Endian: Allow special bitfield union fields to cover the whole storage

This requires a different computation of the mask since we can't shift
out of the storage type.

Change-Id: Ife85ca3e0c5ca47f06988a397cc2f8a7e28ad0fe
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 11 insertions, 1 deletions

diff --git a/tests/auto/corelib/global/qtendian/tst_qtendian.cpp b/tests/auto/corelib/global/qtendian/tst_qtendian.cpp
index 7f13559067..e688768b74 100644
--- a/tests/auto/corelib/global/qtendian/tst_qtendian.cpp
+++ b/tests/auto/corelib/global/qtendian/tst_qtendian.cpp
@@ -377,8 +377,9 @@ void testBitfieldUnion()
     using upper = Member<21, 11, uint>;
     using lower = Member<10, 11, uint>;
     using bottom = Member<0, 10, int>;
+    using all = Member<0, 32, uint>;
 
-    using UnionType = Union<upper, lower, bottom>;
+    using UnionType = Union<upper, lower, bottom, all>;
     UnionType u;
 
     u.template set<upper>(200);
@@ -402,6 +403,15 @@ void testBitfieldUnion()
     UnionType u2(QSpecialIntegerBitfieldZero);
     QCOMPARE(u2.data(), 0U);
 
+    u2.template set<all>(std::numeric_limits<uint>::max());
+    QCOMPARE(u2.template get<all>(), std::numeric_limits<uint>::max());
+
+    u2.template set<all>(453);
+    QCOMPARE(u2.template get<all>(), 453U);
+
+    u2.template set<all>(0);
+    QCOMPARE(u2.template get<all>(), 0U);
+
     UnionType u3(42U);
     QCOMPARE(u3.data(), 42U);