; RUN: opt < %s -sancov -sanitizer-coverage-level=4 -sanitizer-coverage-trace-pc-guard  -S | FileCheck %s --check-prefix=CHECK_TRACE_PC_GUARD
; RUN: opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=4 -sanitizer-coverage-trace-pc-guard  -S | FileCheck %s --check-prefix=CHECK_TRACE_PC_GUARD

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"
target triple = "x86_64-unknown-linux-gnu"
define void @foo(i32* %a) sanitize_address {
entry:
  %tobool = icmp eq i32* %a, null
  br i1 %tobool, label %if.end, label %if.then

  if.then:                                          ; preds = %entry
  store i32 0, i32* %a, align 4
  br label %if.end

  if.end:                                           ; preds = %entry, %if.then
  ret void
}

%struct.StructWithVptr = type { i32 (...)** }

define void @CallViaVptr(%struct.StructWithVptr* %foo) uwtable sanitize_address {
entry:
  %0 = bitcast %struct.StructWithVptr* %foo to void (%struct.StructWithVptr*)***
  %vtable = load void (%struct.StructWithVptr*)**, void (%struct.StructWithVptr*)*** %0, align 8
  %1 = load void (%struct.StructWithVptr*)*, void (%struct.StructWithVptr*)** %vtable, align 8
  tail call void %1(%struct.StructWithVptr* %foo)
  tail call void %1(%struct.StructWithVptr* %foo)
  tail call void asm sideeffect "", ""()
  ret void
}

; CHECK_TRACE_PC_GUARD-LABEL: define void @foo
; CHECK_TRACE_PC_GUARD: call void @__sanitizer_cov_trace_pc
; CHECK_TRACE_PC_GUARD: call void asm sideeffect "", ""()
; CHECK_TRACE_PC_GUARD: ret void

; CHECK_TRACE_PC_GUARD-LABEL: define void @CallViaVptr
; CHECK_TRACE_PC_GUARD: call void @__sanitizer_cov_trace_pc_indir
; CHECK_TRACE_PC_GUARD: call void @__sanitizer_cov_trace_pc_indir
; CHECK_TRACE_PC_GUARD: ret void

; CHECK_TRACE_PC_GUARD-LABEL: define internal void @sancov.module_ctor_trace_pc_guard() comdat