added test case for no fpfeatures

Author: ficol

clang/test/AST/ast-dump-fpfeatures.cpp

@@ -8,6 +8,17 @@
 // RUN: | sed -e "s/ <undeserialized declarations>//" -e "s/ imported//" \
 // RUN: | FileCheck --strict-whitespace %s
 
+// CHECK-LABEL: FunctionDecl {{.*}} no_fpfeatures_func_01 'vector2float (vector2double)'
+// CHECK:         CompoundStmt {{.*\>$}}
+// CHECK:           ReturnStmt
+// CHECK:             ConvertVectorExpr {{.*}} 'vector2float':'__attribute__((__vector_size__(2 * sizeof(float)))) float'{{$}}
+
+typedef double vector2double __attribute__((__vector_size__(16)));
+typedef float  vector2float  __attribute__((__vector_size__(8)));
+vector2float no_fpfeatures_func_01(vector2double x) {
+  return __builtin_convertvector(x, vector2float);
+}
+
 float func_01(float x);
 
 template <typename T>
@@ -255,8 +266,6 @@ float func_23(float x, float y) {
 // CHECK:           ReturnStmt
 // CHECK:             ConvertVectorExpr {{.*}} FPContractMode=2 ConstRoundingMode=towardzero
 
-typedef double vector2double __attribute__((__vector_size__(16)));
-typedef float  vector2float  __attribute__((__vector_size__(8)));
 #pragma STDC FENV_ROUND FE_TOWARDZERO
 vector2float func_24(vector2double x) {
   return __builtin_convertvector(x, vector2float);