Hello,
I'm trying to print the instruction count of a bytecode file using the 2.4 release of LLVM. I found llvm-2.4/lib/Analysis/Instcount.cpp but I'm not sure what to do with it. I also looked at llvm-bcanalyzer. The documentation says this command is supposed to print the instruction count in the summary, but it doesn't seem to be doing so.
Does anyone know what I should be doing?
--Patrick
Patrick Simmons wrote:
Hello,
I'm trying to print the instruction count of a bytecode file using the
2.4 release of LLVM. I found llvm-2.4/lib/Analysis/Instcount.cpp but
I'm not sure what to do with it. I also looked at llvm-bcanalyzer. The
documentation says this command is supposed to print the instruction
count in the summary, but it doesn't seem to be doing so.Does anyone know what I should be doing?
Looking at the LLVM 2.5 version, it prints out the count of the number
of instructions as part of its statistics.
To run it on a bitcode file, you should be able to do the following:
opt -stats -analyze -instcount <bitcodefile>
The -stats option tells opt to print statistics collected by each pass.
The -analyze option tells opt that it is only doing analysis and not any
transformation. The -instcount is the command line option to run the
code in InstCount.cpp (notice the RegisterPass line in the source code;
this assigns a command line option to the pass for use in opt).
-- John T.
John Criswell wrote:
Patrick Simmons wrote:
Hello,
I'm trying to print the instruction count of a bytecode file using the 2.4 release of LLVM. I found llvm-2.4/lib/Analysis/Instcount.cpp but I'm not sure what to do with it. I also looked at llvm-bcanalyzer. The documentation says this command is supposed to print the instruction count in the summary, but it doesn't seem to be doing so.
Does anyone know what I should be doing?
Looking at the LLVM 2.5 version, it prints out the count of the number
of instructions as part of its statistics.To run it on a bitcode file, you should be able to do the following:
opt -stats -analyze -instcount <bitcodefile>
The -stats option tells opt to print statistics collected by each pass. The -analyze option tells opt that it is only doing analysis and not any
transformation. The -instcount is the command line option to run the
code in InstCount.cpp (notice the RegisterPass line in the source code;
this assigns a command line option to the pass for use in opt).-- John T.
It works; thanks!
--Patrick