1 files changed, 48 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr33826.c b/gcc/testsuite/gcc.dg/pr33826.c
new file mode 100644
index 000000000..c091bbcdb
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr33826.c
@@ -0,0 +1,48 @@
+/* Regression test for PR middle-end/33826 */
+/* Verify that recursive functions cannot be pure or const.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target nonpic } */
+/* { dg-options "-O1 -fdump-tree-local-pure-const1 -fdump-ipa-pure-const" } */
+
+int recurese1 (int i)
+{
+  return recurse1 (i+1);
+}
+
+int recurse2a (int i)
+{
+  return recurse2b (i+1);
+}
+
+int recurse2b (int i)
+{
+  return recurse2a (i+1);
+}
+
+int norecurse1a (int i)
+{
+  return norecurse1b (i+1);
+}
+
+int norecurse1b (int i)
+{
+  return i+1;
+}
+
+/* { dg-final { scan-tree-dump "found to be const: norecurse1a" "local-pure-const1" } } */
+/* { dg-final { scan-tree-dump "found to be const: norecurse1b" "local-pure-const1" } } */
+/* { dg-final { scan-tree-dump-not "found to be pure: recurse1" "local-pure-const1" } } */
+/* { dg-final { scan-tree-dump-not "found to be pure: recurse2a" "local-pure-const1" } } */
+/* { dg-final { scan-tree-dump-not "found to be pure: recurse2b" "local-pure-const1" } } */
+/* { dg-final { scan-tree-dump-not "found to be const: recurse1" "local-pure-const1" } } */
+/* { dg-final { scan-tree-dump-not "found to be const: recurse2a" "local-pure-const1" } } */
+/* { dg-final { scan-tree-dump-not "found to be const: recurse2b" "local-pure-const1" } } */
+/* { dg-final { scan-ipa-dump-not "found to be pure: recurse1" "pure-const" } } */
+/* { dg-final { scan-ipa-dump-not "found to be pure: recurse2a" "pure-const" } } */
+/* { dg-final { scan-ipa-dump-not "found to be pure: recurse2b" "pure-const" } } */
+/* { dg-final { scan-ipa-dump-not "found to be const: recurse1" "pure-const" } } */
+/* { dg-final { scan-ipa-dump-not "found to be const: recurse2a" "pure-const" } } */
+/* { dg-final { scan-ipa-dump-not "found to be const: recurse2b" "pure-const" } } */
+/* { dg-final { cleanup-ipa-dump "pure-const" } } */
+/* { dg-final { cleanup-tree-dump "local-pure-const1" } } */