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| author | Wilco Dijkstra <wdijkstr@arm.com> | 2019-11-19 14:20:12 +0000 |
|---|---|---|
| committer | Wilco Dijkstra <wilco@gcc.gnu.org> | 2019-11-19 14:20:12 +0000 |
| commit | 24851701582dd5d3cfb39d946c949289756b7553 (patch) | |
| tree | cf831d70c50c06f72d72675238fc8dd16d297389 /gcc | |
| parent | 89842a5104770789045e4a89fd9e0eaa31abf6a8 (diff) | |
| download | gcc-24851701582dd5d3cfb39d946c949289756b7553.zip gcc-24851701582dd5d3cfb39d946c949289756b7553.tar.gz gcc-24851701582dd5d3cfb39d946c949289756b7553.tar.bz2 | |
[Arm] Set Armv7-A tune to Cortex-A53
By default Armv7-A tunes for Cortex-A8. This is an ancient core
today and the settings are no longer useful for newer cores. So
switch to Cortex-A53 tuning since it works well across a wide range
of modern cores.
On SPECINT2006 the performance gain is 0.7% compared to Cortex-A8 tuning,
and codesize reduces by 0.2%.
gcc/
* config/arm/arm-cpus.in (armv7): Set tune to Cortex-A53.
(armv7-a): Likewise.
(armv7ve): Likewise.
From-SVN: r278447
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/arm/arm-cpus.in | 6 |
2 files changed, 9 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 99d6a51..db83c91 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2019-11-19 Wilco Dijkstra <wdijkstr@arm.com> + + * config/arm/arm-cpus.in (armv7): Set tune to Cortex-A53. + (armv7-a): Likewise. + (armv7ve): Likewise. + 2019-11-19 Richard Biener <rguenther@suse.de> PR tree-optimization/92581 diff --git a/gcc/config/arm/arm-cpus.in b/gcc/config/arm/arm-cpus.in index 50379a0..44e6cc6 100644 --- a/gcc/config/arm/arm-cpus.in +++ b/gcc/config/arm/arm-cpus.in @@ -415,7 +415,7 @@ begin arch armv6s-m end arch armv6s-m begin arch armv7 - tune for cortex-a8 + tune for cortex-a53 tune flags CO_PROC base 7 isa ARMv7 @@ -426,7 +426,7 @@ begin arch armv7 end arch armv7 begin arch armv7-a - tune for cortex-a8 + tune for cortex-a53 tune flags CO_PROC base 7A profile A @@ -451,7 +451,7 @@ begin arch armv7-a end arch armv7-a begin arch armv7ve - tune for cortex-a8 + tune for cortex-a53 tune flags CO_PROC base 7A profile A |