[PATCH 0/3] Power10 PCREL_OPT support

Michael Meissner meissner@linux.ibm.com
Tue Aug 25 04:09:47 GMT 2020

I forgot to mention that comparing the three tests of placement of the

Having the pass after sched2 generated the same number of PCREL_OPT relocations
as having the pass immediately after reload.

But having the pass just before sched2 resulted in some more PCREL_OPT
relocations.  Mostly the number of instructions was the same, but a few
benchmarks had a few more 4-byte instructions generated.  It looks like those
new PCREL_OPT relocations replaced a few places where we loaded the address,
but did not do a PCREL_OPT optimization.

Michael Meissner, IBM
IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA
email: meissner@linux.ibm.com, phone: +1 (978) 899-4797

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