Match pointer of compatible vection types.

// rdar://9208404


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129536 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 35 insertions, 0 deletions

diff --git a/lib/Sema/SemaOverload.cpp b/lib/Sema/SemaOverload.cpp
index ac2ba1a992..25e25a2139 100644
--- a/lib/Sema/SemaOverload.cpp
+++ b/lib/Sema/SemaOverload.cpp
@@ -1661,6 +1661,14 @@ bool Sema::IsPointerConversion(Expr *From, QualType FromType, QualType ToType,
     return true;
   }
 
+  if (FromPointeeType->isVectorType() && ToPointeeType->isVectorType() &&
+      Context.areCompatibleVectorTypes(FromPointeeType, ToPointeeType)) {
+    ConvertedType = BuildSimilarlyQualifiedPointerType(FromTypePtr,
+                                                       ToPointeeType,
+                                                       ToType, Context);
+    return true;
+  }
+  
   return false;
 }
 
diff --git a/test/SemaCXX/neon-vector-types.cpp b/test/SemaCXX/neon-vector-types.cpp
new file mode 100644
index 0000000000..aa82b11e8c
--- /dev/null
+++ b/test/SemaCXX/neon-vector-types.cpp
@@ -0,0 +1,27 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+// rdar://9208404
+
+typedef int MP4Err;
+typedef float Float32;
+typedef float float32_t;
+typedef __attribute__((neon_vector_type(4))) float32_t float32x4_t;
+typedef float vFloat __attribute__((__vector_size__(16)));
+typedef vFloat VFLOAT;
+typedef unsigned long UInt32;
+
+extern int bar (float32x4_t const *p);
+
+int foo (const Float32 *realBufPtr) {
+  float32x4_t const *vRealPtr = (VFLOAT *)&realBufPtr[0];
+  return bar(vRealPtr);
+}
+
+MP4Err autoCorrelation2nd_Neon(Float32 *alphar, Float32 *alphai,
+			    const Float32 *realBufPtr,
+			    const Float32 *imagBufPtr,
+			    const UInt32 len)
+{
+  float32x4_t const *vRealPtr = (VFLOAT *)&realBufPtr[0];
+  return 0;
+}
+