1 ; REQUIRES: x86-registered-target
3 ; RUN: opt -module-summary %s -o %t.bc
5 ; Tests that with dead stripping in the thin link enabled (default), we do not
6 ; promote to target of the dropped dead symbol _ZL3foov. This can happen with a
7 ; sample profile collected for one binary used to optimize for another binary.
8 ; RUN: llvm-lto2 run -save-temps -o %t2 %t.bc -r %t.bc,fptr,plx \
9 ; RUN: -r %t.bc,main,plx -r %t.bc,_ZL3foov,l
10 ; RUN: llvm-dis < %t2.1.4.opt.bc | FileCheck %s --check-prefix=OPT
11 ; RUN: llvm-lto2 run -save-temps -o %t2 %t.bc -r %t.bc,fptr,plx \
12 ; RUN: -r %t.bc,main,plx -r %t.bc,_ZL3foov,l -compute-dead=false
13 ; RUN: llvm-dis < %t2.1.4.opt.bc | FileCheck %s --check-prefix=OPT-NODEAD
15 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
16 target triple = "x86_64-unknown-linux-gnu"
18 @fptr = local_unnamed_addr global void ()* null, align 8
20 define void @_ZL3foov() #1 {
25 define i32 @main() local_unnamed_addr #0 !prof !34 {
27 %0 = load void ()*, void ()** @fptr, align 8
28 ; OPT-NOT: label %if.false.orig_indirect
29 ; OPT-NODEAD: br i1 %{{[0-9]+}}, label %if.end.icp, label %if.false.orig_indirect
30 tail call void %0(), !prof !40
35 !llvm.module.flags = !{!3,!4}
38 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 5.0.0 (trunk 297016)", isOptimized: true, runtimeVersion: 0, emissionKind: NoDebug, enums: !2)
39 !1 = !DIFile(filename: "main.cc", directory: ".")
41 !3 = !{i32 2, !"Debug Info Version", i32 3}
42 !4 = !{i32 1, !"ProfileSummary", !5}
43 !5 = !{!6, !7, !8, !9, !10, !11, !12, !13}
44 !6 = !{!"ProfileFormat", !"SampleProfile"}
45 !7 = !{!"TotalCount", i64 3003}
46 !8 = !{!"MaxCount", i64 3000}
47 !9 = !{!"MaxInternalCount", i64 0}
48 !10 = !{!"MaxFunctionCount", i64 0}
49 !11 = !{!"NumCounts", i64 3}
50 !12 = !{!"NumFunctions", i64 1}
51 !13 = !{!"DetailedSummary", !14}
52 !14 = !{!15, !16, !17, !18, !19, !20, !20, !21, !21, !22, !23, !24, !25, !26, !27, !28, !29, !30}
53 !15 = !{i32 10000, i64 3000, i32 1}
54 !16 = !{i32 100000, i64 3000, i32 1}
55 !17 = !{i32 200000, i64 3000, i32 1}
56 !18 = !{i32 300000, i64 3000, i32 1}
57 !19 = !{i32 400000, i64 3000, i32 1}
58 !20 = !{i32 500000, i64 3000, i32 1}
59 !21 = !{i32 600000, i64 3000, i32 1}
60 !22 = !{i32 700000, i64 3000, i32 1}
61 !23 = !{i32 800000, i64 3000, i32 1}
62 !24 = !{i32 900000, i64 3000, i32 1}
63 !25 = !{i32 950000, i64 3000, i32 1}
64 !26 = !{i32 990000, i64 3000, i32 1}
65 !27 = !{i32 999000, i64 3000, i32 1}
66 !28 = !{i32 999900, i64 2, i32 2}
67 !29 = !{i32 999990, i64 2, i32 2}
68 !30 = !{i32 999999, i64 2, i32 2}
69 !31 = !{!"clang version 5.0.0 (trunk 297016)"}
70 !34 = !{!"function_entry_count", i64 1}
71 !40 = !{!"VP", i32 0, i64 3000, i64 -8789629626369651636, i64 3000}