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4147326797
This restores commit r268627:
Summary:
When launching ThinLTO backends in a distributed build (currently
supported in gold via the thinlto-index-only plugin option), emit
an individual index file for each backend process as described here:
http://lists.llvm.org/pipermail/llvm-dev/2016-April/098272.html
...
Differential Revision: http://reviews.llvm.org/D19556
Address msan failures by avoiding std::prev on map.end(), the
theory is that this is causing issues due to some known UB problems
in __tree.
llvm-svn: 269059
48 lines
2.2 KiB
LLVM
48 lines
2.2 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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; 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-NEXT: <COMBINED
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; BACKEND1-NEXT: <COMBINED
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; BACKEND1-NEXT: </GLOBALVAL_SUMMARY_BLOCK
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; BACKEND1-NEXT: <VALUE_SYMTAB
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; Check that the format is: op0=valueid, op1=offset, op2=funcguid,
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; where funcguid is the lower 64 bits of the function name MD5.
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; BACKEND1-NEXT: <COMBINED_ENTRY abbrevid={{[0-9]+}} op0={{1|2}} op1={{-3706093650706652785|-5300342847281564238}}
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; BACKEND1-NEXT: <COMBINED_ENTRY abbrevid={{[0-9]+}} op0={{1|2}} op1={{-3706093650706652785|-5300342847281564238}}
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; BACKEND1-NEXT: </VALUE_SYMTAB
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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-NEXT: <COMBINED
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; BACKEND2-NEXT: </GLOBALVAL_SUMMARY_BLOCK
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; BACKEND2-NEXT: <VALUE_SYMTAB
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; Check that the format is: op0=valueid, op1=offset, op2=funcguid,
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; where funcguid is the lower 64 bits of the function name MD5.
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; BACKEND2-NEXT: <COMBINED_ENTRY abbrevid={{[0-9]+}} op0=1 op1=-5300342847281564238
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; BACKEND2-NEXT: </VALUE_SYMTAB
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declare void @g(...)
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define void @f() {
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entry:
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call void (...) @g()
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ret void
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}
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