1 ; RUN: opt < %s -sancov -sanitizer-coverage-level=0 -S | FileCheck %s --check-prefix=CHECK0 2 ; RUN: opt < %s -sancov -sanitizer-coverage-level=1 -S | FileCheck %s --check-prefix=CHECK1 3 ; RUN: opt < %s -sancov -sanitizer-coverage-level=2 -S | FileCheck %s --check-prefix=CHECK2 4 ; RUN: opt < %s -sancov -sanitizer-coverage-level=2 -sanitizer-coverage-block-threshold=10 -S | FileCheck %s --check-prefix=CHECK2 5 ; RUN: opt < %s -sancov -sanitizer-coverage-level=2 -sanitizer-coverage-block-threshold=0 -S | FileCheck %s --check-prefix=CHECK_WITH_CHECK 6 ; RUN: opt < %s -sancov -sanitizer-coverage-level=2 -sanitizer-coverage-block-threshold=1 -S | FileCheck %s --check-prefix=CHECK_WITH_CHECK 7 ; RUN: opt < %s -sancov -sanitizer-coverage-level=3 -sanitizer-coverage-block-threshold=10 -S | FileCheck %s --check-prefix=CHECK3 8 ; RUN: opt < %s -sancov -sanitizer-coverage-level=4 -S | FileCheck %s --check-prefix=CHECK4 9 ; RUN: opt < %s -sancov -sanitizer-coverage-level=4 -sanitizer-coverage-trace-pc -S | FileCheck %s --check-prefix=CHECK_TRACE_PC 10 ; RUN: opt < %s -sancov -sanitizer-coverage-level=3 -sanitizer-coverage-8bit-counters=1 -S | FileCheck %s --check-prefix=CHECK-8BIT 11 12 ; RUN: opt < %s -sancov -sanitizer-coverage-level=2 -sanitizer-coverage-block-threshold=10 \ 13 ; RUN: -S | FileCheck %s --check-prefix=CHECK2 14 ; RUN: opt < %s -sancov -sanitizer-coverage-level=2 -sanitizer-coverage-block-threshold=1 \ 15 ; RUN: -S | FileCheck %s --check-prefix=CHECK_WITH_CHECK 16 ; RUN: opt < %s -sancov -sanitizer-coverage-level=3 -sanitizer-coverage-prune-blocks=1 -S | FileCheck %s --check-prefix=CHECKPRUNE 17 18 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" 19 target triple = "x86_64-unknown-linux-gnu" 20 define void @foo(i32* %a) sanitize_address { 21 entry: 22 %tobool = icmp eq i32* %a, null 23 br i1 %tobool, label %if.end, label %if.then 24 25 if.then: ; preds = %entry 26 store i32 0, i32* %a, align 4 27 br label %if.end 28 29 if.end: ; preds = %entry, %if.then 30 ret void 31 } 32 33 ; CHECK0-NOT: @llvm.global_ctors = {{.*}}{ i32 2, void ()* @sancov.module_ctor } 34 ; CHECK1: @llvm.global_ctors = {{.*}}{ i32 2, void ()* @sancov.module_ctor, i8* null } 35 ; CHECK2: @llvm.global_ctors = {{.*}}{ i32 2, void ()* @sancov.module_ctor, i8* null } 36 37 ; CHECK0-NOT: call void @__sanitizer_cov( 38 ; CHECK0-NOT: call void @__sanitizer_cov_module_init( 39 40 ; CHECK1-LABEL: define void @foo 41 ; CHECK1: %0 = load atomic i32, i32* {{.*}} monotonic, align 4, !nosanitize 42 ; CHECK1: %1 = icmp sge i32 0, %0 43 ; CHECK1: br i1 %1, label %2, label %3 44 ; CHECK1: call void @__sanitizer_cov(i32*{{.*}}) 45 ; CHECK1: call void asm sideeffect "", ""() 46 ; CHECK1-NOT: call void @__sanitizer_cov 47 ; CHECK1: ret void 48 49 ; CHECK1-LABEL: define internal void @sancov.module_ctor 50 ; CHECK1-NOT: ret 51 ; CHECK1: call void @__sanitizer_cov_module_init({{.*}}, i64 2, 52 ; CHECK1: ret 53 54 ; CHECK_WITH_CHECK-LABEL: define void @foo 55 ; CHECK_WITH_CHECK: __sanitizer_cov_with_check 56 ; CHECK_WITH_CHECK: ret void 57 ; CHECK_WITH_CHECK-LABEL: define internal void @sancov.module_ctor 58 ; CHECK_WITH_CHECK-NOT: ret 59 ; CHECK_WITH_CHECK: call void @__sanitizer_cov_module_init({{.*}}, i64 3, 60 ; CHECK_WITH_CHECK: ret 61 62 ; CHECK2-LABEL: define void @foo 63 ; CHECK2: call void @__sanitizer_cov 64 ; CHECK2: call void asm sideeffect "", ""() 65 ; CHECK2: call void @__sanitizer_cov 66 ; CHECK2: call void asm sideeffect "", ""() 67 ; CHECK2: call void asm sideeffect "", ""() 68 ; CHECK2-NOT: call void @__sanitizer_cov 69 ; CHECK2: ret void 70 71 ; CHECK2-LABEL: define internal void @sancov.module_ctor 72 ; CHECK2-NOT: ret 73 ; CHECK2: call void @__sanitizer_cov_module_init({{.*}}, i64 3, 74 ; CHECK2: ret 75 76 ; CHECK3-LABEL: define void @foo 77 ; CHECK3: call void @__sanitizer_cov 78 ; CHECK3: call void @__sanitizer_cov 79 ; CHECK3-NOT: ret void 80 ; CHECK3: call void @__sanitizer_cov 81 ; CHECK3-NOT: call void @__sanitizer_cov 82 ; CHECK3: ret void 83 84 ; test -sanitizer-coverage-8bit-counters=1 85 ; CHECK-8BIT-LABEL: define void @foo 86 87 ; CHECK-8BIT: [[V11:%[0-9]*]] = load i8{{.*}}!nosanitize 88 ; CHECK-8BIT: [[V12:%[0-9]*]] = add i8 [[V11]], 1 89 ; CHECK-8BIT: store i8 [[V12]]{{.*}}!nosanitize 90 ; CHECK-8BIT: [[V21:%[0-9]*]] = load i8{{.*}}!nosanitize 91 ; CHECK-8BIT: [[V22:%[0-9]*]] = add i8 [[V21]], 1 92 ; CHECK-8BIT: store i8 [[V22]]{{.*}}!nosanitize 93 ; CHECK-8BIT: [[V31:%[0-9]*]] = load i8{{.*}}!nosanitize 94 ; CHECK-8BIT: [[V32:%[0-9]*]] = add i8 [[V31]], 1 95 ; CHECK-8BIT: store i8 [[V32]]{{.*}}!nosanitize 96 ; CHECK-8BIT: [[V41:%[0-9]*]] = load i8{{.*}}!nosanitize 97 ; CHECK-8BIT: [[V42:%[0-9]*]] = add i8 [[V41]], 1 98 ; CHECK-8BIT: store i8 [[V42]]{{.*}}!nosanitize 99 100 ; CHECK-8BIT: ret void 101 102 103 %struct.StructWithVptr = type { i32 (...)** } 104 105 define void @CallViaVptr(%struct.StructWithVptr* %foo) uwtable sanitize_address { 106 entry: 107 %0 = bitcast %struct.StructWithVptr* %foo to void (%struct.StructWithVptr*)*** 108 %vtable = load void (%struct.StructWithVptr*)**, void (%struct.StructWithVptr*)*** %0, align 8 109 %1 = load void (%struct.StructWithVptr*)*, void (%struct.StructWithVptr*)** %vtable, align 8 110 tail call void %1(%struct.StructWithVptr* %foo) 111 tail call void %1(%struct.StructWithVptr* %foo) 112 tail call void asm sideeffect "", ""() 113 ret void 114 } 115 116 ; We expect to see two calls to __sanitizer_cov_indir_call16 117 ; with different values of second argument. 118 ; CHECK4-LABEL: define void @CallViaVptr 119 ; CHECK4: call void @__sanitizer_cov_indir_call16({{.*}},[[CACHE:.*]]) 120 ; CHECK4-NOT: call void @__sanitizer_cov_indir_call16({{.*}},[[CACHE]]) 121 ; CHECK4: ret void 122 123 ; CHECK_TRACE_PC-LABEL: define void @foo 124 ; CHECK_TRACE_PC: call void @__sanitizer_cov_trace_pc 125 ; CHECK_TRACE_PC: call void asm sideeffect "", ""() 126 ; CHECK_TRACE_PC: ret void 127 128 ; CHECK_TRACE_PC-LABEL: define void @CallViaVptr 129 ; CHECK_TRACE_PC: call void @__sanitizer_cov_trace_pc_indir 130 ; CHECK_TRACE_PC: call void @__sanitizer_cov_trace_pc_indir 131 ; CHECK_TRACE_PC: ret void 132 133 define void @call_unreachable() uwtable sanitize_address { 134 entry: 135 unreachable 136 } 137 138 ; CHECK4-LABEL: define void @call_unreachable 139 ; CHECK4-NOT: __sanitizer_cov 140 ; CHECK4: unreachable 141 142 ; CHECKPRUNE-LABEL: define void @foo 143 ; CHECKPRUNE: call void @__sanitizer_cov 144 ; CHECKPRUNE: call void @__sanitizer_cov 145 ; CHECKPRUNE: call void @__sanitizer_cov 146 ; CHECKPRUNE-NOT: call void @__sanitizer_cov 147 ; CHECKPRUNE: ret void 148
