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llvm-project/llvm/test/ThinLTO/X86/distributed_indexes.ll

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Restore "[ThinLTO] Emit individual index files for distributed backends" 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
2016-05-10 21:48:23 +08:00
; RUN: opt -module-summary %s -o %t1.bc
; RUN: opt -module-summary %p/Inputs/distributed_indexes.ll -o %t2.bc
; RUN: llvm-lto -thinlto-action=thinlink -o %t.index.bc %t1.bc %t2.bc
; RUN: llvm-lto -thinlto-action=distributedindexes -thinlto-index %t.index.bc %t1.bc %t2.bc
; RUN: llvm-bcanalyzer -dump %t1.bc.thinlto.bc | FileCheck %s --check-prefix=BACKEND1
; RUN: llvm-bcanalyzer -dump %t2.bc.thinlto.bc | FileCheck %s --check-prefix=BACKEND2
; The backend index for this module contains summaries from itself and
; Inputs/distributed_indexes.ll, as it imports from the latter.
[ThinLTO] Enable importing of aliases as copy of aliasee Summary: This implements a missing feature to allow importing of aliases, which was previously disabled because alias cannot be available_externally. We instead import an alias as a copy of its aliasee. Some additional work was required in the IndexBitcodeWriter for the distributed build case, to ensure that the aliasee has a value id in the distributed index file (i.e. even when it is not being imported directly). This is a performance win in codes that have many aliases, e.g. C++ applications that have many constructor and destructor aliases. Reviewers: pcc Subscribers: mehdi_amini, inglorion, eraman, llvm-commits Differential Revision: https://reviews.llvm.org/D40747 llvm-svn: 320895
2017-12-16 08:18:12 +08:00
; We should import @g and alias @analias. While we don't import the aliasee
; directly (and therefore don't have a third COMBINED record from module
; id 1), we will have a VALUE_GUID for it (hence the 4 VALUE_GUID entries).
Restore "[ThinLTO] Emit individual index files for distributed backends" 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
2016-05-10 21:48:23 +08:00
; BACKEND1: <MODULE_STRTAB_BLOCK
; BACKEND1-NEXT: <ENTRY {{.*}} record string = '{{.*}}distributed_indexes.ll.tmp{{.*}}.bc'
; BACKEND1-NEXT: <ENTRY {{.*}} record string = '{{.*}}distributed_indexes.ll.tmp{{.*}}.bc'
; BACKEND1-NEXT: </MODULE_STRTAB_BLOCK
; BACKEND1-NEXT: <GLOBALVAL_SUMMARY_BLOCK
; BACKEND1-NEXT: <VERSION
[ThinLTO] Make distributed indexes test more robust Modify test so that it passes in the reverse-iteration bot. We use DenseMap instead of std::map for the summaries to emit into distributed index files. The iteration order is not defined, but it is deterministic, which is good enough. llvm-svn: 321000
2017-12-19 02:00:32 +08:00
; BACKEND1-DAG: <VALUE_GUID op0={{.*}} op1=-5751648690987223394
; BACKEND1-DAG: <VALUE_GUID op0={{.*}} op1=-5300342847281564238
; BACKEND1-DAG: <VALUE_GUID op0={{.*}} op1=-3706093650706652785
; BACKEND1-DAG: <VALUE_GUID op0={{.*}} op1=-1039159065113703048
[ThinLTO] Enable importing of aliases as copy of aliasee Summary: This implements a missing feature to allow importing of aliases, which was previously disabled because alias cannot be available_externally. We instead import an alias as a copy of its aliasee. Some additional work was required in the IndexBitcodeWriter for the distributed build case, to ensure that the aliasee has a value id in the distributed index file (i.e. even when it is not being imported directly). This is a performance win in codes that have many aliases, e.g. C++ applications that have many constructor and destructor aliases. Reviewers: pcc Subscribers: mehdi_amini, inglorion, eraman, llvm-commits Differential Revision: https://reviews.llvm.org/D40747 llvm-svn: 320895
2017-12-16 08:18:12 +08:00
; BACKEND1-DAG: <COMBINED {{.*}} op1=0
; BACKEND1-DAG: <COMBINED {{.*}} op1=1
; BACKEND1-DAG: <COMBINED_ALIAS {{.*}} op1=1
Restore "[ThinLTO] Emit individual index files for distributed backends" 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
2016-05-10 21:48:23 +08:00
; BACKEND1-NEXT: </GLOBALVAL_SUMMARY_BLOCK
; The backend index for Input/distributed_indexes.ll contains summaries from
; itself only, as it does not import anything.
; BACKEND2: <MODULE_STRTAB_BLOCK
; BACKEND2-NEXT: <ENTRY {{.*}} record string = '{{.*}}distributed_indexes.ll.tmp2.bc'
; BACKEND2-NEXT: </MODULE_STRTAB_BLOCK
; BACKEND2-NEXT: <GLOBALVAL_SUMMARY_BLOCK
; BACKEND2-NEXT: <VERSION
[ThinLTO] Make distributed indexes test more robust Modify test so that it passes in the reverse-iteration bot. We use DenseMap instead of std::map for the summaries to emit into distributed index files. The iteration order is not defined, but it is deterministic, which is good enough. llvm-svn: 321000
2017-12-19 02:00:32 +08:00
; BACKEND2-DAG: <VALUE_GUID op0={{.*}} op1=-5751648690987223394/>
; BACKEND2-DAG: <VALUE_GUID op0={{.*}} op1=-5300342847281564238/>
; BACKEND2-DAG: <VALUE_GUID op0={{.*}} op1=-1039159065113703048/>
Restore "[ThinLTO] Emit individual index files for distributed backends" 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
2016-05-10 21:48:23 +08:00
; BACKEND2-NEXT: <COMBINED
[ThinLTO] Enable importing of aliases as copy of aliasee Summary: This implements a missing feature to allow importing of aliases, which was previously disabled because alias cannot be available_externally. We instead import an alias as a copy of its aliasee. Some additional work was required in the IndexBitcodeWriter for the distributed build case, to ensure that the aliasee has a value id in the distributed index file (i.e. even when it is not being imported directly). This is a performance win in codes that have many aliases, e.g. C++ applications that have many constructor and destructor aliases. Reviewers: pcc Subscribers: mehdi_amini, inglorion, eraman, llvm-commits Differential Revision: https://reviews.llvm.org/D40747 llvm-svn: 320895
2017-12-16 08:18:12 +08:00
; BACKEND2-NEXT: <COMBINED
; BACKEND2-NEXT: <COMBINED_ALIAS
Restore "[ThinLTO] Emit individual index files for distributed backends" 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
2016-05-10 21:48:23 +08:00
; BACKEND2-NEXT: </GLOBALVAL_SUMMARY_BLOCK
[ThinLTO] Fix printing of aliases for distributed backend indexes Summary: When we import an alias (which will import a copy of the aliasee), but aren't going to import the aliasee directly, the distributed backend index will not contain the aliasee summary. Handle this in the summary assembly printer by printing "null" as the aliasee. Reviewers: davidxl, dexonsmith Subscribers: mehdi_amini, inglorion, eraman, steven_wu, llvm-commits Differential Revision: https://reviews.llvm.org/D48699 llvm-svn: 336160
2018-07-03 09:11:43 +08:00
; Make sure that when the alias is imported as a copy of the aliasee, but the
; aliasee is not being imported by itself, that we can still print the summary.
; The aliasee should be "null".
; RUN: llvm-dis %t1.bc.thinlto.bc -o - | FileCheck %s --check-prefix=DIS
; DIS: aliasee: null
Restore "[ThinLTO] Emit individual index files for distributed backends" 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
2016-05-10 21:48:23 +08:00
declare void @g(...)
[ThinLTO] Enable importing of aliases as copy of aliasee Summary: This implements a missing feature to allow importing of aliases, which was previously disabled because alias cannot be available_externally. We instead import an alias as a copy of its aliasee. Some additional work was required in the IndexBitcodeWriter for the distributed build case, to ensure that the aliasee has a value id in the distributed index file (i.e. even when it is not being imported directly). This is a performance win in codes that have many aliases, e.g. C++ applications that have many constructor and destructor aliases. Reviewers: pcc Subscribers: mehdi_amini, inglorion, eraman, llvm-commits Differential Revision: https://reviews.llvm.org/D40747 llvm-svn: 320895
2017-12-16 08:18:12 +08:00
declare void @analias(...)
Restore "[ThinLTO] Emit individual index files for distributed backends" 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
2016-05-10 21:48:23 +08:00
define void @f() {
entry:
call void (...) @g()
[ThinLTO] Enable importing of aliases as copy of aliasee Summary: This implements a missing feature to allow importing of aliases, which was previously disabled because alias cannot be available_externally. We instead import an alias as a copy of its aliasee. Some additional work was required in the IndexBitcodeWriter for the distributed build case, to ensure that the aliasee has a value id in the distributed index file (i.e. even when it is not being imported directly). This is a performance win in codes that have many aliases, e.g. C++ applications that have many constructor and destructor aliases. Reviewers: pcc Subscribers: mehdi_amini, inglorion, eraman, llvm-commits Differential Revision: https://reviews.llvm.org/D40747 llvm-svn: 320895
2017-12-16 08:18:12 +08:00
call void (...) @analias()
Restore "[ThinLTO] Emit individual index files for distributed backends" 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
2016-05-10 21:48:23 +08:00
ret void
}