1; Do setup work for all below tests: generate bitcode and combined index
2; RUN: opt -module-summary %s -o %t.bc
3; RUN: opt -module-summary %p/Inputs/funcimport.ll -o %t2.bc
4; RUN: llvm-lto -thinlto -print-summary-global-ids -o %t3 %t.bc %t2.bc 2>&1 | FileCheck %s --check-prefix=GUID
5
6; Do the import now
7; RUN: opt -function-import -stats -print-imports -enable-import-metadata -summary-file %t3.thinlto.bc %t.bc -S 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=INSTLIMDEF
8; Try again with new pass manager
9; RUN: opt -passes='function-import' -stats -print-imports -enable-import-metadata -summary-file %t3.thinlto.bc %t.bc -S 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=INSTLIMDEF
10; "-stats" requires +Asserts.
11; REQUIRES: asserts
12
13; Test import with smaller instruction limit
14; RUN: opt -function-import -enable-import-metadata  -summary-file %t3.thinlto.bc %t.bc -import-instr-limit=5 -S | FileCheck %s --check-prefix=CHECK --check-prefix=INSTLIM5
15; INSTLIM5-NOT: @staticfunc.llvm.
16
17
18define i32 @main() #0 {
19entry:
20  call void (...) @weakalias()
21  call void (...) @analias()
22  call void (...) @linkoncealias()
23  %call = call i32 (...) @referencestatics()
24  %call1 = call i32 (...) @referenceglobals()
25  %call2 = call i32 (...) @referencecommon()
26  call void (...) @setfuncptr()
27  call void (...) @callfuncptr()
28  call void (...) @weakfunc()
29  call void (...) @linkoncefunc2()
30  call void (...) @referencelargelinkonce()
31  call void (...) @variadic()
32  ret i32 0
33}
34
35; Won't import weak alias
36; CHECK-DAG: declare void @weakalias
37declare void @weakalias(...) #1
38
39; External alias imported as available_externally copy of aliasee
40; CHECK-DAG: define available_externally void @analias
41declare void @analias(...) #1
42
43; External alias imported as available_externally copy of aliasee
44; (linkoncealias is an external alias to a linkonce_odr)
45declare void @linkoncealias(...) #1
46; CHECK-DAG: define available_externally void @linkoncealias()
47
48; INSTLIMDEF-DAG: Import referencestatics
49; INSTLIMDEF-DAG: define available_externally i32 @referencestatics(i32 %i) !thinlto_src_module !0 {
50; INSTLIM5-DAG: declare i32 @referencestatics(...)
51declare i32 @referencestatics(...) #1
52
53; The import of referencestatics will expose call to staticfunc that
54; should in turn be imported as a promoted/renamed and hidden function.
55; Ensure that the call is to the properly-renamed function.
56; INSTLIMDEF-DAG: Import staticfunc
57; INSTLIMDEF-DAG: %call = call i32 @staticfunc.llvm.
58; INSTLIMDEF-DAG: define available_externally hidden i32 @staticfunc.llvm.{{.*}} !thinlto_src_module !0 {
59
60; INSTLIMDEF-DAG: Import referenceglobals
61; CHECK-DAG: define available_externally i32 @referenceglobals(i32 %i) !thinlto_src_module !0 {
62declare i32 @referenceglobals(...) #1
63
64; The import of referenceglobals will expose call to globalfunc1 that
65; should in turn be imported.
66; INSTLIMDEF-DAG: Import globalfunc1
67; CHECK-DAG: define available_externally void @globalfunc1() !thinlto_src_module !0
68
69; INSTLIMDEF-DAG: Import referencecommon
70; CHECK-DAG: define available_externally i32 @referencecommon(i32 %i) !thinlto_src_module !0 {
71declare i32 @referencecommon(...) #1
72
73; INSTLIMDEF-DAG: Import setfuncptr
74; CHECK-DAG: define available_externally void @setfuncptr() !thinlto_src_module !0 {
75declare void @setfuncptr(...) #1
76
77; INSTLIMDEF-DAG: Import callfuncptr
78; CHECK-DAG: define available_externally void @callfuncptr() !thinlto_src_module !0 {
79declare void @callfuncptr(...) #1
80
81; Ensure that all uses of local variable @P which has used in setfuncptr
82; and callfuncptr are to the same promoted/renamed global.
83; CHECK-DAG: @P.llvm.{{.*}} = external hidden global void ()*
84; CHECK-DAG: %0 = load void ()*, void ()** @P.llvm.
85; CHECK-DAG: store void ()* @staticfunc2.llvm.{{.*}}, void ()** @P.llvm.
86
87; Ensure that @referencelargelinkonce definition is pulled in, but later we
88; also check that the linkonceodr function is not.
89; CHECK-DAG: define available_externally void @referencelargelinkonce() !thinlto_src_module !0 {
90; INSTLIM5-DAG: declare void @linkonceodr()
91declare void @referencelargelinkonce(...)
92
93; Won't import weak func
94; CHECK-DAG: declare void @weakfunc(...)
95declare void @weakfunc(...) #1
96
97; Won't import linkonce func
98; CHECK-DAG: declare void @linkoncefunc2(...)
99declare void @linkoncefunc2(...) #1
100
101; INSTLIMDEF-DAG: Import funcwithpersonality
102; INSTLIMDEF-DAG: define available_externally hidden void @funcwithpersonality.llvm.{{.*}}() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) !thinlto_src_module !0 {
103; INSTLIM5-DAG: declare hidden void @funcwithpersonality.llvm.{{.*}}()
104
105; CHECK-DAG: declare void @variadic(...)
106declare void @variadic(...)
107
108; INSTLIMDEF-DAG: Import globalfunc2
109; INSTLIMDEF-DAG: 13 function-import - Number of functions imported
110; CHECK-DAG: !0 = !{!"{{.*}}/Inputs/funcimport.ll"}
111
112; The actual GUID values will depend on path to test.
113; GUID-DAG: GUID {{.*}} is weakalias
114; GUID-DAG: GUID {{.*}} is referenceglobals
115; GUID-DAG: GUID {{.*}} is weakfunc
116; GUID-DAG: GUID {{.*}} is main
117; GUID-DAG: GUID {{.*}} is referencecommon
118; GUID-DAG: GUID {{.*}} is analias
119; GUID-DAG: GUID {{.*}} is referencestatics
120; GUID-DAG: GUID {{.*}} is linkoncealias
121; GUID-DAG: GUID {{.*}} is setfuncptr
122; GUID-DAG: GUID {{.*}} is callfuncptr
123; GUID-DAG: GUID {{.*}} is funcwithpersonality
124; GUID-DAG: GUID {{.*}} is setfuncptr
125; GUID-DAG: GUID {{.*}} is staticfunc2
126; GUID-DAG: GUID {{.*}} is __gxx_personality_v0
127; GUID-DAG: GUID {{.*}} is referencestatics
128; GUID-DAG: GUID {{.*}} is globalfunc1
129; GUID-DAG: GUID {{.*}} is globalfunc2
130; GUID-DAG: GUID {{.*}} is P
131; GUID-DAG: GUID {{.*}} is staticvar
132; GUID-DAG: GUID {{.*}} is commonvar
133; GUID-DAG: GUID {{.*}} is weakalias
134; GUID-DAG: GUID {{.*}} is staticfunc
135; GUID-DAG: GUID {{.*}} is weakfunc
136; GUID-DAG: GUID {{.*}} is referenceglobals
137; GUID-DAG: GUID {{.*}} is weakvar
138; GUID-DAG: GUID {{.*}} is staticconstvar
139; GUID-DAG: GUID {{.*}} is analias
140; GUID-DAG: GUID {{.*}} is globalvar
141; GUID-DAG: GUID {{.*}} is referencecommon
142; GUID-DAG: GUID {{.*}} is linkoncealias
143; GUID-DAG: GUID {{.*}} is callfuncptr
144; GUID-DAG: GUID {{.*}} is linkoncefunc
145