ruby: fix and/or precedence in slicc
The slicc compiler currently treats && and || with the same precedence.
This is highly non-intuitive to people used to C, and was probably an
error. This patch makes && bind tighter than ||.
For example, previously:
if (A || B && C)
compiled to:
if ((A || B) && C)
With this patch, it compiles to:
if (A || (B && C))
Change-Id: Idbbd5b50cc86a8d6601045adc14a253284d7b791
Signed-off-by: Lena Olson (leolson@google.com)
Reviewed-on: https://gem5-review.googlesource.com/2168
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Joe Gross <criusx@gmail.com>
Reviewed-by: Sooraj Puthoor <puthoorsooraj@gmail.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
[ Rebased onto master ]
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
diff --git a/COPYING b/COPYING
index 5fac938..a72388e 100644
--- a/COPYING
+++ b/COPYING
@@ -45,4 +45,4 @@
Copyright (c) 1993-1994 Christopher G. Demetriou
Copyright (c) 1997-2002 Makoto Matsumoto and Takuji Nishimura
Copyright (c) 1998,2001 Manuel Bouyer.
-Copyright (c) 2016 Google Inc.
+Copyright (c) 2016-2017 Google Inc.
diff --git a/src/mem/slicc/parser.py b/src/mem/slicc/parser.py
index 4afe0d3..5c2b212 100644
--- a/src/mem/slicc/parser.py
+++ b/src/mem/slicc/parser.py
@@ -1,4 +1,5 @@
# Copyright (c) 2009 The Hewlett-Packard Development Company
+# Copyright (c) 2017 Google Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
@@ -25,6 +26,7 @@
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Authors: Nathan Binkert
+# Lena Olson
import os.path
import re
@@ -158,7 +160,8 @@
precedence = (
('left', 'INCR', 'DECR'),
- ('left', 'AND', 'OR'),
+ ('left', 'OR'),
+ ('left', 'AND'),
('left', 'EQ', 'NE'),
('left', 'LT', 'GT', 'LE', 'GE'),
('left', 'RIGHTSHIFT', 'LEFTSHIFT'),
