1; RUN: opt -thinlto-bc %s -write-relbf-to-summary -thin-link-bitcode-file=%t1.thinlink.bc -o %t1.bc
2; RUN: opt -thinlto-bc %p/Inputs/function_entry_count.ll -write-relbf-to-summary -thin-link-bitcode-file=%t2.thinlink.bc -o %t2.bc
3
4; First perform the thin link on the normal bitcode file.
5; RUN: llvm-lto2 run %t1.bc %t2.bc -o %t.o -save-temps -thinlto-synthesize-entry-counts \
6; RUN:     -r=%t1.bc,g, \
7; RUN:     -r=%t1.bc,f,px \
8; RUN:     -r=%t1.bc,h,px \
9; RUN:     -r=%t2.bc,h, \
10; RUN:     -r=%t2.bc,g,px
11; RUN: llvm-dis -o - %t.o.1.3.import.bc | FileCheck %s
12
13; RUN: llvm-lto -thinlto-action=run -thinlto-synthesize-entry-counts -exported-symbol=f \
14; RUN:     -exported-symbol=g -exported-symbol=h -thinlto-save-temps=%t3. %t1.bc %t2.bc
15; RUN: llvm-dis %t3.0.3.imported.bc -o - | FileCheck %s
16
17; CHECK: define void @h() !prof ![[PROF2:[0-9]+]]
18; CHECK: define void @f(i32{{.*}}) !prof ![[PROF1:[0-9]+]]
19; CHECK: define available_externally void @g() !prof ![[PROF2]]
20; CHECK-DAG: ![[PROF1]] = !{!"synthetic_function_entry_count", i64 10}
21; CHECK-DAG: ![[PROF2]] = !{!"synthetic_function_entry_count", i64 198}
22
23target triple = "x86_64-unknown-linux-gnu"
24target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
25
26declare void @g();
27
28define void @h() {
29  ret void
30}
31
32define void @f(i32 %n) {
33entry:
34  %cmp = icmp slt i32 %n, 1
35  br i1 %cmp, label %exit, label %loop
36loop:
37  %n1 = phi i32 [%n, %entry], [%n2, %loop]
38  call void  @g()
39  %n2 = sub i32 %n1, 1
40  %cmp2 = icmp slt i32 %n, 1
41  br i1 %cmp2, label %exit, label %loop
42exit:
43  ret void
44}
45