1; Test -sanitizer-coverage-experimental-tracing
2
3; RUN: opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=3 -sanitizer-coverage-trace-pc  -S | FileCheck %s --check-prefix=CHECK_PC
4; RUN: opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=3 -sanitizer-coverage-trace-pc-guard  -S | FileCheck %s --check-prefix=CHECK_PC_GUARD
5; RUN: opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=3 -sanitizer-coverage-trace-pc-guard  -S -mtriple=x86_64-apple-macosx | FileCheck %s --check-prefix=CHECK_PC_GUARD_DARWIN
6
7target 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"
8target triple = "x86_64-unknown-linux-gnu"
9define void @foo(i32* %a) sanitize_address {
10entry:
11  %tobool = icmp eq i32* %a, null
12  br i1 %tobool, label %if.end, label %if.then
13
14  if.then:                                          ; preds = %entry
15  store i32 0, i32* %a, align 4
16  br label %if.end
17
18  if.end:                                           ; preds = %entry, %if.then
19  ret void
20}
21
22define available_externally void @external_bar(i32* %a) sanitize_address {
23entry:
24  ret void
25}
26
27declare void @longjmp(i8*) noreturn
28
29; We expect three coverage points here for each BB.
30define void @cond_longjmp(i1 %cond, i8* %jmp_buf) sanitize_address {
31entry:
32  br i1 %cond, label %lj, label %done
33done:
34  ret void
35lj:
36  call void @longjmp(i8* %jmp_buf)
37  unreachable
38}
39
40
41; CHECK_PC-LABEL: define void @foo
42; CHECK_PC: call void @__sanitizer_cov_trace_pc
43; CHECK_PC: call void @__sanitizer_cov_trace_pc
44; CHECK_PC: call void @__sanitizer_cov_trace_pc
45; CHECK_PC-NOT: call void @__sanitizer_cov_trace_pc
46; CHECK_PC: ret void
47; CHECK_PC-NOT: call void @__sanitizer_cov_module_init
48; CHECK_PC-LABEL: @cond_longjmp
49; CHECK_PC: call void @__sanitizer_cov_trace_pc
50; CHECK_PC: call void @__sanitizer_cov_trace_pc
51; CHECK_PC: ret void
52; CHECK_PC: call void @__sanitizer_cov_trace_pc
53; CHECK_PC: call void @longjmp
54; CHECK_PC: unreachable
55
56; CHECK_PC_GUARD: section "__sancov_guards", comdat($foo), align 4
57; CHECK_PC_GUARD-LABEL: define void @foo
58; CHECK_PC_GUARD: call void @__sanitizer_cov_trace_pc_guard
59; CHECK_PC_GUARD: call void @__sanitizer_cov_trace_pc_guard
60; CHECK_PC_GUARD: call void @__sanitizer_cov_trace_pc_guard
61; CHECK_PC_GUARD-NOT: call void @__sanitizer_cov_trace_pc
62; CHECK_PC_GUARD: ret void
63; CHECK_PC_GUARD-LABEL: @external_bar
64; CHECK_PC_GUARD-NOT: call void @__sanitizer_cov_trace_pc
65; CHECK_PC_GUARD: ret void
66; CHECK_PC_GUARD-LABEL: @cond_longjmp
67; CHECK_PC_GUARD: call void @__sanitizer_cov_trace_pc_guard
68; CHECK_PC_GUARD: call void @__sanitizer_cov_trace_pc_guard
69; CHECK_PC_GUARD: ret void
70; CHECK_PC_GUARD: call void @__sanitizer_cov_trace_pc_guard
71; CHECK_PC_GUARD: call void @longjmp
72; CHECK_PC_GUARD: unreachable
73
74; CHECK_PC_GUARD: call void @__sanitizer_cov_trace_pc_guard_init(i32* @__start___sancov_guards, i32* @__stop___sancov_guards)
75
76; CHECK_PC_GUARD_DARWIN-LABEL: define void @foo
77; CHECK_PC_GUARD_DARWIN: call void @__sanitizer_cov_trace_pc_guard
78; CHECK_PC_GUARD_DARWIN: call void @__sanitizer_cov_trace_pc_guard
79; CHECK_PC_GUARD_DARWIN: call void @__sanitizer_cov_trace_pc_guard
80; CHECK_PC_GUARD_DARWIN-NOT: call void @__sanitizer_cov_trace_pc
81; CHECK_PC_GUARD_DARWIN: ret void
82; CHECK_PC_GUARD_DARWIN: call void @__sanitizer_cov_trace_pc_guard_init(i32* @"\01section$start$__DATA$__sancov_guards", i32* @"\01section$end$__DATA$__sancov_guards")
83