Cleanups for test cases:

- Allow a code-generation target of `NONE` in order to suppress ordinary output in test cases where we don't care about the actual output (just pass/fail result)

- Add explicit `location` layout qualifiers to intermediate vertex-to-fragment variables in GLSL test cases for rendering, to work around apparent Intel driver bugs.

1 files changed, 5 insertions, 0 deletions

diff --git a/source/slang/emit.cpp b/source/slang/emit.cpp
index 01b3e8cc2..155e1e39a 100644
--- a/source/slang/emit.cpp
+++ b/source/slang/emit.cpp
@@ -2159,6 +2159,11 @@ struct EmitVisitor
 
     void EmitStmt(RefPtr<StatementSyntaxNode> stmt)
     {
+        // TODO(tfoley): this shouldn't occur, but sometimes
+        // lowering will get confused by an empty function body...
+        if (!stmt)
+            return;
+
         // Try to ensure that debugging can find the right location
         advanceToSourceLocation(stmt->Position);