1958083d35
Summary: SamplePGO indirect call profiles record the target as the original GUID for statics. The importer had special handling to map to the normal GUID in that case. The dead global analysis needs the same treatment or inconsistencies arise, resulting in linker unsats due to some dead symbols being exported and kept, leaving in references to other dead symbols that are removed. This can happen when a SamplePGO profile collected by one binary is used for a different binary, so the indirect call profiles may not accurately reflect live targets. Reviewers: danielcdh Subscribers: mehdi_amini, inglorion, llvm-commits, eraman Differential Revision: https://reviews.llvm.org/D37783 llvm-svn: 313151
22 lines
692 B
LLVM
22 lines
692 B
LLVM
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; Function Attrs: norecurse nounwind readnone uwtable
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define internal void @_ZL3foov() #1 {
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entry:
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call void @_ZL3barv()
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ret void
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}
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declare void @_ZL3barv()
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3}
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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: "b.cc", directory: "/ssd/llvm/abc/small")
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!2 = !{}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!31 = !{!"clang version 5.0.0 (trunk 297016)"}
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