llvm-project

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// RUN: %clang_cc1 -triple powerpc-ibm-aix-xcoff -fdump-record-layouts \
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// RUN:     -fxl-pragma-pack -fsyntax-only %s | \
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// RUN:   FileCheck %s
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// RUN: %clang_cc1 -triple powerpc64-ibm-aix-xcoff -fdump-record-layouts \
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// RUN:     -fxl-pragma-pack -fsyntax-only %s | \
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// RUN:   FileCheck %s
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namespace test1 {
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#pragma align(natural)
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struct A {
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  int i1;
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};
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struct B {
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  double d1;
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};
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#pragma align(reset)
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struct C : A, B {
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  double d2;
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};
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int a = sizeof(C);
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// CHECK:      *** Dumping AST Record Layout
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// CHECK-NEXT:          0 | struct test1::A
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// CHECK-NEXT:          0 |   int i1
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// CHECK-NEXT:            | [sizeof=4, dsize=4, align=4, preferredalign=4,
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// CHECK-NEXT:            |  nvsize=4, nvalign=4, preferrednvalign=4]
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// CHECK:      *** Dumping AST Record Layout
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// CHECK-NEXT:          0 | struct test1::B
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// CHECK-NEXT:          0 |   double d1
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// CHECK-NEXT:            | [sizeof=8, dsize=8, align=4, preferredalign=8,
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// CHECK-NEXT:            |  nvsize=8, nvalign=4, preferrednvalign=8]
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// CHECK:      *** Dumping AST Record Layout
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// CHECK-NEXT:          0 | struct test1::C
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// CHECK-NEXT:          0 |   struct test1::A (base)
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// CHECK-NEXT:          0 |     int i1
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// CHECK-NEXT:          4 |   struct test1::B (base)
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// CHECK-NEXT:          4 |     double d1
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// CHECK-NEXT:         12 |   double d2
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// CHECK-NEXT:            | [sizeof=20, dsize=20, align=4, preferredalign=4,
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// CHECK-NEXT:            |  nvsize=20, nvalign=4, preferrednvalign=4]
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} // namespace test1
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namespace test2 {
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struct A {
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  int i1;
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  double d;
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};
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#pragma align(natural)
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struct B : A {
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  int i2;
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};
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#pragma align(reset)
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int b = sizeof(B);
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// CHECK:      *** Dumping AST Record Layout
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// CHECK-NEXT:          0 | struct test2::A
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// CHECK-NEXT:          0 |   int i1
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// CHECK-NEXT:          4 |   double d
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// CHECK-NEXT:            | [sizeof=12, dsize=12, align=4, preferredalign=4,
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// CHECK-NEXT:            |  nvsize=12, nvalign=4, preferrednvalign=4]
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// CHECK:      *** Dumping AST Record Layout
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// CHECK-NEXT:          0 | struct test2::B
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// CHECK-NEXT:          0 |   struct test2::A (base)
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// CHECK-NEXT:          0 |     int i1
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// CHECK-NEXT:          4 |     double d
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// CHECK-NEXT:         12 |   int i2
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// CHECK-NEXT:            | [sizeof=16, dsize=16, align=4, preferredalign=4,
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// CHECK-NEXT:            |  nvsize=16, nvalign=4, preferrednvalign=4]
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} // namespace test2
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namespace test3 {
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#pragma align(natural)
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struct A {
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  int i1;
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  double d;
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};
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#pragma align(reset)
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struct B {
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  struct A a;
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  int i2;
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};
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int c = sizeof(B);
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// CHECK:      *** Dumping AST Record Layout
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// CHECK-NEXT:          0 | struct test3::A
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// CHECK-NEXT:          0 |   int i1
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// CHECK-NEXT:          8 |   double d
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// CHECK-NEXT:            | [sizeof=16, dsize=16, align=4, preferredalign=8,
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// CHECK-NEXT:            |  nvsize=16, nvalign=4, preferrednvalign=8]
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// CHECK:      *** Dumping AST Record Layout
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// CHECK-NEXT:          0 | struct test3::B
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// CHECK-NEXT:          0 |   struct test3::A a
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// CHECK-NEXT:          0 |     int i1
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// CHECK-NEXT:          8 |     double d
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// CHECK-NEXT:         16 |   int i2
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// CHECK-NEXT:            | [sizeof=24, dsize=24, align=4, preferredalign=8,
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// CHECK-NEXT:            |  nvsize=24, nvalign=4, preferrednvalign=8]
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} // namespace test3
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namespace test4 {
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struct A {
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  int i1;
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  double d;
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};
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#pragma align(natural)
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struct B {
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  int i2;
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  struct A a;
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};
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#pragma align(reset)
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int d = sizeof(B);
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// CHECK:      *** Dumping AST Record Layout
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// CHECK-NEXT:          0 | struct test4::A
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// CHECK-NEXT:          0 |   int i1
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// CHECK-NEXT:          4 |   double d
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// CHECK-NEXT:            | [sizeof=12, dsize=12, align=4, preferredalign=4,
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// CHECK-NEXT:            |  nvsize=12, nvalign=4, preferrednvalign=4]
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// CHECK:      *** Dumping AST Record Layout
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// CHECK-NEXT:          0 | struct test4::B
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// CHECK-NEXT:          0 |   int i2
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// CHECK-NEXT:          4 |   struct test4::A a
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// CHECK-NEXT:          4 |     int i1
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// CHECK-NEXT:          8 |     double d
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// CHECK-NEXT:            | [sizeof=16, dsize=16, align=4, preferredalign=4,
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// CHECK-NEXT:            |  nvsize=16, nvalign=4, preferrednvalign=4]
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} // namespace test4
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