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Bug 1342553, Bug 1343072, Bug 1344753 (details in the description)

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Bug 1342553 - Part 0.1: Use try-catch for IteratorClose in for-of
Bug 1343072 - Update HasLiveStackValueAtDepth to follow the change in
JSTRY_FOR_OF
Bug 1344753 - Update for-of stack depth in
ControlFlowGenerator::processWhileOrForInLoop

Issue #74
This commit is contained in:
janekptacijarabaci 2018-03-25 16:22:38 +02:00 • committed by Roy Tam
commit 444483bf81
11 changed files with 378 additions and 189 deletions
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14
js/src/jit/BaselineBailouts.cpp
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@ -509,16 +509,10 @@ HasLiveStackValueAtDepth(JSScript* script, jsbytecode* pc, uint32_t stackDepth)
break;
case JSTRY_FOR_OF:
// For-of loops have both the iterator and the result object on
// stack. The iterator is below the result object.
if (stackDepth == tn->stackDepth - 1)
return true;
break;
case JSTRY_ITERCLOSE:
// Code that need to call IteratorClose have the iterator on the
// stack.
if (stackDepth == tn->stackDepth)
// For-of loops have the iterator, the result object, and the value
// of the result object on stack. The iterator is below the result
// object and the value.
if (stackDepth == tn->stackDepth - 2)
return true;
break;