1; RUN: opt < %s -sancov -sanitizer-coverage-level=4 -sanitizer-coverage-trace-pc-guard  -S | FileCheck %s --check-prefix=CHECK_TRACE_PC_GUARD
2
3target 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"
4target triple = "x86_64-unknown-linux-gnu"
5define void @foo(i32* %a) sanitize_address {
6entry:
7  %tobool = icmp eq i32* %a, null
8  br i1 %tobool, label %if.end, label %if.then
9
10  if.then:                                          ; preds = %entry
11  store i32 0, i32* %a, align 4
12  br label %if.end
13
14  if.end:                                           ; preds = %entry, %if.then
15  ret void
16}
17
18%struct.StructWithVptr = type { i32 (...)** }
19
20define void @CallViaVptr(%struct.StructWithVptr* %foo) uwtable sanitize_address {
21entry:
22  %0 = bitcast %struct.StructWithVptr* %foo to void (%struct.StructWithVptr*)***
23  %vtable = load void (%struct.StructWithVptr*)**, void (%struct.StructWithVptr*)*** %0, align 8
24  %1 = load void (%struct.StructWithVptr*)*, void (%struct.StructWithVptr*)** %vtable, align 8
25  tail call void %1(%struct.StructWithVptr* %foo)
26  tail call void %1(%struct.StructWithVptr* %foo)
27  tail call void asm sideeffect "", ""()
28  ret void
29}
30
31; CHECK_TRACE_PC_GUARD-LABEL: define void @foo
32; CHECK_TRACE_PC_GUARD: call void @__sanitizer_cov_trace_pc
33; CHECK_TRACE_PC_GUARD: call void asm sideeffect "", ""()
34; CHECK_TRACE_PC_GUARD: ret void
35
36; CHECK_TRACE_PC_GUARD-LABEL: define void @CallViaVptr
37; CHECK_TRACE_PC_GUARD: call void @__sanitizer_cov_trace_pc_indir
38; CHECK_TRACE_PC_GUARD: call void @__sanitizer_cov_trace_pc_indir
39; CHECK_TRACE_PC_GUARD: ret void
40
41; CHECK_TRACE_PC_GUARD-LABEL: define internal void @sancov.module_ctor() comdat
42
43