If your machine description refers to a non-existent predicate genrecog
crashes. This fixes it.
Is this okay for trunk?
Segher
2016-03-14 Segher Boeesenkool <segher#kernel.crashing.org>
* genrecog.c (safe_predicate_mode): If PRED is NULL, return false.
---
gcc/genrecog.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/gcc/genrecog.c b/gcc/genrecog.c
index f8b8ef4..65882f4 100644
--- a/gcc/genrecog.c
+++ b/gcc/genrecog.c
@@ -3378,6 +3378,9 @@ find_subroutines (routine_type type, state *s, vec <state
*> &procs)
static bool
safe_predicate_mode (const struct pred_data *pred, machine_mode mode)
{
+ if (!pred)
+ return false;
+
/* Scalar integer constants have VOIDmode. */
if (GET_MODE_CLASS (mode) == MODE_INT
&& (pred->codes[CONST_INT]
--
1.9.3
