[Sema] Use the canonical type in function isVector

This fixes an assertion in Sema::CreateBuiltinBinOp that fails when one
of the vector operand's element type is a typedef of __fp16.

rdar://problem/55983556

1 files changed, 1 insertions, 1 deletions

diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
index 3be8af1dd9e..63a189a102f 100644
--- a/clang/lib/Sema/SemaExpr.cpp
+++ b/clang/lib/Sema/SemaExpr.cpp
@@ -8155,7 +8155,7 @@ Sema::CheckAssignmentConstraints(SourceLocation Loc,
 /// type ElementType.
 static bool isVector(QualType QT, QualType ElementType) {
   if (const VectorType *VT = QT->getAs<VectorType>())
-    return VT->getElementType() == ElementType;
+    return VT->getElementType().getCanonicalType() == ElementType;
   return false;
 }