Index: test/unittests/interpreter/bytecodes-unittest.cc |
diff --git a/test/unittests/interpreter/bytecodes-unittest.cc b/test/unittests/interpreter/bytecodes-unittest.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..355fce6bd7a62e68f8e668c6f07d2f4557b9b453 |
--- /dev/null |
+++ b/test/unittests/interpreter/bytecodes-unittest.cc |
@@ -0,0 +1,61 @@ |
+// Copyright 2014 the V8 project authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "src/v8.h" |
+ |
+#include "src/interpreter/bytecode-array-builder.h" |
+#include "test/unittests/test-utils.h" |
+ |
+namespace v8 { |
+namespace internal { |
+namespace interpreter { |
+ |
+TEST(OperandConversion, Registers) { |
+ for (int i = 0; i < 128; i++) { |
+ uint8_t operand_value = Bytecodes::RegisterIndexToOperand(i); |
+ uint8_t index = Bytecodes::RegisterIndexFromOperand(operand_value); |
+ CHECK_EQ(i, index); |
+ } |
+} |
+ |
+ |
+TEST(OperandConversion, Parameters) { |
+ int parameter_counts[] = {7, 13, 99}; |
rmcilroy
2015/09/02 11:42:42
nit - could you just use a std::vector here instea
oth
2015/09/02 14:02:20
Done. With uniform initialization, this is a fine
|
+#define COUNT_OF(x) static_cast<int>(sizeof(x) / sizeof(x[0])) |
+ for (int p = 0; p < COUNT_OF(parameter_counts); p++) { |
+ int parameter_count = parameter_counts[p]; |
+ for (int i = 0; i <= parameter_count; i++) { |
+ uint8_t operand_value = |
+ Bytecodes::ParameterIndexToOperand(i, parameter_count); |
+ uint8_t index = |
+ Bytecodes::ParameterIndexFromOperand(operand_value, parameter_count); |
+ CHECK_EQ(i, index); |
+ } |
+ } |
+#undef COUNT_OF |
+} |
+ |
+ |
+TEST(OperandConversion, RegistersParametersNoOverlap) { |
+ uint8_t operand_count[255] = {0}; |
+ |
+ for (int i = 0; i < 128; i++) { |
rmcilroy
2015/09/02 11:42:42
nit - /s/128/kMaxRegisterIndex
oth
2015/09/02 14:02:20
Done.
|
+ uint8_t register_operand = Bytecodes::RegisterIndexToOperand(i); |
+ operand_count[register_operand] += 1; |
+ CHECK_EQ(operand_count[register_operand], 1); |
+ } |
+ |
+ int parameter_count = Bytecodes::MaximumNumberOfParameters(); |
+ for (int i = 0; i <= parameter_count; i++) { |
+ uint8_t parameter_operand = |
+ Bytecodes::ParameterIndexToOperand(i, parameter_count); |
+ operand_count[parameter_operand] += 1; |
+ CHECK_EQ(operand_count[parameter_operand], 1); |
+ } |
+} |
+ |
+ |
+} // namespace interpreter |
+} // namespace internal |
+} // namespace v8 |