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[WPD/LowerTypeTests] Delay lowering/removal of type tests until after ICP 

Summary:
Currently type test assume sequences inserted for devirtualization are
removed during WPD. This patch delays their removal until later in the
optimization pipeline. This is an enabler for upcoming enhancements to
indirect call promotion, for example streamlined promotion guard
sequences that compare against vtable address instead of the target
function, when there are small number of possible vtables (either
determined via WPD or by in-progress type profiling). We need the type
tests to correlate the callsites with the address point offset needed in
the compare sequence, and optionally to associated type summary info
computed during WPD.

This depends on work in D71913 to enable invocation of LowerTypeTests to
drop type test assume sequences, which will now be invoked following ICP
in the ThinLTO post-LTO link pipelines, and also after the existing
export phase LowerTypeTests invocation in regular LTO (which is already
after ICP). We cannot simply move the existing import phase
LowerTypeTests pass later in the ThinLTO post link pipelines, as the
comment in PassBuilder.cpp notes (it must run early because when
performing CFI other passes may disturb the sequences it looks for).

This necessitated adding a new type test resolution "Unknown" that we
can use on the type test assume sequences previously removed by WPD,
that we now want LTT to ignore.

Depends on D71913.

Reviewers: pcc, evgeny777

Subscribers: mehdi_amini, Prazek, hiraditya, steven_wu, dexonsmith, arphaman, davidxl, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D73242
This commit is contained in:
Teresa Johnson 2020-01-22 14:06:23 -08:00
parent b198f16e1e
commit 748bb5a0f1
21 changed files with 101 additions and 43 deletions
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5
llvm/include/llvm/IR/ModuleSummaryIndex.h
View File

@ -833,7 +833,8 @@ struct TypeTestResolution {
Single, ///< Single element (last example in "Short Inline Bit Vectors")
AllOnes, ///< All-ones bit vector ("Eliminating Bit Vector Checks for
/// All-Ones Bit Vectors")
} TheKind = Unsat;
Unknown, ///< Unknown (analysis not performed, don't lower)
} TheKind = Unknown;
/// Range of size-1 expressed as a bit width. For example, if the size is in
/// range [1,256], this number will be 8. This helps generate the most compact
@ -1026,7 +1027,7 @@ public:
// in the way some record are interpreted, like flags for instance.
// Note that incrementing this may require changes in both BitcodeReader.cpp
// and BitcodeWriter.cpp.
static constexpr uint64_t BitcodeSummaryVersion = 8;
static constexpr uint64_t BitcodeSummaryVersion = 9;
// Regular LTO module name for ASM writer
static constexpr const char *getRegularLTOModuleName() {

1
llvm/include/llvm/IR/ModuleSummaryIndexYAML.h
View File

@ -17,6 +17,7 @@ namespace yaml {
template <> struct ScalarEnumerationTraits<TypeTestResolution::Kind> {
static void enumeration(IO &io, TypeTestResolution::Kind &value) {
io.enumCase(value, "Unknown", TypeTestResolution::Unknown);
io.enumCase(value, "Unsat", TypeTestResolution::Unsat);
io.enumCase(value, "ByteArray", TypeTestResolution::ByteArray);
io.enumCase(value, "Inline", TypeTestResolution::Inline);

3
llvm/lib/AsmParser/LLParser.cpp
View File

@ -7660,6 +7660,9 @@ bool LLParser::ParseTypeTestResolution(TypeTestResolution &TTRes) {
return true;
switch (Lex.getKind()) {
case lltok::kw_unknown:
TTRes.TheKind = TypeTestResolution::Unknown;
break;
case lltok::kw_unsat:
TTRes.TheKind = TypeTestResolution::Unsat;
break;

2
llvm/lib/IR/AsmWriter.cpp
View File

@ -2772,6 +2772,8 @@ static const char *getWholeProgDevirtResByArgKindName(
static const char *getTTResKindName(TypeTestResolution::Kind K) {
switch (K) {
case TypeTestResolution::Unknown:
return "unknown";
case TypeTestResolution::Unsat:
return "unsat";
case TypeTestResolution::ByteArray:

16
llvm/lib/Passes/PassBuilder.cpp
View File

@ -748,6 +748,12 @@ PassBuilder::buildModuleSimplificationPipeline(OptimizationLevel Level,
true /* SamplePGO */));
}
// Lower type metadata and the type.test intrinsic in the ThinLTO
// post link pipeline after ICP. This is to enable usage of the type
// tests in ICP sequences.
if (Phase == ThinLTOPhase::PostLink)
MPM.addPass(LowerTypeTestsPass(nullptr, nullptr, true));
// Interprocedural constant propagation now that basic cleanup has occurred
// and prior to optimizing globals.
// FIXME: This position in the pipeline hasn't been carefully considered in
@ -1170,6 +1176,9 @@ PassBuilder::buildLTODefaultPipeline(OptimizationLevel Level, bool DebugLogging,
// metadata and intrinsics.
MPM.addPass(WholeProgramDevirtPass(ExportSummary, nullptr));
MPM.addPass(LowerTypeTestsPass(ExportSummary, nullptr));
// Run a second time to clean up any type tests left behind by WPD for use
// in ICP.
MPM.addPass(LowerTypeTestsPass(nullptr, nullptr, true));
return MPM;
}
@ -1236,6 +1245,10 @@ PassBuilder::buildLTODefaultPipeline(OptimizationLevel Level, bool DebugLogging,
// The LowerTypeTestsPass needs to run to lower type metadata and the
// type.test intrinsics. The pass does nothing if CFI is disabled.
MPM.addPass(LowerTypeTestsPass(ExportSummary, nullptr));
// Run a second time to clean up any type tests left behind by WPD for use
// in ICP (which is performed earlier than this in the regular LTO
// pipeline).
MPM.addPass(LowerTypeTestsPass(nullptr, nullptr, true));
return MPM;
}
@ -1363,6 +1376,9 @@ PassBuilder::buildLTODefaultPipeline(OptimizationLevel Level, bool DebugLogging,
// to be run at link time if CFI is enabled. This pass does nothing if
// CFI is disabled.
MPM.addPass(LowerTypeTestsPass(ExportSummary, nullptr));
// Run a second time to clean up any type tests left behind by WPD for use
// in ICP (which is performed earlier than this in the regular LTO pipeline).
MPM.addPass(LowerTypeTestsPass(nullptr, nullptr, true));
// Enable splitting late in the FullLTO post-link pipeline. This is done in
// the same stage in the old pass manager (\ref addLateLTOOptimizationPasses).

15
llvm/lib/Transforms/IPO/LowerTypeTests.cpp
View File

@ -735,6 +735,9 @@ static bool isKnownTypeIdMember(Metadata *TypeId, const DataLayout &DL,
/// replace the call with.
Value *LowerTypeTestsModule::lowerTypeTestCall(Metadata *TypeId, CallInst *CI,
const TypeIdLowering &TIL) {
// Delay lowering if the resolution is currently unknown.
if (TIL.TheKind == TypeTestResolution::Unknown)
return nullptr;
if (TIL.TheKind == TypeTestResolution::Unsat)
return ConstantInt::getFalse(M.getContext());
@ -1043,8 +1046,10 @@ void LowerTypeTestsModule::importTypeTest(CallInst *CI) {
TypeIdLowering TIL = importTypeId(TypeIdStr->getString());
Value *Lowered = lowerTypeTestCall(TypeIdStr, CI, TIL);
CI->replaceAllUsesWith(Lowered);
CI->eraseFromParent();
if (Lowered) {
CI->replaceAllUsesWith(Lowered);
CI->eraseFromParent();
}
}
// ThinLTO backend: the function F has a jump table entry; update this module
@ -1167,8 +1172,10 @@ void LowerTypeTestsModule::lowerTypeTestCalls(
for (CallInst *CI : TIUI.CallSites) {
++NumTypeTestCallsLowered;
Value *Lowered = lowerTypeTestCall(TypeId, CI, TIL);
CI->replaceAllUsesWith(Lowered);
CI->eraseFromParent();
if (Lowered) {
CI->replaceAllUsesWith(Lowered);
CI->eraseFromParent();
}
}
}
}

12
llvm/lib/Transforms/IPO/PassManagerBuilder.cpp
View File

@ -503,6 +503,7 @@ void PassManagerBuilder::populateModulePassManager(
MPM.add(createBarrierNoopPass());
if (PerformThinLTO) {
MPM.add(createLowerTypeTestsPass(nullptr, nullptr, true));
// Drop available_externally and unreferenced globals. This is necessary
// with ThinLTO in order to avoid leaving undefined references to dead
// globals in the object file.
@ -536,9 +537,11 @@ void PassManagerBuilder::populateModulePassManager(
// inter-module indirect calls. For that we perform indirect call promotion
// earlier in the pass pipeline, here before globalopt. Otherwise imported
// available_externally functions look unreferenced and are removed.
if (PerformThinLTO)
if (PerformThinLTO) {
MPM.add(createPGOIndirectCallPromotionLegacyPass(/*InLTO = */ true,
!PGOSampleUse.empty()));
MPM.add(createLowerTypeTestsPass(nullptr, nullptr, true));
}
// For SamplePGO in ThinLTO compile phase, we do not want to unroll loops
// as it will change the CFG too much to make the 2nd profile annotation
@ -1038,8 +1041,8 @@ void PassManagerBuilder::populateThinLTOPassManager(
PM.add(createVerifierPass());
if (ImportSummary) {
// These passes import type identifier resolutions for whole-program
// devirtualization and CFI. They must run early because other passes may
// This pass imports type identifier resolutions for whole-program
// devirtualization and CFI. It must run early because other passes may
// disturb the specific instruction patterns that these passes look for,
// creating dependencies on resolutions that may not appear in the summary.
//
@ -1087,6 +1090,9 @@ void PassManagerBuilder::populateLTOPassManager(legacy::PassManagerBase &PM) {
// control flow integrity mechanisms (-fsanitize=cfi*) and needs to run at
// link time if CFI is enabled. The pass does nothing if CFI is disabled.
PM.add(createLowerTypeTestsPass(ExportSummary, nullptr));
// Run a second time to clean up any type tests left behind by WPD for use
// in ICP (which is performed earlier than this in the regular LTO pipeline).
PM.add(createLowerTypeTestsPass(nullptr, nullptr, true));
if (OptLevel != 0)
addLateLTOOptimizationPasses(PM);

54
llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp
View File

@ -510,7 +510,9 @@ struct DevirtModule {
bool areRemarksEnabled();
void scanTypeTestUsers(Function *TypeTestFunc);
void
scanTypeTestUsers(Function *TypeTestFunc,
DenseMap<Metadata *, std::set<TypeMemberInfo>> &TypeIdMap);
void scanTypeCheckedLoadUsers(Function *TypeCheckedLoadFunc);
void buildTypeIdentifierMap(
@ -1666,7 +1668,9 @@ bool DevirtModule::areRemarksEnabled() {
return false;
}
void DevirtModule::scanTypeTestUsers(Function *TypeTestFunc) {
void DevirtModule::scanTypeTestUsers(
Function *TypeTestFunc,
DenseMap<Metadata *, std::set<TypeMemberInfo>> &TypeIdMap) {
// Find all virtual calls via a virtual table pointer %p under an assumption
// of the form llvm.assume(llvm.type.test(%p, %md)). This indicates that %p
// points to a member of the type identifier %md. Group calls by (type ID,
@ -1686,10 +1690,10 @@ void DevirtModule::scanTypeTestUsers(Function *TypeTestFunc) {
auto &DT = LookupDomTree(*CI->getFunction());
findDevirtualizableCallsForTypeTest(DevirtCalls, Assumes, CI, DT);
Metadata *TypeId =
cast<MetadataAsValue>(CI->getArgOperand(1))->getMetadata();
// If we found any, add them to CallSlots.
if (!Assumes.empty()) {
Metadata *TypeId =
cast<MetadataAsValue>(CI->getArgOperand(1))->getMetadata();
Value *Ptr = CI->getArgOperand(0)->stripPointerCasts();
for (DevirtCallSite Call : DevirtCalls) {
// Only add this CallSite if we haven't seen it before. The vtable
@ -1702,6 +1706,13 @@ void DevirtModule::scanTypeTestUsers(Function *TypeTestFunc) {
}
}
// If we have any uses on type metadata, keep the type test assumes for
// later analysis. Otherwise remove as they aren't useful, and
// LowerTypeTests will think they are Unsat and lower to False, which
// breaks any uses on assumes.
if (TypeIdMap.count(TypeId))
continue;
// We no longer need the assumes or the type test.
for (auto Assume : Assumes)
Assume->eraseFromParent();
@ -1900,8 +1911,13 @@ bool DevirtModule::run() {
(!TypeCheckedLoadFunc || TypeCheckedLoadFunc->use_empty()))
return false;
// Rebuild type metadata into a map for easy lookup.
std::vector<VTableBits> Bits;
DenseMap<Metadata *, std::set<TypeMemberInfo>> TypeIdMap;
buildTypeIdentifierMap(Bits, TypeIdMap);
if (TypeTestFunc && AssumeFunc)
scanTypeTestUsers(TypeTestFunc);
scanTypeTestUsers(TypeTestFunc, TypeIdMap);
if (TypeCheckedLoadFunc)
scanTypeCheckedLoadUsers(TypeCheckedLoadFunc);
@ -1923,10 +1939,6 @@ bool DevirtModule::run() {
return true;
}
// Rebuild type metadata into a map for easy lookup.
std::vector<VTableBits> Bits;
DenseMap<Metadata *, std::set<TypeMemberInfo>> TypeIdMap;
buildTypeIdentifierMap(Bits, TypeIdMap);
if (TypeIdMap.empty())
return true;
@ -1983,14 +1995,17 @@ bool DevirtModule::run() {
// function implementation at offset S.first.ByteOffset, and add to
// TargetsForSlot.
std::vector<VirtualCallTarget> TargetsForSlot;
WholeProgramDevirtResolution *Res = nullptr;
if (ExportSummary && isa<MDString>(S.first.TypeID))
// Create the type id summary resolution regardlness of whether we can
// devirtualize, so that lower type tests knows the type id is used on
// a global and not Unsat.
Res = &ExportSummary
->getOrInsertTypeIdSummary(
cast<MDString>(S.first.TypeID)->getString())
.WPDRes[S.first.ByteOffset];
if (tryFindVirtualCallTargets(TargetsForSlot, TypeIdMap[S.first.TypeID],
S.first.ByteOffset)) {
WholeProgramDevirtResolution *Res = nullptr;
if (ExportSummary && isa<MDString>(S.first.TypeID))
Res = &ExportSummary
->getOrInsertTypeIdSummary(
cast<MDString>(S.first.TypeID)->getString())
.WPDRes[S.first.ByteOffset];
if (!trySingleImplDevirt(ExportSummary, TargetsForSlot, S.second, Res)) {
DidVirtualConstProp |=
@ -2104,11 +2119,14 @@ void DevirtIndex::run() {
std::vector<ValueInfo> TargetsForSlot;
auto TidSummary = ExportSummary.getTypeIdCompatibleVtableSummary(S.first.TypeID);
assert(TidSummary);
// Create the type id summary resolution regardlness of whether we can
// devirtualize, so that lower type tests knows the type id is used on
// a global and not Unsat.
WholeProgramDevirtResolution *Res =
&ExportSummary.getOrInsertTypeIdSummary(S.first.TypeID)
.WPDRes[S.first.ByteOffset];
if (tryFindVirtualCallTargets(TargetsForSlot, *TidSummary,
S.first.ByteOffset)) {
WholeProgramDevirtResolution *Res =
&ExportSummary.getOrInsertTypeIdSummary(S.first.TypeID)
.WPDRes[S.first.ByteOffset];
if (!trySingleImplDevirt(TargetsForSlot, S.first, S.second, Res,
DevirtTargets))

2
llvm/test/Bitcode/summary_version.ll
View File

@ -2,7 +2,7 @@
; RUN: opt -module-summary %s -o - | llvm-bcanalyzer -dump | FileCheck %s
; CHECK: <GLOBALVAL_SUMMARY_BLOCK
; CHECK: <VERSION op0=8/>
; CHECK: <VERSION op0=9/>

1
llvm/test/Other/new-pm-lto-defaults.ll
View File

@ -92,6 +92,7 @@
; CHECK-O2-NEXT: Running analysis: DemandedBitsAnalysis
; CHECK-O2-NEXT: Running pass: CrossDSOCFIPass
; CHECK-O2-NEXT: Running pass: LowerTypeTestsPass
; CHECK-O-NEXT: Running pass: LowerTypeTestsPass
; CHECK-O2-NEXT: Running pass: ModuleToFunctionPassAdaptor<{{.*}}SimplifyCFGPass>
; CHECK-O2-NEXT: Running pass: EliminateAvailableExternallyPass
; CHECK-O2-NEXT: Running pass: GlobalDCEPass

1
llvm/test/Other/new-pm-thinlto-defaults.ll
View File

@ -79,6 +79,7 @@
; CHECK-O-NEXT: Running pass: LowerExpectIntrinsicPass
; CHECK-O3-NEXT: Running pass: CallSiteSplittingPass
; CHECK-O-NEXT: Finished llvm::Function pass manager run.
; CHECK-POSTLINK-O-NEXT: Running pass: LowerTypeTestsPass
; CHECK-O-NEXT: Running pass: IPSCCPPass
; CHECK-O-NEXT: Running pass: CalledValuePropagationPass
; CHECK-O-NEXT: Running pass: GlobalOptPass

1
llvm/test/Other/new-pm-thinlto-postlink-pgo-defaults.ll
View File

@ -48,6 +48,7 @@
; CHECK-O-NEXT: Running pass: LowerExpectIntrinsicPass
; CHECK-O3-NEXT: Running pass: CallSiteSplittingPass
; CHECK-O-NEXT: Finished {{.*}}Function pass manager run.
; CHECK-O-NEXT: Running pass: LowerTypeTestsPass
; CHECK-O-NEXT: Running pass: IPSCCPPass
; CHECK-O-NEXT: Running pass: CalledValuePropagationPass
; CHECK-O-NEXT: Running pass: GlobalOptPass

1
llvm/test/Other/new-pm-thinlto-postlink-samplepgo-defaults.ll
View File

@ -59,6 +59,7 @@
; CHECK-O-NEXT: Running analysis: CallGraphAnalysis
; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}ProfileSummaryAnalysis
; CHECK-O-NEXT: Running pass: PGOIndirectCallPromotion
; CHECK-O-NEXT: Running pass: LowerTypeTestsPass
; CHECK-O-NEXT: Running pass: IPSCCPPass
; CHECK-O-NEXT: Running pass: CalledValuePropagationPass
; CHECK-O-NEXT: Running pass: GlobalOptPass

6
llvm/test/Transforms/WholeProgramDevirt/branch-funnel.ll
View File

@ -10,7 +10,7 @@
; SUMMARY: TypeIdMap:
; SUMMARY-NEXT: typeid3:
; SUMMARY-NEXT: TTRes:
; SUMMARY-NEXT: Kind: Unsat
; SUMMARY-NEXT: Kind: Unknown
; SUMMARY-NEXT: SizeM1BitWidth: 0
; SUMMARY-NEXT: AlignLog2: 0
; SUMMARY-NEXT: SizeM1: 0
@ -23,7 +23,7 @@
; SUMMARY-NEXT: ResByArg:
; SUMMARY-NEXT: typeid1:
; SUMMARY-NEXT: TTRes:
; SUMMARY-NEXT: Kind: Unsat
; SUMMARY-NEXT: Kind: Unknown
; SUMMARY-NEXT: SizeM1BitWidth: 0
; SUMMARY-NEXT: AlignLog2: 0
; SUMMARY-NEXT: SizeM1: 0
@ -36,7 +36,7 @@
; SUMMARY-NEXT: ResByArg:
; SUMMARY-NEXT: typeid2:
; SUMMARY-NEXT: TTRes:
; SUMMARY-NEXT: Kind: Unsat
; SUMMARY-NEXT: Kind: Unknown
; SUMMARY-NEXT: SizeM1BitWidth: 0
; SUMMARY-NEXT: AlignLog2: 0
; SUMMARY-NEXT: SizeM1: 0

2
llvm/test/Transforms/WholeProgramDevirt/devirt-single-impl2.ll
View File

@ -14,7 +14,7 @@
; RUN: -wholeprogramdevirt-summary-action=export -o /dev/null 2>&1 | FileCheck %s --check-prefix=MISSING-MODULE
; Check single impl devirtulation in summary
; CHECK: typeid: (name: "_ZTS1A", summary: (typeTestRes: (kind: unsat, sizeM1BitWidth: 0), wpdResolutions: ((offset: 0, wpdRes: (kind: singleImpl, singleImplName: "_ZNK1A1fEv"))))) ; guid
; CHECK: typeid: (name: "_ZTS1A", summary: (typeTestRes: (kind: unknown, sizeM1BitWidth: 0), wpdResolutions: ((offset: 0, wpdRes: (kind: singleImpl, singleImplName: "_ZNK1A1fEv"))))) ; guid
; MISSING-MODULE: combined summary should contain Regular LTO module

8
llvm/test/Transforms/WholeProgramDevirt/export-single-impl.ll
View File

@ -4,7 +4,7 @@
; SUMMARY: TypeIdMap:
; SUMMARY-NEXT: typeid3:
; SUMMARY-NEXT: TTRes:
; SUMMARY-NEXT: Kind: Unsat
; SUMMARY-NEXT: Kind: Unknown
; SUMMARY-NEXT: SizeM1BitWidth: 0
; SUMMARY-NEXT: AlignLog2: 0
; SUMMARY-NEXT: SizeM1: 0
@ -17,7 +17,7 @@
; SUMMARY-NEXT: ResByArg:
; SUMMARY-NEXT: typeid1:
; SUMMARY-NEXT: TTRes:
; SUMMARY-NEXT: Kind: Unsat
; SUMMARY-NEXT: Kind: Unknown
; SUMMARY-NEXT: SizeM1BitWidth: 0
; SUMMARY-NEXT: AlignLog2: 0
; SUMMARY-NEXT: SizeM1: 0
@ -30,7 +30,7 @@
; SUMMARY-NEXT: ResByArg:
; SUMMARY-NEXT: typeid2:
; SUMMARY-NEXT: TTRes:
; SUMMARY-NEXT: Kind: Unsat
; SUMMARY-NEXT: Kind: Unknown
; SUMMARY-NEXT: SizeM1BitWidth: 0
; SUMMARY-NEXT: AlignLog2: 0
; SUMMARY-NEXT: SizeM1: 0
@ -43,7 +43,7 @@
; SUMMARY-NEXT: ResByArg:
; SUMMARY-NEXT: typeid4:
; SUMMARY-NEXT: TTRes:
; SUMMARY-NEXT: Kind: Unsat
; SUMMARY-NEXT: Kind: Unknown
; SUMMARY-NEXT: SizeM1BitWidth: 0
; SUMMARY-NEXT: AlignLog2: 0
; SUMMARY-NEXT: SizeM1: 0

2
llvm/test/Transforms/WholeProgramDevirt/export-uniform-ret-val.ll
View File

@ -6,7 +6,7 @@
; SUMMARY: TypeIdMap:
; SUMMARY-NEXT: typeid4:
; SUMMARY-NEXT: TTRes:
; SUMMARY-NEXT: Kind: Unsat
; SUMMARY-NEXT: Kind: Unknown
; SUMMARY-NEXT: SizeM1BitWidth: 0
; SUMMARY-NEXT: AlignLog2: 0
; SUMMARY-NEXT: SizeM1: 0

4
llvm/test/Transforms/WholeProgramDevirt/export-unique-ret-val.ll
View File

@ -6,7 +6,7 @@
; SUMMARY: TypeIdMap:
; SUMMARY-NEXT: typeid3:
; SUMMARY-NEXT: TTRes:
; SUMMARY-NEXT: Kind: Unsat
; SUMMARY-NEXT: Kind: Unknown
; SUMMARY-NEXT: SizeM1BitWidth: 0
; SUMMARY-NEXT: AlignLog2: 0
; SUMMARY-NEXT: SizeM1: 0
@ -24,7 +24,7 @@
; SUMMARY-NEXT: Bit: 0
; SUMMARY-NEXT: typeid4:
; SUMMARY-NEXT: TTRes:
; SUMMARY-NEXT: Kind: Unsat
; SUMMARY-NEXT: Kind: Unknown
; SUMMARY-NEXT: SizeM1BitWidth: 0
; SUMMARY-NEXT: AlignLog2: 0
; SUMMARY-NEXT: SizeM1: 0

4
llvm/test/Transforms/WholeProgramDevirt/export-vcp.ll
View File

@ -9,7 +9,7 @@ target datalayout = "e-p:64:64"
; SUMMARY: TypeIdMap:
; SUMMARY-NEXT: typeid3:
; SUMMARY-NEXT: TTRes:
; SUMMARY-NEXT: Kind: Unsat
; SUMMARY-NEXT: Kind: Unknown
; SUMMARY-NEXT: SizeM1BitWidth: 0
; SUMMARY-NEXT: AlignLog2: 0
; SUMMARY-NEXT: SizeM1: 0
@ -29,7 +29,7 @@ target datalayout = "e-p:64:64"
; SUMMARY-ARM-NEXT: Bit: 1
; SUMMARY-NEXT: typeid4:
; SUMMARY-NEXT: TTRes:
; SUMMARY-NEXT: Kind: Unsat
; SUMMARY-NEXT: Kind: Unknown
; SUMMARY-NEXT: SizeM1BitWidth: 0
; SUMMARY-NEXT: AlignLog2: 0
; SUMMARY-NEXT: SizeM1: 0

2
llvm/test/Transforms/WholeProgramDevirt/import-indir.ll
View File

@ -32,7 +32,7 @@
; SUMMARY-NEXT: TypeIdMap:
; SUMMARY-NEXT: typeid1:
; SUMMARY-NEXT: TTRes:
; SUMMARY-NEXT: Kind: Unsat
; SUMMARY-NEXT: Kind: Unknown
; SUMMARY-NEXT: SizeM1BitWidth: 0
; SUMMARY-NEXT: AlignLog2: 0
; SUMMARY-NEXT: SizeM1: 0

2
llvm/test/Transforms/WholeProgramDevirt/uniform-retval.ll
View File

@ -25,7 +25,7 @@ define i32 @call(i8* %obj) {
%fptr = load i8*, i8** %fptrptr
%fptr_casted = bitcast i8* %fptr to i32 (i8*)*
%result = call i32 %fptr_casted(i8* %obj)
; CHECK-NOT: call
; CHECK-NOT: call i32 %
; CHECK: ret i32 123
ret i32 %result
}