Add support for long-to-int in the optimizing compiler.
- Add support for the long-to-int Dex instruction in the
optimizing compiler.
- Generate x86, x86-64 and ARM (but not ARM64) code for
long-to-int HTypeConversion nodes.
- Add related tests to test/422-type-conversion.
- Also fix comments in test/415-optimizing-arith-neg and
in test/416-optimizing-arith-not.
Change-Id: I3084af30f2a495d178362ae1154dc7ceb7bf3a58
diff --git a/compiler/optimizing/codegen_test.cc b/compiler/optimizing/codegen_test.cc
index ecee443..de2253b 100644
--- a/compiler/optimizing/codegen_test.cc
+++ b/compiler/optimizing/codegen_test.cc
@@ -362,6 +362,23 @@
#undef NOT_LONG_TEST
+TEST(CodegenTest, IntToLongOfLongToInt) {
+ const int64_t input = INT64_C(4294967296); // 2^32
+ const uint16_t word0 = Low16Bits(Low32Bits(input)); // LSW.
+ const uint16_t word1 = High16Bits(Low32Bits(input));
+ const uint16_t word2 = Low16Bits(High32Bits(input));
+ const uint16_t word3 = High16Bits(High32Bits(input)); // MSW.
+ const uint16_t data[] = FIVE_REGISTERS_CODE_ITEM(
+ Instruction::CONST_WIDE | 0 << 8, word0, word1, word2, word3,
+ Instruction::CONST_WIDE | 2 << 8, 1, 0, 0, 0,
+ Instruction::ADD_LONG | 0, 0 << 8 | 2, // v0 <- 2^32 + 1
+ Instruction::LONG_TO_INT | 4 << 8 | 0 << 12,
+ Instruction::INT_TO_LONG | 2 << 8 | 4 << 12,
+ Instruction::RETURN_WIDE | 2 << 8);
+
+ TestCodeLong(data, true, 1);
+}
+
TEST(CodegenTest, ReturnAdd1) {
const uint16_t data[] = TWO_REGISTERS_CODE_ITEM(
Instruction::CONST_4 | 3 << 12 | 0,