1; RUN: opt < %s -sancov -sanitizer-coverage-level=1 -sanitizer-coverage-inline-8bit-counters=1 -sanitizer-coverage-pc-table=1 -S -enable-new-pm=0 | FileCheck %s
2; RUN: opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=1 -sanitizer-coverage-inline-8bit-counters=1 -sanitizer-coverage-pc-table=1 -S | FileCheck %s
3
4; Make sure we use the right comdat groups for COFF to avoid relocations
5; against discarded sections. Internal linkage functions are also different from
6; ELF. We don't add a module unique identifier.
7
8; Test based on this source:
9; int baz(int);
10; static int __attribute__((noinline)) bar(int x) {
11;   if (x)
12;     return baz(x);
13;   return 0;
14; }
15; int foo(int x) {
16;   if (baz(0))
17;     x = bar(x);
18;   return x;
19; }
20
21; Both new comdats should no duplicates on COFF.
22
23; CHECK: $foo = comdat noduplicates
24; CHECK: $bar = comdat noduplicates
25
26; Tables for 'foo' should be in the 'foo' comdat.
27
28; CHECK: @__sancov_gen_{{.*}} = private global [1 x i8] zeroinitializer, section ".SCOV$CM", comdat($foo), align 1
29
30; CHECK: @__sancov_gen_{{.*}} = private constant [2 x i64*]
31; CHECK-SAME: [i64* bitcast (i32 (i32)* @foo to i64*), i64* inttoptr (i64 1 to i64*)],
32; CHECK-SAME: section ".SCOVP$M", comdat($foo), align 8
33
34; Tables for 'bar' should be in the 'bar' comdat.
35
36; CHECK: @__sancov_gen_{{.*}} = private global [1 x i8] zeroinitializer, section ".SCOV$CM", comdat($bar), align 1
37
38; CHECK: @__sancov_gen_{{.*}} = private constant [2 x i64*]
39; CHECK-SAME: [i64* bitcast (i32 (i32)* @bar to i64*), i64* inttoptr (i64 1 to i64*)],
40; CHECK-SAME: section ".SCOVP$M", comdat($bar), align 8
41
42; 'foo' and 'bar' should be in their new comdat groups.
43
44; CHECK: define dso_local i32 @foo(i32 %x){{.*}} comdat {
45; CHECK: define internal fastcc i32 @bar(i32 %x){{.*}} comdat {
46
47target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
48target triple = "x86_64-pc-windows-msvc19.14.26433"
49
50; Function Attrs: nounwind uwtable
51define dso_local i32 @foo(i32 %x) local_unnamed_addr #0 {
52entry:
53  %call = tail call i32 @baz(i32 0) #3
54  %tobool = icmp eq i32 %call, 0
55  br i1 %tobool, label %if.end, label %if.then
56
57if.then:                                          ; preds = %entry
58  %call1 = tail call fastcc i32 @bar(i32 %x)
59  br label %if.end
60
61if.end:                                           ; preds = %entry, %if.then
62  %x.addr.0 = phi i32 [ %call1, %if.then ], [ %x, %entry ]
63  ret i32 %x.addr.0
64}
65
66declare dso_local i32 @baz(i32) local_unnamed_addr #1
67
68; Function Attrs: noinline nounwind uwtable
69define internal fastcc i32 @bar(i32 %x) unnamed_addr #2 {
70entry:
71  %tobool = icmp eq i32 %x, 0
72  br i1 %tobool, label %return, label %if.then
73
74if.then:                                          ; preds = %entry
75  %call = tail call i32 @baz(i32 %x) #3
76  br label %return
77
78return:                                           ; preds = %entry, %if.then
79  %retval.0 = phi i32 [ %call, %if.then ], [ 0, %entry ]
80  ret i32 %retval.0
81}
82
83attributes #0 = { nounwind uwtable }
84attributes #1 = { "asdf" }
85attributes #2 = { noinline nounwind uwtable }
86attributes #3 = { nounwind }
87