Hello,
As discussed in [1] and [2] the flag, preventing movt /
movw instructions is also useful outside of IOS. This
patch renames the flag in clang and depends on the
same changes in llvm.
I don't have commit privileges, so it would be nice
if someone can pick this up, preferable directly after
the llvm change, with I tend to submit hereafter (and
is actually split in two, so the llvm patch has the same
subject as the clang one (so I can be reverted if there
is a need to it...)
Regards,
Jeroen
[1]
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130805/183980.html
[2]
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130812/184064.html
commit 93d5296d72dcae95d02d4561d8d96777817dce55
Author: Jeroen Hofstee <[email protected]>
Date: Thu Aug 8 21:21:32 2013 +0200
make arm-use-movt available for all ARM
This updates clang according to a pending patch for llvm to
rename of the -arm-darwin-use-movt to arm-use-movt to make
it available for all of ARM.
note: please apply this close to the llvm change.
diff --git lib/Driver/Tools.cpp lib/Driver/Tools.cpp
index 254bf8b..e594b16 100644
--- lib/Driver/Tools.cpp
+++ lib/Driver/Tools.cpp
@@ -821,7 +821,7 @@ void Clang::AddARMTargetArgs(const ArgList &Args,
// The kext linker doesn't know how to deal with movw/movt.
CmdArgs.push_back("-backend-option");
- CmdArgs.push_back("-arm-darwin-use-movt=0");
+ CmdArgs.push_back("-arm-use-movt=0");
}
// Setting -mno-global-merge disables the codegen global merge pass. Setting
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