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| author | Zachary Snow <zach@zachjs.com> | 2021-07-29 12:35:22 -0400 |
|---|---|---|
| committer | Zachary Snow <zachary.j.snow@gmail.com> | 2021-07-29 20:55:31 -0400 |
| commit | 4fec3a85cd7d0fcd35f958bfc89090df25f7de3c (patch) | |
| tree | e78acff59083ecd64fac829b0d3d33548f76329e /frontends/ast/genrtlil.cc | |
| parent | 87ef1dd80536d65fde3833c7a504c9b5de5c3ea9 (diff) | |
| download | yosys-4fec3a85cd7d0fcd35f958bfc89090df25f7de3c.tar.gz yosys-4fec3a85cd7d0fcd35f958bfc89090df25f7de3c.tar.bz2 yosys-4fec3a85cd7d0fcd35f958bfc89090df25f7de3c.zip | |
genrtlil: add width detection for AST_PREFIX nodes
Diffstat (limited to 'frontends/ast/genrtlil.cc')
| -rw-r--r-- | frontends/ast/genrtlil.cc | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/frontends/ast/genrtlil.cc b/frontends/ast/genrtlil.cc index 90d5f1bba..45aab9d8e 100644 --- a/frontends/ast/genrtlil.cc +++ b/frontends/ast/genrtlil.cc @@ -993,6 +993,14 @@ void AstNode::detectSignWidthWorker(int &width_hint, bool &sign_hint, bool *foun break; } + case AST_PREFIX: + // Prefix nodes always resolve to identifiers in generate loops, so we + // can simply perform the resolution to determine the sign and width. + simplify(true, false, false, 1, -1, false, false); + log_assert(type == AST_IDENTIFIER); + detectSignWidthWorker(width_hint, sign_hint, found_real); + break; + case AST_FCALL: if (str == "\\$anyconst" || str == "\\$anyseq" || str == "\\$allconst" || str == "\\$allseq") { if (GetSize(children) == 1) { |