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 -disable-force-link-odr -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 -disable-force-link-odr -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 -disable-force-link-odr -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; Test import with smaller instruction limit and without the -disable-force-link-odr
18; RUN: opt -function-import -summary-file %t3.thinlto.bc %t.bc -import-instr-limit=5 -S | FileCheck %s --check-prefix=INSTLIM5ODR
19; INSTLIM5ODR: define linkonce_odr void @linkonceodr() {
20
21
22define i32 @main() #0 {
23entry:
24  call void (...) @weakalias()
25  call void (...) @analias()
26  call void (...) @linkoncealias()
27  %call = call i32 (...) @referencestatics()
28  %call1 = call i32 (...) @referenceglobals()
29  %call2 = call i32 (...) @referencecommon()
30  call void (...) @setfuncptr()
31  call void (...) @callfuncptr()
32  call void (...) @weakfunc()
33  call void (...) @linkoncefunc2()
34  call void (...) @referencelargelinkonce()
35  ret i32 0
36}
37
38; Won't import weak alias
39; CHECK-DAG: declare void @weakalias
40declare void @weakalias(...) #1
41
42; Cannot create an alias to available_externally
43; CHECK-DAG: declare void @analias
44declare void @analias(...) #1
45
46; FIXME: Add this checking back when follow on fix to add alias summary
47; records is committed.
48; Aliases import the aliasee function
49declare void @linkoncealias(...) #1
50
51; INSTLIMDEF-DAG: Import referencestatics
52; INSTLIMDEF-DAG: define available_externally i32 @referencestatics(i32 %i) !thinlto_src_module !0 {
53; INSTLIM5-DAG: declare i32 @referencestatics(...)
54declare i32 @referencestatics(...) #1
55
56; The import of referencestatics will expose call to staticfunc that
57; should in turn be imported as a promoted/renamed and hidden function.
58; Ensure that the call is to the properly-renamed function.
59; INSTLIMDEF-DAG: Import staticfunc
60; INSTLIMDEF-DAG: %call = call i32 @staticfunc.llvm.
61; INSTLIMDEF-DAG: define available_externally hidden i32 @staticfunc.llvm.{{.*}} !thinlto_src_module !0 {
62
63; INSTLIMDEF-DAG: Import referenceglobals
64; CHECK-DAG: define available_externally i32 @referenceglobals(i32 %i) !thinlto_src_module !0 {
65declare i32 @referenceglobals(...) #1
66
67; The import of referenceglobals will expose call to globalfunc1 that
68; should in turn be imported.
69; INSTLIMDEF-DAG: Import globalfunc1
70; CHECK-DAG: define available_externally void @globalfunc1() !thinlto_src_module !0
71
72; INSTLIMDEF-DAG: Import referencecommon
73; CHECK-DAG: define available_externally i32 @referencecommon(i32 %i) !thinlto_src_module !0 {
74declare i32 @referencecommon(...) #1
75
76; INSTLIMDEF-DAG: Import setfuncptr
77; CHECK-DAG: define available_externally void @setfuncptr() !thinlto_src_module !0 {
78declare void @setfuncptr(...) #1
79
80; INSTLIMDEF-DAG: Import callfuncptr
81; CHECK-DAG: define available_externally void @callfuncptr() !thinlto_src_module !0 {
82declare void @callfuncptr(...) #1
83
84; Ensure that all uses of local variable @P which has used in setfuncptr
85; and callfuncptr are to the same promoted/renamed global.
86; CHECK-DAG: @P.llvm.{{.*}} = external hidden global void ()*
87; CHECK-DAG: %0 = load void ()*, void ()** @P.llvm.
88; CHECK-DAG: store void ()* @staticfunc2.llvm.{{.*}}, void ()** @P.llvm.
89
90; Ensure that @referencelargelinkonce definition is pulled in, but later we
91; also check that the linkonceodr function is not.
92; CHECK-DAG: define available_externally void @referencelargelinkonce() !thinlto_src_module !0 {
93; INSTLIM5-DAG: declare void @linkonceodr()
94declare void @referencelargelinkonce(...)
95
96; Won't import weak func
97; CHECK-DAG: declare void @weakfunc(...)
98declare void @weakfunc(...) #1
99
100; Won't import linkonce func
101; CHECK-DAG: declare void @linkoncefunc2(...)
102declare void @linkoncefunc2(...) #1
103
104; INSTLIMDEF-DAG: Import funcwithpersonality
105; INSTLIMDEF-DAG: define available_externally hidden void @funcwithpersonality.llvm.{{.*}}() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) !thinlto_src_module !0 {
106; INSTLIM5-DAG: declare hidden void @funcwithpersonality.llvm.{{.*}}()
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