Quick: Fix range check for intrinsic String.charAt() on x86.

Bug: 19125146
Change-Id: I274190a7a60cd2e29a854738ed1ec99a9e611969

1 files changed, 37 insertions, 1 deletions

diff --git a/test/082-inline-execute/src/Main.java b/test/082-inline-execute/src/Main.java
index a737ccd..5561a09 100644
--- a/test/082-inline-execute/src/Main.java
+++ b/test/082-inline-execute/src/Main.java
@@ -130,7 +130,11 @@ public class Main {
     Assert.assertEquals('N', testStr.charAt(0));
     Assert.assertEquals('o', testStr.charAt(1));
     Assert.assertEquals(' ', testStr.charAt(10));
-    Assert.assertEquals('e', testStr.charAt(testStr.length()-1));
+    Assert.assertEquals('e', testStr.charAt(14));  // 14 = testStr.length()-1 as a constant.
+    Assert.assertEquals('N', test_String_charAt_inner(testStr, 0));
+    Assert.assertEquals('o', test_String_charAt_inner(testStr, 1));
+    Assert.assertEquals(' ', test_String_charAt_inner(testStr, 10));
+    Assert.assertEquals('e', test_String_charAt_inner(testStr, testStr.length()-1));
 
     test_String_charAtExc();
     test_String_charAtExc2();
@@ -148,6 +152,33 @@ public class Main {
       Assert.fail();
     } catch (StringIndexOutOfBoundsException expected) {
     }
+    try {
+      testStr.charAt(15);  // 15 = "Now is the time".length()
+      Assert.fail();
+    } catch (StringIndexOutOfBoundsException expected) {
+    }
+    try {
+      test_String_charAt_inner(testStr, -1);
+      Assert.fail();
+    } catch (StringIndexOutOfBoundsException expected) {
+    }
+    try {
+      test_String_charAt_inner(testStr, 80);
+      Assert.fail();
+    } catch (StringIndexOutOfBoundsException expected) {
+    }
+    try {
+      test_String_charAt_inner(testStr, 15);  // 15 = "Now is the time".length()
+      Assert.fail();
+    } catch (StringIndexOutOfBoundsException expected) {
+    }
+
+    String strEmpty = "";
+    try {
+      strEmpty.charAt(0);
+      Assert.fail();
+    } catch (StringIndexOutOfBoundsException expected) {
+    }
 
     String strNull = null;
     try {
@@ -157,6 +188,11 @@ public class Main {
     }
   }
 
+  private static char test_String_charAt_inner(String s, int index) {
+    // Using non-constant index here (assuming that this method wasn't inlined).
+    return s.charAt(index);
+  }
+
   private static void test_String_charAtExc2() {
     try {
       test_String_charAtExc3();