src/x64/deoptimizer-x64.cc - Issue 21014003: Optionally use 31-bits SMI value for 64-bit system

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Unified Diff: src/x64/deoptimizer-x64.cc

Issue 21014003: Optionally use 31-bits SMI value for 64-bit system (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge

Patch Set: Created 7 years, 5 months ago

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Index: src/x64/deoptimizer-x64.cc

diff --git a/src/x64/deoptimizer-x64.cc b/src/x64/deoptimizer-x64.cc

index b45e9663e2a10c074178e0802aca949c3164f207..46ec918b6d7538bf986052a1cd6b24499bd03d6d 100644

--- a/src/x64/deoptimizer-x64.cc

+++ b/src/x64/deoptimizer-x64.cc

@@ -83,7 +83,11 @@ void Deoptimizer::PatchCodeForDeoptimization(Isolate* isolate, Code* code) {

static const byte kJnsInstruction = 0x79;

+#if !V8_USE_31_BITS_SMI_VALUE

static const byte kJnsOffset = 0x1d;

+#else

+static const byte kJnsOffset = 0x19;

+#endif

static const byte kCallInstruction = 0xe8;

static const byte kNopByteOne = 0x66;

static const byte kNopByteTwo = 0x90;