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Fix ordering of , msg1229.

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This commit is contained in:
Wilson Snyder
2013-09-07 16:43:43 -04:00
parent d6e8b0263c
commit bcba5075e8
5 changed files with 27 additions and 2 deletions
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src/V3Const.cpp
+2 -1
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@@ -815,9 +815,10 @@ private:
bool varNotReferenced(AstNode* nodep, AstVar* varp, int level=0) {
// Return true if varp never referenced under node.
// Return false if referenced, or tree too deep to be worth it
// Return false if referenced, or tree too deep to be worth it, or side effects
if (!nodep) return true;
if (level>2) return false;
if (nodep->isPure()) return false; // For example a $fgetc can't be reordered
if (nodep->castNodeVarRef() && nodep->castNodeVarRef()->varp()==varp) return false;
return (varNotReferenced (nodep->nextp(),varp,level+1)
&& varNotReferenced(nodep->op1p(),varp,level+1)