[Bug target/84626] powerpc toc register is reloaded unnecessarily
amodra at gmail dot com
gcc-bugzilla@gcc.gnu.org
Tue Feb 12 04:32:00 GMT 2019
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84626
Alan Modra <amodra at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
CC| |amodra at gmail dot com
Resolution|--- |INVALID
--- Comment #1 from Alan Modra <amodra at gmail dot com> ---
No, the r2 load can't be moved. The ppc64 ABIs say the restore of r2 must
occur immediately after the call. This is necessary for exception unwinding.
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