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| author | Jeff Law <law@redhat.com> | 2017-10-12 12:09:11 -0600 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2017-10-12 12:09:11 -0600 |
| commit | 8b48488fbe122c3fa56be84fd048846207466eb0 (patch) | |
| tree | 04d6e0cecca0310742ce96afbb06b1c47c5b4402 | |
| parent | 62e1c6780d7794bd000a15b2fdbfa65dd63a223c (diff) | |
| download | gcc-8b48488fbe122c3fa56be84fd048846207466eb0.zip gcc-8b48488fbe122c3fa56be84fd048846207466eb0.tar.gz gcc-8b48488fbe122c3fa56be84fd048846207466eb0.tar.bz2 | |
tree-ssa-dse.c (valid_ao_ref_for_dse): Reject ao_refs with negative offsets.
* tree-ssa-dse.c (valid_ao_ref_for_dse): Reject ao_refs with
negative offsets.
From-SVN: r253691
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/tree-ssa-dse.c | 1 |
2 files changed, 6 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index dc17b70..d5ee088 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2017-10-12 Jeff Law <law@redhat.com> + + * tree-ssa-dse.c (valid_ao_ref_for_dse): Reject ao_refs with + negative offsets. + 2017-10-12 Martin Sebor <msebor@redhat.com> PR other/82301 diff --git a/gcc/tree-ssa-dse.c b/gcc/tree-ssa-dse.c index 6f58fff..87e2fce 100644 --- a/gcc/tree-ssa-dse.c +++ b/gcc/tree-ssa-dse.c @@ -131,6 +131,7 @@ valid_ao_ref_for_dse (ao_ref *ref) && ref->max_size != -1 && ref->size != 0 && ref->max_size == ref->size + && ref->offset >= 0 && (ref->offset % BITS_PER_UNIT) == 0 && (ref->size % BITS_PER_UNIT) == 0 && (ref->size != -1)); |