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-rw-r--r--gcc/tree-vrp.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/tree-vrp.c b/gcc/tree-vrp.c
index 06931f1f74d..9c2272a5f61 100644
--- a/gcc/tree-vrp.c
+++ b/gcc/tree-vrp.c
@@ -3843,8 +3843,8 @@ find_conditional_asserts (basic_block bb, tree last)
static int
compare_case_labels (const void *p1, const void *p2)
{
- tree case1 = *(tree *)p1;
- tree case2 = *(tree *)p2;
+ const_tree const case1 = *(const_tree const*)p1;
+ const_tree const case2 = *(const_tree const*)p2;
unsigned int uid1 = DECL_UID (CASE_LABEL (case1));
unsigned int uid2 = DECL_UID (CASE_LABEL (case2));