From 3f954c48ad4cdcdad239b71560592932bb75f870 Mon Sep 17 00:00:00 2001
From: "Sven M. Hallberg" <pesco@khjk.org>
Date: Mon, 17 Feb 2020 12:48:49 +0100
Subject: [PATCH] add explanatory text to regression test
---
src/t_regression.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/t_regression.c b/src/t_regression.c
index 3543e49f..4b1f2bfc 100644
--- a/src/t_regression.c
+++ b/src/t_regression.c
@@ -429,7 +429,10 @@ static void test_issue92() {
* "src/backends/lalr.c", line 341, function "h_lalr_compile"
*
* the bug happens when trying to compute h_follow() for 6B8 in state 6,
- * production "" (*).
+ * production "" (*). intermediate results could end up in the memoization
+ * table and be treated as final by later calls to h_follow(). the problem
+ * could appear or not depending on the order of nonterminals (i.e. pointers)
+ * in a hashtable.
*/
int r = h_compile(str, PB_LALR, NULL);
g_check_cmp_int(r, ==, 0);
--
GitLab