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[0/2] Add a couple new options to control loop prefetch pass

Message ID 1516628770-25036-1-git-send-email-luis.machado@linaro.org
Headers show
Series Add a couple new options to control loop prefetch pass | expand

Message

Luis Machado Jan. 22, 2018, 1:46 p.m. UTC 
The following couple patches add options to better control the loop prefetch
pass.

With the current settings the pass tends to be very aggressive, issuing a lot
of prefetch hints. Most of these don't translate to better performance. Some
of these issued hints may even cause more cache evictions.

Luis Machado (2):
  Introduce prefetch-minimum stride option
  Introduce prefetch-dynamic-strides option.

 gcc/config/aarch64/aarch64-protos.h |  6 ++++++
 gcc/config/aarch64/aarch64.c        | 24 +++++++++++++++++++++++-
 gcc/doc/invoke.texi                 | 25 +++++++++++++++++++++++++
 gcc/params.def                      | 18 ++++++++++++++++++
 gcc/params.h                        |  4 ++++
 gcc/tree-ssa-loop-prefetch.c        | 26 ++++++++++++++++++++++++++
 6 files changed, 102 insertions(+), 1 deletion(-)

-- 
2.7.4