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Support side effects of form variable[index_function()]++.

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This commit is contained in:
Wilson Snyder
2025-01-08 19:37:20 -05:00
parent ff244c1d1f
commit 44f49669a3
9 changed files with 172 additions and 20 deletions
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src/V3Ast.cpp
+11 -7
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@@ -797,13 +797,7 @@ void AstNode::swapWith(AstNode* bp) {
AstNode* AstNode::cloneTreeIter(bool needPure) {
// private: Clone single node and children
if (VL_UNLIKELY(needPure && !isPure())) {
this->v3warn(SIDEEFFECT,
"Expression side effect may be mishandled\n"
<< this->warnMore()
<< "... Suggest use a temporary variable in place of this expression");
// this->v3fatalSrc("cloneTreePure debug backtrace"); // Comment in to debug where caused
}
if (needPure) purityCheck();
AstNode* const newp = this->clone();
if (this->m_op1p) newp->op1p(this->m_op1p->cloneTreeIterList(needPure));
if (this->m_op2p) newp->op2p(this->m_op2p->cloneTreeIterList(needPure));
@@ -850,6 +844,16 @@ AstNode* AstNode::cloneTree(bool cloneNextLink, bool needPure) {
return newp;
}
void AstNode::purityCheck() {
if (VL_UNLIKELY(!isPure())) {
this->v3warn(SIDEEFFECT,
"Expression side effect may be mishandled\n"
<< this->warnMore()
<< "... Suggest use a temporary variable in place of this expression");
// this->v3fatalSrc("cloneTreePure debug backtrace"); // Comment in to debug where caused
}
}
//======================================================================
// Delete