egcs-971127: results on powerpc-ibm-aix4.2.1.0

[Jeffrey A Law]

  In message < v03110700b0a7a03e9ac0@[192.149.90.247] >you write:
  > Hmm, this also solves a sig11 while compiling glibc-2.1 for me
Good.

  > but it didn't change the test behaviour on powerpc-unknown-linux-gnulibc1.
It shouldn't.  The change I forwarded to you should not effect ppc-linux
at all.


  > The
  > strange thing is, after getting the sig11 I started applying Geoff's
  > remaining patches step by step and the following one also prohibited the
  > sig11. Is Michaels rework really buggy?
Yes.  It had a real bug.

  > BTW, while looking at *.s files generated by -save-temps I noticed that I
  > can't switch on -mmultiple, it is always directly followed by
  > -mno-multiple. I tried with various combinations of -mpowerpc,
  > -mcpu=powerpc, etc. and was never able to get rid of the -mno-multiple.
  > According to the docs this should be possible. Is there any other option
  > that forces -mno-multiple?
The way the ppc handles this is a little odd -- basically I don't think you
can depend on the info in the .s file to correctly tell you the right thing
for -mmultiple.

  > * PIC code breaks when nested functions are used; for instance, the
  > following compiled with 'cc1 -O2 -fpic -Wall'.  (The -Wall gives a nice
  > visible crash, rather than quietly generating invalid code.)
I rewrote this fix to be more correct.  You shouldn't need Geoff's fix
for this problem anymore.  My version has been in egcs snapshots for
several weeks.

jeff