luke
/
iverilog
mirror of https://github.com/steveicarus/iverilog.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Don't try to shrink a valid r-vlaue width. 

In assignments, the expression width may be defined by the width of
operands, and not that of the l-value. Choose whichever is creater and
set (or pad) the expression to that width.
This commit is contained in:
Stephen Williams 2008-10-04 21:44:10 -07:00
parent cc9e3d1536
commit 5cfe47da2b
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
elaborate.cc
View File

@ -1954,9 +1954,11 @@ NetProc* PAssign::elaborate(Design*des, NetScope*scope) const
} else { } else {
unsigned wid = count_lval_width(lv); unsigned wid = count_lval_width(lv);
rv->set_width(wid); if (wid > rv->expr_width()) {
rv = pad_to_width(rv, wid); rv->set_width(wid);
assert(rv->expr_width() >= wid); rv = pad_to_width(rv, wid);
}
ivl_assert(*this, rv->expr_width() >= wid);
} }
NetAssign*cur = new NetAssign(lv, rv); NetAssign*cur = new NetAssign(lv, rv);