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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-12-03 14:57:18 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-12-16 14:37:45 +0100 |
| commit | c63badebfebacdba827ab1cc1d420fc81bd8d818 (patch) | |
| tree | 6bc09659dd889c7d85b09e7d1283cfecf08859a8 /Documentation/volatile-considered-harmful.txt | |
| parent | 1c182a628075af7431edb8155601740867b5ae51 (diff) | |
s390: optimize control register update
It is less expensive to update control registers 0 and 2 with two
individual stctg/lctlg instructions as with a single one that spans
control register 0, 1 and 2.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'Documentation/volatile-considered-harmful.txt')
0 files changed, 0 insertions, 0 deletions