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Replace ExAPI.json with extapi.c (extapi.c explaination wiki: https://github.com/SVF-tools/SVF/wiki/Handling-External-APIs-with-extapi.c) #1165

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merged 4 commits into from
Aug 16, 2023

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shuangxiangkan
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codecov bot commented Aug 14, 2023

Codecov Report

Merging #1165 (a6c467a) into master (f889cfb) will increase coverage by 0.10%.
The diff coverage is 88.16%.

❗ Current head a6c467a differs from pull request most recent head 68f270a. Consider uploading reports for the commit 68f270a to get more accurate results

Additional details and impacted files

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@@            Coverage Diff             @@
##           master    #1165      +/-   ##
==========================================
+ Coverage   64.64%   64.74%   +0.10%     
==========================================
  Files         223      222       -1     
  Lines       23865    23475     -390     
==========================================
- Hits        15427    15200     -227     
+ Misses       8438     8275     -163     
Files Changed Coverage Δ
svf-llvm/include/SVF-LLVM/SVFIRBuilder.h 88.88% <ø> (ø)
svf/include/SVFIR/SVFModule.h 78.94% <ø> (ø)
svf/include/SVFIR/SVFValue.h 90.00% <ø> (-0.79%) ⬇️
svf/lib/Util/SVFBugReport.cpp 19.27% <ø> (-0.32%) ⬇️
svf-llvm/lib/LLVMUtil.cpp 72.68% <82.81%> (+3.11%) ⬆️
svf-llvm/lib/SVFIRExtAPI.cpp 80.57% <83.17%> (+0.25%) ⬆️
svf-llvm/lib/SVFIRBuilder.cpp 78.15% <85.71%> (+0.08%) ⬆️
svf/lib/Util/ExtAPI.cpp 97.67% <96.15%> (+41.27%) ⬆️
svf-llvm/include/SVF-LLVM/LLVMModule.h 97.91% <100.00%> (+10.13%) ⬆️
svf-llvm/include/SVF-LLVM/LLVMUtil.h 76.25% <100.00%> (+2.91%) ⬆️
... and 4 more

... and 7 files with indirect coverage changes

/// if this function is declaration
candidateDecls.insert(&func);
removedFuncList.push_back(&func);
continue;
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remove

@@ -827,6 +830,64 @@ void LLVMModuleSet::buildFunToFunMap()
decls.push_back(decl);
}
}

/// App Func decl -> SVF extern Func def
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rewrite the comments to state the three cases.

for (const Function* extfun : extFuncs)
{
std::string declName = fdecl->getName().str();
// Change function like llvm.memcpy.p0i8.p0i8.i64 to llvm_memcpy_p0i8_p0i8_i64
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explain reason

}

/// Overwrite
/// App Func def -> SVF extern Func def
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put the table as comments here.

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extapi.c/ExtAPI.json:
38.008/40.965,
43.949/45.621,
30.198/31.855

SVF with extapi.c:
Andersen Pointer Analysis Stats******
################ (program : vi.bc)###############

TotalTime 38.008
CollapseTime 0
SCCDetectTime 0
SCCMergeTime 0
LoadStoreTime 0
CopyGepTime 0
UpdateCGTime 0
AvgPtsSetSize 51.8628
AvgTopLvlPtsSize 153.607
TotalPointers 341440
TotalObjects 17890
IndCallSites 515
AddrProcessed 19941
CopyProcessed 200014
GepProcessed 86211
LoadProcessed 1218658
StoreProcessed 359661
NumOfSFRs 0
NumOfFieldExpand 0
Pointers 340305
MemObjects 15501
DummyFieldPtrs 1135
FieldObjs 2389
MaxPtsSetSize 415
SolveIterations 10
IndEdgeSolved 1721
NumOfSCCDetect 10
TotalCycleNum 324
TotalPWCCycleNum 101
NodesInCycles 3913
MaxNodesInSCC 1597
NullPointer 161
PointsToConstPtr 14702
PointsToBlkPtr 0
#######################################################

SVF with ExtAPI.json:
Andersen Pointer Analysis Stats******
################ (program : vi.bc)###############

TotalTime 40.965
CollapseTime 0
SCCDetectTime 0
SCCMergeTime 0
LoadStoreTime 0
CopyGepTime 0
UpdateCGTime 0
AvgPtsSetSize 52.0716
AvgTopLvlPtsSize 154.493
TotalPointers 341083
TotalObjects 18074
IndCallSites 515
AddrProcessed 19883
CopyProcessed 197242
GepProcessed 85748
LoadProcessed 1264901
StoreProcessed 374892
NumOfSFRs 0
NumOfFieldExpand 0
Pointers 339949
MemObjects 15680
DummyFieldPtrs 1134
FieldObjs 2394
MaxPtsSetSize 423
SolveIterations 11
IndEdgeSolved 1721
NumOfSCCDetect 11
TotalCycleNum 327
TotalPWCCycleNum 101
NodesInCycles 3922
MaxNodesInSCC 1597
NullPointer 162
PointsToConstPtr 14486
PointsToBlkPtr 0
#######################################################

SVF with extapi.c:
Andersen Pointer Analysis Stats******
################ (program : evim.bc)###############

TotalTime 43.949
CollapseTime 0
SCCDetectTime 0
SCCMergeTime 0
LoadStoreTime 0
CopyGepTime 0
UpdateCGTime 0
AvgPtsSetSize 50.3127
AvgTopLvlPtsSize 144.956
TotalPointers 384248
TotalObjects 21318
IndCallSites 566
AddrProcessed 22795
CopyProcessed 213409
GepProcessed 92796
LoadProcessed 1331323
StoreProcessed 389037
NumOfSFRs 0
NumOfFieldExpand 0
Pointers 382946
MemObjects 17877
DummyFieldPtrs 1302
FieldObjs 3441
MaxPtsSetSize 426
SolveIterations 10
IndEdgeSolved 1739
NumOfSCCDetect 10
TotalCycleNum 342
TotalPWCCycleNum 106
NodesInCycles 4052
MaxNodesInSCC 1597
NullPointer 2313
PointsToConstPtr 15467
PointsToBlkPtr 0
#######################################################

SVF with ExtAPI.json:
Andersen Pointer Analysis Stats******
################ (program : evim.bc)###############

TotalTime 45.621
CollapseTime 0
SCCDetectTime 0
SCCMergeTime 0
LoadStoreTime 0
CopyGepTime 0
UpdateCGTime 0
AvgPtsSetSize 50.3631
AvgTopLvlPtsSize 145.342
TotalPointers 383856
TotalObjects 21525
IndCallSites 566
AddrProcessed 22726
CopyProcessed 210263
GepProcessed 92339
LoadProcessed 1382274
StoreProcessed 405518
NumOfSFRs 0
NumOfFieldExpand 0
Pointers 382555
MemObjects 18074
DummyFieldPtrs 1301
FieldObjs 3451
MaxPtsSetSize 433
SolveIterations 11
IndEdgeSolved 1739
NumOfSCCDetect 11
TotalCycleNum 347
TotalPWCCycleNum 106
NodesInCycles 4062
MaxNodesInSCC 1597
NullPointer 2315
PointsToConstPtr 15246
PointsToBlkPtr 0
#######################################################

SVF with extapi.c:
################ (program : bash.bc)###############

TotalTime 30.198
CollapseTime 0
SCCDetectTime 0
SCCMergeTime 0
LoadStoreTime 0
CopyGepTime 0
UpdateCGTime 0
AvgPtsSetSize 60.5401
AvgTopLvlPtsSize 176.517
TotalPointers 223771
TotalObjects 14036
IndCallSites 68
AddrProcessed 14944
CopyProcessed 123846
GepProcessed 38938
LoadProcessed 924289
StoreProcessed 300773
NumOfSFRs 0
NumOfFieldExpand 0
Pointers 222831
MemObjects 12772
DummyFieldPtrs 940
FieldObjs 1264
MaxPtsSetSize 323
SolveIterations 9
IndEdgeSolved 1349
NumOfSCCDetect 9
TotalCycleNum 212
TotalPWCCycleNum 25
NodesInCycles 2113
MaxNodesInSCC 263
NullPointer 576
PointsToConstPtr 12220
PointsToBlkPtr 0
#######################################################

SVF with ExtAPI.json:
Andersen Pointer Analysis Stats******
################ (program : bash.bc)###############

TotalTime 31.855
CollapseTime 0
SCCDetectTime 0
SCCMergeTime 0
LoadStoreTime 0
CopyGepTime 0
UpdateCGTime 0
AvgPtsSetSize 62.0863
AvgTopLvlPtsSize 180.973
TotalPointers 223360
TotalObjects 13954
IndCallSites 68
AddrProcessed 14853
CopyProcessed 120665
GepProcessed 36848
LoadProcessed 1107860
StoreProcessed 388316
NumOfSFRs 0
NumOfFieldExpand 0
Pointers 222421
MemObjects 12692
DummyFieldPtrs 939
FieldObjs 1262
MaxPtsSetSize 354
SolveIterations 9
IndEdgeSolved 1349
NumOfSCCDetect 9
TotalCycleNum 218
TotalPWCCycleNum 25
NodesInCycles 2153
MaxNodesInSCC 263
NullPointer 633
PointsToConstPtr 11601
PointsToBlkPtr 0
#######################################################

if (func.isDeclaration())
/// Remove unused function in extapi.bc module
/// if this function func defined in extapi.bc but never used in application code (without any corresponding declared functions).
if (mod.getName().str() == Options::ExtAPIInput() && func.getName().str() != "svf__main" && FunDefToDeclsMap.find(&func) == FunDefToDeclsMap.end()
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put this condition in a new method.

@@ -827,6 +830,94 @@ void LLVMModuleSet::buildFunToFunMap()
decls.push_back(decl);
}
}

/*
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put these comments before the function.

Fix AppDef -> ExtDef/ExtDef -> AppDef (overwrite).

Give each case an example.

@shuangxiangkan shuangxiangkan changed the title Replace ExAPI.json with extapi.c Replace ExAPI.json with extapi.c (extapi.c explaination wiki: https://github.com/SVF-tools/SVF/wiki/Handling-External-APIs-with-extapi.c) Aug 16, 2023
@yuleisui yuleisui merged commit 860b891 into SVF-tools:master Aug 16, 2023
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2 participants