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