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=CHECK_WITH_CHECK 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 -sanitizer-coverage-trace-pc -S | FileCheck %s --check-prefix=CHECK_TRACE_PC 9 10; RUN: opt < %s -sancov -sanitizer-coverage-level=2 -sanitizer-coverage-block-threshold=10 \ 11; RUN: -S | FileCheck %s --check-prefix=CHECK2 12; RUN: opt < %s -sancov -sanitizer-coverage-level=2 -sanitizer-coverage-block-threshold=1 \ 13; RUN: -S | FileCheck %s --check-prefix=CHECK_WITH_CHECK 14; RUN: opt < %s -sancov -sanitizer-coverage-level=3 -sanitizer-coverage-prune-blocks=1 -S | FileCheck %s --check-prefix=CHECKPRUNE 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, {{.*}}@__sancov_gen_modname 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 3, 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 asm sideeffect "", ""() 66; CHECK2-NOT: call void @__sanitizer_cov 67; CHECK2: ret void 68 69; CHECK2-LABEL: define internal void @sancov.module_ctor 70; CHECK2-NOT: ret 71; CHECK2: call void @__sanitizer_cov_module_init({{.*}}, i64 3, 72; CHECK2: ret 73 74; CHECK3-LABEL: define void @foo 75; CHECK3: call void @__sanitizer_cov 76; CHECK3: call void @__sanitizer_cov 77; CHECK3-NOT: ret void 78; CHECK3: call void @__sanitizer_cov 79; CHECK3-NOT: call void @__sanitizer_cov 80; CHECK3: ret void 81 82%struct.StructWithVptr = type { i32 (...)** } 83 84define void @CallViaVptr(%struct.StructWithVptr* %foo) uwtable sanitize_address { 85entry: 86 %0 = bitcast %struct.StructWithVptr* %foo to void (%struct.StructWithVptr*)*** 87 %vtable = load void (%struct.StructWithVptr*)**, void (%struct.StructWithVptr*)*** %0, align 8 88 %1 = load void (%struct.StructWithVptr*)*, void (%struct.StructWithVptr*)** %vtable, align 8 89 tail call void %1(%struct.StructWithVptr* %foo) 90 tail call void %1(%struct.StructWithVptr* %foo) 91 tail call void asm sideeffect "", ""() 92 ret void 93} 94 95; CHECK_TRACE_PC-LABEL: define void @foo 96; CHECK_TRACE_PC: call void @__sanitizer_cov_trace_pc 97; CHECK_TRACE_PC: call void asm sideeffect "", ""() 98; CHECK_TRACE_PC: ret void 99 100; CHECK_TRACE_PC-LABEL: define void @CallViaVptr 101; CHECK_TRACE_PC: call void @__sanitizer_cov_trace_pc_indir 102; CHECK_TRACE_PC: call void @__sanitizer_cov_trace_pc_indir 103; CHECK_TRACE_PC: ret void 104 105define void @call_unreachable() uwtable sanitize_address { 106entry: 107 unreachable 108} 109 110; CHECKPRUNE-LABEL: define void @foo 111; CHECKPRUNE: call void @__sanitizer_cov 112; CHECKPRUNE: call void @__sanitizer_cov 113; CHECKPRUNE: call void @__sanitizer_cov 114; CHECKPRUNE-NOT: call void @__sanitizer_cov 115; CHECKPRUNE: ret void 116