Always set the value to 0 for bit<0>/int<0> constants

vlstill · vlstill · commit 08069e451d2b · 2025-05-05T16:37:04.000+02:00
Signed-off-by: Vladimír Štill &lt;vladimir.still@altera.com&gt;
diff --git a/ir/expression.cpp b/ir/expression.cpp
@@ -94,6 +94,7 @@ void IR::Constant::handleOverflow(bool noWarning) {
             P4::warning(ErrorType::WARN_OVERFLOW,
                         "%1%: zero-width integer cannot have non-zero value", this);
         }
+        value = 0;
     } else if (tb->isSigned) {
         big_int max = (one << (width - 1)) - 1;
         big_int min = -(one << (width - 1));

Original file line number	Diff line number	Diff line change
`@@ -94,6 +94,7 @@ void IR::Constant::handleOverflow(bool noWarning) {`
`94`	`94`	`P4::warning(ErrorType::WARN_OVERFLOW,`
`95`	`95`	`"%1%: zero-width integer cannot have non-zero value", this);`
`96`	`96`	`}`
	`97`	`+ value = 0;`
`97`	`98`	`} else if (tb->isSigned) {`
`98`	`99`	`big_int max = (one << (width - 1)) - 1;`
`99`	`100`	`big_int min = -(one << (width - 1));`