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Date:      Tue, 18 Oct 2011 20:13:23 -0700
From:      Garrett Cooper <yanegomi@gmail.com>
To:        Dimitry Andric <dim@freebsd.org>
Cc:        svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org
Subject:   Re: svn commit: r226518 - head/contrib/llvm/tools/clang/lib/Basic
Message-ID:  <CAGH67wRwGOZjPVUGCBONEvDmbkkjvFhBU_09_T260=7tRnZHVw@mail.gmail.com>
In-Reply-To: <CAGH67wQU87RLqf=9BZiPHkyP0Lk6-JFv%2B9kKMBDsX7SBKZBuNQ@mail.gmail.com>
References:  <201110181737.p9IHbIvW083474@svn.freebsd.org> <CAGH67wQU87RLqf=9BZiPHkyP0Lk6-JFv%2B9kKMBDsX7SBKZBuNQ@mail.gmail.com>

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On Tue, Oct 18, 2011 at 8:08 PM, Garrett Cooper <yanegomi@gmail.com> wrote:
> On Tue, Oct 18, 2011 at 10:37 AM, Dimitry Andric <dim@freebsd.org> wrote:
>> Author: dim
>> Date: Tue Oct 18 17:37:18 2011
>> New Revision: 226518
>> URL: http://svn.freebsd.org/changeset/base/226518
>>
>> Log:
>> =A0Fix the way clang retrieves the major FreeBSD release number from the
>> =A0target triple, so that the __FreeBSD__ and __FreeBSD_cc_version built=
in
>> =A0macros return the expected results.
>>
>> =A0Spotted by: =A0 nalitoja at gmail.com
>>
>> Modified:
>> =A0head/contrib/llvm/tools/clang/lib/Basic/Targets.cpp
>>
>> Modified: head/contrib/llvm/tools/clang/lib/Basic/Targets.cpp
>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D
>> --- head/contrib/llvm/tools/clang/lib/Basic/Targets.cpp Tue Oct 18 16:37=
:28 2011 =A0 =A0 =A0 =A0(r226517)
>> +++ head/contrib/llvm/tools/clang/lib/Basic/Targets.cpp Tue Oct 18 17:37=
:18 2011 =A0 =A0 =A0 =A0(r226518)
>> @@ -238,11 +238,12 @@ protected:
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 MacroBuilder &Bu=
ilder) const {
>> =A0 =A0 // FreeBSD defines; list based off of gcc output
>>
>> - =A0 =A0// FIXME: Move version number handling to llvm::Triple.
>> - =A0 =A0llvm::StringRef Release =3D Triple.getOSName().substr(strlen("f=
reebsd"), 1);
>> + =A0 =A0unsigned Release =3D Triple.getOSMajorVersion();
>> + =A0 =A0if (Release =3D=3D 0U)
>> + =A0 =A0 =A0Release =3D 8U;
>>
>> - =A0 =A0Builder.defineMacro("__FreeBSD__", Release);
>> - =A0 =A0Builder.defineMacro("__FreeBSD_cc_version", Release + "00001");
>> + =A0 =A0Builder.defineMacro("__FreeBSD__", Twine(Release));
>> + =A0 =A0Builder.defineMacro("__FreeBSD_cc_version", Twine(Release * 100=
000U + 1U));
>> =A0 =A0 Builder.defineMacro("__KPRINTF_ATTRIBUTE__");
>> =A0 =A0 DefineStd(Builder, "unix", Opts);
>> =A0 =A0 Builder.defineMacro("__ELF__");
>
> It looks like this commit broke tinderbox for multiple archs.

Rather than just complaining, I figured I should provide a fix (note
the llvm namespace scoping operators for the Twine method)...
-Garrett

$ svn diff contrib/llvm/tools/clang/lib/Basic/Targets.cpp
Index: contrib/llvm/tools/clang/lib/Basic/Targets.cpp
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
--- contrib/llvm/tools/clang/lib/Basic/Targets.cpp      (revision 226524)
+++ contrib/llvm/tools/clang/lib/Basic/Targets.cpp      (working copy)
@@ -242,8 +242,9 @@
     if (Release =3D=3D 0U)
       Release =3D 8U;

-    Builder.defineMacro("__FreeBSD__", Twine(Release));
-    Builder.defineMacro("__FreeBSD_cc_version", Twine(Release * 100000U + =
1U));
+    Builder.defineMacro("__FreeBSD__", llvm::Twine(Release));
+    Builder.defineMacro("__FreeBSD_cc_version",
+        llvm::Twine(Release * 100000U + 1U));
     Builder.defineMacro("__KPRINTF_ATTRIBUTE__");
     DefineStd(Builder, "unix", Opts);
     Builder.defineMacro("__ELF__");



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