llvm dev - Aug 2018 - LLVM Pass in compiling and linking

Hi

According to the official documentation. It says to use the tool opt -load
to run LLVM pass on the target bitcode.

According to my observation. When the program is very large, it is very
slow and not efficient. I noticed that LLVM support to run LLVM pass during
the compiling time or linking time.

For compiling time. It seems that the option -Xclang -load -Xclang
mypass.so will work. However, after generating the object. the ld linker
will say that it has no option -load. Thus aborted.

What can I do? I just want to write a LLVM pass and run it during the
compiling time.  No documentation is found. Could anyone tell me or give me
some help? Many Thanks

Regards
Muhui
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Modify lib/Transforms/IPO/PassManagerBuilder.cpp to statically link and run your
pass

Zhang
> 在 2018年8月9日，14:16，Muhui Jiang via llvm-dev <llvm-dev at
lists.llvm.org> 写道：
> 
> Hi
> 
> According to the official documentation. It says to use the tool opt -load
to run LLVM pass on the target bitcode.
> 
> According to my observation. When the program is very large, it is very
slow and not efficient. I noticed that LLVM support to run LLVM pass during the
compiling time or linking time.
> 
> For compiling time. It seems that the option -Xclang -load -Xclang
mypass.so will work. However, after generating the object. the ld linker will
say that it has no option -load. Thus aborted.
> 
> What can I do? I just want to write a LLVM pass and run it during the
compiling time.  No documentation is found. Could anyone tell me or give me some
help? Many Thanks
> 
> Regards
> Muhui
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