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=3 -sanitizer-coverage-8bit-counters=1 -S | FileCheck %s --check-prefix=CHECK-8BIT 10 11; RUN: opt < %s -sancov -sanitizer-coverage-level=2 -sanitizer-coverage-block-threshold=10 \ 12; RUN: -S | FileCheck %s --check-prefix=CHECK2 13; RUN: opt < %s -sancov -sanitizer-coverage-level=2 -sanitizer-coverage-block-threshold=1 \ 14; RUN: -S | FileCheck %s --check-prefix=CHECK_WITH_CHECK 15 16target 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" 17target triple = "x86_64-unknown-linux-gnu" 18define void @foo(i32* %a) sanitize_address { 19entry: 20 %tobool = icmp eq i32* %a, null 21 br i1 %tobool, label %if.end, label %if.then 22 23 if.then: ; preds = %entry 24 store i32 0, i32* %a, align 4 25 br label %if.end 26 27 if.end: ; preds = %entry, %if.then 28 ret void 29} 30 31; CHECK0-NOT: @llvm.global_ctors = {{.*}}{ i32 2, void ()* @sancov.module_ctor } 32; CHECK1: @llvm.global_ctors = {{.*}}{ i32 2, void ()* @sancov.module_ctor, i8* null } 33; CHECK2: @llvm.global_ctors = {{.*}}{ i32 2, void ()* @sancov.module_ctor, i8* null } 34 35; CHECK0-NOT: call void @__sanitizer_cov( 36; CHECK0-NOT: call void @__sanitizer_cov_module_init( 37 38; CHECK1-LABEL: define void @foo 39; CHECK1: %0 = load atomic i32, i32* {{.*}} monotonic, align 4, !nosanitize 40; CHECK1: %1 = icmp sge i32 0, %0 41; CHECK1: br i1 %1, label %2, label %3 42; CHECK1: call void @__sanitizer_cov(i32*{{.*}}) 43; CHECK1: call void asm sideeffect "", ""() 44; CHECK1-NOT: call void @__sanitizer_cov 45; CHECK1: ret void 46 47; CHECK1-LABEL: define internal void @sancov.module_ctor 48; CHECK1-NOT: ret 49; CHECK1: call void @__sanitizer_cov_module_init({{.*}}, i64 2, 50; CHECK1: ret 51 52; CHECK_WITH_CHECK-LABEL: define void @foo 53; CHECK_WITH_CHECK: __sanitizer_cov_with_check 54; CHECK_WITH_CHECK: ret void 55; CHECK_WITH_CHECK-LABEL: define internal void @sancov.module_ctor 56; CHECK_WITH_CHECK-NOT: ret 57; CHECK_WITH_CHECK: call void @__sanitizer_cov_module_init({{.*}}, i64 4, 58; CHECK_WITH_CHECK: ret 59 60; CHECK2-LABEL: define void @foo 61; CHECK2: call void @__sanitizer_cov 62; CHECK2: call void asm sideeffect "", ""() 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-NOT: call void @__sanitizer_cov 68; CHECK2: ret void 69 70; CHECK2-LABEL: define internal void @sancov.module_ctor 71; CHECK2-NOT: ret 72; CHECK2: call void @__sanitizer_cov_module_init({{.*}}, i64 4, 73; CHECK2: ret 74 75; CHECK3-LABEL: define void @foo 76; CHECK3: call void @__sanitizer_cov 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 105define void @CallViaVptr(%struct.StructWithVptr* %foo) uwtable sanitize_address { 106entry: 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 123define void @call_unreachable() uwtable sanitize_address { 124entry: 125 unreachable 126} 127 128; CHECK4-LABEL: define void @call_unreachable 129; CHECK4-NOT: __sanitizer_cov 130; CHECK4: unreachable 131