture/pr34330.c: New testcase. + 2008-05-14 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org> PR fortran/36059 diff --git a/gcc/testsuite/gcc.dg/torture/pr34330.c b/gcc/testsuite/gcc.dg/torture/pr34330.c new file mode 100644 index 0000000..85cfe37 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr34330.c @@ -0,0 +1,21 @@ +/* { dg-do compile } */ +/* { dg-options "-ftree-parallelize-loops=4 -ftree-vectorize" } */ + +struct T +{ + int t; + struct { short s1, s2, s3, s4; } *s; +}; + +void +foo (int *a, int *b, int *c, int *d, struct T *e) +{ + int i; + for (i = 0; i < e->t; i++) + { + e->s[i].s1 = a[i]; + e->s[i].s2 = b[i]; + e->s[i].s3 = c[i]; + e->s[i].s4 = d[i]; + } +} diff --git a/gcc/tree-ssa-alias.c b/gcc/tree-ssa-alias.c index ddd7937..a054329 100644 --- a/gcc/tree-ssa-alias.c +++ b/gcc/tree-ssa-alias.c @@ -3025,8 +3025,11 @@ get_smt_for (tree ptr, struct alias_info *ai) TREE_THIS_VOLATILE (tag) |= TREE_THIS_VOLATILE (tag_type); /* Make sure that the symbol tag has the same alias set as the - pointed-to type. */ - gcc_assert (tag_set == get_alias_set (tag)); + pointed-to type or at least accesses through the pointer will + alias that set. The latter can happen after the vectorizer + created pointers of vector type. */ + gcc_assert (tag_set == get_alias_set (tag) + || alias_set_subset_of (tag_set, get_alias_set (tag))); return tag; } |