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[FIRRTL][InferWidths] Tweak debug printing to show names and more bits. #5415

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Jun 16, 2023
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[FIRRTL][InferWidths] Tweak debug printing to show names and more bits. #5415

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7 changes: 5 additions & 2 deletions lib/Dialect/FIRRTL/Transforms/InferWidths.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -126,8 +126,8 @@ struct RootExpr : public ExprBase<RootExpr, Expr::Kind::Root> {
struct VarExpr : public ExprBase<VarExpr, Expr::Kind::Var> {
void print(llvm::raw_ostream &os) const {
// Hash the `this` pointer into something somewhat human readable. Since
// this is just for debug dumping, we wrap around at 4096 variables.
os << "var" << ((size_t)this / llvm::PowerOf2Ceil(sizeof(*this)) & 0xFFF);
// this is just for debug dumping, we wrap around at 65536 variables.
os << "var" << ((size_t)this / llvm::PowerOf2Ceil(sizeof(*this)) & 0xFFFF);
}

/// The constraint expression this variable is supposed to be greater than or
Expand Down Expand Up @@ -1979,6 +1979,9 @@ void InferenceMapping::setExpr(FieldRef fieldRef, Expr *expr) {
llvm::dbgs() << "Expr " << *expr << " for " << fieldRef.getValue();
if (fieldRef.getFieldID())
llvm::dbgs() << " '" << getFieldName(fieldRef).first << "'";
auto fieldName = getFieldName(fieldRef);
if (fieldName.second)
llvm::dbgs() << " (\"" << fieldName.first << "\")";
llvm::dbgs() << "\n";
});
opExprs[fieldRef] = expr;
Expand Down