https://github.com/mingmingl-llvm ready_for_review
https://github.com/llvm/llvm-project/pull/124991
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>From 755b5d07f8fb792793036179df72eec6bda19260 Mon Sep 17 00:00:00 2001
From: mingmingl
Date: Wed, 29 Jan 2025 13:17:11 -0800
Subject: [PATCH 1/2] [Clang]Add -fpartition-static-data-section
---
clang/in
mingmingl-llvm wrote:
> > Taking a further look shows these preserved RTTIs come from vtables whose
> > superclass has its type-id accessed.
>
> Thank you for helping evaluate this patch. I am curious about what these type
> IDs is used for—is it for dynamic_cast, exception handling, or the ty
@@ -911,6 +916,63 @@ static void setLiveRoot(ModuleSummaryIndex &Index,
StringRef Name) {
Summary->setLive(true);
}
+// Return true if the User U is reachable from a non-vtable user
+// through the use-def chain.
+static bool hasNonVTableUsers(const User *U, CXXABI *ABI
@@ -0,0 +1,49 @@
+#include "llvm/Transforms/IPO/DeadRTTIElimination.h"
+#include "llvm/ADT/Statistic.h"
+#include "llvm/IR/ModuleSummaryIndex.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/LibCXXABI.h"
+
+using namespace llvm;
+
+#define DEBUG_TYPE "dre"
+
+STATISTIC(
@@ -911,6 +916,63 @@ static void setLiveRoot(ModuleSummaryIndex &Index,
StringRef Name) {
Summary->setLive(true);
}
+// Return true if the User U is reachable from a non-vtable user
+// through the use-def chain.
+static bool hasNonVTableUsers(const User *U, CXXABI *ABI
https://github.com/mingmingl-llvm commented:
I tried this patch on an internal data center application and it reduced the
`.data.rel.ro` section size by 3.69% and the number of `_ZTS` or `_ZTI`
prefixed entries by ~27% ~ 28%.
Despite the good size savings, the numbers make me curious about wha
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@@ -0,0 +1,20 @@
+; RUN: llvm-as %s -o - | llvm-dis -o %t.ll
+; RUN: grep "^\^" %s >%t2
+; RUN: grep "^\^" %t.ll >%t3
+; Expect that the summary information is the same after round-trip through
+; llvm-as and llvm-dis.
+; RUN: diff -b %t2 %t3
+
+target triple = "aarch64-unknown-li
@@ -0,0 +1,20 @@
+; RUN: llvm-as %s -o - | llvm-dis -o %t.ll
+; RUN: grep "^\^" %s >%t2
+; RUN: grep "^\^" %t.ll >%t3
+; Expect that the summary information is the same after round-trip through
+; llvm-as and llvm-dis.
+; RUN: diff -b %t2 %t3
+
+target triple = "aarch64-unknown-li
https://github.com/mingmingl-llvm commented:
Thanks for the work! Do you have some stats with this change applied?
https://github.com/llvm/llvm-project/pull/126336
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None
>From 755b5d07f8fb792793036179df72eec6bda19260 Mon Sep 17 00:00:00 2001
From: mingmingl
Date: Wed, 29 Jan 2025 13:17:11 -0800
Subject: [PATCH 1/2] [Clang]Add -fpartition-static-data-section
---
cl
mingmingl-llvm wrote:
thanks for taking a look!
https://github.com/llvm/llvm-project/pull/122860
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>From 4d095938962f078f1b1d6d35c28f5fbae4a1349d Mon Sep 17 00:00:00 2001
From: mingmingl
Date: Mon, 13 Jan 2025 21:32:15 -0800
Subject: [PATCH] [NFC]Update -fsplit-machine-functions now aarch64 funct
https://github.com/mingmingl-llvm closed
https://github.com/llvm/llvm-project/pull/119791
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>From a996d55a1876e53f42978a6ff32fda86c3b062fe Mon Sep 17 00:00:00 2001
From: mingmingl
Date: Thu, 12 Dec 2024 16:11:30 -0800
Subject: [PATCH] [docs]Fix a typo around '#pragma clang section'
---
c
@@ -56,6 +56,7 @@ Error thinBackend(const Config &C, unsigned Task, AddStreamFn
AddStream,
const FunctionImporter::ImportMapTy &ImportList,
const GVSummaryMapTy &DefinedGlobals,
MapVector *ModuleMap,
+ bool
minglotus-6 wrote:
The unused variable error is fixed in
https://github.com/llvm/llvm-project/commit/a7f152f59b1d64c6e1698fc6840c4911e11a
https://github.com/llvm/llvm-project/pull/107471
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>From a18e042a0d03321d3ffca9ede92e976343a1b4c7 Mon Sep 17 00:00:00 2001
From: mingmingl
Date: Thu, 5 Sep 2024 14:36:28 -0700
Subject: [PATCH 1/6] [NFCI]Clean up synthetic count
---
clang/docs/tools/clang-f
https://github.com/minglotus-6 updated
https://github.com/llvm/llvm-project/pull/107471
>From a18e042a0d03321d3ffca9ede92e976343a1b4c7 Mon Sep 17 00:00:00 2001
From: mingmingl
Date: Thu, 5 Sep 2024 14:36:28 -0700
Subject: [PATCH 1/5] [NFCI]Clean up synthetic count
---
clang/docs/tools/clang-f
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>From a18e042a0d03321d3ffca9ede92e976343a1b4c7 Mon Sep 17 00:00:00 2001
From: mingmingl
Date: Thu, 5 Sep 2024 14:36:28 -0700
Subject: [PATCH 1/4] [NFCI]Clean up synthetic count
---
clang/docs/tools/clang-f
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>From a18e042a0d03321d3ffca9ede92e976343a1b4c7 Mon Sep 17 00:00:00 2001
From: mingmingl
Date: Thu, 5 Sep 2024 14:36:28 -0700
Subject: [PATCH 1/3] [NFCI]Clean up synthetic count
---
clang/docs/tools/clang-f
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>From a18e042a0d03321d3ffca9ede92e976343a1b4c7 Mon Sep 17 00:00:00 2001
From: mingmingl
Date: Thu, 5 Sep 2024 14:36:28 -0700
Subject: [PATCH 1/2] [NFCI]Clean up synthetic count
---
clang/docs/tools/clang-f
@@ -215,13 +215,49 @@ class FunctionImporter {
SmallVector getSourceModules() const;
std::optional
-getImportType(const FunctionsToImportTy &GUIDToImportType,
- GlobalValue::GUID GUID) const;
+getImportType(StringRef FromModule, GlobalValue::GU
@@ -1827,15 +1831,13 @@ Expected FunctionImporter::importFunctions(
if (Error Err = SrcModule->materializeMetadata())
return std::move(Err);
-auto &ImportGUIDs = FunctionsToImportPerModule->second;
-
// Find the globals to import
SetVector GlobalsToImpo
minglotus-6 wrote:
Fixing https://lab.llvm.org/buildbot/#/builders/95/builds/672 in
https://github.com/llvm/llvm-project/pull/97228
https://github.com/llvm/llvm-project/pull/81442
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minglotus-6 wrote:
Going to merge as the failed tests are not related to this PR.
```
cat github-pull-requests_build_76910_linux-linux-x64.log | grep -B 2 -A 10
"Failed Tests "
--
Failed Tests (1):
BO
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@@ -277,35 +626,160 @@ CallBase &llvm::pgo::promoteIndirectCall(CallBase &CB,
Function *DirectCallee,
// Promote indirect-call to conditional direct-call for one callsite.
bool IndirectCallPromoter::tryToPromoteWithFuncCmp(
-CallBase &CB, const std::vector &Candidates,
-
@@ -322,14 +796,133 @@ bool
IndirectCallPromoter::processFunction(ProfileSummaryInfo *PSI) {
if (!NumCandidates ||
(PSI && PSI->hasProfileSummary() && !PSI->isHotCount(TotalCount)))
continue;
+
auto PromotionCandidates = getPromotionCandidatesForCallSite
@@ -322,14 +796,133 @@ bool
IndirectCallPromoter::processFunction(ProfileSummaryInfo *PSI) {
if (!NumCandidates ||
(PSI && PSI->hasProfileSummary() && !PSI->isHotCount(TotalCount)))
continue;
+
auto PromotionCandidates = getPromotionCandidatesForCallSite
@@ -103,27 +112,226 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// Indirect call promotion pass will fall back to function-based comparison if
+// vtable-count / function-
@@ -1425,16 +1430,27 @@ MDNode *getPGOFuncNameMetadata(const Function &F) {
return F.getMetadata(getPGOFuncNameMetadataName());
}
-void createPGOFuncNameMetadata(Function &F, StringRef PGOFuncName) {
- // Only for internal linkage functions.
- if (PGOFuncName == F.getName(
@@ -103,27 +112,226 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// Indirect call promotion pass will fall back to function-based comparison if
+// vtable-count / function-
@@ -277,35 +626,160 @@ CallBase &llvm::pgo::promoteIndirectCall(CallBase &CB,
Function *DirectCallee,
// Promote indirect-call to conditional direct-call for one callsite.
bool IndirectCallPromoter::tryToPromoteWithFuncCmp(
-CallBase &CB, const std::vector &Candidates,
-
@@ -322,14 +796,133 @@ bool
IndirectCallPromoter::processFunction(ProfileSummaryInfo *PSI) {
if (!NumCandidates ||
(PSI && PSI->hasProfileSummary() && !PSI->isHotCount(TotalCount)))
continue;
+
auto PromotionCandidates = getPromotionCandidatesForCallSite
@@ -140,14 +348,56 @@ class IndirectCallPromoter {
// indirect callee with functions. Returns true if there are IR
// transformations and false otherwise.
bool tryToPromoteWithFuncCmp(
- CallBase &CB, const std::vector &Candidates,
- uint64_t TotalCount, ArrayRe
@@ -103,27 +112,226 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// Indirect call promotion pass will fall back to function-based comparison if
+// vtable-count / function-
@@ -103,27 +112,226 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// Indirect call promotion pass will fall back to function-based comparison if
+// vtable-count / function-
@@ -322,14 +796,133 @@ bool
IndirectCallPromoter::processFunction(ProfileSummaryInfo *PSI) {
if (!NumCandidates ||
(PSI && PSI->hasProfileSummary() && !PSI->isHotCount(TotalCount)))
continue;
+
auto PromotionCandidates = getPromotionCandidatesForCallSite
@@ -103,27 +112,226 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// Indirect call promotion pass will fall back to function-based comparison if
+// vtable-count / function-
@@ -1425,16 +1430,27 @@ MDNode *getPGOFuncNameMetadata(const Function &F) {
return F.getMetadata(getPGOFuncNameMetadataName());
}
-void createPGOFuncNameMetadata(Function &F, StringRef PGOFuncName) {
- // Only for internal linkage functions.
- if (PGOFuncName == F.getName(
@@ -103,27 +114,226 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// Indirect call promotion pass will fall back to function-based comparison if
+// vtable-count / function-
@@ -321,14 +790,114 @@ bool
IndirectCallPromoter::processFunction(ProfileSummaryInfo *PSI) {
if (!NumCandidates ||
(PSI && PSI->hasProfileSummary() && !PSI->isHotCount(TotalCount)))
continue;
+
auto PromotionCandidates = getPromotionCandidatesForCallSite
@@ -1393,16 +1398,27 @@ MDNode *getPGOFuncNameMetadata(const Function &F) {
return F.getMetadata(getPGOFuncNameMetadataName());
}
-void createPGOFuncNameMetadata(Function &F, StringRef PGOFuncName) {
- // Only for internal linkage functions.
- if (PGOFuncName == F.getName(
@@ -1967,11 +1969,23 @@ void llvm::updateProfileCallee(
uint64_t CloneEntryCount = PriorEntryCount - NewEntryCount;
for (auto Entry : *VMap) {
if (isa(Entry.first))
-if (auto *CI = dyn_cast_or_null(Entry.second))
+if (auto *CI = dyn_cast_or_null(En
@@ -321,14 +790,114 @@ bool
IndirectCallPromoter::processFunction(ProfileSummaryInfo *PSI) {
if (!NumCandidates ||
(PSI && PSI->hasProfileSummary() && !PSI->isHotCount(TotalCount)))
continue;
+
auto PromotionCandidates = getPromotionCandidatesForCallSite
@@ -321,14 +746,127 @@ bool
IndirectCallPromoter::processFunction(ProfileSummaryInfo *PSI) {
if (!NumCandidates ||
(PSI && PSI->hasProfileSummary() && !PSI->isHotCount(TotalCount)))
continue;
+
auto PromotionCandidates = getPromotionCandidatesForCallSite
@@ -1967,11 +1969,23 @@ void llvm::updateProfileCallee(
uint64_t CloneEntryCount = PriorEntryCount - NewEntryCount;
for (auto Entry : *VMap) {
if (isa(Entry.first))
-if (auto *CI = dyn_cast_or_null(Entry.second))
+if (auto *CI = dyn_cast_or_null(En
@@ -103,27 +114,226 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// Indirect call promotion pass will fall back to function-based comparison if
+// vtable-count / function-
@@ -276,35 +626,154 @@ CallBase &llvm::pgo::promoteIndirectCall(CallBase &CB,
Function *DirectCallee,
// Promote indirect-call to conditional direct-call for one callsite.
bool IndirectCallPromoter::tryToPromoteWithFuncCmp(
-CallBase &CB, const std::vector &Candidates,
-
@@ -276,35 +626,154 @@ CallBase &llvm::pgo::promoteIndirectCall(CallBase &CB,
Function *DirectCallee,
// Promote indirect-call to conditional direct-call for one callsite.
bool IndirectCallPromoter::tryToPromoteWithFuncCmp(
-CallBase &CB, const std::vector &Candidates,
-
@@ -321,14 +790,114 @@ bool
IndirectCallPromoter::processFunction(ProfileSummaryInfo *PSI) {
if (!NumCandidates ||
(PSI && PSI->hasProfileSummary() && !PSI->isHotCount(TotalCount)))
continue;
+
auto PromotionCandidates = getPromotionCandidatesForCallSite
@@ -276,35 +626,154 @@ CallBase &llvm::pgo::promoteIndirectCall(CallBase &CB,
Function *DirectCallee,
// Promote indirect-call to conditional direct-call for one callsite.
bool IndirectCallPromoter::tryToPromoteWithFuncCmp(
-CallBase &CB, const std::vector &Candidates,
-
@@ -103,30 +110,220 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// This option is meant to be used by LLVM regression test and test the
+// transformation that compares vt
https://github.com/minglotus-6 commented:
PTAL, thanks!
https://github.com/llvm/llvm-project/pull/81442
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@@ -2538,6 +2538,190 @@ Value *getSalvageOpsForIcmpOp(ICmpInst *Icmp, uint64_t
CurrentLocOps,
return Icmp->getOperand(0);
}
+void llvm::tryToSinkInstructionDbgValues(
minglotus-6 wrote:
The `gep` and `load` sequence doesn't have debug values (so far) so it
@@ -316,6 +316,15 @@ void salvageDebugInfoForDbgValues(Instruction &I,
ArrayRef Insns,
ArrayRef DPInsns);
+void tryToSinkInstructionDbgValues(
minglotus-6 wrote:
Debug intrinsics are not hand
@@ -103,30 +110,220 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// This option is meant to be used by LLVM regression test and test the
+// transformation that compares vt
@@ -240,27 +474,102 @@ IndirectCallPromoter::getPromotionCandidatesForCallSite(
Ret.push_back(PromotionCandidate(TargetFunction, Count));
TotalCount -= Count;
}
+
return Ret;
}
+Constant *IndirectCallPromoter::getOrCreateVTableAddressPointVar(
+GlobalVariabl
@@ -321,14 +746,127 @@ bool
IndirectCallPromoter::processFunction(ProfileSummaryInfo *PSI) {
if (!NumCandidates ||
(PSI && PSI->hasProfileSummary() && !PSI->isHotCount(TotalCount)))
continue;
+
auto PromotionCandidates = getPromotionCandidatesForCallSite
@@ -103,30 +110,220 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// This option is meant to be used by LLVM regression test and test the
+// transformation that compares vt
@@ -140,14 +337,51 @@ class IndirectCallPromoter {
// indirect callee with functions. Returns true if there are IR
// transformations and false otherwise.
bool tryToPromoteWithFuncCmp(
- CallBase &CB, const std::vector &Candidates,
- uint64_t TotalCount, ArrayRe
@@ -103,30 +110,220 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// This option is meant to be used by LLVM regression test and test the
+// transformation that compares vt
@@ -103,30 +110,222 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// This option is meant to be used by LLVM regression test and test the
+// transformation that compares vt
@@ -276,35 +585,151 @@ CallBase &llvm::pgo::promoteIndirectCall(CallBase &CB,
Function *DirectCallee,
// Promote indirect-call to conditional direct-call for one callsite.
bool IndirectCallPromoter::tryToPromoteWithFuncCmp(
-CallBase &CB, const std::vector &Candidates,
-
@@ -341,6 +879,17 @@ static bool promoteIndirectCalls(Module &M,
ProfileSummaryInfo *PSI, bool InLTO,
return false;
}
bool Changed = false;
+ VirtualCallSiteTypeInfoMap VirtualCSInfo;
+
+ computeVirtualCallSiteTypeInfoMap(M, MAM, VirtualCSInfo);
+
+ // This map reco
@@ -103,30 +110,220 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// This option is meant to be used by LLVM regression test and test the
+// transformation that compares vt
@@ -103,30 +110,220 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// This option is meant to be used by LLVM regression test and test the
+// transformation that compares vt
@@ -276,35 +585,151 @@ CallBase &llvm::pgo::promoteIndirectCall(CallBase &CB,
Function *DirectCallee,
// Promote indirect-call to conditional direct-call for one callsite.
bool IndirectCallPromoter::tryToPromoteWithFuncCmp(
-CallBase &CB, const std::vector &Candidates,
-
@@ -103,30 +110,220 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// This option is meant to be used by LLVM regression test and test the
+// transformation that compares vt
@@ -103,30 +110,222 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// This option is meant to be used by LLVM regression test and test the
+// transformation that compares vt
@@ -103,30 +110,222 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// This option is meant to be used by LLVM regression test and test the
+// transformation that compares vt
@@ -103,30 +110,222 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// This option is meant to be used by LLVM regression test and test the
+// transformation that compares vt
@@ -103,30 +110,222 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// This option is meant to be used by LLVM regression test and test the
+// transformation that compares vt
@@ -103,30 +110,222 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// This option is meant to be used by LLVM regression test and test the
+// transformation that compares vt
@@ -89,41 +93,50 @@
// ICTEXT: # NumValueSites:
// ICTEXT: 2
// ICTEXT: 2
-// ICTEXT:
{{.*}}instrprof-vtable-value-prof.cpp;_ZN12_GLOBAL__N_18Derived25func1Eii:750
-// ICTEXT: _ZN8Derived15func1Eii:250
+// ICTEXT:
{{.*}}instrprof-vtable-value-prof.cpp;_ZN12_GLOBAL__N_18Derive
@@ -89,41 +93,50 @@
// ICTEXT: # NumValueSites:
// ICTEXT: 2
// ICTEXT: 2
-// ICTEXT:
{{.*}}instrprof-vtable-value-prof.cpp;_ZN12_GLOBAL__N_18Derived25func1Eii:750
-// ICTEXT: _ZN8Derived15func1Eii:250
+// ICTEXT:
{{.*}}instrprof-vtable-value-prof.cpp;_ZN12_GLOBAL__N_18Derive
@@ -103,30 +110,222 @@ static cl::opt
ICPDUMPAFTER("icp-dumpafter", cl::init(false), cl::Hidden,
cl::desc("Dump IR after transformation happens"));
+// This option is meant to be used by LLVM regression test and test the
+// transformation that compares vt
@@ -1967,11 +1969,23 @@ void llvm::updateProfileCallee(
uint64_t CloneEntryCount = PriorEntryCount - NewEntryCount;
for (auto Entry : *VMap) {
if (isa(Entry.first))
-if (auto *CI = dyn_cast_or_null(Entry.second))
+if (auto *CI = dyn_cast_or_null(En
https://github.com/minglotus-6 edited
https://github.com/llvm/llvm-project/pull/81442
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minglotus-6 wrote:
Close this stale patch and won't merge conflicts in this one.
Working on https://github.com/llvm/llvm-project/pull/81442 now.
https://github.com/llvm/llvm-project/pull/69141
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ht
https://github.com/minglotus-6 closed
https://github.com/llvm/llvm-project/pull/69141
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minglotus-6 wrote:
> I think this might be breaking: FAIL: LLVM :: tools/gold/X86/thinlto.ll
fixed in
https://github.com/llvm/llvm-project/commit/20ed5b1f45871612570d3bd447121ac43e083c6a
https://github.com/llvm/llvm-project/pull/87597
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minglotus-6 wrote:
> I think this might be breaking:
> FAIL: LLVM :: tools/gold/X86/thinlto.ll
Thanks for reporting and sorry for this. I'll send out a fix soon.
https://github.com/llvm/llvm-project/pull/87597
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https://github.com/llvm/llvm-project/pull/87597
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