Re: code generation bug
[
Date Prev][
Date Next][
Thread Prev][
Thread Next]
[
Date Index]
[
Thread Index]
- Subject: Re: code generation bug
- From: askok@...
- Date: 2009年4月16日 10:08:50 +0300
On OS X PowerPC:
<<
Lua 5.1.4 Copyright (C) 1994-2008 Lua.org, PUC-Rio
=1 or false
1
=1 and true
true
=true or false
true
=((1 or false) and true) or false
1
<<
Indeed seems funny that combining expressions with
paranthesis has different result than having them as
separate expressions.
-asko
On 2009年4月15日 21:37:25 -0700
"Kelley, Brian" <bkelley@qualcomm.com> wrote:
I was surprised to notice the following:
Lua 5.1.4 Copyright (C) 1994-2008 Lua.org, PUC-Rio
> =((1 or false) and true) or false
1
Same results on 5.1.2 and 5.1.3, MacOS and Windows.
For what it's worth, I observed in lcode.c that the
OPR_AND expression inherited the 'k' (kind) of VTRUE from
its rhs subexpression, which seems wrong and seems to
throw off the subsequent call to luaK_goiffalse().
-bhk