<div dir="ltr">I believe that we provide a definition of size_t inside the compiler itself when clang is in MSVC compatibility mode.</div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Sep 30, 2014 at 5:51 PM, Eric Mader <span dir="ltr"><<a href="mailto:emader@gmx.us" target="_blank">emader@gmx.us</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
I did some more investigation of the size_t size error. I
misunderstood what was happening. It turns out that size_t is
already defined before my prefix header is included. I added the
following static_asserts to the font of the header:<br>
<br>
<font face="Courier New, Courier, monospace">static_assert(sizeof(size_t)
!= 4, "sizeof(size_t) == 4");<br>
static_assert(sizeof(size_t) != 8, "sizeof(size_t) == 8");<br>
</font><br>
The first static_assert fires:<br>
<br>
<font face="Courier New, Courier, monospace">1>Build started
9/30/2014 2:29:54 PM.<br>
1>clang-cl.exe : warning : argument unused during compilation:
'/Gm-'<br>
1>clang-cl.exe : warning : argument unused during compilation:
'/GS'<br>
1>clang-cl.exe : warning : argument unused during compilation:
'/fp:precise'<br>
1>clang-cl.exe : warning : argument unused during compilation:
'/FdDebug\x64\vc120.pdb'<br>
1>clang-cl.exe : warning : argument unused during compilation:
'/Gd'<br>
1> In file included from <built-in>:187:<br>
1> In file included from <command line>:19:<br>
1>[elided header file name](9,1): error : static_assert failed
"sizeof(size_t) == 4"<br>
1> static_assert(sizeof(size_t) != 4, "sizeof(size_t) == 4");<br>
1> ^ ~~~~~~~~~~~~~~~~~~~<br>
</font><br>
Later on, I get an error saying that crtdefs.h is trying to redefine
size_t from an unsigned int to an unsigned long long...<br>
<br>
Perhaps one of my preprocessor defines is causing these errors:<br>
<br>
<font face="Courier New, Courier, monospace">WIN32<br>
_DEBUG<br>
_WINDOWS<br>
_USRDLL<br>
_SCL_SECURE_NO_WARNINGS<br>
_CRT_SECURE_NO_WARNINGS<br>
_WIN64<br>
_x86_64_ = 1<br>
</font><br>
(I added the "SECURE_NO_WARNINGS" defines when I ported an earlier
version of this code to VS 2005; don't remember why any more...)<br>
(There are a couple of other defines that are specific to the DLL
I'm trying to build)<br>
<br>
Regards,<br>
Eric Mader<div><div class="h5"><br>
<br>
<div>On 9/30/14, 1:01 PM, Eric Mader wrote:<br>
</div>
<blockquote type="cite">
Hi Reid,<br>
<br>
I copied the x64 toolsets by hand; they got installed to
C:\Program Files (x86)\LLVM\tools\msbuild\x64; they just didn't
get moved correctly by install.bat.<br>
<br>
I just verified that the LLVM-vs2013 toolset.props is correct.<br>
<br>
If it is a bitness problem, perhaps I'm failing to define
something correctly?<br>
<br>
Regards,<br>
Eric<br>
<br>
<div>On 9/30/14, 11:29 AM, Reid Kleckner
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">This looks like some kind of bitness conflict. If
you are building for win64, are you sure clang is getting the
-m64 argument?
<div><br>
</div>
<div>I recall that you copied the win32 platform toolset xml
files over by hand, and I don't think they will have the
correct flags. If you see this line in the x64 toolset.props
file, replace -m32 with -m64 and try again:</div>
<div><AdditionalOptions>-m32 -fmsc-version=1700
%(AdditionalOptions)</AdditionalOptions><br>
</div>
<div><br>
</div>
<div>In the meantime, I think Hans is trying to fix the
installation of those xml files and hopefully that will fix
issues for other users going forwards.</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Tue, Sep 30, 2014 at 1:55 PM, Eric
Mader <span dir="ltr"><<a href="mailto:emader@gmx.us" target="_blank">emader@gmx.us</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> I'm getting compile
errors because size_t is getting redefined. My "forced
include file" starts with:<br>
<br>
<font face="Courier New, Courier, monospace">#if
BUILDING_FOR_WINDOWS<br>
#define NOMINMAX<br>
<br>
/* deal with the fact that windef.h also defines BOOL
*/<br>
#define BOOL WINBOOL<br>
<br>
#include <windows.h><br>
#include <intrin.h><br>
<br>
#undef BOOL<br>
#endif<br>
</font><br>
Looking at the preprocessor expansion of a typical .cpp
file, I see that crtdefs.h defines size_t like this:<br>
<br>
<font face="Courier New, Courier, monospace">typedef
unisgned __int64 size_t;<br>
</font><br>
Later on, <LLVM>\lib\clang\3.6.0\includes\stddef.h
defines it as:<br>
<br>
<font face="Courier New, Courier, monospace">typedef
unsigned int size_t;<br>
</font><br>
Is there some other magic I need to do to get these to
work?<br>
<br>
I'm also seeing a bunch of errors like this having to do
with intrinsics:<br>
<br>
<font face="Courier New, Courier, monospace">1> In
file included from C:\Program Files (x86)\Microsoft
Visual Studio 12.0\VC\include\algorithm:6:<br>
1> In file included from C:\Program Files
(x86)\Microsoft Visual Studio
12.0\VC\include\xmemory:6:<br>
1> In file included from C:\Program Files
(x86)\Microsoft Visual Studio
12.0\VC\include\xmemory0:909:<br>
1> In file included from C:\Program Files
(x86)\LLVM\msbuild-bin\..\lib\clang\3.6.0\include\intrin.h:34:<br>
1> In file included from C:\Program Files
(x86)\LLVM\msbuild-bin\..\lib\clang\3.6.0\include\x86intrin.h:29:<br>
1> In file included from C:\Program Files
(x86)\LLVM\msbuild-bin\..\lib\clang\3.6.0\include\immintrin.h:28:<br>
1>C:\Program Files
(x86)\LLVM\msbuild-bin\..\lib\clang\3.6.0\include\mmintrin.h(52,40):
error : cannot initialize a parameter of type
'__attribute__((__vector_size__(2 * sizeof(int))))
int' (vector of 2 'int' values) with an rvalue of type
'__v2si' (aka 'int')<br>
1> return
__builtin_ia32_vec_ext_v2si((__v2si)__m, 0);<br>
1>
^~~~~~~~~~~<br>
</font><br>
I suspect that these might be caused by the same thing
as the size_t problem...<br>
<br>
Regards,<br>
Eric Mader<br>
<br>
<br>
<br>
</div>
<br>
_______________________________________________<br>
LLVM Developers mailing list<br>
<a href="mailto:LLVMdev@cs.uiuc.edu" target="_blank">LLVMdev@cs.uiuc.edu</a>
<a href="http://llvm.cs.uiuc.edu" target="_blank">http://llvm.cs.uiuc.edu</a><br>
<a href="http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev" target="_blank">http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev</a><br>
<br>
</blockquote>
</div>
<br>
</div>
</blockquote>
<br>
<br>
<fieldset></fieldset>
<br>
<pre>_______________________________________________
LLVM Developers mailing list
<a href="mailto:LLVMdev@cs.uiuc.edu" target="_blank">LLVMdev@cs.uiuc.edu</a> <a href="http://llvm.cs.uiuc.edu" target="_blank">http://llvm.cs.uiuc.edu</a>
<a href="http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev" target="_blank">http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev</a>
</pre>
</blockquote>
<br>
</div></div></div>
<br>_______________________________________________<br>
LLVM Developers mailing list<br>
<a href="mailto:LLVMdev@cs.uiuc.edu">LLVMdev@cs.uiuc.edu</a> <a href="http://llvm.cs.uiuc.edu" target="_blank">http://llvm.cs.uiuc.edu</a><br>
<a href="http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev" target="_blank">http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev</a><br>
<br></blockquote></div><br></div>