[optimizing compiler] Add division for floats and doubles

backends: x86, x86_64, arm.

Also:
- ordered instructions based on their name.
- add missing kNoOutputOverlap to add/sub/mul.

Change-Id: Ie47cde3b15ac74e7a1660c67a2eed1d7871f0ad0

1 files changed, 137 insertions, 0 deletions

diff --git a/test/417-optimizing-arith-div/src/Main.java b/test/417-optimizing-arith-div/src/Main.java
new file mode 100644
index 0000000..535cafb
--- /dev/null
+++ b/test/417-optimizing-arith-div/src/Main.java
@@ -0,0 +1,137 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Note that $opt$ is a marker for the optimizing compiler to ensure
+// it does compile the method.
+public class Main {
+
+  public static void expectEquals(float expected, float result) {
+    if (expected != result) {
+      throw new Error("Expected: " + expected + ", found: " + result);
+    }
+  }
+
+  public static void expectEquals(double expected, double result) {
+    if (expected != result) {
+      throw new Error("Expected: " + expected + ", found: " + result);
+    }
+  }
+
+  public static void expectApproxEquals(float a, float b) {
+    float maxDelta = 0.00001F;
+    boolean aproxEquals = (a > b) ? ((a - b) < maxDelta) : ((b - a) < maxDelta);
+    if (!aproxEquals) {
+      throw new Error("Expected: " + a + ", found: " + b
+          + ", with delta: " + maxDelta + " " + (a - b));
+    }
+  }
+
+  public static void expectApproxEquals(double a, double b) {
+    double maxDelta = 0.00001D;
+    boolean aproxEquals = (a > b) ? ((a - b) < maxDelta) : ((b - a) < maxDelta);
+    if (!aproxEquals) {
+      throw new Error("Expected: " + a + ", found: "
+          + b + ", with delta: " + maxDelta + " " + (a - b));
+    }
+  }
+
+  public static void expectNaN(float a) {
+    if (a == a) {
+      throw new Error("Expected NaN: " + a);
+    }
+  }
+
+  public static void expectNaN(double a) {
+    if (a == a) {
+      throw new Error("Expected NaN: " + a);
+    }
+  }
+
+  public static void main(String[] args) {
+    div();
+  }
+
+  public static void div() {
+    divFloat();
+    divDouble();
+  }
+
+  private static void divFloat() {
+    expectApproxEquals(1.6666666F, $opt$Div(5F, 3F));
+    expectApproxEquals(0F, $opt$Div(0F, 3F));
+    expectApproxEquals(-0.3333333F, $opt$Div(1F, -3F));
+    expectApproxEquals(4F, $opt$Div(-12F, -3F));
+    expectApproxEquals(0.5, $opt$Div(0.1F, 0.2F));
+    expectApproxEquals(-2.5F, $opt$Div(-0.5F, 0.2F));
+
+    expectEquals(0F, $opt$Div(0F, Float.POSITIVE_INFINITY));
+    expectEquals(0F, $opt$Div(11F, Float.POSITIVE_INFINITY));
+    expectEquals(0F, $opt$Div(0F, Float.NEGATIVE_INFINITY));
+    expectEquals(0F, $opt$Div(11F, Float.NEGATIVE_INFINITY));
+
+    expectNaN($opt$Div(0F, 0F));
+    expectNaN($opt$Div(Float.NaN, 11F));
+    expectNaN($opt$Div(-11F, Float.NaN));
+    expectNaN($opt$Div(Float.NEGATIVE_INFINITY, Float.NEGATIVE_INFINITY));
+    expectNaN($opt$Div(Float.NEGATIVE_INFINITY, Float.POSITIVE_INFINITY));
+    expectNaN($opt$Div(Float.POSITIVE_INFINITY, Float.NEGATIVE_INFINITY));
+    expectNaN($opt$Div(Float.POSITIVE_INFINITY, Float.POSITIVE_INFINITY));
+    expectNaN($opt$Div(Float.NaN, Float.NEGATIVE_INFINITY));
+    expectNaN($opt$Div(Float.POSITIVE_INFINITY, Float.NaN));
+
+    expectEquals(Float.POSITIVE_INFINITY, $opt$Div(3F, 0F));
+    expectEquals(Float.NEGATIVE_INFINITY, $opt$Div(-3F, 0F));
+    expectEquals(Float.POSITIVE_INFINITY, $opt$Div(Float.MAX_VALUE, Float.MIN_VALUE));
+    expectEquals(Float.NEGATIVE_INFINITY, $opt$Div(-Float.MAX_VALUE, Float.MIN_VALUE));
+  }
+
+  private static void divDouble() {
+    expectApproxEquals(1.6666666D, $opt$Div(5D, 3D));
+    expectApproxEquals(0D, $opt$Div(0D, 3D));
+    expectApproxEquals(-0.3333333D, $opt$Div(1D, -3D));
+    expectApproxEquals(4D, $opt$Div(-12D, -3D));
+    expectApproxEquals(0.5, $opt$Div(0.1D, 0.2D));
+    expectApproxEquals(-2.5D, $opt$Div(-0.5D, 0.2D));
+
+    expectEquals(0D, $opt$Div(0D, Float.POSITIVE_INFINITY));
+    expectEquals(0D, $opt$Div(11D, Float.POSITIVE_INFINITY));
+    expectEquals(0D, $opt$Div(0D, Float.NEGATIVE_INFINITY));
+    expectEquals(0D, $opt$Div(11D, Float.NEGATIVE_INFINITY));
+
+    expectNaN($opt$Div(0D, 0D));
+    expectNaN($opt$Div(Float.NaN, 11D));
+    expectNaN($opt$Div(-11D, Float.NaN));
+    expectNaN($opt$Div(Float.NEGATIVE_INFINITY, Float.NEGATIVE_INFINITY));
+    expectNaN($opt$Div(Float.NEGATIVE_INFINITY, Float.POSITIVE_INFINITY));
+    expectNaN($opt$Div(Float.POSITIVE_INFINITY, Float.NEGATIVE_INFINITY));
+    expectNaN($opt$Div(Float.POSITIVE_INFINITY, Float.POSITIVE_INFINITY));
+    expectNaN($opt$Div(Float.NaN, Float.NEGATIVE_INFINITY));
+    expectNaN($opt$Div(Float.POSITIVE_INFINITY, Float.NaN));
+
+    expectEquals(Float.POSITIVE_INFINITY, $opt$Div(3D, 0D));
+    expectEquals(Float.NEGATIVE_INFINITY, $opt$Div(-3D, 0D));
+    expectEquals(Float.POSITIVE_INFINITY, $opt$Div(Float.MAX_VALUE, Float.MIN_VALUE));
+    expectEquals(Float.NEGATIVE_INFINITY, $opt$Div(-Float.MAX_VALUE, Float.MIN_VALUE));
+  }
+
+  static float $opt$Div(float a, float b) {
+    return a / b;
+  }
+
+  static double $opt$Div(double a, double b) {
+    return a / b;
+  }
+}