clang/test/CodeGen/struct-x86-darwin.c

   1 // RUN: %clang_cc1 %s -emit-llvm -o /dev/null -triple=i686-apple-darwin9 -fdump-record-layouts-simple | FileCheck %s
   2
   3 // Test struct layout for x86-darwin target
   4
   5 struct STest1 {int x; short y[4]; double z; } st1;
   6 struct STest2 {short a,b; int c,d; } st2;
   7 struct STest3 {char a; short b; int c; } st3;
   8
   9 // Bitfields
  10 struct STestB1 {char a; char b:2; } stb1;
  11 struct STestB2 {char a; char b:5; char c:4; } stb2;
  12 struct STestB3 {char a; char b:2; } stb3;
  13 struct STestB4 {char a; short b:2; char c; } stb4;
  14 struct STestB5 {char a; short b:10; char c; } stb5;
  15 struct STestB6 {int a:1; char b; int c:13; } stb6;
  16
  17 // Packed struct STestP1 {char a; short b; int c; } __attribute__((__packed__)) stp1;
  18
  19 // CHECK-LABEL: LLVMType:%struct.STest1 =
  20 // CHECK-SAME: type { i32, [4 x i16], double }
  21 // CHECK: BitFields:[
  22 // CHECK-NEXT: ]>
  23
  24 // CHECK-LABEL: LLVMType:%struct.STest2 =
  25 // CHECK-SAME: type { i16, i16, i32, i32 }
  26 // CHECK: BitFields:[
  27 // CHECK-NEXT: ]>
  28
  29 // CHECK-LABEL: LLVMType:%struct.STest3 =
  30 // CHECK-SAME: type { i8, i16, i32 }
  31 // CHECK: BitFields:[
  32 // CHECK-NEXT: ]>
  33
  34 // CHECK-LABEL: LLVMType:%struct.STestB1 =
  35 // CHECK-SAME: type { i8, i8 }
  36 // CHECK: BitFields:[
  37 // CHECK-NEXT: <CGBitFieldInfo Offset:0 Size:2 IsSigned:1 StorageSize:8 StorageOffset:1
  38 // CHECK-NEXT: ]>
  39
  40 // CHECK-LABEL: LLVMType:%struct.STestB2 =
  41 // CHECK-SAME: type <{ i8, i16 }>
  42 // CHECK: BitFields:[
  43 // CHECK-NEXT: <CGBitFieldInfo Offset:0 Size:5 IsSigned:1 StorageSize:16 StorageOffset:1
  44 // CHECK-NEXT: <CGBitFieldInfo Offset:8 Size:4 IsSigned:1 StorageSize:16 StorageOffset:1
  45 // CHECK-NEXT: ]>
  46
  47 // CHECK-LABEL: LLVMType:%struct.STestB3 =
  48 // CHECK-SAME: type { i8, i8 }
  49 // CHECK: BitFields:[
  50 // CHECK-NEXT: <CGBitFieldInfo Offset:0 Size:2 IsSigned:1 StorageSize:8 StorageOffset:1
  51 // CHECK-NEXT: ]>
  52
  53 // CHECK-LABEL: LLVMType:%struct.STestB4 =
  54 // CHECK-SAME: type { i8, i8, i8, i8 }
  55 // CHECK: BitFields:[
  56 // CHECK-NEXT: <CGBitFieldInfo Offset:0 Size:2 IsSigned:1 StorageSize:8 StorageOffset:1
  57 // CHECK-NEXT: ]>
  58
  59 // CHECK-LABEL: LLVMType:%struct.STestB5 =
  60 // CHECK-SAME: type { i8, i16, i8 }
  61 // CHECK: BitFields:[
  62 // CHECK-NEXT: <CGBitFieldInfo Offset:0 Size:10 IsSigned:1 StorageSize:16 StorageOffset:2
  63 // CHECK-NEXT: ]>
  64
  65 // CHECK-LABEL: LLVMType:%struct.STestB6 =
  66 // CHECK-SAME: type { i8, i8, i16 }
  67 // CHECK: BitFields:[
  68 // CHECK-NEXT: <CGBitFieldInfo Offset:0 Size:1 IsSigned:1 StorageSize:8 StorageOffset:0
  69 // CHECK-NEXT: <CGBitFieldInfo Offset:0 Size:13 IsSigned:1 StorageSize:16 StorageOffset:2
  70 // CHECK-NEXT: ]>