1; Do setup work for all below tests: generate bitcode and combined index
2; RUN: llvm-as -function-summary %s -o %t.bc
3; RUN: llvm-as -function-summary %p/Inputs/funcimport.ll -o %t2.bc
4; RUN: llvm-lto -thinlto -o %t3 %t.bc %t2.bc
5
6; Do the import now
7; RUN: opt -function-import -summary-file %t3.thinlto.bc %s -S | FileCheck %s
8
9define i32 @main() #0 {
10entry:
11  call void (...) @weakalias()
12  call void (...) @analias()
13  %call = call i32 (...) @referencestatics()
14  %call1 = call i32 (...) @referenceglobals()
15  %call2 = call i32 (...) @referencecommon()
16  call void (...) @setfuncptr()
17  call void (...) @callfuncptr()
18  call void (...) @weakfunc()
19  ret i32 0
20}
21
22; Won't import weak alias
23; CHECK-DAG: declare extern_weak void @weakalias()
24declare void @weakalias(...) #1
25
26; Aliases import the aliasee function
27; CHECK-DAG: @analias = alias void (...), bitcast (void ()* @globalfunc2 to void (...)*)
28; CHECK-DAG: define available_externally void @globalfunc2()
29declare void @analias(...) #1
30
31; CHECK-DAG: define available_externally i32 @referencestatics(i32 %i)
32declare i32 @referencestatics(...) #1
33
34; The import of referencestatics will expose call to staticfunc that
35; should in turn be imported as a promoted/renamed and hidden function.
36; Ensure that the call is to the properly-renamed function.
37; CHECK-DAG: %call = call i32 @staticfunc.llvm.2()
38; CHECK-DAG: define available_externally hidden i32 @staticfunc.llvm.2()
39
40; CHECK-DAG: define available_externally i32 @referenceglobals(i32 %i)
41declare i32 @referenceglobals(...) #1
42
43; The import of referenceglobals will expose call to globalfunc1 that
44; should in turn be imported.
45; CHECK-DAG: define available_externally void @globalfunc1()
46
47; CHECK-DAG: define available_externally i32 @referencecommon(i32 %i)
48declare i32 @referencecommon(...) #1
49
50; CHECK-DAG: define available_externally void @setfuncptr()
51declare void @setfuncptr(...) #1
52
53; CHECK-DAG: define available_externally void @callfuncptr()
54declare void @callfuncptr(...) #1
55
56; Ensure that all uses of local variable @P which has used in setfuncptr
57; and callfuncptr are to the same promoted/renamed global.
58; CHECK-DAG: @P.llvm.2 = available_externally hidden global void ()* null
59; CHECK-DAG: %0 = load void ()*, void ()** @P.llvm.2,
60; CHECK-DAG: store void ()* @staticfunc2.llvm.2, void ()** @P.llvm.2,
61
62; Won't import weak func
63; CHECK-DAG: declare void @weakfunc(...)
64declare void @weakfunc(...) #1
65
66