[LLVMdev] opt, llcc, ll++, -O1, -O2, -O3

["?=Valery A.Khamenya=?koi8-r?Q?"]

Hi devels,

there are two issues concerning invoking 
optimizations:

1.

this document:

  http://llvm.cs.uiuc.edu/docs/GettingStarted.html

is very nice, it would be good though to add in a section

  An Example Using the LLVM Tool Chain

examples on optimization step.


2. 
If i am not wrong there is no tool, which integrates all
steps:

llvmgcc->opt->llc into something like llcc
(and llvmg++->opt->llc into something like ll++),
where options -O1, -O2, -O3 are available. For example,
`llcc -O3 ackerman.c' should make similar (but better!)
things as `gcc -O3 ackerman.c' does.

Anyway, it would be good to have a starting point
for those who'd like to try "fully LLVM-optimized"
C/C++ code. Indeed, the tool "opt" has quite big
set of options...

best regards,
---
Valery A.Khamenya