diff options
| author | kyukhin <kyukhin@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-05-24 09:08:45 +0000 |
|---|---|---|
| committer | kyukhin <kyukhin@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-05-24 09:08:45 +0000 |
| commit | f982ec99481f34905deb32c8c5fb70a67a241f8a (patch) | |
| tree | a4f0295eb7ee3be44054ba1e4ed8760a40410884 /gcc/tree-ssa-sccvn.c | |
| parent | a4f25704ac8b4a40007b85671d012cef0f345e53 (diff) | |
| download | gcc-f982ec99481f34905deb32c8c5fb70a67a241f8a.tar.gz | |
gcc/ChangeLog
PR tree-ssa/57385
* tree-ssa-sccvn.c (fully_constant_vn_reference_p): Check
that index is not negative.
gcc/testsuite/ChangeLog
PR tree-ssa/57385
* gcc.dg/tree-ssa/pr57385.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@199282 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-sccvn.c')
| -rw-r--r-- | gcc/tree-ssa-sccvn.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/tree-ssa-sccvn.c b/gcc/tree-ssa-sccvn.c index 49d61b0c239..0e7a74c2a9c 100644 --- a/gcc/tree-ssa-sccvn.c +++ b/gcc/tree-ssa-sccvn.c @@ -1294,6 +1294,7 @@ fully_constant_vn_reference_p (vn_reference_t ref) == TYPE_MODE (TREE_TYPE (TREE_TYPE (arg0->op0)))) && GET_MODE_CLASS (TYPE_MODE (op->type)) == MODE_INT && GET_MODE_SIZE (TYPE_MODE (op->type)) == 1 + && tree_int_cst_sgn (op->op0) >= 0 && compare_tree_int (op->op0, TREE_STRING_LENGTH (arg0->op0)) < 0) return build_int_cst_type (op->type, (TREE_STRING_POINTER (arg0->op0) |