xref: /llvm-project/llvm/test/LTO/Resolution/X86/dead-strip-fulllto.ll (revision 32ab405717ecb92041d8f753a1ccd0e5dd874cb7) 
1; RUN: opt -module-summary -o %t %s
2; RUN: opt -module-summary -o %t2 %S/Inputs/dead-strip-fulllto.ll
3
4; Adding '--pass-remarks-with-hotness' should not cause crash.
5; RUN: llvm-lto2 run --pass-remarks-output=%t4.yaml --pass-remarks-filter=. --pass-remarks-with-hotness \
6; RUN:               %t -r %t,main,px -r %t,live1, -r %t,live2,p -r %t,dead2,p \
7; RUN:               %t2 -r %t2,live1,p -r %t2,live2, -r %t2,dead1,p -r %t2,dead2, -r %t2,odr, \
8; RUN:               -save-temps -o %t3
9
10; RUN: cat %t4.yaml | FileCheck %s -check-prefix=REMARK
11; RUN: llvm-nm %t3.0 | FileCheck --check-prefix=FULL %s
12; RUN: llvm-nm %t3.1 | FileCheck --check-prefix=THIN %s
13
14; RUN: llvm-lto2 run %t -r %t,main,px -r %t,live1, -r %t,live2,p -r %t,dead2,p \
15; RUN:               %t2 -r %t2,live1,p -r %t2,live2, -r %t2,dead1,p -r %t2,dead2, -r %t2,odr, \
16; RUN:               -save-temps -o %t3 -O0
17; RUN: llvm-nm %t3.0 | FileCheck --check-prefix=FULL %s
18; RUN: llvm-nm %t3.1 | FileCheck --check-prefix=THIN %s
19
20; REMARK:      Pass:            lto
21; REMARK-NEXT: Name:            deadfunction
22; REMARK-NEXT: DebugLoc:        { File: test.c, Line: 4, Column: 0 }
23; REMARK-NEXT: Function:        dead2
24; REMARK-NEXT: Args:
25; REMARK-NEXT:   - Function:        dead2
26; REMARK-NEXT:     DebugLoc:        { File: test.c, Line: 4, Column: 0 }
27; REMARK-NEXT:   - String:          ' not added to the combined module '
28
29; FULL-NOT: dead
30; FULL: U live1
31; FULL: T live2
32; FULL: T main
33
34; THIN-NOT: dead
35; THIN: T live1
36; THIN: U live2
37; THIN-NOT: odr
38
39target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
40target triple = "x86_64-unknown-linux-gnu"
41
42define void @main() {
43  call void @live1()
44  ret void
45}
46
47declare void @live1()
48
49define void @live2() {
50  ret void
51}
52
53define void @dead2() !dbg !7 {
54  ret void
55}
56
57!llvm.dbg.cu = !{!0}
58!llvm.module.flags = !{!3, !4, !5}
59
60!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, isOptimized: false, emissionKind: LineTablesOnly, enums: !2)
61!1 = !DIFile(filename: "test.c", directory: "/")
62!2 = !{}
63!3 = !{i32 2, !"Dwarf Version", i32 2}
64!4 = !{i32 2, !"Debug Info Version", i32 3}
65!5 = !{i32 1, !"ThinLTO", i32 0}
66!7 = distinct !DISubprogram(name: "dead2", scope: !1, file: !1, line: 4, type: !8, isLocal: false, isDefinition: true, scopeLine: 4, isOptimized: false, unit: !0, retainedNodes: !2)
67!8 = !DISubroutineType(types: !2)
68