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Internals: Rework AstInitArray to have O(1) access. No functional change intended.

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This commit is contained in:
Wilson Snyder
2019-11-09 17:12:26 -05:00
parent 704f40b1a2
commit 4767083a72
7 changed files with 102 additions and 58 deletions
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src/V3Const.cpp
+4 -14
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@@ -1589,19 +1589,7 @@ private:
else if (m_selp && VN_IS(valuep, InitArray)) {
AstInitArray* initarp = VN_CAST(valuep, InitArray);
uint32_t bit = m_selp->bitConst();
int pos = 0;
AstNode* itemp = initarp->initsp();
for (; itemp; ++pos, itemp=itemp->nextp()) {
uint32_t index = initarp->posIndex(pos);
if (index == bit) break;
if (index > bit) {
if (initarp->defaultp()) {
itemp = initarp->defaultp();
} else {
initarp->v3fatalSrc("Not enough values in array initialization");
}
}
}
AstNode* itemp = initarp->getIndexDefaultedValuep(bit);
if (VN_IS(itemp, Const)) {
const V3Number& num = VN_CAST(itemp, Const)->num();
//UINFO(2,"constVisit "<<cvtToHex(valuep)<<" "<<num<<endl);
@@ -2122,7 +2110,9 @@ private:
}
}
virtual void visit(AstInitArray* nodep) {
// Constant if all children are constant
iterateChildren(nodep);
}
virtual void visit(AstInitItem* nodep) {
iterateChildren(nodep);
}
// These are converted by V3Param. Don't constify as we don't want the