llvm dev - Aug 2010 - [LLVMdev] Compile error for the Hello pass example

Hello all,

I'm trying the Hello pass example in the "Writing an LLVM Pass"
webpage (
http://llvm.org/docs/WritingAnLLVMPass.html#basiccode ).  I followed the
instructions to compile (with gcc-4.2) the Hello.cpp, but I got the compile
errors:

Hello.cpp:20: error:  expected identifier before string constant
Hello.cpp:20: error:  expected ',' or '...' before string
constant
Hello.cpp:20: error:  expected constructor, destructor, or type conversion
before ';' token

which is the line "INITIALIZE_PASS(Hello, "Hello", "Hello
World Pass",
false, false);" in the code.  Could any one help me with this?  Thank you
very much!

Best,
Daniel
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On Aug 11, 2010, at 8:54 PM, 迪 wrote:
> I got the compile errors:
>
> Hello.cpp:20: error:  expected identifier before string constant
> Hello.cpp:20: error:  expected ',' or '...' before string
constant
> Hello.cpp:20: error:  expected constructor, destructor, or type  
> conversion before ';' token
>
> which is the line "INITIALIZE_PASS(Hello, "Hello",
"Hello World
> Pass", false, false);" in the code.
The docs you cited are for the LLVM trunk, and you may be using LLVM  
2.7, which may not have a definition of INITIALIZE_PASS. Use the 2.7  
docs instead:

http://llvm.org/releases/2.7/docs/WritingAnLLVMPass.html#basiccode

Trevor