clang/test/CodeGen/sanitize-metadata-nosanitize.c

   1 // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --check-attributes --check-globals --version 2
   2 // RUN: %clang_cc1 -O -fexperimental-sanitize-metadata=covered -fexperimental-sanitize-metadata=atomics -fexperimental-sanitize-metadata=uar -triple x86_64-gnu-linux -x c -S -emit-llvm %s -o - | FileCheck %s --check-prefixes=CHECK
   3
   4 //.
   5 // CHECK: @__start_sanmd_covered = extern_weak hidden global ptr
   6 // CHECK: @__stop_sanmd_covered = extern_weak hidden global ptr
   7 // CHECK: @__start_sanmd_atomics = extern_weak hidden global ptr
   8 // CHECK: @__stop_sanmd_atomics = extern_weak hidden global ptr
   9 // CHECK: @llvm.used = appending global [4 x ptr] [ptr @__sanitizer_metadata_covered.module_ctor, ptr @__sanitizer_metadata_covered.module_dtor, ptr @__sanitizer_metadata_atomics.module_ctor, ptr @__sanitizer_metadata_atomics.module_dtor], section "llvm.metadata"
  10 // CHECK: @llvm.global_ctors = appending global [2 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 2, ptr @__sanitizer_metadata_covered.module_ctor, ptr @__sanitizer_metadata_covered.module_ctor }, { i32, ptr, ptr } { i32 2, ptr @__sanitizer_metadata_atomics.module_ctor, ptr @__sanitizer_metadata_atomics.module_ctor }]
  11 // CHECK: @llvm.global_dtors = appending global [2 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 2, ptr @__sanitizer_metadata_covered.module_dtor, ptr @__sanitizer_metadata_covered.module_dtor }, { i32, ptr, ptr } { i32 2, ptr @__sanitizer_metadata_atomics.module_dtor, ptr @__sanitizer_metadata_atomics.module_dtor }]
  12 //.
  13 // CHECK: Function Attrs: mustprogress nofree noinline norecurse nosync nounwind willreturn memory(write, argmem: none, inaccessiblemem: none)
  14 // CHECK-LABEL: define dso_local void @escape
  15 // CHECK-SAME: (ptr noundef [[P:%.*]]) local_unnamed_addr #[[ATTR0:[0-9]+]] !pcsections !2 {
  16 // CHECK-NEXT:  entry:
  17 // CHECK-NEXT:    ret void
  18 //
  19 __attribute__((noinline, not_tail_called)) void escape(const volatile void *p) {
  20   static const volatile void *sink;
  21   sink = p;
  22 }
  23
  24 // CHECK: Function Attrs: mustprogress nofree norecurse nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: none)
  25 // CHECK-LABEL: define dso_local i32 @normal_function
  26 // CHECK-SAME: (ptr noundef [[X:%.*]], ptr nocapture noundef readonly [[Y:%.*]]) local_unnamed_addr #[[ATTR1:[0-9]+]] !pcsections !4 {
  27 // CHECK-NEXT:  entry:
  28 // CHECK-NEXT:    [[X_ADDR:%.*]] = alloca ptr, align 8
  29 // CHECK-NEXT:    store ptr [[X]], ptr [[X_ADDR]], align 8, !tbaa [[TBAA6:![0-9]+]]
  30 // CHECK-NEXT:    store atomic i32 1, ptr [[X]] monotonic, align 4, !pcsections !10
  31 // CHECK-NEXT:    notail call void @escape(ptr noundef nonnull [[X_ADDR]])
  32 // CHECK-NEXT:    [[TMP0:%.*]] = load i32, ptr [[Y]], align 4, !tbaa [[TBAA11:![0-9]+]]
  33 // CHECK-NEXT:    ret i32 [[TMP0]]
  34 //
  35 int normal_function(int *x, int *y) {
  36   __atomic_store_n(x, 1, __ATOMIC_RELAXED);
  37   escape(&x);
  38   return *y;
  39 }
  40
  41 // CHECK: Function Attrs: disable_sanitizer_instrumentation mustprogress nofree norecurse nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: none)
  42 // CHECK-LABEL: define dso_local i32 @test_disable_sanitize_instrumentation
  43 // CHECK-SAME: (ptr noundef [[X:%.*]], ptr nocapture noundef readonly [[Y:%.*]]) local_unnamed_addr #[[ATTR2:[0-9]+]] {
  44 // CHECK-NEXT:  entry:
  45 // CHECK-NEXT:    [[X_ADDR:%.*]] = alloca ptr, align 8
  46 // CHECK-NEXT:    store ptr [[X]], ptr [[X_ADDR]], align 8, !tbaa [[TBAA6]]
  47 // CHECK-NEXT:    store atomic i32 1, ptr [[X]] monotonic, align 4
  48 // CHECK-NEXT:    notail call void @escape(ptr noundef nonnull [[X_ADDR]])
  49 // CHECK-NEXT:    [[TMP0:%.*]] = load i32, ptr [[Y]], align 4, !tbaa [[TBAA11]]
  50 // CHECK-NEXT:    ret i32 [[TMP0]]
  51 //
  52 __attribute__((disable_sanitizer_instrumentation)) int test_disable_sanitize_instrumentation(int *x, int *y) {
  53   __atomic_store_n(x, 1, __ATOMIC_RELAXED);
  54   escape(&x);
  55   return *y;
  56 }
  57
  58 // CHECK: Function Attrs: mustprogress nofree norecurse nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: none)
  59 // CHECK-LABEL: define dso_local i32 @test_no_sanitize_thread
  60 // CHECK-SAME: (ptr noundef [[X:%.*]], ptr nocapture noundef readonly [[Y:%.*]]) local_unnamed_addr #[[ATTR3:[0-9]+]] !pcsections !13 {
  61 // CHECK-NEXT:  entry:
  62 // CHECK-NEXT:    [[X_ADDR:%.*]] = alloca ptr, align 8
  63 // CHECK-NEXT:    store ptr [[X]], ptr [[X_ADDR]], align 8, !tbaa [[TBAA6]]
  64 // CHECK-NEXT:    store atomic i32 1, ptr [[X]] monotonic, align 4, !pcsections !10
  65 // CHECK-NEXT:    notail call void @escape(ptr noundef nonnull [[X_ADDR]])
  66 // CHECK-NEXT:    [[TMP0:%.*]] = load i32, ptr [[Y]], align 4, !tbaa [[TBAA11]]
  67 // CHECK-NEXT:    ret i32 [[TMP0]]
  68 //
  69 __attribute__((no_sanitize("thread"))) int test_no_sanitize_thread(int *x, int *y) {
  70   __atomic_store_n(x, 1, __ATOMIC_RELAXED);
  71   escape(&x);
  72   return *y;
  73 }
  74
  75 // CHECK: Function Attrs: mustprogress nofree norecurse nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: none)
  76 // CHECK-LABEL: define dso_local i32 @test_no_sanitize_all
  77 // CHECK-SAME: (ptr noundef [[X:%.*]], ptr nocapture noundef readonly [[Y:%.*]]) local_unnamed_addr #[[ATTR3]] !pcsections !13 {
  78 // CHECK-NEXT:  entry:
  79 // CHECK-NEXT:    [[X_ADDR:%.*]] = alloca ptr, align 8
  80 // CHECK-NEXT:    store ptr [[X]], ptr [[X_ADDR]], align 8, !tbaa [[TBAA6]]
  81 // CHECK-NEXT:    store atomic i32 1, ptr [[X]] monotonic, align 4, !pcsections !10
  82 // CHECK-NEXT:    notail call void @escape(ptr noundef nonnull [[X_ADDR]])
  83 // CHECK-NEXT:    [[TMP0:%.*]] = load i32, ptr [[Y]], align 4, !tbaa [[TBAA11]]
  84 // CHECK-NEXT:    ret i32 [[TMP0]]
  85 //
  86 __attribute__((no_sanitize("all"))) int test_no_sanitize_all(int *x, int *y) {
  87   __atomic_store_n(x, 1, __ATOMIC_RELAXED);
  88   escape(&x);
  89   return *y;
  90 }
  91 //.
  92 // CHECK: attributes #0 = { mustprogress nofree noinline norecurse nosync nounwind willreturn memory(write, argmem: none, inaccessiblemem: none) "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-features"="+cx8,+mmx,+sse,+sse2,+x87" }
  93 // CHECK: attributes #1 = { mustprogress nofree norecurse nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: none) "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-features"="+cx8,+mmx,+sse,+sse2,+x87" }
  94 // CHECK: attributes #2 = { disable_sanitizer_instrumentation mustprogress nofree norecurse nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: none) "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-features"="+cx8,+mmx,+sse,+sse2,+x87" }
  95 // CHECK: attributes #3 = { mustprogress nofree norecurse nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: none) "min-legal-vector-width"="0" "no-trapping-math"="true" "no_sanitize_thread" "stack-protector-buffer-size"="8" "target-features"="+cx8,+mmx,+sse,+sse2,+x87" }
  96 // CHECK: attributes #4 = { nounwind }
  97 //.
  98 // CHECK: !2 = !{!"sanmd_covered!C", !3}
  99 // CHECK: !3 = !{i64 0}
 100 // CHECK: !4 = !{!"sanmd_covered!C", !5}
 101 // CHECK: !5 = !{i64 3}
 102 // CHECK: !6 = !{!7, !7, i64 0}
 103 // CHECK: !7 = !{!"any pointer", !8, i64 0}
 104 // CHECK: !8 = !{!"omnipotent char", !9, i64 0}
 105 // CHECK: !9 = !{!"Simple C/C++ TBAA"}
 106 // CHECK: !10 = !{!"sanmd_atomics!C"}
 107 // CHECK: !11 = !{!12, !12, i64 0}
 108 // CHECK: !12 = !{!"int", !8, i64 0}
 109 // CHECK: !13 = !{!"sanmd_covered!C", !14}
 110 // CHECK: !14 = !{i64 2}
 111 //.