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S/390: Increase register move costs for CC_REGS
authorRobin Dapp <rdapp@linux.ibm.com>
Mon, 5 Nov 2018 16:42:43 +0000 (16:42 +0000)
committerRobin Dapp <rdapp@gcc.gnu.org>
Mon, 5 Nov 2018 16:42:43 +0000 (16:42 +0000)
commitb14dfa94a88298dec7d1c8f6f3cc491912e5541a
treef82ed42bf1b5f1e76213ba1305e6330e3a585144tree | snapshot
parentd64d068c6ae391ccb1502dd3bed865fe57e9f4e4commit | diff
S/390: Increase register move costs for CC_REGS

This increases the move costs for moves involving the CC
register which saves us some instructions in SPEC CPU2006.

gcc/ChangeLog:

2018-11-05  Robin Dapp  <rdapp@linux.ibm.com>

* config/s390/s390.c (s390_register_move_cost): Increase costs for
        moves involving the CC reg.

From-SVN: r265814
gcc/ChangeLog diff | blob | history
gcc/config/s390/s390.c diff | blob | history
Domain: System / Toolchain;