1 files changed, 37 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/SIMD/saturate.js b/js/src/jit-test/tests/SIMD/saturate.js
new file mode 100644
index 000000000..a98cf7ad7
--- /dev/null
+++ b/js/src/jit-test/tests/SIMD/saturate.js
@@ -0,0 +1,37 @@
+load(libdir + 'simd.js');
+
+setJitCompilerOption("ion.warmup.trigger", 50);
+
+const INT8_MIN = -128;
+const INT8_MAX = 127;
+const UINT8_MAX = 255;
+
+function sat8(x) {
+    if (x < INT8_MIN) return INT8_MIN;
+    if (x > INT8_MAX) return INT8_MAX;
+    return x;
+}
+
+function usat8(x) {
+    if (x < 0) return 0;
+    if (x > UINT8_MAX) return UINT8_MAX;
+    return x;
+}
+
+function f() {
+    var i1 = SIMD.Int8x16(1, 100, 3, 4);
+    var i2 = SIMD.Int8x16(4, 30, 2, 1);
+
+    var u1 = SIMD.Uint8x16(1, 2, 3, 4);
+    var u2 = SIMD.Uint8x16(4, 3, 2, 1);
+
+    for (var i = 0; i < 150; i++) {
+        assertEqX4(SIMD.Int8x16.addSaturate(i1, i2), binaryX((x, y) => sat8(x + y), i1, i2));
+        assertEqX4(SIMD.Int8x16.subSaturate(i1, i2), binaryX((x, y) => sat8(x - y), i1, i2));
+
+        assertEqX4(SIMD.Uint8x16.addSaturate(u1, u2), binaryX((x, y) => usat8(x + y), u1, u2));
+        assertEqX4(SIMD.Uint8x16.subSaturate(u1, u2), binaryX((x, y) => usat8(x - y), u1, u2));
+    }
+}
+
+f();