[llvm-dev] Trouble in reproducing bad codegen errors [GSoC]

[preejackie via llvm-dev]

Hi all,

I'm working on finding(generating) programs which results in bad codegen 
when (-g, !-g) option. As suggested in llvm-dev list I tried diffing the 
disassembly of object files .text section with -g enabled and not 
enabled for all SingleSource unittests .c files, I used all optimization 
levels [0,1,2,3,s,z] but I didn't get any bad codegen behavior.

And then, I used csmith tool to randomly generate .cpp files and compile 
them with (-g, !-g) at various opt levels, after trying for 3 hours I 
can only able to produce 2 bad codegen behaviors. Is there any way for 
producing bad codegen behaviors?

Csmith use many options to generate code, anyone with csmith experience 
please guide me how to make use of those options to fullest in this case?

Thank you very much :)

-- 
Have a great day!
PreeJackie

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