clang/test/CodeGen/builtins-bpf-preserve-field-info-4.c

   1 // REQUIRES: bpf-registered-target
   2 // RUN: %clang_cc1 -triple bpf -emit-llvm -debug-info-kind=limited -disable-llvm-passes %s -o - | FileCheck %s
   3
   4 #define _(x, y) (__builtin_preserve_enum_value((x), (y)))
   5
   6 enum AA {
   7   VAL0 = 0,
   8   VAL1 = 2,
   9   VAL2 = 0xffffffff80000000UL,
  10 };
  11 typedef enum { VAL00, VAL10 = -2, VAL11 = 0xffff8000, }  __BB;
  12
  13 unsigned unit1() {
  14   return _(*(enum AA *)VAL1, 0) + _(*(__BB *)VAL10, 1);
  15 }
  16
  17 unsigned unit2() {
  18   return _(*(enum AA *)VAL2, 0) + _(*(__BB *)VAL11, 1);
  19 }
  20
  21 unsigned unit3() {
  22   return _(*(enum AA *)VAL0, 0) + _(*(__BB *)VAL00, 1);
  23 }
  24
  25 // CHECK: @0 = private unnamed_addr constant [7 x i8] c"VAL1:2\00", align 1
  26 // CHECK: @1 = private unnamed_addr constant [9 x i8] c"VAL10:-2\00", align 1
  27 // CHECK: @2 = private unnamed_addr constant [17 x i8] c"VAL2:-2147483648\00", align 1
  28 // CHECK: @3 = private unnamed_addr constant [17 x i8] c"VAL11:4294934528\00", align 1
  29 // CHECK: @4 = private unnamed_addr constant [7 x i8] c"VAL0:0\00", align 1
  30 // CHECK: @5 = private unnamed_addr constant [8 x i8] c"VAL00:0\00", align 1
  31
  32 // CHECK: call i64 @llvm.bpf.preserve.enum.value(i32 0, ptr @0, i64 0), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[ENUM_AA:[0-9]+]]
  33 // CHECK: call i64 @llvm.bpf.preserve.enum.value(i32 1, ptr @1, i64 1), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[TYPEDEF_ENUM:[0-9]+]]
  34
  35 // CHECK: call i64 @llvm.bpf.preserve.enum.value(i32 2, ptr @2, i64 0), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[ENUM_AA]]
  36 // CHECK: call i64 @llvm.bpf.preserve.enum.value(i32 3, ptr @3, i64 1), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[TYPEDEF_ENUM]]
  37
  38 // CHECK: call i64 @llvm.bpf.preserve.enum.value(i32 4, ptr @4, i64 0), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[ENUM_AA]]
  39 // CHECK: call i64 @llvm.bpf.preserve.enum.value(i32 5, ptr @5, i64 1), !dbg !{{[0-9]+}}, !llvm.preserve.access.index ![[TYPEDEF_ENUM]]
  40
  41 // CHECK: ![[ENUM_AA]] = !DICompositeType(tag: DW_TAG_enumeration_type, name: "AA"
  42 // CHECK: ![[TYPEDEF_ENUM]] = !DIDerivedType(tag: DW_TAG_typedef, name: "__BB"