1 files changed, 76 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/warn-padded-packed.cpp b/clang/test/CodeGenCXX/warn-padded-packed.cpp
new file mode 100644
index 0000000..4203bb3
--- /dev/null
+++ b/clang/test/CodeGenCXX/warn-padded-packed.cpp
@@ -0,0 +1,76 @@
+// RUN: %clang_cc1 -triple=x86_64-none-none -Wpadded -Wpacked -verify %s -emit-llvm-only
+
+struct S1 {
+  char c;
+  short s; // expected-warning {{padding struct 'S1' with 1 byte to align 's'}}
+  long l; // expected-warning {{padding struct 'S1' with 4 bytes to align 'l'}}
+};
+
+struct S2 { // expected-warning {{padding size of 'S2' with 3 bytes to alignment boundary}}
+  int i;
+  char c;
+};
+
+struct S3 {
+  char c;
+  int i;
+} __attribute__((packed));
+
+struct S4 {
+  int i; // expected-warning {{packed attribute is unnecessary for 'i'}}
+  char c;
+} __attribute__((packed));
+
+struct S5 {
+  char c;
+  union {
+    char c;
+    int i;
+  } u; // expected-warning {{padding struct 'S5' with 3 bytes to align 'u'}}
+};
+
+struct S6 { // expected-warning {{padding size of 'S6' with 30 bits to alignment boundary}}
+  int i : 2;
+};
+
+struct S7 { // expected-warning {{padding size of 'S7' with 7 bytes to alignment boundary}}
+  char c;
+  virtual void m();
+};
+
+struct B {
+  char c;
+};
+
+struct S8 : B {
+  int i; // expected-warning {{padding struct 'S8' with 3 bytes to align 'i'}}
+};
+
+struct S9 { // expected-warning {{packed attribute is unnecessary for 'S9'}}
+  int x; // expected-warning {{packed attribute is unnecessary for 'x'}}
+  int y; // expected-warning {{packed attribute is unnecessary for 'y'}}
+} __attribute__((packed));
+
+struct S10 { // expected-warning {{packed attribute is unnecessary for 'S10'}}
+  int x; // expected-warning {{packed attribute is unnecessary for 'x'}}
+  char a,b,c,d;
+} __attribute__((packed));
+
+
+struct S11 {
+  bool x;
+  char a,b,c,d;
+} __attribute__((packed));
+
+struct S12 {
+  bool b : 1;
+  char c; // expected-warning {{padding struct 'S12' with 7 bits to align 'c'}}
+};
+
+struct S13 { // expected-warning {{padding size of 'S13' with 6 bits to alignment boundary}}
+  char c;
+  bool b : 10; // expected-warning {{size of bit-field 'b' (10 bits) exceeds the size of its type}}
+};
+
+// The warnings are emitted when the layout of the structs is computed, so we have to use them.
+void f(S1*, S2*, S3*, S4*, S5*, S6*, S7*, S8*, S9*, S10*, S11*, S12*, S13*) { }