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[INFER] Have DUP/DUP2 propagate correct SSA values. r=bhackett

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This commit is contained in:
Shu-yu Guo 2011-08-10 12:30:34 -07:00
parent 58b98f768d
commit 552db1b86a
1 changed files with 9 additions and 0 deletions
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9
js/src/jsanalyze.cpp
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@ -1597,6 +1597,15 @@ ScriptAnalysis::analyzeSSA(JSContext *cx)
stack[stackDepth - 1] = code->poppedValues[2];
break;
case JSOP_DUP:
stack[stackDepth - 1] = stack[stackDepth - 2] = code->poppedValues[0];
break;
case JSOP_DUP2:
stack[stackDepth - 1] = stack[stackDepth - 3] = code->poppedValues[0];
stack[stackDepth - 2] = stack[stackDepth - 4] = code->poppedValues[1];
break;
case JSOP_SWAP:
/* Swap is like pick 1. */
case JSOP_PICK: {