runtime/vm/dart.cc - Issue 10990028: Add code for CPU feature detection and use it to detect SSE3 and SSE 4.1.

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Unified Diff: runtime/vm/dart.cc

Issue 10990028: Add code for CPU feature detection and use it to detect SSE3 and SSE 4.1. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/

Patch Set: simplified, because there is no code in snapshots Created 8 years, 3 months ago

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Index: runtime/vm/dart.cc

===================================================================

--- runtime/vm/dart.cc (revision 12828)

+++ runtime/vm/dart.cc (working copy)

@@ -76,6 +76,11 @@

StubCode::InitOnce();

Scanner::InitOnce();

Symbols::InitOnce(vm_isolate_);

+ CPUFeatures::InitOnce();

+#if defined(TARGET_ARCH_IA32) || defined(TARGET_ARCH_X64)

+ // Dart VM requires at least SSE3.

+ if (!CPUFeatures::sse3_supported()) return false;

+#endif

PremarkingVisitor premarker(vm_isolate_);

vm_isolate_->heap()->IterateOldObjects(&premarker);

vm_isolate_->heap()->WriteProtect(true);

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