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| author | Ali Ijaz Sheikh <ofrobots@google.com> | 2016-01-20 09:45:45 -0800 |
|---|---|---|
| committer | Ali Ijaz Sheikh <ofrobots@google.com> | 2016-01-21 16:53:58 -0800 |
| commit | ef4170ea03a80b21b2d8a65ce432efaa370fe2fa (patch) | |
| tree | e382b1b38b729cd8155b56b441c3a563914854a3 /deps/v8/src/runtime/runtime-maths.cc | |
| parent | 5f6dfab832979999d2f806fc1a2f1c11a25b0f35 (diff) | |
| download | node-new-ef4170ea03a80b21b2d8a65ce432efaa370fe2fa.tar.gz | |
deps: upgrade to V8 4.8.271.17
Pick up V8 4.8 branch-head. This branch brings in @@isConcatSpreadable,
@@toPrimitive and ToLength ES6 changes. For full details see:
http://v8project.blogspot.de/2015/11/v8-release-48.html
https://github.com/v8/v8/commit/fa163e2
Ref: https://github.com/nodejs/node/pull/4399
PR-URL: https://github.com/nodejs/node/pull/4785
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
Diffstat (limited to 'deps/v8/src/runtime/runtime-maths.cc')
| -rw-r--r-- | deps/v8/src/runtime/runtime-maths.cc | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/deps/v8/src/runtime/runtime-maths.cc b/deps/v8/src/runtime/runtime-maths.cc index 504261679e..70c587d745 100644 --- a/deps/v8/src/runtime/runtime-maths.cc +++ b/deps/v8/src/runtime/runtime-maths.cc @@ -6,6 +6,7 @@ #include "src/arguments.h" #include "src/assembler.h" +#include "src/base/utils/random-number-generator.h" #include "src/codegen.h" #include "src/third_party/fdlibm/fdlibm.h" @@ -67,8 +68,8 @@ RUNTIME_FUNCTION(Runtime_RemPiO2) { CONVERT_DOUBLE_ARG_CHECKED(x, 0); CONVERT_ARG_CHECKED(JSTypedArray, result, 1); RUNTIME_ASSERT(result->byte_length() == Smi::FromInt(2 * sizeof(double))); - void* backing_store = JSArrayBuffer::cast(result->buffer())->backing_store(); - double* y = static_cast<double*>(backing_store); + FixedFloat64Array* array = FixedFloat64Array::cast(result->elements()); + double* y = static_cast<double*>(array->DataPtr()); return Smi::FromInt(fdlibm::rempio2(x, y)); } @@ -244,5 +245,20 @@ RUNTIME_FUNCTION(Runtime_IsMinusZero) { HeapNumber* number = HeapNumber::cast(obj); return isolate->heap()->ToBoolean(IsMinusZero(number->value())); } + + +RUNTIME_FUNCTION(Runtime_InitializeRNG) { + HandleScope scope(isolate); + DCHECK(args.length() == 0); + static const int kSize = 4; + Handle<FixedArray> array = isolate->factory()->NewFixedArray(kSize); + uint16_t seeds[kSize]; + do { + isolate->random_number_generator()->NextBytes(seeds, + kSize * sizeof(*seeds)); + } while (!(seeds[0] && seeds[1] && seeds[2] && seeds[3])); + for (int i = 0; i < kSize; i++) array->set(i, Smi::FromInt(seeds[i])); + return *isolate->factory()->NewJSArrayWithElements(array); +} } // namespace internal } // namespace v8 |