1; RUN: llvm-profdata merge %S/Inputs/func_entry.proftext -o %t.profdata
2; RUN: opt < %s -passes=pgo-instr-use -pgo-test-profile-file=%t.profdata -S | FileCheck %s
3
4target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
5target triple = "x86_64-unknown-linux-gnu"
6
7@s = common dso_local local_unnamed_addr global i32 0, align 4
8
9define void @cold() {
10; CHECK-LABEL: @cold()
11; CHECK-SAME: #[[COLD_ATTR:[0-1]+]]
12; CHECK-SAME: !prof ![[FUNC_ENTRY_COUNT_ZERO:[0-9]+]]
13
14entry:
15  store i32 1, i32* @s, align 4
16  ret void
17}
18
19define void @hot() {
20; CHECK-LABEL: @hot()
21; CHECK-SAME: #[[HOT_ATTR:[0-1]+]]
22; CHECK-SAME: !prof ![[FUNC_ENTRY_COUNT_NON_ZERO:[0-9]+]]
23entry:
24  %0 = load i32, i32* @s, align 4
25  %add = add nsw i32 %0, 4
26  store i32 %add, i32* @s, align 4
27  ret void
28}
29
30define void @med() {
31; CHECK-LABEL: @med
32; CHECK-NOT: #
33; CHECK-SAME: !prof ![[FUNC_ENTRY_COUNT_MED:[0-9]+]]
34
35entry:
36  store i32 1, i32* @s, align 4
37  ret void
38}
39
40; CHECK-DAG: attributes #[[COLD_ATTR]] = { cold }
41; CHECK-DAG: attributes #[[HOT_ATTR]] = { inlinehint }
42; CHECK-DAG: ![[FUNC_ENTRY_COUNT_ZERO]] = !{!"function_entry_count", i64 10}
43; CHECK-DAG: ![[FUNC_ENTRY_COUNT_NON_ZERO]] = !{!"function_entry_count", i64 9000}
44; CHECK-DAG: ![[FUNC_ENTRY_COUNT_MED]] = !{!"function_entry_count", i64 50}
45