From 911feb376cac5c82c0b20574136f4269f81c24bf Mon Sep 17 00:00:00 2001
From: arghdos <arghdos@gmail.com>
Date: Sat, 3 Dec 2016 13:01:26 -0500
Subject: [PATCH] initialize first entries on the if_stack to have the correct
 insn_predicates in case it's immediately popped off

---
 loopy/kernel/creation.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/loopy/kernel/creation.py b/loopy/kernel/creation.py
index 97a4771c1..ba75ac95f 100644
--- a/loopy/kernel/creation.py
+++ b/loopy/kernel/creation.py
@@ -792,6 +792,10 @@ def parse_instructions(instructions, defines):
                     | frozenset([predicate]))
 
             insn_options_stack.append(options)
+
+            #add to the if_stack
+            if_options = options.copy()
+            if_options['insn_predicates'] = options["predicates"]
             if_predicates_stack.append(options)
             del options
             del predicate
@@ -825,7 +829,6 @@ def parse_instructions(instructions, defines):
             else:
                 assert else_match is not None
                 if not last_if_predicates:
-                    import pdb; pdb.set_trace()
                     raise LoopyError("'else' without 'if'/'elif' encountered")
                 additional_preds = frozenset()
 
-- 
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