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fix width detection of array querying function in case and case item expressions

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I also removed the unnecessary shadowing of `width_hint` and `sign_hint`
in the corresponding case in `simplify()`.
This commit is contained in:
Zachary Snow 2021-12-15 18:15:09 -07:00 • committed by Zachary Snow
parent 60c3ea367c
commit 7608985d2c
5 changed files with 50 additions and 2 deletions
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5
frontends/ast/genrtlil.cc
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@ -1087,6 +1087,11 @@ void AstNode::detectSignWidthWorker(int &width_hint, bool &sign_hint, bool *foun
}
break;
}
if (str == "\\$size" || str == "\\$bits" || str == "\\$high" || str == "\\$low" || str == "\\$left" || str == "\\$right") {
width_hint = 32;
sign_hint = true;
break;
}
if (current_scope.count(str))
{
// This width detection is needed for function calls which are

2
frontends/ast/simplify.cc
View file

@ -1389,8 +1389,6 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
if (const_fold && type == AST_CASE)
{
int width_hint;
bool sign_hint;
detectSignWidth(width_hint, sign_hint);
while (children[0]->simplify(const_fold, at_zero, in_lvalue, stage, width_hint, sign_hint, in_param)) { }
if (children[0]->type == AST_CONSTANT && children[0]->bits_only_01()) {