Adds subract, move wide immediate instructions to ARM64.

runtime/vm/assembler_arm64_test.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_ARM64)
 
 #include "vm/assembler.h"
 #include "vm/cpu.h"
 #include "vm/os.h"
 #include "vm/unit_test.h"
 #include "vm/virtual_memory.h"
 
 namespace dart {
 
 #define __ assembler->
 
 ASSEMBLER_TEST_GENERATE(Simple, assembler) {
   __ add(R0, ZR, Operand(ZR));
   __ add(R0, R0, Operand(42));
   __ ret();
 }
 
 
 ASSEMBLER_TEST_RUN(Simple, test) {
   typedef int (*SimpleCode)();
-  EXPECT_EQ(42, EXECUTE_TEST_CODE_INT32(SimpleCode, test->entry()));
+  EXPECT_EQ(42, EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
+}
+
+
+// Move wide immediate tests.
+// movz
+ASSEMBLER_TEST_GENERATE(Movz0, assembler) {
+  __ movz(R0, 42, 0);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(Movz0, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(42, EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Movz1, assembler) {
+  __ movz(R0, 42, 1);

[regis, 2014/04/03 16:57:38]

You verify below that movk leaves some bits unchanged.
You could verify here that movz sets all bits:

Instead of just
__ movz(R0, 42, 1);
you could have
__ movz(R0, 42, 0);  // Overwritten by next instruction.
__ movz(R0, 42, 1);

[zra, 2014/04/03 17:14:02]

Done.

+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(Movz1, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(42LL << 16, EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Movz2, assembler) {
+  __ movz(R0, 42, 2);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(Movz2, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(42LL << 32, EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Movz3, assembler) {
+  __ movz(R0, 42, 3);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(Movz3, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(42LL << 48, EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
+}
+
+
+// movn
+ASSEMBLER_TEST_GENERATE(Movn0, assembler) {
+  __ movn(R0, 42, 0);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(Movn0, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(~42LL, EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Movn1, assembler) {
+  __ movn(R0, 42, 1);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(Movn1, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(~(42LL << 16), EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Movn2, assembler) {
+  __ movn(R0, 42, 2);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(Movn2, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(~(42LL << 32), EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Movn3, assembler) {
+  __ movn(R0, 42, 3);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(Movn3, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(~(42LL << 48), EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
+}
+
+// movk
+ASSEMBLER_TEST_GENERATE(Movk0, assembler) {
+  __ movz(R0, 1, 3);
+  __ movk(R0, 42, 0);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(Movk0, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(
+      42LL | (1LL << 48), EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Movk1, assembler) {
+  __ movz(R0, 1, 0);
+  __ movk(R0, 42, 1);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(Movk1, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(
+      (42LL << 16) | 1, EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Movk2, assembler) {
+  __ movz(R0, 1, 0);
+  __ movk(R0, 42, 2);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(Movk2, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(
+      (42LL << 32) | 1, EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Movk3, assembler) {
+  __ movz(R0, 1, 0);
+  __ movk(R0, 42, 3);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(Movk3, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(
+      (42LL << 48) | 1, EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
+}
+
+
+// add tests.
+ASSEMBLER_TEST_GENERATE(AddReg, assembler) {
+  __ movz(R0, 20, 0);
+  __ movz(R1, 22, 0);
+  __ add(R0, R0, Operand(R1));
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(AddReg, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(42, EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(AddLSLReg, assembler) {
+  __ movz(R0, 20, 0);
+  __ movz(R1, 11, 0);
+  __ add(R0, R0, Operand(R1, LSL, 1));
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(AddLSLReg, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(42, EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(AddLSRReg, assembler) {
+  __ movz(R0, 20, 0);
+  __ movz(R1, 44, 0);
+  __ add(R0, R0, Operand(R1, LSR, 1));
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(AddLSRReg, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(42, EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(AddASRReg, assembler) {
+  __ movz(R0, 20, 0);
+  __ movz(R1, 44, 0);
+  __ add(R0, R0, Operand(R1, ASR, 1));
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(AddASRReg, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(42, EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(AddASRNegReg, assembler) {
+  __ movz(R0, 43, 0);
+  __ movn(R1, 0, 0);  // R1 <- -1
+  __ add(R1, ZR, Operand(R1, LSL, 3));  // R1 <- -8
+  __ add(R0, R0, Operand(R1, ASR, 3));  // R0 <- 43 + (-8 >> 3)
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(AddASRNegReg, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(42, EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
+}
+
+
+// TODO(zra): test other sign extension modes.
+ASSEMBLER_TEST_GENERATE(AddExtReg, assembler) {
+  __ movz(R0, 43, 0);
+  __ movz(R1, 0xffff, 0);
+  __ movk(R1, 0xffff, 1);  // R1 <- -1 (32-bit)
+  __ add(R0, R0, Operand(R1, SXTW, 0));  // R0 <- R0 + (sign extended R1)
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(AddExtReg, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(42, EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
 }
 
 }  // namespace dart
 
 #endif  // defined(TARGET_ARCH_ARM64)