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[Arm][AArch64] Stop explicitly optimising for speed in BUILD.gn

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Most of the important kernels are inline assembly anyway so optimising
for speed gets us nothing here.

Based on a comment here:
https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5588664/2/BUILD.gn#295

Change-Id: I8fa8ab37873dfee4eb26c5a3c1045dc10374e4f4
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5633654
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
This commit is contained in:
George Steed 2024-06-12 09:13:03 +01:00 committed by Frank Barchard
parent 367dd50755
commit 5adc2ce2cb
1 changed files with 0 additions and 30 deletions
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30
BUILD.gn
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@ -232,16 +232,6 @@ if (libyuv_use_neon) {
public_configs = [ ":libyuv_config" ]
# Always enable optimization for Release and NaCl builds (to workaround
# crbug.com/538243).
if (!is_debug) {
configs -= [ "//build/config/compiler:default_optimization" ]
# Enable optimize for speed (-O2) over size (-Os).
# TODO(fbarchard): Consider optimize_speed which is O3.
configs += [ "//build/config/compiler:optimize_max" ]
}
if (current_cpu == "arm64") {
cflags = [ "-march=armv8-a+dotprod+i8mm" ]
} else {
@ -261,16 +251,6 @@ if (libyuv_use_sve) {
public_configs = [ ":libyuv_config" ]
# Always enable optimization for Release and NaCl builds (to workaround
# crbug.com/538243).
if (!is_debug) {
configs -= [ "//build/config/compiler:default_optimization" ]
# Enable optimize for speed (-O2) over size (-Os).
# TODO(fbarchard): Consider optimize_speed which is O3.
configs += [ "//build/config/compiler:optimize_max" ]
}
# SVE2 is an Armv9-A feature.
cflags = [ "-march=armv9-a+sve2" ]
}
@ -286,16 +266,6 @@ if (libyuv_use_sme) {
public_configs = [ ":libyuv_config" ]
# Always enable optimization for Release and NaCl builds (to workaround
# crbug.com/538243).
if (!is_debug) {
configs -= [ "//build/config/compiler:default_optimization" ]
# Enable optimize for speed (-O2) over size (-Os).
# TODO(fbarchard): Consider optimize_speed which is O3.
configs += [ "//build/config/compiler:optimize_max" ]
}
# SME is an Armv9-A feature.
cflags = [ "-march=armv9-a+sme" ]
}