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Unified Diff: runtime/vm/intermediate_language.cc

Issue 16398008: Implements checks for 53-bit overflow for x64. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 7 years, 6 months ago
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Index: runtime/vm/intermediate_language.cc
===================================================================
--- runtime/vm/intermediate_language.cc (revision 23717)
+++ runtime/vm/intermediate_language.cc (working copy)
@@ -30,6 +30,7 @@
DECLARE_FLAG(int, max_polymorphic_checks);
DECLARE_FLAG(bool, trace_optimization);
DECLARE_FLAG(bool, trace_constant_propagation);
+DECLARE_FLAG(bool, throw_on_javascript_int_overflow);
Definition::Definition()
: range_(NULL),
@@ -968,6 +969,7 @@
bool BinarySmiOpInstr::CanDeoptimize() const {
+ if (FLAG_throw_on_javascript_int_overflow) return true;
switch (op_kind()) {
case Token::kBIT_AND:
case Token::kBIT_OR:
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