New tests for Packed structs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35686 91177308-0d34-0410-b5e6-96231b3b80d8

5 files changed, 123 insertions, 0 deletions

diff --git a/test/C++Frontend/2007-04-05-PackedBitFields-1.cpp b/test/C++Frontend/2007-04-05-PackedBitFields-1.cpp
new file mode 100644
index 0000000..4797baf
--- /dev/null
+++ b/test/C++Frontend/2007-04-05-PackedBitFields-1.cpp
@@ -0,0 +1,23 @@
+// RUN: %llvmgxx -S %s -o - | llvm-as -f -o /dev/null
+
+#ifdef PACKED
+#define P __attribute__((packed))
+#else
+#define P
+#endif
+
+struct P M_Packed { 
+  unsigned int l_Packed; 
+  unsigned short k_Packed : 6, 
+    i_Packed : 15,
+    j_Packed : 11;
+  
+}; 
+
+struct M_Packed sM_Packed; 
+
+int testM_Packed (void) { 
+  struct M_Packed x; 
+  return (x.i_Packed != 0);
+}
+      
diff --git a/test/C++Frontend/2007-04-05-PackedBitFieldsOverlap-2.cpp b/test/C++Frontend/2007-04-05-PackedBitFieldsOverlap-2.cpp
new file mode 100644
index 0000000..3ba5d7b
--- /dev/null
+++ b/test/C++Frontend/2007-04-05-PackedBitFieldsOverlap-2.cpp
@@ -0,0 +1,24 @@
+// RUN: %llvmgxx -S %s -o - | llvm-as -f -o /dev/null
+
+#ifdef PACKED
+#define P __attribute__((packed))
+#else
+#define P
+#endif
+
+struct P M_Packed { 
+  unsigned long sorted : 1;
+  unsigned long from_array : 1;
+  unsigned long mixed_encoding : 1;
+  unsigned long encoding : 8;
+  unsigned long count : 21;
+
+}; 
+
+struct M_Packed sM_Packed; 
+
+int testM_Packed (void) { 
+  struct M_Packed x; 
+  return (x.count != 0);
+}
+      
diff --git a/test/C++Frontend/2007-04-05-PackedBitFieldsOverlap.cpp b/test/C++Frontend/2007-04-05-PackedBitFieldsOverlap.cpp
new file mode 100644
index 0000000..ad272c9
--- /dev/null
+++ b/test/C++Frontend/2007-04-05-PackedBitFieldsOverlap.cpp
@@ -0,0 +1,24 @@
+// RUN: %llvmgxx -S %s -o - | llvm-as -f -o /dev/null
+
+
+#ifdef PACKED
+#define P __attribute__((packed))
+#else
+#define P
+#endif
+
+struct P M_Packed { 
+  unsigned int l_Packed; 
+  unsigned short k_Packed : 6, 
+    i_Packed : 15;
+  char c;
+  
+}; 
+
+struct M_Packed sM_Packed; 
+
+int testM_Packed (void) { 
+  struct M_Packed x; 
+  return (x.i_Packed != 0);
+}
+      
diff --git a/test/C++Frontend/2007-04-05-PackedBitFieldsSmall.cpp b/test/C++Frontend/2007-04-05-PackedBitFieldsSmall.cpp
new file mode 100644
index 0000000..e7517dd
--- /dev/null
+++ b/test/C++Frontend/2007-04-05-PackedBitFieldsSmall.cpp
@@ -0,0 +1,27 @@
+// RUN: %llvmgxx -S %s -o - | llvm-as -f -o /dev/null
+
+
+#ifdef PACKED
+// This is an example where size of Packed struct is smaller then 
+// the size of bit field type.
+#define P __attribute__((packed))
+#else
+#define P
+#endif
+
+struct P M_Packed { 
+  unsigned long long X:50;
+  unsigned Y:2;
+}; 
+
+struct M_Packed sM_Packed; 
+
+int testM_Packed (void) { 
+  struct M_Packed x; 
+  return (0 != x.Y);
+}
+      
+int testM_Packed2 (void) { 
+  struct M_Packed x; 
+  return (0 != x.X);
+}
diff --git a/test/C++Frontend/2007-04-05-StructPackedFieldUnpacked.cpp b/test/C++Frontend/2007-04-05-StructPackedFieldUnpacked.cpp
new file mode 100644
index 0000000..52e2471
--- /dev/null
+++ b/test/C++Frontend/2007-04-05-StructPackedFieldUnpacked.cpp
@@ -0,0 +1,25 @@
+// RUN: %llvmgxx -S %s -o - | llvm-as -f -o /dev/null
+
+#ifdef PACKED
+#define P __attribute__((packed))
+#else
+#define P
+#endif
+
+struct UnPacked {
+ 	int X;	
+	int Y;
+};
+
+struct P M_Packed { 
+  unsigned char A;
+  struct UnPacked B;
+}; 
+
+struct M_Packed sM_Packed; 
+
+int testM_Packed (void) { 
+  struct M_Packed x; 
+  return (x.B.Y != 0);
+}
+