Fix issue around constant folding/bool (#2036)

* #include an absolute path didn't work - because paths were taken to always be relative.

* Fix bool handling in constant folding for generic parameters.

1 files changed, 7 insertions, 0 deletions

diff --git a/source/slang/slang-check-expr.cpp b/source/slang/slang-check-expr.cpp
index 6b1ab13cc..e8384e0ab 100644
--- a/source/slang/slang-check-expr.cpp
+++ b/source/slang/slang-check-expr.cpp
@@ -871,6 +871,13 @@ namespace Slang
             return getIntVal(intLitExpr);
         }
 
+        if (auto boolLitExpr = expr.as<BoolLiteralExpr>())
+        {
+            // If it's a boolean, we allow promotion to int.
+            const IntegerLiteralValue value = IntegerLiteralValue(boolLitExpr.getExpr()->value);
+            return m_astBuilder->create<ConstantIntVal>(value);
+        }
+
         // it is possible that we are referring to a generic value param
         if (auto declRefExpr = expr.as<DeclRefExpr>())
         {