[Clfs-dev] Optional packages for graphite

[William Harrington]

On Jul 24, 2013, at 1:36 AM, William Harrington wrote:

> Graphite is a great option for GCC to reduce code size, and ISL and  
> CLooG are required for this, but ISL and CLooG can use openscop and  
> piplib, as well, to enhance graphite.

So here are some results of tools:

I was building from x86_64 host to an x86 pentium3 target:

with default opts  unstripped tools: 453M    stripped tools: 217M

graphite opts and -O3 and -march=pentium3 for target:  unstripped  
tools 170M  stripped tools: 155M

Specifically graphite opts used were: -floop-block -floop-interchange - 
floop-strip-mine -fgraphite-identity -floop-parallelize-all -ftree- 
loop-linear

The large size from default opts before stripping is the debugging  
symbols include din the default opts of eglibc and possibly gcc/ 
binutils.

After stripping it was 60M less. There will be even more saved when  
doing a final system build and going beyond.
Be careful with -floop-nest-optimize  it has some problems.

Sincerely,

William Harrington