diff options
Diffstat (limited to 'deps/v8/test/cctest/test-code-stubs.cc')
| -rw-r--r-- | deps/v8/test/cctest/test-code-stubs.cc | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/deps/v8/test/cctest/test-code-stubs.cc b/deps/v8/test/cctest/test-code-stubs.cc index c8c48ecc65..273f57ef0e 100644 --- a/deps/v8/test/cctest/test-code-stubs.cc +++ b/deps/v8/test/cctest/test-code-stubs.cc @@ -42,9 +42,18 @@ using namespace v8::internal; int STDCALL ConvertDToICVersion(double d) { +#if defined(V8_TARGET_BIG_ENDIAN) + const int kExponentIndex = 0; + const int kMantissaIndex = 1; +#elif defined(V8_TARGET_LITTLE_ENDIAN) + const int kExponentIndex = 1; + const int kMantissaIndex = 0; +#else +#error Unsupported endianness +#endif union { double d; uint32_t u[2]; } dbl; dbl.d = d; - uint32_t exponent_bits = dbl.u[1]; + uint32_t exponent_bits = dbl.u[kExponentIndex]; int32_t shifted_mask = static_cast<int32_t>(Double::kExponentMask >> 32); int32_t exponent = (((exponent_bits & shifted_mask) >> (Double::kPhysicalSignificandSize - 32)) - @@ -58,7 +67,8 @@ int STDCALL ConvertDToICVersion(double d) { static_cast<uint32_t>(Double::kPhysicalSignificandSize); if (unsigned_exponent >= max_exponent) { if ((exponent - Double::kPhysicalSignificandSize) < 32) { - result = dbl.u[0] << (exponent - Double::kPhysicalSignificandSize); + result = dbl.u[kMantissaIndex] + << (exponent - Double::kPhysicalSignificandSize); } } else { uint64_t big_result = |