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-rw-r--r--frontends/ast/simplify.cc14
1 files changed, 14 insertions, 0 deletions
diff --git a/frontends/ast/simplify.cc b/frontends/ast/simplify.cc
index 28c9945ab..541fe1b18 100644
--- a/frontends/ast/simplify.cc
+++ b/frontends/ast/simplify.cc
@@ -1870,6 +1870,20 @@ skip_dynamic_range_lvalue_expansion:;
goto apply_newNode;
}
+ if (str == "\\$size")
+ {
+ if (children.size() != 1)
+ log_error("System function %s got %d arguments, expected 1 at %s:%d.\n",
+ RTLIL::unescape_id(str).c_str(), int(children.size()), filename.c_str(), linenum);
+
+ AstNode *buf = children[0]->clone();
+ buf->detectSignWidth(width_hint, sign_hint);
+ delete buf;
+
+ newNode = mkconst_int(width_hint, false);
+ goto apply_newNode;
+ }
+
if (str == "\\$ln" || str == "\\$log10" || str == "\\$exp" || str == "\\$sqrt" || str == "\\$pow" ||
str == "\\$floor" || str == "\\$ceil" || str == "\\$sin" || str == "\\$cos" || str == "\\$tan" ||
str == "\\$asin" || str == "\\$acos" || str == "\\$atan" || str == "\\$atan2" || str == "\\$hypot" ||