ARM64/x86-64: Fix mterp fill-array-data-payload pointer calculation.
Fix the pointer calculation to sign-extend the offset
instead of zero-extending it, just like we do for the switch
table pointer calculation. Clean up comments for the switch.
Test: Additional test in 412-new-array.
Change-Id: Ibb1d2d3fcb109f59280aca08de21e42edc4ce66b
diff --git a/test/412-new-array/info.txt b/test/412-new-array/info.txt
index cb388b6..b5f834a 100644
--- a/test/412-new-array/info.txt
+++ b/test/412-new-array/info.txt
@@ -1 +1,3 @@
Simple tests for new-array, filled-new-array and fill-array-data.
+Regression test for the arm64 mterp miscalculating the fill-array-data-payload
+address, zero-extending a register instead of sign-extending.
diff --git a/test/412-new-array/smali/fill_array_data.smali b/test/412-new-array/smali/fill_array_data.smali
index 34776db..2b24e56 100644
--- a/test/412-new-array/smali/fill_array_data.smali
+++ b/test/412-new-array/smali/fill_array_data.smali
@@ -15,6 +15,21 @@
.end method
+.method public static intArrayFillInstructionAfterData([I)V
+ .registers 1
+ goto :FillInstruction
+
+:ArrayData
+ .array-data 4
+ 1 2 3 4 5
+ .end array-data
+
+:FillInstruction
+ fill-array-data v0, :ArrayData
+ return-void
+
+.end method
+
.method public static shortArray([S)V
.registers 1
diff --git a/test/412-new-array/src/Main.java b/test/412-new-array/src/Main.java
index b9c2a05..d95d2c5 100644
--- a/test/412-new-array/src/Main.java
+++ b/test/412-new-array/src/Main.java
@@ -259,6 +259,45 @@
}
{
+ Method m = c.getMethod("intArrayFillInstructionAfterData", int[].class);
+ int[] array = new int[7];
+ Object[] args = { array };
+ m.invoke(null, args);
+ assertEquals(7, array.length);
+ assertEquals(1, array[0]);
+ assertEquals(2, array[1]);
+ assertEquals(3, array[2]);
+ assertEquals(4, array[3]);
+ assertEquals(5, array[4]);
+ assertEquals(0, array[5]);
+ assertEquals(0, array[6]);
+
+ array = new int[2];
+ args[0] = array;
+ Throwable exception = null;
+ try {
+ m.invoke(null, args);
+ } catch (InvocationTargetException e) {
+ exception = e.getCause();
+ assertTrue(exception instanceof IndexOutOfBoundsException);
+ }
+ assertNotNull(exception);
+ exception = null;
+ // Test that nothing has been written to the array.
+ assertEquals(0, array[0]);
+ assertEquals(0, array[1]);
+
+ args[0] = null;
+ try {
+ m.invoke(null, args);
+ } catch (InvocationTargetException e) {
+ exception = e.getCause();
+ assertTrue(exception instanceof NullPointerException);
+ }
+ assertNotNull(exception);
+ }
+
+ {
Method m = c.getMethod("shortArray", short[].class);
short[] array = new short[7];
Object[] args = { array };