| ; Checks if indirect calls to static target functions that are actually |
| ; dead in the new binary target (due to a profile collected from a slightly |
| ; different binary) are properly traversed during ThinLTO liveness analysis. |
| ; If the liveness analysis is changed to ignore indirect edges and the |
| ; importer is changed to check liveness before importing, this test will |
| ; need adjustment (in that case _ZL3foov should not be imported/promoted, |
| ; and _ZL3barv can be internalized/removed). |
| |
| ; REQUIRES: x86-registered-target |
| |
| ; Do setup work for all below tests: generate bitcode and combined index |
| ; RUN: opt -module-summary %s -o %t.bc |
| ; RUN: opt -module-summary %p/Inputs/thinlto_samplepgo_icp2a.ll -o %t2a.bc |
| ; RUN: opt -module-summary %p/Inputs/thinlto_samplepgo_icp2b.ll -o %t2b.bc |
| |
| ; Use -import-instr-limit=5 so that we don't import _ZL3barv, which would |
| ; hide the problem. |
| ; RUN: llvm-lto2 run -save-temps -import-instr-limit=5 -o %t3 %t.bc %t2a.bc %t2b.bc -r %t.bc,fptr,plx -r %t.bc,main,plx -r %t2a.bc,_ZL3barv,l -r %t2b.bc,_ZL3barv,pl -print-imports 2>&1 | FileCheck %s --check-prefix=IMPORTS2 |
| ; IMPORTS2-NOT: Import _ZL3barv |
| ; IMPORTS2: Import _ZL3foov.llvm.0 |
| ; IMPORTS2-NOT: Import _ZL3barv |
| ; RUN: llvm-nm %t3.2 | FileCheck %s --check-prefix=NM |
| ; NM: _ZL3barv |
| ; RUN: llvm-dis < %t3.3.2.internalize.bc | FileCheck %s --check-prefix=INTERNALIZE |
| ; INTERNALIZE: define dso_local void @_ZL3barv |
| |
| target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| @fptr = local_unnamed_addr global ptr null, align 8 |
| |
| ; Function Attrs: norecurse uwtable |
| define i32 @main() local_unnamed_addr #0 !prof !34 { |
| entry: |
| %0 = load ptr, ptr @fptr, align 8 |
| ; ICALL-PROM: br i1 %{{[0-9]+}}, label %if.true.direct_targ, label %if.false.orig_indirect |
| tail call void %0(), !prof !40 |
| ret i32 0 |
| } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3,!4} |
| !llvm.ident = !{!31} |
| |
| !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) |
| !1 = !DIFile(filename: "main.cc", directory: ".") |
| !2 = !{} |
| !3 = !{i32 2, !"Debug Info Version", i32 3} |
| !4 = !{i32 1, !"ProfileSummary", !5} |
| !5 = !{!6, !7, !8, !9, !10, !11, !12, !13} |
| !6 = !{!"ProfileFormat", !"SampleProfile"} |
| !7 = !{!"TotalCount", i64 3003} |
| !8 = !{!"MaxCount", i64 3000} |
| !9 = !{!"MaxInternalCount", i64 0} |
| !10 = !{!"MaxFunctionCount", i64 0} |
| !11 = !{!"NumCounts", i64 3} |
| !12 = !{!"NumFunctions", i64 1} |
| !13 = !{!"DetailedSummary", !14} |
| !14 = !{!15, !16, !17, !18, !19, !20, !20, !21, !21, !22, !23, !24, !25, !26, !27, !28, !29, !30} |
| !15 = !{i32 10000, i64 3000, i32 1} |
| !16 = !{i32 100000, i64 3000, i32 1} |
| !17 = !{i32 200000, i64 3000, i32 1} |
| !18 = !{i32 300000, i64 3000, i32 1} |
| !19 = !{i32 400000, i64 3000, i32 1} |
| !20 = !{i32 500000, i64 3000, i32 1} |
| !21 = !{i32 600000, i64 3000, i32 1} |
| !22 = !{i32 700000, i64 3000, i32 1} |
| !23 = !{i32 800000, i64 3000, i32 1} |
| !24 = !{i32 900000, i64 3000, i32 1} |
| !25 = !{i32 950000, i64 3000, i32 1} |
| !26 = !{i32 990000, i64 3000, i32 1} |
| !27 = !{i32 999000, i64 3000, i32 1} |
| !28 = !{i32 999900, i64 2, i32 2} |
| !29 = !{i32 999990, i64 2, i32 2} |
| !30 = !{i32 999999, i64 2, i32 2} |
| !31 = !{!"clang version 5.0.0 (trunk 297016)"} |
| !34 = !{!"function_entry_count", i64 1} |
| !40 = !{!"VP", i32 0, i64 3000, i64 -8789629626369651636, i64 3000} |