Add LSX optimations for loong64.
Change-Id: I9ff31b095d8e7b6bda6d76e4627800b2ef54ca84
Reviewed-on: https://skia-review.googlesource.com/c/skcms/+/877936
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
diff --git a/src/Transform_inl.h b/src/Transform_inl.h
index c2c10c7..ab9b94d 100644
--- a/src/Transform_inl.h
+++ b/src/Transform_inl.h
@@ -211,6 +211,9 @@
#if defined(USING_NEON)
SI F min_(F x, F y) { return (F)vminq_f32((float32x4_t)x, (float32x4_t)y); }
SI F max_(F x, F y) { return (F)vmaxq_f32((float32x4_t)x, (float32x4_t)y); }
+#elif defined(__loongarch_sx)
+ SI F min_(F x, F y) { return (F)__lsx_vfmin_s(x, y); }
+ SI F max_(F x, F y) { return (F)__lsx_vfmax_s(x, y); }
#else
SI F min_(F x, F y) { return if_then_else(x > y, y, x); }
SI F max_(F x, F y) { return if_then_else(x < y, y, x); }
@@ -231,6 +234,8 @@
return __builtin_ia32_roundps256(x, 0x01/*_MM_FROUND_FLOOR*/);
#elif defined(__SSE4_1__)
return _mm_floor_ps(x);
+#elif defined(__loongarch_sx)
+ return __lsx_vfrintrm_s((__m128)x);
#else
// Round trip through integers with a truncating cast.
F roundtrip = cast<F>(cast<I32>(x));
@@ -644,7 +649,7 @@
}
SI void sample_clut_16(const uint8_t* grid_16, I32 ix, F* r, F* g, F* b) {
-#if defined(__arm__)
+#if defined(__arm__) || defined(__loongarch_sx)
// This is up to 2x faster on 32-bit ARM than the #else-case fast path.
*r = F_from_U16_BE(gather_16(grid_16, 3*ix+0));
*g = F_from_U16_BE(gather_16(grid_16, 3*ix+1));
diff --git a/src/skcms_TransformBaseline.cc b/src/skcms_TransformBaseline.cc
index bfe1df6..706cc2c 100644
--- a/src/skcms_TransformBaseline.cc
+++ b/src/skcms_TransformBaseline.cc
@@ -27,6 +27,8 @@
// their features (after making runtime checks).
#include <smmintrin.h>
#endif
+#elif defined(__loongarch_sx)
+ #include <lsxintrin.h>
#endif
namespace skcms_private {
