llvm dev - Feb 2011 - [LLVMdev] Windows/Visual Studio 2010 warnings (WARNINGS!)

Hi,

I stumbled across three warnings in LLVM when building with MS Visual 
Studio 2010.  It has been my experience that different compilers detect 
different things, so I thought I'd pass them on to you (in case your 
compiler does not warn about these things):

warning C4805: '==' : unsafe mix of type 'bool' and type
'unsigned int'
in operation    lib\Transforms\IPO\ExtractGV.cpp            58        
     1    LLVMipo
warning C4805: '==' : unsafe mix of type 'bool' and type
'unsigned int'
in operation    lib\Transforms\IPO\ExtractGV.cpp            68        
     1    LLVMipo
warning C4065: switch statement contains 'default' but no 'case'
labels                        lib\Target\X86\X86GenRegisterInfo.inc    
4360       1    LLVMX86CodeGen

The two first seem worth some attention, the latter just seems slightly 
bizarre.


Cheers,
Mikael

P.S. I was thinking you perhaps could make a blinking button labeled 
"Windows" on the front page of http://www.llvm.org, which when clicked
guided people through the steps needed to build on Windows?  Just a 
joke, but I do feel slightly daft.  It's all in the docs.  It is just 
that there are so many docs and so little expectation of native Windows 
support given the fact that you only provide MINGW32 executables.

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> P.S. I was thinking you perhaps could make a blinking button labeled
> "Windows" on the front page of http://www.llvm.org, which when
clicked
> guided people through the steps needed to build on Windows?
Shouldn't there be a button entitled "Linux" then? And "Mac
OS X" ?
And "FreeBSD"? ...

-- 
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University

Hi Anton,
>> P.S. I was thinking you perhaps could make a blinking button labeled
>> "Windows" on the front page of http://www.llvm.org, which
when clicked
>> guided people through the steps needed to build on Windows?
> Shouldn't there be a button entitled "Linux" then? And
"Mac OS X" ?
> And "FreeBSD"? ...
it should be possible to query the browser to find out which O/S it is
running on and display the appropriate button :)

Ciao, Duncan.

On 02/19/2011 23:19, Mikael Lyngvig wrote:
> P.S. I was thinking you perhaps could make a blinking button labeled 
> "Windows" on the front page of http://www.llvm.org, which when
clicked
> guided people through the steps needed to build on Windows?  Just a 
> joke, but I do feel slightly daft.  It's all in the docs.  It is just 
> that there are so many docs and so little expectation of native 
> Windows support given the fact that you only provide MINGW32 executables.
This button could also be made to move with the scroll window with some 
neat JavaScript so it can't be missed.

Yuri
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Mikael Lyngvig <mikael at lyngvig.org> writes:

[snip]
> It is just
> that there are so many docs and so little expectation of native
> Windows support given the fact that you only provide MINGW32
> executables.
Executables created by MinGW are as native as those created by Visual
Studio.

Forwarding to llvmdev


---------- Forwarded message ----------
From: Mikael Lyngvig <mikael at lyngvig.org>
Date: Sun, Feb 20, 2011 at 16:02
Subject: Re: [LLVMdev] Windows/Visual Studio 2010 warnings (WARNINGS!)
To: Anton Korobeynikov <anton at korobeynikov.info>


I was joking about the fact that I am only a Windows user (LLVM
initially does look rather *nix biased).

But I guess you have a valid point.  The problem, as I see it, is that
there is a LOT of (great) documentation.  If you stumble across the
site and wanna get flying right away, you will hit the ground shortly
after.

Perhaps something could be done to make life easier on newbies like
myself.  Here's a couple of ideas:

1. "The LLVM Getting Started Guide" could be written in bold typeface.
2. At the very top of "The LLVM Getting Started Guide" could be a bold
link to the "Getting Started with the LLVM System using Microsoft
Visual Studio" page.

Those are just my two cents.

I didn't intend to imply that Linux, Mac OS X, or FreeBSD guys are
less than Windows guys.  More on the contrary (except for the Mac OS X
guys).  Most Linux and FreeBSD users know what they are doing.

P.S. Has anybody tried building LLVM with the OpenWatcom compiler?  If
not, I will give it a try because it is about 10 percent faster than
the Microsoft compiler in my 10 year old real-life tests (a print
server).


Cheers,
Mikael

Den 20-02-2011 13:49, Anton Korobeynikov skrev:

P.S. I was thinking you perhaps could make a blinking button labeled
"Windows" on the front page of http://www.llvm.org, which when clicked
guided people through the steps needed to build on Windows?

Shouldn't there be a button entitled "Linux" then? And "Mac
OS X" ?
And "FreeBSD"? ...





-- 
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University