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  call void (...) @variadic()
36  ret i32 0
37}
38
39; Won't import weak alias
40; CHECK-DAG: declare void @weakalias
41declare void @weakalias(...) #1
42
43; Cannot create an alias to available_externally
44; CHECK-DAG: declare void @analias
45declare void @analias(...) #1
46
47; FIXME: Add this checking back when follow on fix to add alias summary
48; records is committed.
49; Aliases import the aliasee function
50declare void @linkoncealias(...) #1
51
52; INSTLIMDEF-DAG: Import referencestatics
53; INSTLIMDEF-DAG: define available_externally i32 @referencestatics(i32 %i) !thinlto_src_module !0 {
54; INSTLIM5-DAG: declare i32 @referencestatics(...)
55declare i32 @referencestatics(...) #1
56
57; The import of referencestatics will expose call to staticfunc that
58; should in turn be imported as a promoted/renamed and hidden function.
59; Ensure that the call is to the properly-renamed function.
60; INSTLIMDEF-DAG: Import staticfunc
61; INSTLIMDEF-DAG: %call = call i32 @staticfunc.llvm.
62; INSTLIMDEF-DAG: define available_externally hidden i32 @staticfunc.llvm.{{.*}} !thinlto_src_module !0 {
63
64; INSTLIMDEF-DAG: Import referenceglobals
65; CHECK-DAG: define available_externally i32 @referenceglobals(i32 %i) !thinlto_src_module !0 {
66declare i32 @referenceglobals(...) #1
67
68; The import of referenceglobals will expose call to globalfunc1 that
69; should in turn be imported.
70; INSTLIMDEF-DAG: Import globalfunc1
71; CHECK-DAG: define available_externally void @globalfunc1() !thinlto_src_module !0
72
73; INSTLIMDEF-DAG: Import referencecommon
74; CHECK-DAG: define available_externally i32 @referencecommon(i32 %i) !thinlto_src_module !0 {
75declare i32 @referencecommon(...) #1
76
77; INSTLIMDEF-DAG: Import setfuncptr
78; CHECK-DAG: define available_externally void @setfuncptr() !thinlto_src_module !0 {
79declare void @setfuncptr(...) #1
80
81; INSTLIMDEF-DAG: Import callfuncptr
82; CHECK-DAG: define available_externally void @callfuncptr() !thinlto_src_module !0 {
83declare void @callfuncptr(...) #1
84
85; Ensure that all uses of local variable @P which has used in setfuncptr
86; and callfuncptr are to the same promoted/renamed global.
87; CHECK-DAG: @P.llvm.{{.*}} = external hidden global void ()*
88; CHECK-DAG: %0 = load void ()*, void ()** @P.llvm.
89; CHECK-DAG: store void ()* @staticfunc2.llvm.{{.*}}, void ()** @P.llvm.
90
91; Ensure that @referencelargelinkonce definition is pulled in, but later we
92; also check that the linkonceodr function is not.
93; CHECK-DAG: define available_externally void @referencelargelinkonce() !thinlto_src_module !0 {
94; INSTLIM5-DAG: declare void @linkonceodr()
95declare void @referencelargelinkonce(...)
96
97; Won't import weak func
98; CHECK-DAG: declare void @weakfunc(...)
99declare void @weakfunc(...) #1
100
101; Won't import linkonce func
102; CHECK-DAG: declare void @linkoncefunc2(...)
103declare void @linkoncefunc2(...) #1
104
105; INSTLIMDEF-DAG: Import funcwithpersonality
106; INSTLIMDEF-DAG: define available_externally hidden void @funcwithpersonality.llvm.{{.*}}() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) !thinlto_src_module !0 {
107; INSTLIM5-DAG: declare hidden void @funcwithpersonality.llvm.{{.*}}()
108
109; CHECK-DAG: declare void @variadic(...)
110declare void @variadic(...)
111
112; INSTLIMDEF-DAG: Import globalfunc2
113; INSTLIMDEF-DAG: 13 function-import - Number of functions imported
114; CHECK-DAG: !0 = !{!"{{.*}}/Inputs/funcimport.ll"}
115
116; The actual GUID values will depend on path to test.
117; GUID-DAG: GUID {{.*}} is weakalias
118; GUID-DAG: GUID {{.*}} is referenceglobals
119; GUID-DAG: GUID {{.*}} is weakfunc
120; GUID-DAG: GUID {{.*}} is main
121; GUID-DAG: GUID {{.*}} is referencecommon
122; GUID-DAG: GUID {{.*}} is analias
123; GUID-DAG: GUID {{.*}} is referencestatics
124; GUID-DAG: GUID {{.*}} is linkoncealias
125; GUID-DAG: GUID {{.*}} is setfuncptr
126; GUID-DAG: GUID {{.*}} is callfuncptr
127; GUID-DAG: GUID {{.*}} is funcwithpersonality
128; GUID-DAG: GUID {{.*}} is setfuncptr
129; GUID-DAG: GUID {{.*}} is staticfunc2
130; GUID-DAG: GUID {{.*}} is __gxx_personality_v0
131; GUID-DAG: GUID {{.*}} is referencestatics
132; GUID-DAG: GUID {{.*}} is globalfunc1
133; GUID-DAG: GUID {{.*}} is globalfunc2
134; GUID-DAG: GUID {{.*}} is P
135; GUID-DAG: GUID {{.*}} is staticvar
136; GUID-DAG: GUID {{.*}} is commonvar
137; GUID-DAG: GUID {{.*}} is weakalias
138; GUID-DAG: GUID {{.*}} is staticfunc
139; GUID-DAG: GUID {{.*}} is weakfunc
140; GUID-DAG: GUID {{.*}} is referenceglobals
141; GUID-DAG: GUID {{.*}} is weakvar
142; GUID-DAG: GUID {{.*}} is staticconstvar
143; GUID-DAG: GUID {{.*}} is analias
144; GUID-DAG: GUID {{.*}} is globalvar
145; GUID-DAG: GUID {{.*}} is referencecommon
146; GUID-DAG: GUID {{.*}} is linkoncealias
147; GUID-DAG: GUID {{.*}} is callfuncptr
148; GUID-DAG: GUID {{.*}} is linkoncefunc
149