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4fc1c31a27
Summary: Reapply r357931 with fixes to ThinLTO testcases and llvm-lto tool. ThinLTOCodeGenerator currently does not preserve llvm.used symbols and it can internalize them. In order to pass the necessary information to the legacy ThinLTOCodeGenerator, the input to the code generator is rewritten to be based on lto::InputFile. Now ThinLTO using the legacy LTO API will requires data layout in Module. "internalize" thinlto action in llvm-lto is updated to run both "promote" and "internalize" with the same configuration as ThinLTOCodeGenerator. The old "promote" + "internalize" option does not produce the same output as ThinLTOCodeGenerator. This fixes: PR41236 rdar://problem/49293439 Reviewers: tejohnson, pcc, kromanova, dexonsmith Reviewed By: tejohnson Subscribers: ormris, bd1976llvm, mehdi_amini, inglorion, eraman, hiraditya, jkorous, dexonsmith, arphaman, dang, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D60421 llvm-svn: 358601
60 lines
2.7 KiB
LLVM
60 lines
2.7 KiB
LLVM
; RUN: opt -module-summary %s -o %t1.bc
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; RUN: opt -module-summary %p/Inputs/distributed_indexes.ll -o %t2.bc
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; RUN: llvm-lto -thinlto-action=thinlink -o %t.index.bc %t1.bc %t2.bc
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; RUN: llvm-lto -thinlto-action=distributedindexes -thinlto-index %t.index.bc %t1.bc %t2.bc
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; RUN: llvm-bcanalyzer -dump %t1.bc.thinlto.bc | FileCheck %s --check-prefix=BACKEND1
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; RUN: llvm-bcanalyzer -dump %t2.bc.thinlto.bc | FileCheck %s --check-prefix=BACKEND2
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; The backend index for this module contains summaries from itself and
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; Inputs/distributed_indexes.ll, as it imports from the latter.
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; We should import @g and alias @analias. While we don't import the aliasee
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; directly (and therefore don't have a third COMBINED record from module
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; id 1), we will have a VALUE_GUID for it (hence the 4 VALUE_GUID entries).
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; BACKEND1: <MODULE_STRTAB_BLOCK
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; BACKEND1-NEXT: <ENTRY {{.*}} record string = '{{.*}}distributed_indexes.ll.tmp{{.*}}.bc'
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; BACKEND1-NEXT: <ENTRY {{.*}} record string = '{{.*}}distributed_indexes.ll.tmp{{.*}}.bc'
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; BACKEND1-NEXT: </MODULE_STRTAB_BLOCK
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; BACKEND1-NEXT: <GLOBALVAL_SUMMARY_BLOCK
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; BACKEND1-NEXT: <VERSION
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; BACKEND1-DAG: <VALUE_GUID op0={{.*}} op1=-5751648690987223394
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; BACKEND1-DAG: <VALUE_GUID op0={{.*}} op1=-5300342847281564238
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; BACKEND1-DAG: <VALUE_GUID op0={{.*}} op1=-3706093650706652785
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; BACKEND1-DAG: <VALUE_GUID op0={{.*}} op1=-1039159065113703048
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; BACKEND1-DAG: <COMBINED {{.*}} op1=0
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; BACKEND1-DAG: <COMBINED {{.*}} op1=1
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; BACKEND1-DAG: <COMBINED_ALIAS {{.*}} op1=1
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; BACKEND1-NEXT: </GLOBALVAL_SUMMARY_BLOCK
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; The backend index for Input/distributed_indexes.ll contains summaries from
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; itself only, as it does not import anything.
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; BACKEND2: <MODULE_STRTAB_BLOCK
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; BACKEND2-NEXT: <ENTRY {{.*}} record string = '{{.*}}distributed_indexes.ll.tmp2.bc'
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; BACKEND2-NEXT: </MODULE_STRTAB_BLOCK
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; BACKEND2-NEXT: <GLOBALVAL_SUMMARY_BLOCK
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; BACKEND2-NEXT: <VERSION
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; BACKEND2-DAG: <VALUE_GUID op0={{.*}} op1=-5751648690987223394/>
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; BACKEND2-DAG: <VALUE_GUID op0={{.*}} op1=-5300342847281564238/>
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; BACKEND2-DAG: <VALUE_GUID op0={{.*}} op1=-1039159065113703048/>
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; BACKEND2-NEXT: <COMBINED
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; BACKEND2-NEXT: <COMBINED
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; BACKEND2-NEXT: <COMBINED_ALIAS
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; BACKEND2-NEXT: </GLOBALVAL_SUMMARY_BLOCK
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; Make sure that when the alias is imported as a copy of the aliasee, but the
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; aliasee is not being imported by itself, that we can still print the summary.
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; The aliasee should be "null".
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; RUN: llvm-dis %t1.bc.thinlto.bc -o - | FileCheck %s --check-prefix=DIS
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; DIS: aliasee: null
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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declare void @g(...)
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declare void @analias(...)
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define void @f() {
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entry:
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call void (...) @g()
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call void (...) @analias()
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ret void
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}
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