1; Test -sanitizer-coverage-trace-compares=1 (instrumenting a switch)
2; RUN: opt < %s -sancov -sanitizer-coverage-level=1 -sanitizer-coverage-trace-compares=1  -S | FileCheck %s
3
4target 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"
5target triple = "x86_64-unknown-linux-gnu"
6declare void @_Z3bari(i32)
7define void @foo(i32 %x) {
8entry:
9; CHECK: __sancov_gen_cov_switch_values = internal global [5 x i64] [i64 3, i64 32, i64 1, i64 101, i64 1001]
10; CHECK: [[TMP:%[0-9]*]] = zext i32 %x to i64
11; CHECK-NEXT: call void @__sanitizer_cov_trace_switch(i64 [[TMP]], i64* getelementptr inbounds ([5 x i64], [5 x i64]* @__sancov_gen_cov_switch_values, i32 0, i32 0))
12  switch i32 %x, label %sw.epilog [
13    i32 1, label %sw.bb
14    i32 1001, label %sw.bb.1
15    i32 101, label %sw.bb.2
16  ]
17
18sw.bb:                                            ; preds = %entry
19  tail call void @_Z3bari(i32 4)
20  br label %sw.epilog
21
22sw.bb.1:                                          ; preds = %entry
23  tail call void @_Z3bari(i32 5)
24  br label %sw.epilog
25
26sw.bb.2:                                          ; preds = %entry
27  tail call void @_Z3bari(i32 6)
28  br label %sw.epilog
29
30sw.epilog:                                        ; preds = %entry, %sw.bb.2, %sw.bb.1, %sw.bb
31  ret void
32}
33
34define void @fooi72(i72 %x) {
35entry:
36  switch i72 %x, label %sw.epilog [
37    i72 1, label %sw.bb
38    i72 101, label %sw.bb.1
39    i72 1001, label %sw.bb.2
40  ]
41
42sw.bb:                                            ; preds = %entry
43  tail call void @_Z3bari(i32 4)
44  br label %sw.epilog
45
46sw.bb.1:                                          ; preds = %entry
47  tail call void @_Z3bari(i32 5)
48  br label %sw.epilog
49
50sw.bb.2:                                          ; preds = %entry
51  tail call void @_Z3bari(i32 6)
52  br label %sw.epilog
53
54sw.epilog:                                        ; preds = %entry, %sw.bb.2, %sw.bb.1, %sw.bb
55  ret void
56}
57