servo: Merge #10916 - Use NEON build flag on ARM and AArch64 (from mm…

…atyas:useneon); r=aneeshusa

The NEON flag is already used when building for Android, this patch enables it on other ARM devices too.

Note that this patch just adds the build flag to the compilation, for actually enabling the SIMD code in Servo, we'll also need #10900 (but it's not a dependency).

Source-Repo: https://github.com/servo/servo
Source-Revision: a233d1e39b9549f7b24937ca4de9de0719bb890c

UltraBlame original commit: ed43c96e2aa45b5353169af6812740e8609c83ab

servo/python/servo/build_commands.py

@@ -1308,28 +1308,38 @@
 1
 )
 
-targets
-=
-[
-]
-
 if
-release
+target
+and
+android
 :
 
-opts
-+
-=
-[
+print
+(
 "
+Please
+specify
+either
 -
 -
-release
+target
+or
+-
+-
+android
+.
 "
-]
+)
+
+sys
+.
+exit
+(
+1
+)
 
 if
-target
+release
 :
 
 opts
@@ -1339,17 +1349,9 @@
 "
 -
 -
-target
+release
 "
-target
 ]
-
-targets
-.
-append
-(
-target
-)
 
 if
 jobs
@@ -1387,15 +1389,8 @@
 android
 :
 
-opts
-+
-=
-[
-"
--
--
 target
-"
+=
 self
 .
 config
@@ -1409,28 +1404,30 @@
 target
 "
 ]
-]
+
+if
+target
+:
 
-targets
-.
-append
-(
+opts
++
+=
+[
 "
-arm
 -
-linux
 -
-androideabi
+target
 "
-)
+target
+]
 
 self
 .
 ensure_bootstrapped
 (
-targets
+target
 =
-targets
+target
 )
 
 if
@@ -1518,19 +1515,42 @@
 (
 )
 
-if
-android
-:
-
 #
 Ensure
 Rust
 uses
 hard
 floats
+and
+SIMD
 on
-Android
+ARM
+devices
+
+if
+target
+:
 
+if
+target
+.
+startswith
+(
+'
+arm
+'
+)
+or
+target
+.
+startswith
+(
+'
+aarch64
+'
+)
+:
+
 env
 [
 '
@@ -1559,6 +1579,10 @@
 +
 neon
 "
+
+if
+android
+:
 
 #
 Build
@@ -2643,25 +2667,23 @@
 )
 :
 
-targets
+target
 =
-[
 "
 arm
 -
 linux
 -
 androideabi
 "
-]
 
 self
 .
 ensure_bootstrapped
 (
-targets
+target
 =
-targets
+target
 )
 
 opts

servo/python/servo/command_base.py

@@ -4377,10 +4377,9 @@
 ensure_bootstrapped
 (
 self
-targets
+target
 =
-[
-]
+None
 )
 :
 
@@ -4461,43 +4460,39 @@
 "
 )
 
-target_paths
+target_exists
+=
+True
+
+if
+target
+is
+not
+None
+:
+
+target_path
 =
-[
 path
 .
 join
 (
 base_target_path
-t
+target
 )
-for
-t
-in
-targets
-]
-
-all_targets_exist
+
+target_exists
 =
-all
-(
-[
 path
 .
 exists
 (
-p
-)
-for
-p
-in
-target_paths
-]
+target_path
 )
 
 if
-(
 not
+(
 self
 .
 config
@@ -4513,14 +4508,11 @@
 rust
 '
 ]
-and
-
+or
 (
-not
 rustc_binary_exists
-or
-not
-all_targets_exist
+and
+target_exists
 )
 )
 :
@@ -4557,7 +4549,13 @@
 context
 target
 =
-targets
+filter
+(
+None
+[
+target
+]
+)
 )
 
 cargo_path