1 ; RUN: opt < %s -sancov -sanitizer-coverage-level=4 -sanitizer-coverage-trace-pc -S | FileCheck %s --check-prefix=CHECK_TRACE_PC
3 ; RUN: opt < %s -sancov -sanitizer-coverage-level=3 -sanitizer-coverage-prune-blocks=1 -S | FileCheck %s --check-prefix=CHECKPRUNE
5 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"
6 target triple = "x86_64-unknown-linux-gnu"
7 define void @foo(i32* %a) sanitize_address {
9 %tobool = icmp eq i32* %a, null
10 br i1 %tobool, label %if.end, label %if.then
12 if.then: ; preds = %entry
13 store i32 0, i32* %a, align 4
16 if.end: ; preds = %entry, %if.then
20 ; CHECK0-NOT: @llvm.global_ctors = {{.*}}{ i32 2, void ()* @sancov.module_ctor }
21 ; CHECK1: @llvm.global_ctors = {{.*}}{ i32 2, void ()* @sancov.module_ctor, i8* null }
22 ; CHECK2: @llvm.global_ctors = {{.*}}{ i32 2, void ()* @sancov.module_ctor, i8* null }
24 ; CHECK0-NOT: call void @__sanitizer_cov(
25 ; CHECK0-NOT: call void @__sanitizer_cov_module_init(
27 ; CHECK1-LABEL: define void @foo
28 ; CHECK1: %0 = load atomic i32, i32* {{.*}} monotonic, align 4, !nosanitize
29 ; CHECK1: %1 = icmp sge i32 0, %0
30 ; CHECK1: br i1 %1, label %2, label %3
31 ; CHECK1: call void @__sanitizer_cov(i32*{{.*}})
32 ; CHECK1: call void asm sideeffect "", ""()
33 ; CHECK1-NOT: call void @__sanitizer_cov
36 ; CHECK1-LABEL: define internal void @sancov.module_ctor
38 ; CHECK1: call void @__sanitizer_cov_module_init({{.*}}, i64 2, {{.*}}@__sancov_gen_modname
41 ; CHECK_WITH_CHECK-LABEL: define void @foo
42 ; CHECK_WITH_CHECK: __sanitizer_cov_with_check
43 ; CHECK_WITH_CHECK: ret void
44 ; CHECK_WITH_CHECK-LABEL: define internal void @sancov.module_ctor
45 ; CHECK_WITH_CHECK-NOT: ret
46 ; CHECK_WITH_CHECK: call void @__sanitizer_cov_module_init({{.*}}, i64 3,
47 ; CHECK_WITH_CHECK: ret
49 ; CHECK2-LABEL: define void @foo
50 ; CHECK2: call void @__sanitizer_cov
51 ; CHECK2: call void asm sideeffect "", ""()
52 ; CHECK2: call void @__sanitizer_cov
53 ; CHECK2: call void asm sideeffect "", ""()
54 ; CHECK2: call void asm sideeffect "", ""()
55 ; CHECK2-NOT: call void @__sanitizer_cov
58 ; CHECK2-LABEL: define internal void @sancov.module_ctor
60 ; CHECK2: call void @__sanitizer_cov_module_init({{.*}}, i64 3,
63 ; CHECK3-LABEL: define void @foo
64 ; CHECK3: call void @__sanitizer_cov
65 ; CHECK3: call void @__sanitizer_cov
66 ; CHECK3-NOT: ret void
67 ; CHECK3: call void @__sanitizer_cov
68 ; CHECK3-NOT: call void @__sanitizer_cov
71 %struct.StructWithVptr = type { i32 (...)** }
73 define void @CallViaVptr(%struct.StructWithVptr* %foo) uwtable sanitize_address {
75 %0 = bitcast %struct.StructWithVptr* %foo to void (%struct.StructWithVptr*)***
76 %vtable = load void (%struct.StructWithVptr*)**, void (%struct.StructWithVptr*)*** %0, align 8
77 %1 = load void (%struct.StructWithVptr*)*, void (%struct.StructWithVptr*)** %vtable, align 8
78 tail call void %1(%struct.StructWithVptr* %foo)
79 tail call void %1(%struct.StructWithVptr* %foo)
80 tail call void asm sideeffect "", ""()
84 ; CHECK_TRACE_PC-LABEL: define void @foo
85 ; CHECK_TRACE_PC: call void @__sanitizer_cov_trace_pc
86 ; CHECK_TRACE_PC: call void asm sideeffect "", ""()
87 ; CHECK_TRACE_PC: ret void
89 ; CHECK_TRACE_PC-LABEL: define void @CallViaVptr
90 ; CHECK_TRACE_PC: call void @__sanitizer_cov_trace_pc_indir
91 ; CHECK_TRACE_PC: call void @__sanitizer_cov_trace_pc_indir
92 ; CHECK_TRACE_PC: ret void
94 define void @call_unreachable() uwtable sanitize_address {
99 ; CHECKPRUNE-LABEL: define void @foo
100 ; CHECKPRUNE: call void @__sanitizer_cov
101 ; CHECKPRUNE: call void @__sanitizer_cov
102 ; CHECKPRUNE: call void @__sanitizer_cov
103 ; CHECKPRUNE-NOT: call void @__sanitizer_cov
104 ; CHECKPRUNE: ret void