arm64: use llvm's builtins for copysign() and copysignf().
Test: objdump
Change-Id: I26ab2c4745c5f64140cf781a9f42bce6fc79e1ef
diff --git a/libm/builtins.cpp b/libm/builtins.cpp
index 3b9228c..67fde0f 100644
--- a/libm/builtins.cpp
+++ b/libm/builtins.cpp
@@ -49,6 +49,9 @@
float ceilf(float x) { return __builtin_ceilf(x); }
double ceil(double x) { return __builtin_ceil(x); }
+double copysign(double x, double y) { return __builtin_copysign(x, y); }
+float copysignf(float x, float y) { return __builtin_copysignf(x, y); }
+
float floorf(float x) { return __builtin_floorf(x); }
double floor(double x) { return __builtin_floor(x); }