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Internals: Use 'Bit' where mean 2-state type. No functional change.

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This commit is contained in:
Wilson Snyder
2020-11-29 08:23:36 -05:00
parent aa360052a8
commit a54ac52a35
13 changed files with 117 additions and 113 deletions
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src/V3Case.cpp
+5 -6
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@@ -318,7 +318,7 @@ private:
itemp = VN_CAST(itemp->nextp(), CaseItem)) {
if (!itemp->condsp()) {
// Default clause. Just make true, we'll optimize it away later
itemp->condsp(new AstConst(itemp->fileline(), AstConst::LogicTrue()));
itemp->condsp(new AstConst(itemp->fileline(), AstConst::BitTrue()));
hadDefault = true;
} else {
// Expressioned clause
@@ -336,7 +336,7 @@ private:
VL_DANGLING(iconstp);
// For simplicity, make expression that is not equal, and let later
// optimizations remove it
condp = new AstConst(itemp->fileline(), AstConst::LogicFalse());
condp = new AstConst(itemp->fileline(), AstConst::BitFalse());
} else if (AstInsideRange* irangep = VN_CAST(icondp, InsideRange)) {
// Similar logic in V3Width::visit(AstInside)
condp = irangep->newAndFromInside(cexprp, irangep->lhsp()->unlinkFrBack(),
@@ -375,9 +375,8 @@ private:
if (!hadDefault) {
// If there was no default, add a empty one, this greatly simplifies below code
// and constant propagation will just eliminate it for us later.
nodep->addItemsp(
new AstCaseItem(nodep->fileline(),
new AstConst(nodep->fileline(), AstConst::LogicTrue()), nullptr));
nodep->addItemsp(new AstCaseItem(
nodep->fileline(), new AstConst(nodep->fileline(), AstConst::BitTrue()), nullptr));
}
if (debug() >= 9) nodep->dumpTree(cout, " _comp_COND: ");
// Now build the IF statement tree
@@ -419,7 +418,7 @@ private:
VL_DANGLING(ifexprp);
if (depth == CASE_ENCODER_GROUP_DEPTH) { // End of group - can skip the condition
VL_DO_DANGLING(itemexprp->deleteTree(), itemexprp);
itemexprp = new AstConst(itemp->fileline(), AstConst::LogicTrue());
itemexprp = new AstConst(itemp->fileline(), AstConst::BitTrue());
}
AstIf* newp = new AstIf(itemp->fileline(), itemexprp, istmtsp, nullptr);
if (itemnextp) {