Linux/ia64 failed to bootstrap

[Rainer Orth]

Rainer Orth <ro@techfak.uni-bielefeld.de> writes:

> "H. J. Lu" <hjl@lucon.org> writes:
> 
> > Today's mainline failed to bootstrap on Linux/ia64. Stage1 compiler
> > is pretty much broken. All generated .c files are different. Has
> > anyone else seen it?
> 
> I'm getting a bootstrap failure on alpha-dec-osf5.1: insn-attrtab.c is
> different between stages.

Richard Sandiford pointed out in private mail that this patch

2003-06-18  Eric Botcazou  <ebotcazou@libertysurf.fr>

	PR optimization/11210
	* fold-const (decode_field_reference): Strip only NOPs
	that don't affect the sign.

	http://gcc.gnu.org/ml/gcc-patches/2003-06/msg02094.html

is likely the culprit.  Reverting it allowed me to continue bootstrap on
alpha-dec-osf5.1: the insn-attrtab.c differences between stages vanished.

	Rainer

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Rainer Orth, Faculty of Technology, Bielefeld University