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

Issue 7565005: Version 3.5.3 (Closed) Base URL: https://v8.googlecode.com/svn/trunk
Patch Set: Created 9 years, 5 months ago
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Index: src/x64/lithium-x64.cc
diff --git a/src/x64/lithium-x64.cc b/src/x64/lithium-x64.cc
index 5b502a80c91b1ca40226c17d08e2d0786897fe1f..7f4490f6defa9e573d34420af985827f30403748 100644
--- a/src/x64/lithium-x64.cc
+++ b/src/x64/lithium-x64.cc
@@ -1036,7 +1036,11 @@ LInstruction* LChunkBuilder::DoBranch(HBranch* instr) {
: instr->SecondSuccessor();
return new LGoto(successor->block_id());
}
- return new LBranch(UseRegisterAtStart(v));
+ LInstruction* branch = new LBranch(UseRegister(v));
+ // When we handle all cases, we never deopt, so we don't need to assign the
+ // environment then.
+ bool all_cases_handled = instr->expected_input_types().IsAll();
+ return all_cases_handled ? branch : AssignEnvironment(branch);
}
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