llvm dev - Dec 2010 - [LLVMdev] asm-verbose (on by default) is really, really slow

$ time ./llc -march=x86 -mcpu=pentium4 -filetype=asm eon.bc -o eon.s
-asm-verbose=false

real	0m17.855s
user	0m17.480s
sys	0m0.380s

$ time ./llc -march=x86 -mcpu=pentium4 -filetype=asm eon.bc -o eon.s

real	0m53.304s
user	0m52.880s
sys	0m0.420s

Maybe this should be off by default?

- David Meyer

> Maybe this should be off by default?
It's off by default on any user-visible tools (e.g. clang / llvm-gcc).
Since llc is a developer tool it does make sense to enable verbose
output by default.

-- 
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University

Very true, but we do want the testsuite to run fast.  Can it be sped up?

-Chris

On Dec 12, 2010, at 10:57 AM, Anton Korobeynikov <anton at
korobeynikov.info> wrote:
>> Maybe this should be off by default?
> It's off by default on any user-visible tools (e.g. clang / llvm-gcc).
> Since llc is a developer tool it does make sense to enable verbose
> output by default.
> 
> -- 
> With best regards, Anton Korobeynikov
> Faculty of Mathematics and Mechanics, Saint Petersburg State University
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev