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-action=thinlink -o %t3.bc %t.bc %t2.bc
5
6; Ensure statics are promoted/renamed correctly from this file (all but
7; constant variable need promotion).
8; RUN: llvm-lto -thinlto-action=promote %t.bc -thinlto-index=%t3.bc -o - | llvm-dis -o - | FileCheck %s --check-prefix=EXPORTSTATIC
9; EXPORTSTATIC-DAG: @staticvar.llvm.0 = hidden global
10; EXPORTSTATIC-DAG: @staticconstvar = internal unnamed_addr constant
11; EXPORTSTATIC-DAG: @P.llvm.0 = hidden global void ()* null
12; EXPORTSTATIC-DAG: define hidden i32 @staticfunc.llvm.0
13; EXPORTSTATIC-DAG: define hidden void @staticfunc2.llvm.0
14
15; Ensure that both weak alias to an imported function and strong alias to a
16; non-imported function are correctly turned into declarations.
17; Also ensures that alias to a linkonce function is turned into a declaration
18; and that the associated linkonce function is not in the output, as it is
19; lazily linked and never referenced/materialized.
20; RUN: llvm-lto -thinlto-action=import %t2.bc -thinlto-index=%t3.bc -o - | llvm-dis -o - | FileCheck %s --check-prefix=IMPORTGLOB1
21; IMPORTGLOB1-DAG: define available_externally void @globalfunc1
22; IMPORTGLOB1-DAG: declare void @weakalias
23; IMPORTGLOB1-DAG: declare void @analias
24; IMPORTGLOB1-NOT: @linkoncealias
25; IMPORTGLOB1-NOT: @linkoncefunc
26; IMPORTGLOB1-NOT: declare void @globalfunc2
27
28; Verify that the optimizer run
29; RUN: llvm-lto -thinlto-action=optimize %t2.bc -o - | llvm-dis -o - | FileCheck %s --check-prefix=OPTIMIZED
30; OPTIMIZED: define i32 @main()
31
32; Verify that the codegen run
33; RUN: llvm-lto -thinlto-action=codegen %t2.bc -o - | llvm-nm -o - | FileCheck %s --check-prefix=CODEGEN
34; CODEGEN: T _main
35
36; Verify that all run together
37; RUN: llvm-lto -thinlto-action=run %t2.bc  %t.bc
38; RUN: llvm-nm -o - < %t.bc.thinlto.o | FileCheck %s --check-prefix=ALL
39; RUN: llvm-nm -o - < %t2.bc.thinlto.o | FileCheck %s --check-prefix=ALL2
40; ALL: T _callfuncptr
41; ALL2: T _main
42
43target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
44target triple = "x86_64-apple-macosx10.11.0"
45
46@globalvar_in_section = global i32 1, align 4
47@globalvar = global i32 1, align 4
48@staticvar = internal global i32 1, align 4
49@staticvar2 = internal global i32 1, align 4
50@staticconstvar = internal unnamed_addr constant [2 x i32] [i32 10, i32 20], align 4
51@commonvar = common global i32 0, align 4
52@P = internal global void ()* null, align 8
53
54@weakalias = weak alias void (...), bitcast (void ()* @globalfunc1 to void (...)*)
55@analias = alias void (...), bitcast (void ()* @globalfunc2 to void (...)*)
56@linkoncealias = alias void (...), bitcast (void ()* @linkoncefunc to void (...)*)
57
58define void @globalfunc1() #0 {
59entry:
60  ret void
61}
62
63define void @globalfunc2() #0 {
64entry:
65  ret void
66}
67
68define linkonce_odr void @linkoncefunc() #0 {
69entry:
70  ret void
71}
72
73define i32 @referencestatics(i32 %i) #0 {
74entry:
75  %i.addr = alloca i32, align 4
76  store i32 %i, i32* %i.addr, align 4
77  %call = call i32 @staticfunc()
78  %0 = load i32, i32* @staticvar, align 4
79  %add = add nsw i32 %call, %0
80  %1 = load i32, i32* %i.addr, align 4
81  %idxprom = sext i32 %1 to i64
82  %arrayidx = getelementptr inbounds [2 x i32], [2 x i32]* @staticconstvar, i64 0, i64 %idxprom
83  %2 = load i32, i32* %arrayidx, align 4
84  %add1 = add nsw i32 %add, %2
85  ret i32 %add1
86}
87
88define i32 @referenceglobals(i32 %i) #0 {
89entry:
90  %i.addr = alloca i32, align 4
91  store i32 %i, i32* %i.addr, align 4
92  call void @globalfunc1()
93  %0 = load i32, i32* @globalvar, align 4
94  ret i32 %0
95}
96
97define i32 @referencecommon(i32 %i) #0 {
98entry:
99  %i.addr = alloca i32, align 4
100  store i32 %i, i32* %i.addr, align 4
101  %0 = load i32, i32* @commonvar, align 4
102  ret i32 %0
103}
104
105define void @setfuncptr() #0 {
106entry:
107  store void ()* @staticfunc2, void ()** @P, align 8
108  ret void
109}
110
111define void @callfuncptr() #0 {
112entry:
113  %0 = load void ()*, void ()** @P, align 8
114  call void %0()
115  ret void
116}
117
118@weakvar = weak global i32 1, align 4
119define weak void @weakfunc() #0 {
120entry:
121  ret void
122}
123
124define void @callweakfunc() #0 {
125entry:
126  call void @weakfunc()
127  ret void
128}
129
130define internal i32 @staticfunc() #0 {
131entry:
132  ret i32 1
133}
134
135define internal void @staticfunc2() #0 {
136entry:
137  %0 = load i32, i32* @staticvar2, align 4
138  ret void
139}
140