[optimizing compiler] Add CMP{L,G}_{FLOAT,DOUBLE}

- adds float comparison for arm, x86, x86_64 backends.
- adds ucomis{s,d} assembly to x86 and x86_64.

Change-Id: I232d2b6e9ecf373beb5cc63698dd97a658ff9c83

1 files changed, 227 insertions, 0 deletions

diff --git a/test/432-optimizing-cmp/src/Main.java b/test/432-optimizing-cmp/src/Main.java
new file mode 100644
index 0000000000..f45b94db57
--- /dev/null
+++ b/test/432-optimizing-cmp/src/Main.java
@@ -0,0 +1,227 @@
+/*
+ * 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.
+ */
+
+import java.lang.reflect.Method;
+
+public class Main {
+
+  public static void main(String[] args) throws Exception {
+    cmpLong();
+    cmpFloat();
+    cmpDouble();
+  }
+
+  private static void cmpLong() throws Exception {
+    expectLt(3.1F, 5.1F);
+    expectGt(5.1F, 3.1F);
+    expectLt(Long.MIN_VALUE, Long.MAX_VALUE);
+    expectGt(Long.MAX_VALUE, Long.MIN_VALUE);
+
+    expectEquals(0, smaliCmpLong(0L, 0L));
+    expectEquals(0, smaliCmpLong(1L, 1L));
+    expectEquals(-1, smaliCmpLong(1L, 2L));
+    expectEquals(1, smaliCmpLong(2L, 1L));
+    expectEquals(-1, smaliCmpLong(Long.MIN_VALUE, Long.MAX_VALUE));
+    expectEquals(1, smaliCmpLong(Long.MAX_VALUE, Long.MIN_VALUE));
+    expectEquals(0, smaliCmpLong(Long.MIN_VALUE, Long.MIN_VALUE));
+    expectEquals(0, smaliCmpLong(Long.MAX_VALUE, Long.MAX_VALUE));
+  }
+
+  private static void cmpFloat() throws Exception {
+    expectLt(3.1F, 5.1F);
+    expectGt(5.1F, 3.1F);
+    expectLt(Float.MIN_VALUE, Float.MAX_VALUE);
+    expectGt(Float.MAX_VALUE, Float.MIN_VALUE);
+    expectFalse(3.1F, Float.NaN);
+    expectFalse(Float.NaN, 3.1F);
+
+    expectEquals(0, smaliCmpGtFloat(0F, 0F));
+    expectEquals(0, smaliCmpGtFloat(1F, 1F));
+    expectEquals(-1, smaliCmpGtFloat(1.1F, 2.1F));
+    expectEquals(1, smaliCmpGtFloat(2.1F, 1.1F));
+    expectEquals(-1, smaliCmpGtFloat(Float.MIN_VALUE, Float.MAX_VALUE));
+    expectEquals(1, smaliCmpGtFloat(Float.MAX_VALUE, Float.MIN_VALUE));
+    expectEquals(0, smaliCmpGtFloat(Float.MIN_VALUE, Float.MIN_VALUE));
+    expectEquals(0, smaliCmpGtFloat(Float.MAX_VALUE, Float.MAX_VALUE));
+    expectEquals(1, smaliCmpGtFloat(5F, Float.NaN));
+    expectEquals(1, smaliCmpGtFloat(Float.NaN, 5F));
+
+    expectEquals(0, smaliCmpLtFloat(0F, 0F));
+    expectEquals(0, smaliCmpLtFloat(1F, 1F));
+    expectEquals(-1, smaliCmpLtFloat(1.1F, 2.1F));
+    expectEquals(1, smaliCmpLtFloat(2.1F, 1.1F));
+    expectEquals(-1, smaliCmpLtFloat(Float.MIN_VALUE, Float.MAX_VALUE));
+    expectEquals(1, smaliCmpLtFloat(Float.MAX_VALUE, Float.MIN_VALUE));
+    expectEquals(0, smaliCmpLtFloat(Float.MIN_VALUE, Float.MIN_VALUE));
+    expectEquals(0, smaliCmpLtFloat(Float.MAX_VALUE, Float.MAX_VALUE));
+    expectEquals(-1, smaliCmpLtFloat(5F, Float.NaN));
+    expectEquals(-1, smaliCmpLtFloat(Float.NaN, 5F));
+  }
+
+  private static void cmpDouble() throws Exception {
+    expectLt(3.1D, 5.1D);
+    expectGt(5.1D, 3.1D);
+    expectLt(Double.MIN_VALUE, Double.MAX_VALUE);
+    expectGt(Double.MAX_VALUE, Double.MIN_VALUE);
+    expectFalse(3.1D, Double.NaN);
+    expectFalse(Double.NaN, 3.1D);
+
+    expectEquals(0, smaliCmpGtDouble(0D, 0D));
+    expectEquals(0, smaliCmpGtDouble(1D, 1D));
+    expectEquals(-1, smaliCmpGtDouble(1.1D, 2.1D));
+    expectEquals(1, smaliCmpGtDouble(2.1D, 1.1D));
+    expectEquals(-1, smaliCmpGtDouble(Double.MIN_VALUE, Double.MAX_VALUE));
+    expectEquals(1, smaliCmpGtDouble(Double.MAX_VALUE, Double.MIN_VALUE));
+    expectEquals(0, smaliCmpGtDouble(Double.MIN_VALUE, Double.MIN_VALUE));
+    expectEquals(0, smaliCmpGtDouble(Double.MAX_VALUE, Double.MAX_VALUE));
+    expectEquals(1, smaliCmpGtDouble(5D, Double.NaN));
+    expectEquals(1, smaliCmpGtDouble(Double.NaN, 5D));
+
+    expectEquals(0, smaliCmpLtDouble(0D, 0D));
+    expectEquals(0, smaliCmpLtDouble(1D, 1D));
+    expectEquals(-1, smaliCmpLtDouble(1.1D, 2.1D));
+    expectEquals(1, smaliCmpLtDouble(2.1D, 1.1D));
+    expectEquals(-1, smaliCmpLtDouble(Double.MIN_VALUE, Double.MAX_VALUE));
+    expectEquals(1, smaliCmpLtDouble(Double.MAX_VALUE, Double.MIN_VALUE));
+    expectEquals(0, smaliCmpLtDouble(Double.MIN_VALUE, Double.MIN_VALUE));
+    expectEquals(0, smaliCmpLtDouble(Double.MAX_VALUE, Double.MAX_VALUE));
+    expectEquals(-1, smaliCmpLtDouble(5D, Double.NaN));
+    expectEquals(-1, smaliCmpLtDouble(Float.NaN, 5D));
+  }
+
+ static boolean $opt$lt(long a, long b) {
+    return a < b;
+  }
+
+  static boolean $opt$lt(float a, float b) {
+    return a < b;
+  }
+
+  static boolean $opt$lt(double a, double b) {
+    return a < b;
+  }
+
+  static boolean $opt$gt(long a, long b) {
+    return a > b;
+  }
+
+  static boolean $opt$gt(float a, float b) {
+    return a > b;
+  }
+
+  static boolean $opt$gt(double a, double b) {
+    return a > b;
+  }
+
+  // Wrappers around methods located in file cmp.smali.
+
+  private static int smaliCmpLong(long a, long b) throws Exception {
+    Class<?> c = Class.forName("TestCmp");
+    Method m = c.getMethod("$opt$CmpLong", long.class, long.class);
+    int result = (Integer)m.invoke(null, a, b);
+    return result;
+  }
+
+  private static int smaliCmpGtFloat(float a, float b) throws Exception {
+    Class<?> c = Class.forName("TestCmp");
+    Method m = c.getMethod("$opt$CmpGtFloat", float.class, float.class);
+    int result = (Integer)m.invoke(null, a, b);
+    return result;
+  }
+
+  private static int smaliCmpLtFloat(float a, float b) throws Exception {
+    Class<?> c = Class.forName("TestCmp");
+    Method m = c.getMethod("$opt$CmpLtFloat", float.class, float.class);
+    int result = (Integer)m.invoke(null, a, b);
+    return result;
+  }
+
+  private static int smaliCmpGtDouble(double a, double b) throws Exception {
+    Class<?> c = Class.forName("TestCmp");
+    Method m = c.getMethod("$opt$CmpGtDouble", double.class, double.class);
+    int result = (Integer)m.invoke(null, a, b);
+    return result;
+  }
+
+  private static int smaliCmpLtDouble(double a, double b) throws Exception {
+    Class<?> c = Class.forName("TestCmp");
+    Method m = c.getMethod("$opt$CmpLtDouble", double.class, double.class);
+    int result = (Integer)m.invoke(null, a, b);
+    return result;
+  }
+
+    public static void expectEquals(int expected, int result) {
+    if (expected != result) {
+      throw new Error("Expected: " + expected + ", found: " + result);
+    }
+  }
+
+  public static void expectLt(long a, long b) {
+    if (!$opt$lt(a, b)) {
+      throw new Error("Expected: " + a + " < " + b);
+    }
+  }
+
+  public static void expectGt(long a, long b) {
+    if (!$opt$gt(a, b)) {
+      throw new Error("Expected: " + a + " > " + b);
+    }
+  }
+
+  public static void expectLt(float a, float b) {
+    if (!$opt$lt(a, b)) {
+      throw new Error("Expected: " + a + " < " + b);
+    }
+  }
+
+  public static void expectGt(float a, float b) {
+    if (!$opt$gt(a, b)) {
+      throw new Error("Expected: " + a + " > " + b);
+    }
+  }
+
+  public static void expectFalse(float a, float b) {
+    if ($opt$lt(a, b)) {
+      throw new Error("Not expecting: " + a + " < " + b);
+    }
+    if ($opt$gt(a, b)) {
+      throw new Error("Not expecting: " + a + " > " + b);
+    }
+  }
+
+  public static void expectLt(double a, double b) {
+    if (!$opt$lt(a, b)) {
+      throw new Error("Expected: " + a + " < " + b);
+    }
+  }
+
+  public static void expectGt(double a, double b) {
+    if (!$opt$gt(a, b)) {
+      throw new Error("Expected: " + a + " > " + b);
+    }
+  }
+
+  public static void expectFalse(double a, double b) {
+    if ($opt$lt(a, b)) {
+      throw new Error("Not expecting: " + a + " < " + b);
+    }
+    if ($opt$gt(a, b)) {
+      throw new Error("Not expecting: " + a + " > " + b);
+    }
+  }
+
+}
+