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[ORC] Move most ORC APIs to ExecutorAddr, introduce ExecutorSymbolDef.
ExecutorAddr was introduced in b8e5f91 as an eventual replacement for JITTargetAddress. ExecutorSymbolDef is introduced in this patch as a replacement for JITEvaluatedSymbol: ExecutorSymbolDef is an (ExecutorAddr, JITSymbolFlags) pair, where JITEvaluatedSymbol was a (JITTargetAddress, JITSymbolFlags) pair. A number of APIs had already migrated from JITTargetAddress to ExecutorAddr, but many of ORC's internals were still using the older type. This patch aims to address that. Some public APIs are affected as well. If you need to migrate your APIs you can use the following operations: * ExecutorAddr::toPtr replaces jitTargetAddressToPointer and jitTargetAddressToFunction. * ExecutorAddr::fromPtr replace pointerToJITTargetAddress. * ExecutorAddr(JITTargetAddress) creates an ExecutorAddr value from a JITTargetAddress. * ExecutorAddr::getValue() creates a JITTargetAddress value from an ExecutorAddr. JITTargetAddress and JITEvaluatedSymbol will remain in JITSymbol.h for now, but the aim will be to eventually deprecate and remove these types (probably when MCJIT and RuntimeDyld are deprecated).
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‎llvm/docs/ORCv2.rst

Lines changed: 5 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -147,7 +147,7 @@ specified before the JIT instance is constructed. For example:
147147
auto JIT = LLLazyJITBuilder()
148148
.setNumCompileThreads(4)
149149
.setLazyCompileFailureAddr(
150-
toJITTargetAddress(&handleLazyCompileFailure))
150+
ExecutorAddr::fromPtr(&handleLazyCompileFailure))
151151
.create();
152152

153153
// ...
@@ -315,7 +315,7 @@ absolute symbols is allowing resolution of process symbols. E.g.
315315
316316
JD.define(absoluteSymbols(SymbolMap({
317317
{ Mangle("printf"),
318-
{ pointerToJITTargetAddress(&printf),
318+
{ ExecutorAddr::fromPtr(&printf),
319319
JITSymbolFlags::Callable } }
320320
});
321321
@@ -364,7 +364,7 @@ absolute symbol definition when the JIT is started:
364364
365365
JITStdLibJD.define(absoluteSymbols(SymbolMap({
366366
{ Mangle("__MyJITInstance"),
367-
{ pointerToJITTargetAddress(&J), JITSymbolFlags() } }
367+
{ ExecutorAddr::fromPtr(&J), JITSymbolFlags() } }
368368
});
369369
370370
Aliases and Reexports
@@ -819,8 +819,8 @@ absoluteSymbols function:
819819

820820
JD.define(
821821
absoluteSymbols({
822-
{ Mangle("puts"), pointerToJITTargetAddress(&puts)},
823-
{ Mangle("gets"), pointerToJITTargetAddress(&getS)}
822+
{ Mangle("puts"), ExecutorAddr::fromPtr(&puts)},
823+
{ Mangle("gets"), ExecutorAddr::fromPtr(&getS)}
824824
}));
825825

826826
Using absoluteSymbols is reasonable if the set of symbols to be reflected is

‎llvm/docs/tutorial/BuildingAJIT1.rst

Lines changed: 2 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -67,7 +67,7 @@ just two functions:
6767

6868
1. ``Error addModule(std::unique_ptr<Module> M)``: Make the given IR module
6969
available for execution.
70-
2. ``Expected<JITEvaluatedSymbol> lookup()``: Search for pointers to
70+
2. ``Expected<ExecutorSymbolDef> lookup()``: Search for pointers to
7171
symbols (functions or variables) that have been added to the JIT.
7272

7373
A basic use-case for this API, executing the 'main' function from a module,
@@ -110,7 +110,6 @@ usual include guards and #includes [2]_, we get to the definition of our class:
110110
#define LLVM_EXECUTIONENGINE_ORC_KALEIDOSCOPEJIT_H
111111

112112
#include "llvm/ADT/StringRef.h"
113-
#include "llvm/ExecutionEngine/JITSymbol.h"
114113
#include "llvm/ExecutionEngine/Orc/CompileUtils.h"
115114
#include "llvm/ExecutionEngine/Orc/Core.h"
116115
#include "llvm/ExecutionEngine/Orc/ExecutionUtils.h"
@@ -224,7 +223,7 @@ will build our IR modules.
224223
ThreadSafeModule(std::move(M), Ctx)));
225224
}
226225

227-
Expected<JITEvaluatedSymbol> lookup(StringRef Name) {
226+
Expected<ExecutorSymbolDef> lookup(StringRef Name) {
228227
return ES.lookup({&ES.getMainJITDylib()}, Mangle(Name.str()));
229228
}
230229

@@ -295,9 +294,6 @@ Here is the code:
295294
.. [2] +-----------------------------+-----------------------------------------------+
296295
| File | Reason for inclusion |
297296
+=============================+===============================================+
298-
| JITSymbol.h | Defines the lookup result type |
299-
| | JITEvaluatedSymbol |
300-
+-----------------------------+-----------------------------------------------+
301297
| CompileUtils.h | Provides the SimpleCompiler class. |
302298
+-----------------------------+-----------------------------------------------+
303299
| Core.h | Core utilities such as ExecutionSession and |

‎llvm/docs/tutorial/BuildingAJIT3.rst

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -119,8 +119,8 @@ to create the compile callback needed for each function.
119119
120120
Next we have to update our constructor to initialize the new members. To create
121121
an appropriate compile callback manager we use the
122-
createLocalCompileCallbackManager function, which takes a TargetMachine and a
123-
JITTargetAddress to call if it receives a request to compile an unknown
122+
createLocalCompileCallbackManager function, which takes a TargetMachine and an
123+
ExecutorAddr to call if it receives a request to compile an unknown
124124
function. In our simple JIT this situation is unlikely to come up, so we'll
125125
cheat and just pass '0' here. In a production quality JIT you could give the
126126
address of a function that throws an exception in order to unwind the JIT'd

‎llvm/examples/Kaleidoscope/BuildingAJIT/Chapter1/KaleidoscopeJIT.h

Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -14,7 +14,6 @@
1414
#define LLVM_EXECUTIONENGINE_ORC_KALEIDOSCOPEJIT_H
1515

1616
#include "llvm/ADT/StringRef.h"
17-
#include "llvm/ExecutionEngine/JITSymbol.h"
1817
#include "llvm/ExecutionEngine/Orc/CompileUtils.h"
1918
#include "llvm/ExecutionEngine/Orc/Core.h"
2019
#include "llvm/ExecutionEngine/Orc/ExecutionUtils.h"
@@ -89,7 +88,7 @@ class KaleidoscopeJIT {
8988
return CompileLayer.add(RT, std::move(TSM));
9089
}
9190

92-
Expected<JITEvaluatedSymbol> lookup(StringRef Name) {
91+
Expected<ExecutorSymbolDef> lookup(StringRef Name) {
9392
return ES->lookup({&MainJD}, Mangle(Name.str()));
9493
}
9594
};

‎llvm/examples/Kaleidoscope/BuildingAJIT/Chapter1/toy.cpp

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1159,7 +1159,7 @@ static void HandleTopLevelExpression() {
11591159

11601160
// Get the symbol's address and cast it to the right type (takes no
11611161
// arguments, returns a double) so we can call it as a native function.
1162-
auto *FP = (double (*)())(intptr_t)Sym.getAddress();
1162+
auto *FP = Sym.getAddress().toPtr<double (*)()>();
11631163
fprintf(stderr, "Evaluated to %f\n", FP());
11641164

11651165
// Delete the anonymous expression module from the JIT.

‎llvm/examples/Kaleidoscope/BuildingAJIT/Chapter2/KaleidoscopeJIT.h

Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -14,7 +14,6 @@
1414
#define LLVM_EXECUTIONENGINE_ORC_KALEIDOSCOPEJIT_H
1515

1616
#include "llvm/ADT/StringRef.h"
17-
#include "llvm/ExecutionEngine/JITSymbol.h"
1817
#include "llvm/ExecutionEngine/Orc/CompileUtils.h"
1918
#include "llvm/ExecutionEngine/Orc/Core.h"
2019
#include "llvm/ExecutionEngine/Orc/ExecutionUtils.h"
@@ -97,7 +96,7 @@ class KaleidoscopeJIT {
9796
return OptimizeLayer.add(RT, std::move(TSM));
9897
}
9998

100-
Expected<JITEvaluatedSymbol> lookup(StringRef Name) {
99+
Expected<ExecutorSymbolDef> lookup(StringRef Name) {
101100
return ES->lookup({&MainJD}, Mangle(Name.str()));
102101
}
103102

‎llvm/examples/Kaleidoscope/BuildingAJIT/Chapter2/toy.cpp

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1159,7 +1159,7 @@ static void HandleTopLevelExpression() {
11591159

11601160
// Get the symbol's address and cast it to the right type (takes no
11611161
// arguments, returns a double) so we can call it as a native function.
1162-
auto *FP = (double (*)())(intptr_t)Sym.getAddress();
1162+
auto *FP = Sym.getAddress().toPtr<double (*)()>();
11631163
fprintf(stderr, "Evaluated to %f\n", FP());
11641164

11651165
// Delete the anonymous expression module from the JIT.

‎llvm/examples/Kaleidoscope/BuildingAJIT/Chapter3/KaleidoscopeJIT.h

Lines changed: 2 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -14,7 +14,6 @@
1414
#define LLVM_EXECUTIONENGINE_ORC_KALEIDOSCOPEJIT_H
1515

1616
#include "llvm/ADT/StringRef.h"
17-
#include "llvm/ExecutionEngine/JITSymbol.h"
1817
#include "llvm/ExecutionEngine/Orc/CompileOnDemandLayer.h"
1918
#include "llvm/ExecutionEngine/Orc/CompileUtils.h"
2019
#include "llvm/ExecutionEngine/Orc/Core.h"
@@ -96,7 +95,7 @@ class KaleidoscopeJIT {
9695
return EPCIU.takeError();
9796

9897
(*EPCIU)->createLazyCallThroughManager(
99-
*ES, pointerToJITTargetAddress(&handleLazyCallThroughError));
98+
*ES, ExecutorAddr::fromPtr(&handleLazyCallThroughError));
10099

101100
if (auto Err = setUpInProcessLCTMReentryViaEPCIU(**EPCIU))
102101
return std::move(Err);
@@ -123,7 +122,7 @@ class KaleidoscopeJIT {
123122
return CODLayer.add(RT, std::move(TSM));
124123
}
125124

126-
Expected<JITEvaluatedSymbol> lookup(StringRef Name) {
125+
Expected<ExecutorSymbolDef> lookup(StringRef Name) {
127126
return ES->lookup({&MainJD}, Mangle(Name.str()));
128127
}
129128

‎llvm/examples/Kaleidoscope/BuildingAJIT/Chapter3/toy.cpp

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1159,7 +1159,7 @@ static void HandleTopLevelExpression() {
11591159

11601160
// Get the symbol's address and cast it to the right type (takes no
11611161
// arguments, returns a double) so we can call it as a native function.
1162-
auto *FP = (double (*)())(intptr_t)Sym.getAddress();
1162+
auto *FP = Sym.getAddress().toPtr<double (*)()>();
11631163
fprintf(stderr, "Evaluated to %f\n", FP());
11641164

11651165
// Delete the anonymous expression module from the JIT.

‎llvm/examples/Kaleidoscope/BuildingAJIT/Chapter4/KaleidoscopeJIT.h

Lines changed: 2 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -14,7 +14,6 @@
1414
#define LLVM_EXECUTIONENGINE_ORC_KALEIDOSCOPEJIT_H
1515

1616
#include "llvm/ADT/StringRef.h"
17-
#include "llvm/ExecutionEngine/JITSymbol.h"
1817
#include "llvm/ExecutionEngine/Orc/CompileOnDemandLayer.h"
1918
#include "llvm/ExecutionEngine/Orc/CompileUtils.h"
2019
#include "llvm/ExecutionEngine/Orc/Core.h"
@@ -181,7 +180,7 @@ class KaleidoscopeJIT {
181180
return EPCIU.takeError();
182181

183182
(*EPCIU)->createLazyCallThroughManager(
184-
*ES, pointerToJITTargetAddress(&handleLazyCallThroughError));
183+
*ES, ExecutorAddr::fromPtr(&handleLazyCallThroughError));
185184

186185
if (auto Err = setUpInProcessLCTMReentryViaEPCIU(**EPCIU))
187186
return std::move(Err);
@@ -214,7 +213,7 @@ class KaleidoscopeJIT {
214213
return ASTLayer.add(RT, std::move(F));
215214
}
216215

217-
Expected<JITEvaluatedSymbol> lookup(StringRef Name) {
216+
Expected<ExecutorSymbolDef> lookup(StringRef Name) {
218217
return ES->lookup({&MainJD}, Mangle(Name.str()));
219218
}
220219

‎llvm/examples/Kaleidoscope/BuildingAJIT/Chapter4/toy.cpp

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1157,7 +1157,7 @@ static void HandleTopLevelExpression() {
11571157

11581158
// Get the symbol's address and cast it to the right type (takes no
11591159
// arguments, returns a double) so we can call it as a native function.
1160-
auto *FP = (double (*)())(intptr_t)Sym.getAddress();
1160+
auto *FP = Sym.getAddress().toPtr<double (*)()>();
11611161
fprintf(stderr, "Evaluated to %f\n", FP());
11621162

11631163
// Delete the anonymous expression module from the JIT.

‎llvm/examples/Kaleidoscope/Chapter4/toy.cpp

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -620,7 +620,7 @@ static void HandleTopLevelExpression() {
620620

621621
// Get the symbol's address and cast it to the right type (takes no
622622
// arguments, returns a double) so we can call it as a native function.
623-
double (*FP)() = (double (*)())(intptr_t)ExprSymbol.getAddress();
623+
double (*FP)() = ExprSymbol.getAddress().toPtr<double (*)()>();
624624
fprintf(stderr, "Evaluated to %f\n", FP());
625625

626626
// Delete the anonymous expression module from the JIT.

‎llvm/examples/Kaleidoscope/Chapter5/toy.cpp

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -894,7 +894,7 @@ static void HandleTopLevelExpression() {
894894

895895
// Get the symbol's address and cast it to the right type (takes no
896896
// arguments, returns a double) so we can call it as a native function.
897-
double (*FP)() = (double (*)())(intptr_t)ExprSymbol.getAddress();
897+
double (*FP)() = ExprSymbol.getAddress().toPtr<double (*)()>();
898898
fprintf(stderr, "Evaluated to %f\n", FP());
899899

900900
// Delete the anonymous expression module from the JIT.

‎llvm/examples/Kaleidoscope/Chapter6/toy.cpp

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1013,7 +1013,7 @@ static void HandleTopLevelExpression() {
10131013

10141014
// Get the symbol's address and cast it to the right type (takes no
10151015
// arguments, returns a double) so we can call it as a native function.
1016-
double (*FP)() = (double (*)())(intptr_t)ExprSymbol.getAddress();
1016+
double (*FP)() = ExprSymbol.getAddress().toPtr<double (*)()>();
10171017
fprintf(stderr, "Evaluated to %f\n", FP());
10181018

10191019
// Delete the anonymous expression module from the JIT.

‎llvm/examples/Kaleidoscope/Chapter7/toy.cpp

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1184,7 +1184,7 @@ static void HandleTopLevelExpression() {
11841184

11851185
// Get the symbol's address and cast it to the right type (takes no
11861186
// arguments, returns a double) so we can call it as a native function.
1187-
double (*FP)() = (double (*)())(intptr_t)ExprSymbol.getAddress();
1187+
double (*FP)() = ExprSymbol.getAddress().toPtr<double (*)()>();
11881188
fprintf(stderr, "Evaluated to %f\n", FP());
11891189

11901190
// Delete the anonymous expression module from the JIT.

‎llvm/examples/Kaleidoscope/include/KaleidoscopeJIT.h

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -93,7 +93,7 @@ class KaleidoscopeJIT {
9393
return CompileLayer.add(RT, std::move(TSM));
9494
}
9595

96-
Expected<JITEvaluatedSymbol> lookup(StringRef Name) {
96+
Expected<ExecutorSymbolDef> lookup(StringRef Name) {
9797
return ES->lookup({&MainJD}, Mangle(Name.str()));
9898
}
9999
};

‎llvm/examples/OrcV2Examples/LLJITWithExecutorProcessControl/LLJITWithExecutorProcessControl.cpp

Lines changed: 5 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -107,10 +107,8 @@ static void *reenter(void *Ctx, void *TrampolineAddr) {
107107

108108
auto *EPCIU = static_cast<EPCIndirectionUtils *>(Ctx);
109109
EPCIU->getLazyCallThroughManager().resolveTrampolineLandingAddress(
110-
pointerToJITTargetAddress(TrampolineAddr),
111-
[&](JITTargetAddress LandingAddress) {
112-
LandingAddressP.set_value(
113-
jitTargetAddressToPointer<void *>(LandingAddress));
110+
ExecutorAddr::fromPtr(TrampolineAddr), [&](ExecutorAddr LandingAddress) {
111+
LandingAddressP.set_value(LandingAddress.toPtr<void *>());
114112
});
115113
return LandingAddressF.get();
116114
}
@@ -149,10 +147,10 @@ int main(int argc, char *argv[]) {
149147
// (3) Create stubs and call-through managers:
150148
auto EPCIU = ExitOnErr(EPCIndirectionUtils::Create(
151149
J->getExecutionSession().getExecutorProcessControl()));
152-
ExitOnErr(EPCIU->writeResolverBlock(pointerToJITTargetAddress(&reenter),
153-
pointerToJITTargetAddress(EPCIU.get())));
150+
ExitOnErr(EPCIU->writeResolverBlock(ExecutorAddr::fromPtr(&reenter),
151+
ExecutorAddr::fromPtr(EPCIU.get())));
154152
EPCIU->createLazyCallThroughManager(
155-
J->getExecutionSession(), pointerToJITTargetAddress(&reportErrorAndExit));
153+
J->getExecutionSession(), ExecutorAddr::fromPtr(&reportErrorAndExit));
156154
auto ISM = EPCIU->createIndirectStubsManager();
157155
J->getMainJITDylib().addGenerator(
158156
ExitOnErr(EPCDynamicLibrarySearchGenerator::GetForTargetProcess(

‎llvm/examples/OrcV2Examples/LLJITWithInitializers/LLJITWithInitializers.cpp

Lines changed: 7 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -78,11 +78,13 @@ int main(int argc, char *argv[]) {
7878
int32_t InitializersRunFlag = 0;
7979
int32_t DeinitializersRunFlag = 0;
8080

81-
ExitOnErr(J->getMainJITDylib().define(absoluteSymbols(
82-
{{J->mangleAndIntern("InitializersRunFlag"),
83-
JITEvaluatedSymbol::fromPointer(&InitializersRunFlag)},
84-
{J->mangleAndIntern("DeinitializersRunFlag"),
85-
JITEvaluatedSymbol::fromPointer(&DeinitializersRunFlag)}})));
81+
ExitOnErr(J->getMainJITDylib().define(
82+
absoluteSymbols({{J->mangleAndIntern("InitializersRunFlag"),
83+
{ExecutorAddr::fromPtr(&InitializersRunFlag),
84+
JITSymbolFlags::Exported}},
85+
{J->mangleAndIntern("DeinitializersRunFlag"),
86+
{ExecutorAddr::fromPtr(&DeinitializersRunFlag),
87+
JITSymbolFlags::Exported}}})));
8688

8789
// Run static initializers.
8890
ExitOnErr(J->initialize(J->getMainJITDylib()));

‎llvm/examples/OrcV2Examples/LLJITWithLazyReexports/LLJITWithLazyReexports.cpp

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -122,7 +122,7 @@ int main(int argc, char *argv[]) {
122122
ISM = ISMBuilder();
123123
}
124124
auto LCTM = ExitOnErr(createLocalLazyCallThroughManager(
125-
J->getTargetTriple(), J->getExecutionSession(), 0));
125+
J->getTargetTriple(), J->getExecutionSession(), ExecutorAddr()));
126126

127127
// (4) Add modules.
128128
ExitOnErr(J->addIRModule(ExitOnErr(parseExampleModule(FooMod, "foo-mod"))));

‎llvm/examples/SpeculativeJIT/SpeculativeJIT.cpp

Lines changed: 3 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -57,7 +57,7 @@ class SpeculativeJIT {
5757

5858
auto LCTMgr = createLocalLazyCallThroughManager(
5959
JTMB->getTargetTriple(), *ES,
60-
pointerToJITTargetAddress(explodeOnLazyCompileFailure));
60+
ExecutorAddr::fromPtr(explodeOnLazyCompileFailure));
6161
if (!LCTMgr)
6262
return LCTMgr.takeError();
6363

@@ -85,7 +85,7 @@ class SpeculativeJIT {
8585
return CODLayer.add(MainJD, std::move(TSM));
8686
}
8787

88-
Expected<JITEvaluatedSymbol> lookup(StringRef UnmangledName) {
88+
Expected<ExecutorSymbolDef> lookup(StringRef UnmangledName) {
8989
return ES->lookup({&MainJD}, Mangle(UnmangledName));
9090
}
9191

@@ -183,8 +183,7 @@ int main(int argc, char *argv[]) {
183183
}
184184

185185
auto MainSym = ExitOnErr(SJ->lookup("main"));
186-
auto Main =
187-
jitTargetAddressToFunction<int (*)(int, char *[])>(MainSym.getAddress());
186+
auto Main = MainSym.getAddress().toPtr<int (*)(int, char *[])>();
188187

189188
return runAsMain(Main, InputArgv, StringRef(InputFiles.front()));
190189

‎llvm/include/llvm/ExecutionEngine/JITLink/JITLink.h

Lines changed: 3 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -18,6 +18,8 @@
1818
#include "llvm/ADT/STLExtras.h"
1919
#include "llvm/ExecutionEngine/JITLink/JITLinkMemoryManager.h"
2020
#include "llvm/ExecutionEngine/JITSymbol.h"
21+
#include "llvm/ExecutionEngine/Orc/Shared/ExecutorAddress.h"
22+
#include "llvm/ExecutionEngine/Orc/Shared/ExecutorSymbolDef.h"
2123
#include "llvm/ExecutionEngine/Orc/Shared/MemoryFlags.h"
2224
#include "llvm/Support/Allocator.h"
2325
#include "llvm/Support/BinaryStreamReader.h"
@@ -1731,7 +1733,7 @@ enum class SymbolLookupFlags { RequiredSymbol, WeaklyReferencedSymbol };
17311733
raw_ostream &operator<<(raw_ostream &OS, const SymbolLookupFlags &LF);
17321734

17331735
/// A map of symbol names to resolved addresses.
1734-
using AsyncLookupResult = DenseMap<StringRef, JITEvaluatedSymbol>;
1736+
using AsyncLookupResult = DenseMap<StringRef, orc::ExecutorSymbolDef>;
17351737

17361738
/// A function object to call with a resolved symbol map (See AsyncLookupResult)
17371739
/// or an error if resolution failed.

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