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
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 ; RUN: opt -passes='function-import' -debug-only=function-import -enable-import-metadata -summary-file %t3.thinlto.bc %t.bc -S 2>&1 | FileCheck %s --check-prefix=DUMP
11 ; "-stats" and "-debug-only" require +Asserts.
14 ; Test import with smaller instruction limit
15 ; 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
16 ; INSTLIM5-NOT: @staticfunc.llvm.
19 define i32 @main() #0 {
21 call void (...) @weakalias()
22 call void (...) @analias()
23 call void (...) @linkoncealias()
24 %call = call i32 (...) @referencestatics()
25 %call1 = call i32 (...) @referenceglobals()
26 %call2 = call i32 (...) @referencecommon()
27 call void (...) @setfuncptr()
28 call void (...) @callfuncptr()
29 call void (...) @weakfunc()
30 call void (...) @linkoncefunc2()
31 call void (...) @referencelargelinkonce()
32 call void (...) @variadic_no_va_start()
33 call void (...) @variadic_va_start()
37 ; Won't import weak alias
38 ; CHECK-DAG: declare void @weakalias
39 declare void @weakalias(...) #1
41 ; External alias imported as available_externally copy of aliasee
42 ; CHECK-DAG: define available_externally void @analias
43 declare void @analias(...) #1
45 ; External alias imported as available_externally copy of aliasee
46 ; (linkoncealias is an external alias to a linkonce_odr)
47 declare void @linkoncealias(...) #1
48 ; CHECK-DAG: define available_externally void @linkoncealias()
50 ; INSTLIMDEF-DAG: Import referencestatics
51 ; INSTLIMDEF-DAG: define available_externally i32 @referencestatics(i32 %i) !thinlto_src_module !0 {
52 ; INSTLIM5-DAG: declare i32 @referencestatics(...)
53 declare i32 @referencestatics(...) #1
55 ; The import of referencestatics will expose call to staticfunc that
56 ; should in turn be imported as a promoted/renamed and hidden function.
57 ; Ensure that the call is to the properly-renamed function.
58 ; INSTLIMDEF-DAG: Import staticfunc
59 ; INSTLIMDEF-DAG: %call = call i32 @staticfunc.llvm.
60 ; INSTLIMDEF-DAG: define available_externally hidden i32 @staticfunc.llvm.{{.*}} !thinlto_src_module !0 {
62 ; INSTLIMDEF-DAG: Import referenceglobals
63 ; CHECK-DAG: define available_externally i32 @referenceglobals(i32 %i) !thinlto_src_module !0 {
64 declare i32 @referenceglobals(...) #1
66 ; The import of referenceglobals will expose call to globalfunc1 that
67 ; should in turn be imported.
68 ; INSTLIMDEF-DAG: Import globalfunc1
69 ; CHECK-DAG: define available_externally void @globalfunc1() !thinlto_src_module !0
71 ; INSTLIMDEF-DAG: Import referencecommon
72 ; CHECK-DAG: define available_externally i32 @referencecommon(i32 %i) !thinlto_src_module !0 {
73 declare i32 @referencecommon(...) #1
75 ; INSTLIMDEF-DAG: Import setfuncptr
76 ; CHECK-DAG: define available_externally void @setfuncptr() !thinlto_src_module !0 {
77 declare void @setfuncptr(...) #1
79 ; INSTLIMDEF-DAG: Import callfuncptr
80 ; CHECK-DAG: define available_externally void @callfuncptr() !thinlto_src_module !0 {
81 declare void @callfuncptr(...) #1
83 ; Ensure that all uses of local variable @P which has used in setfuncptr
84 ; and callfuncptr are to the same promoted/renamed global.
85 ; CHECK-DAG: @P.llvm.{{.*}} = available_externally hidden global void ()* null
86 ; CHECK-DAG: %0 = load void ()*, void ()** @P.llvm.
87 ; CHECK-DAG: store void ()* @staticfunc2.llvm.{{.*}}, void ()** @P.llvm.
89 ; Ensure that @referencelargelinkonce definition is pulled in, but later we
90 ; also check that the linkonceodr function is not.
91 ; CHECK-DAG: define available_externally void @referencelargelinkonce() !thinlto_src_module !0 {
92 ; INSTLIM5-DAG: declare void @linkonceodr()
93 declare void @referencelargelinkonce(...)
95 ; Won't import weak func
96 ; CHECK-DAG: declare void @weakfunc(...)
97 declare void @weakfunc(...) #1
99 ; Won't import linkonce func
100 ; CHECK-DAG: declare void @linkoncefunc2(...)
101 declare void @linkoncefunc2(...) #1
103 ; INSTLIMDEF-DAG: Import funcwithpersonality
104 ; INSTLIMDEF-DAG: define available_externally hidden void @funcwithpersonality.llvm.{{.*}}() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) !thinlto_src_module !0 {
105 ; INSTLIM5-DAG: declare hidden void @funcwithpersonality.llvm.{{.*}}()
107 ; We can import variadic functions without a va_start, since the inliner
109 ; INSTLIMDEF-DAG: Import variadic_no_va_start
110 ; CHECK-DAG: define available_externally void @variadic_no_va_start(...) !thinlto_src_module !0 {
111 declare void @variadic_no_va_start(...)
113 ; We can import variadic functions with a va_start, since the inliner
114 ; can sometimes handle them.
115 ; CHECK-DAG: define available_externally void @variadic_va_start(...)
116 declare void @variadic_va_start(...)
118 ; INSTLIMDEF-DAG: Import globalfunc2
119 ; INSTLIMDEF-DAG: 15 function-import - Number of functions imported
120 ; INSTLIMDEF-DAG: 4 function-import - Number of global variables imported
122 ; CHECK-DAG: !0 = !{!"{{.*}}/Inputs/funcimport.ll"}
124 ; The actual GUID values will depend on path to test.
125 ; GUID-DAG: GUID {{.*}} is weakalias
126 ; GUID-DAG: GUID {{.*}} is referenceglobals
127 ; GUID-DAG: GUID {{.*}} is weakfunc
128 ; GUID-DAG: GUID {{.*}} is main
129 ; GUID-DAG: GUID {{.*}} is referencecommon
130 ; GUID-DAG: GUID {{.*}} is analias
131 ; GUID-DAG: GUID {{.*}} is referencestatics
132 ; GUID-DAG: GUID {{.*}} is linkoncealias
133 ; GUID-DAG: GUID {{.*}} is setfuncptr
134 ; GUID-DAG: GUID {{.*}} is callfuncptr
135 ; GUID-DAG: GUID {{.*}} is funcwithpersonality
136 ; GUID-DAG: GUID {{.*}} is setfuncptr
137 ; GUID-DAG: GUID {{.*}} is staticfunc2
138 ; GUID-DAG: GUID {{.*}} is __gxx_personality_v0
139 ; GUID-DAG: GUID {{.*}} is referencestatics
140 ; GUID-DAG: GUID {{.*}} is globalfunc1
141 ; GUID-DAG: GUID {{.*}} is globalfunc2
142 ; GUID-DAG: GUID {{.*}} is P
143 ; GUID-DAG: GUID {{.*}} is staticvar
144 ; GUID-DAG: GUID {{.*}} is commonvar
145 ; GUID-DAG: GUID {{.*}} is weakalias
146 ; GUID-DAG: GUID {{.*}} is staticfunc
147 ; GUID-DAG: GUID {{.*}} is weakfunc
148 ; GUID-DAG: GUID {{.*}} is referenceglobals
149 ; GUID-DAG: GUID {{.*}} is weakvar
150 ; GUID-DAG: GUID {{.*}} is staticconstvar
151 ; GUID-DAG: GUID {{.*}} is analias
152 ; GUID-DAG: GUID {{.*}} is globalvar
153 ; GUID-DAG: GUID {{.*}} is referencecommon
154 ; GUID-DAG: GUID {{.*}} is linkoncealias
155 ; GUID-DAG: GUID {{.*}} is callfuncptr
156 ; GUID-DAG: GUID {{.*}} is linkoncefunc
158 ; DUMP: Module [[M1:.*]] imports from 1 module
159 ; DUMP-NEXT: 15 functions imported from [[M2:.*]]
160 ; DUMP-NEXT: 4 vars imported from [[M2]]
161 ; DUMP: Imported 15 functions for Module [[M1]]
162 ; DUMP-NEXT: Imported 4 global variables for Module [[M1]]