diff options
Diffstat (limited to 'deps/v8/test/cctest/test-assembler-arm.cc')
| -rw-r--r-- | deps/v8/test/cctest/test-assembler-arm.cc | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/deps/v8/test/cctest/test-assembler-arm.cc b/deps/v8/test/cctest/test-assembler-arm.cc index 7f3404cf2..3058c6f86 100644 --- a/deps/v8/test/cctest/test-assembler-arm.cc +++ b/deps/v8/test/cctest/test-assembler-arm.cc @@ -280,4 +280,40 @@ TEST(4) { } } + +TEST(5) { + // Test the ARMv7 bitfield instructions. + InitializeVM(); + v8::HandleScope scope; + + Assembler assm(NULL, 0); + + if (CpuFeatures::IsSupported(ARMv7)) { + CpuFeatures::Scope scope(ARMv7); + // On entry, r0 = 0xAAAAAAAA = 0b10..10101010. + __ ubfx(r0, r0, 1, 12); // 0b00..010101010101 = 0x555 + __ sbfx(r0, r0, 0, 5); // 0b11..111111110101 = -11 + __ bfc(r0, 1, 3); // 0b11..111111110001 = -15 + __ mov(r1, Operand(7)); + __ bfi(r0, r1, 3, 3); // 0b11..111111111001 = -7 + __ mov(pc, Operand(lr)); + + CodeDesc desc; + assm.GetCode(&desc); + Object* code = Heap::CreateCode(desc, + NULL, + Code::ComputeFlags(Code::STUB), + Handle<Object>(Heap::undefined_value())); + CHECK(code->IsCode()); +#ifdef DEBUG + Code::cast(code)->Print(); +#endif + F1 f = FUNCTION_CAST<F1>(Code::cast(code)->entry()); + int res = reinterpret_cast<int>( + CALL_GENERATED_CODE(f, 0xAAAAAAAA, 0, 0, 0, 0)); + ::printf("f() = %d\n", res); + CHECK_EQ(-7, res); + } +} + #undef __ |