GlobalISel: Assert if MoreElements uses a non-vector type

arsenm · arsenm · commit 5aa1119537fe · 2020-09-30T10:36:00.000-04:00
diff --git a/llvm/lib/CodeGen/GlobalISel/LegalizerInfo.cpp b/llvm/lib/CodeGen/GlobalISel/LegalizerInfo.cpp
@@ -148,7 +148,8 @@ static bool mutationIsSane(const LegalizeRule &Rule,
         if (NewTy.getNumElements() <= OldElts)
           return false;
       }
-    }
+    } else if (Rule.getAction() == MoreElements)
+      return false;
 
     // Make sure the element type didn't change.
     return NewTy.getScalarType() == OldTy.getScalarType();

Original file line number	Diff line number	Diff line change
`@@ -148,7 +148,8 @@ static bool mutationIsSane(const LegalizeRule &Rule,`
`148`	`148`	`if (NewTy.getNumElements() <= OldElts)`
`149`	`149`	`return false;`
`150`	`150`	`}`
`151`		`- }`
	`151`	`+ } else if (Rule.getAction() == MoreElements)`
	`152`	`+ return false;`
`152`	`153`
`153`	`154`	`// Make sure the element type didn't change.`
`154`	`155`	`return NewTy.getScalarType() == OldTy.getScalarType();`