llvm-project

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// RUN: %clang_cc1 -triple powerpc-ibm-aix-xcoff -fdump-record-layouts \
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// RUN:     -fsyntax-only -fxl-pragma-pack -x c %s | \
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// RUN:   FileCheck --check-prefixes=CHECK,32BIT %s
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// RUN: %clang_cc1 -triple powerpc-ibm-aix-xcoff -fdump-record-layouts \
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// RUN:     -fsyntax-only -fxl-pragma-pack -x c++ %s | \
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// RUN:   FileCheck --check-prefixes=CHECK,32BIT %s
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// RUN: %clang_cc1 -triple powerpc64-ibm-aix-xcoff -fdump-record-layouts \
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// RUN:     -fsyntax-only -fxl-pragma-pack -x c %s | \
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// RUN:   FileCheck --check-prefixes=CHECK,64BIT %s
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// RUN: %clang_cc1 -triple powerpc64-ibm-aix-xcoff -fdump-record-layouts \
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// RUN:     -fsyntax-only -fxl-pragma-pack -x c++ %s | \
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// RUN:   FileCheck --check-prefixes=CHECK,64BIT %s
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struct A {
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  int a1 : 30;
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  int a2 : 30;
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  int a3 : 4;
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};
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int a = sizeof(struct A);
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// CHECK:      *** Dumping AST Record Layout
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// CHECK-NEXT:      0 | struct A
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// CHECK-NEXT: 0:0-29 |   int a1
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// CHECK-NEXT: 4:0-29 |   int a2
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// CHECK-NEXT:  8:0-3 |   int a3
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// CHECK-NEXT:          sizeof=12, {{(dsize=12, )?}}align=4, preferredalign=4
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#pragma align(packed)
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struct AlignPacked {
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  int a1 : 30;
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  int a2 : 30;
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  int a3 : 4;
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};
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#pragma align(reset)
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int b = sizeof(struct AlignPacked);
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// CHECK:      *** Dumping AST Record Layout
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// CHECK-NEXT:      0 | struct AlignPacked
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// CHECK-NEXT: 0:0-29 |   int a1
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// CHECK-NEXT: 3:6-35 |   int a2
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// CHECK-NEXT:  7:4-7 |   int a3
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// CHECK-NEXT:          sizeof=8, {{(dsize=8, )?}}align=1, preferredalign=1
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#pragma pack(1)
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struct Pack1 {
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  int a1 : 30;
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  int a2 : 30;
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  int a3 : 4;
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};
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#pragma pack(pop)
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int c = sizeof(struct Pack1);
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// CHECK:      *** Dumping AST Record Layout
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// CHECK-NEXT:      0 | struct Pack1
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// CHECK-NEXT: 0:0-29 |   int a1
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// CHECK-NEXT: 3:6-35 |   int a2
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// CHECK-NEXT:  7:4-7 |   int a3
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// CHECK-NEXT:          sizeof=8, {{(dsize=8, )?}}align=1, preferredalign=1
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#pragma pack(2)
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struct Pack2 {
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  int a1 : 30;
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  int a2 : 30;
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  int a3 : 4;
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};
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#pragma pack(pop)
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int d = sizeof(struct Pack2);
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// CHECK:      *** Dumping AST Record Layout
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// CHECK-NEXT:      0 | struct Pack2
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// CHECK-NEXT: 0:0-29 |   int a1
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// CHECK-NEXT: 3:6-35 |   int a2
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// CHECK-NEXT:  7:4-7 |   int a3
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// CHECK-NEXT:          sizeof=8, {{(dsize=8, )?}}align=2, preferredalign=2
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//
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struct __attribute__((packed)) PackedAttr {
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  char f1;
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  int : 0;
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  short : 3;
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  char f4 : 2;
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};
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int e = sizeof(struct PackedAttr);
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// CHECK:      *** Dumping AST Record Layout
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// CHECK-NEXT:      0 | struct PackedAttr
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// CHECK-NEXT:      0 |   char f1
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// CHECK-NEXT:    4:- |   int
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// CHECK-NEXT:  4:0-2 |   short
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// CHECK-NEXT:  4:3-4 |   char f4
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// CHECK-NEXT:          sizeof=5, {{(dsize=5, )?}}align=1, preferredalign=1
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#pragma pack(2)
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struct __attribute__((packed)) PackedAttrAndPragma {
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  char f1;
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  long long : 0;
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};
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#pragma pack(pop)
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int f = sizeof(struct PackedAttrAndPragma);
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// CHECK:      *** Dumping AST Record Layout
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// CHECK-NEXT:      0 | struct PackedAttrAndPragma
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// CHECK-NEXT:      0 |   char f1
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// 32BIT-NEXT:    4:- |   long long
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// 32BIT-NEXT:          sizeof=4, {{(dsize=4, )?}}align=1, preferredalign=1
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// 64BIT-NEXT:    8:- |   long long
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// 64BIT-NEXT:          sizeof=8, {{(dsize=8, )?}}align=1, preferredalign=1
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