A question about disabling -gtoggle in bootstrap run
ERES at il.ibm.com
Fri Mar 4 15:46:28 UTC 2011
> I've always seen this turned on when bootstrapping FSF trunk with no
> configuration options.
You are correct, sorry for the confusion. I checked again and it is indeed
turned on also with --with-arch=armv7-a.
When configuring without --with-arch=armv7-a and using -mthumb flag
thumb-1 is been tested.
In this case cbranchne_decr1 instruction is recognized as do-loop and
the generation of the debug_insn for it interferer with SMS in stage
2 of the bootstrap (when -gtoggle is used) and thus the bootstrap fail.
When running with --with-arch=armv7-a the new do-loop support
for thumb-2 is used and the bootstrap passes as such debug_insn
is not created for the do-loop part.
> > Revital
> >> R.
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