Move Half implementations to libcore to allow ART optimizations
Move Half FP16 implementations to libcore, to allow ART compiler to
optimize them with intrinsic implementations.
For example, on ARM64 with ARMv8.2 FP16 half registers and instructions:
- Half toFloat/toHalf can be implemented with FCVT;
- Half floor/ceil/round can be implmented with FRINT(pna);
- Half max/min can be implmented with FMIN/FMAX.
Such fast Half FP16 intrinsics can help accelerate ColorLong ARGB
encoding/decoding in Android framework.
Change-Id: I10b835fa6a3a33c9ec19df5de4949681c97b4667
diff --git a/non_openjdk_java_files.bp b/non_openjdk_java_files.bp
index 2cbb946..77c56e4 100644
--- a/non_openjdk_java_files.bp
+++ b/non_openjdk_java_files.bp
@@ -194,6 +194,7 @@
"luni/src/main/java/libcore/util/CoreLibraryDebug.java",
"luni/src/main/java/libcore/util/DebugInfo.java",
"luni/src/main/java/libcore/util/EmptyArray.java",
+ "luni/src/main/java/libcore/util/FP16.java",
"luni/src/main/java/libcore/util/HexEncoding.java",
"luni/src/main/java/libcore/util/NativeAllocationRegistry.java",
"luni/src/main/java/libcore/util/NonNull.java",