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-rw-r--r--gcc/ChangeLog4
-rw-r--r--gcc/genrecog.c8
2 files changed, 10 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 718a270bb9f..330d5abdf66 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+Sat Oct 30 14:38:22 1999 Richard Henderson <rth@cygnus.com>
+
+ * genrecog.c (write_switch): Check for duplicate CODE cases.
+
Sat Oct 30 14:31:48 1999 Richard Henderson <rth@cygnus.com>
* ggc-common.c: Update pre-function commentary.
diff --git a/gcc/genrecog.c b/gcc/genrecog.c
index 5aea00490f0..464c49921a7 100644
--- a/gcc/genrecog.c
+++ b/gcc/genrecog.c
@@ -1695,13 +1695,14 @@ write_switch (start, depth)
{
char codemap[NUM_RTX_CODE];
struct decision *ret;
+ RTX_CODE code;
memset (codemap, 0, sizeof(codemap));
printf (" switch (GET_CODE (x%d))\n {\n", depth);
+ code = p->tests->u.code;
do
{
- RTX_CODE code = p->tests->u.code;
printf (" case ");
print_code (code);
printf (":\n goto L%d;\n", p->success.first->number);
@@ -1710,7 +1711,10 @@ write_switch (start, depth)
codemap[code] = 1;
p = p->next;
}
- while (p && p->tests->type == DT_code && !p->tests->next);
+ while (p
+ && ! p->tests->next
+ && p->tests->type == DT_code
+ && ! codemap[code = p->tests->u.code]);
/* If P is testing a predicate that we know about and we haven't
seen any of the codes that are valid for the predicate, we can
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