Issue perf. warning if SOA width narrower than gang size is used.

2012-03-19 11:28:16 -07:00
parent 75507d8b35
commit 13c42412d2
1 changed files with 5 additions and 0 deletions
--- a/decl.cpp
+++ b/decl.cpp
@@ -171,6 +171,11 @@ DeclSpecs::GetBaseType(SourcePos pos) const {
        }
        else
            retType = st->GetAsSOAType(soaWidth);
+
+        if (soaWidth < g->target.vectorWidth)
+            PerformanceWarning(pos, "soa<%d> width smaller than gang size %d "
+                               "currently leads to inefficient code to access "
+                               "soa types.", soaWidth, g->target.vectorWidth);
    }
    
    return retType;