mirror of
https://github.com/RPCSX/llvm.git
synced 2024-11-23 19:59:57 +00:00
Revert "[sanitizer-coverage] one more flavor of coverage: -fsanitize-coverage=inline-8bit-counters. Experimental so far, not documenting yet."
This reverts commit r304630, as it broke ARM/AArch64 bots for 2 days. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304698 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Renato Golin
parent
ca0adcb320
commit
3b482e4bca
@ -177,7 +177,6 @@ struct SanitizerCoverageOptions {
|
||||
bool Use8bitCounters = false;
|
||||
bool TracePC = false;
|
||||
bool TracePCGuard = false;
|
||||
bool Inline8bitCounters = false;
|
||||
bool NoPrune = false;
|
||||
|
||||
SanitizerCoverageOptions() = default;
|
||||
|
||||
@ -57,11 +57,8 @@ static const char *const SanCovTracePCGuardName =
|
||||
"__sanitizer_cov_trace_pc_guard";
|
||||
static const char *const SanCovTracePCGuardInitName =
|
||||
"__sanitizer_cov_trace_pc_guard_init";
|
||||
static const char *const SanCov8bitCountersInitName =
|
||||
"__sanitizer_cov_8bit_counters_init";
|
||||
|
||||
static const char *const SanCovGuardsSectionName = "sancov_guards";
|
||||
static const char *const SanCovCountersSectionName = "sancov_counters";
|
||||
|
||||
static cl::opt<int> ClCoverageLevel(
|
||||
"sanitizer-coverage-level",
|
||||
@ -69,18 +66,14 @@ static cl::opt<int> ClCoverageLevel(
|
||||
"3: all blocks and critical edges"),
|
||||
cl::Hidden, cl::init(0));
|
||||
|
||||
static cl::opt<bool> ClTracePC("sanitizer-coverage-trace-pc",
|
||||
cl::desc("Experimental pc tracing"), cl::Hidden,
|
||||
cl::init(false));
|
||||
static cl::opt<bool> ClExperimentalTracePC("sanitizer-coverage-trace-pc",
|
||||
cl::desc("Experimental pc tracing"),
|
||||
cl::Hidden, cl::init(false));
|
||||
|
||||
static cl::opt<bool> ClTracePCGuard("sanitizer-coverage-trace-pc-guard",
|
||||
cl::desc("pc tracing with a guard"),
|
||||
cl::Hidden, cl::init(false));
|
||||
|
||||
static cl::opt<bool> ClInline8bitCounters("sanitizer-coverage-inline-8bit-counters",
|
||||
cl::desc("increments 8-bit counter for every edge"),
|
||||
cl::Hidden, cl::init(false));
|
||||
|
||||
static cl::opt<bool>
|
||||
ClCMPTracing("sanitizer-coverage-trace-compares",
|
||||
cl::desc("Tracing of CMP and similar instructions"),
|
||||
@ -132,10 +125,9 @@ SanitizerCoverageOptions OverrideFromCL(SanitizerCoverageOptions Options) {
|
||||
Options.TraceCmp |= ClCMPTracing;
|
||||
Options.TraceDiv |= ClDIVTracing;
|
||||
Options.TraceGep |= ClGEPTracing;
|
||||
Options.TracePC |= ClTracePC;
|
||||
Options.TracePC |= ClExperimentalTracePC;
|
||||
Options.TracePCGuard |= ClTracePCGuard;
|
||||
Options.Inline8bitCounters |= ClInline8bitCounters;
|
||||
if (!Options.TracePCGuard && !Options.TracePC && !Options.Inline8bitCounters)
|
||||
if (!Options.TracePCGuard && !Options.TracePC)
|
||||
Options.TracePCGuard = true; // TracePCGuard is default.
|
||||
Options.NoPrune |= !ClPruneBlocks;
|
||||
return Options;
|
||||
@ -177,11 +169,6 @@ private:
|
||||
void CreateInitCallForSection(Module &M, const char *InitFunctionName,
|
||||
Type *Ty, const std::string &Section);
|
||||
|
||||
void SetNoSanitizeMetadata(Instruction *I) {
|
||||
I->setMetadata(I->getModule()->getMDKindID("nosanitize"),
|
||||
MDNode::get(*C, None));
|
||||
}
|
||||
|
||||
std::string getSectionName(const std::string &Section) const;
|
||||
std::string getSectionStart(const std::string &Section) const;
|
||||
std::string getSectionEnd(const std::string &Section) const;
|
||||
@ -192,15 +179,13 @@ private:
|
||||
Function *SanCovTraceGepFunction;
|
||||
Function *SanCovTraceSwitchFunction;
|
||||
InlineAsm *EmptyAsm;
|
||||
Type *IntptrTy, *IntptrPtrTy, *Int64Ty, *Int64PtrTy, *Int32Ty, *Int32PtrTy,
|
||||
*Int8Ty, *Int8PtrTy;
|
||||
Type *IntptrTy, *IntptrPtrTy, *Int64Ty, *Int64PtrTy, *Int32Ty, *Int32PtrTy;
|
||||
Module *CurModule;
|
||||
Triple TargetTriple;
|
||||
LLVMContext *C;
|
||||
const DataLayout *DL;
|
||||
|
||||
GlobalVariable *FunctionGuardArray; // for trace-pc-guard.
|
||||
GlobalVariable *Function8bitCounterArray; // for inline-8bit-counters.
|
||||
|
||||
SanitizerCoverageOptions Options;
|
||||
};
|
||||
@ -242,17 +227,14 @@ bool SanitizerCoverageModule::runOnModule(Module &M) {
|
||||
CurModule = &M;
|
||||
TargetTriple = Triple(M.getTargetTriple());
|
||||
FunctionGuardArray = nullptr;
|
||||
Function8bitCounterArray = nullptr;
|
||||
IntptrTy = Type::getIntNTy(*C, DL->getPointerSizeInBits());
|
||||
IntptrPtrTy = PointerType::getUnqual(IntptrTy);
|
||||
Type *VoidTy = Type::getVoidTy(*C);
|
||||
IRBuilder<> IRB(*C);
|
||||
Int64PtrTy = PointerType::getUnqual(IRB.getInt64Ty());
|
||||
Int32PtrTy = PointerType::getUnqual(IRB.getInt32Ty());
|
||||
Int8PtrTy = PointerType::getUnqual(IRB.getInt8Ty());
|
||||
Int64Ty = IRB.getInt64Ty();
|
||||
Int32Ty = IRB.getInt32Ty();
|
||||
Int8Ty = IRB.getInt8Ty();
|
||||
|
||||
SanCovTracePCIndir = checkSanitizerInterfaceFunction(
|
||||
M.getOrInsertFunction(SanCovTracePCIndirName, VoidTy, IntptrTy));
|
||||
@ -298,9 +280,6 @@ bool SanitizerCoverageModule::runOnModule(Module &M) {
|
||||
if (FunctionGuardArray)
|
||||
CreateInitCallForSection(M, SanCovTracePCGuardInitName, Int32PtrTy,
|
||||
SanCovGuardsSectionName);
|
||||
if (Function8bitCounterArray)
|
||||
CreateInitCallForSection(M, SanCov8bitCountersInitName, Int8PtrTy,
|
||||
SanCovCountersSectionName);
|
||||
|
||||
return true;
|
||||
}
|
||||
@ -441,9 +420,6 @@ void SanitizerCoverageModule::CreateFunctionLocalArrays(size_t NumGuards,
|
||||
if (Options.TracePCGuard)
|
||||
FunctionGuardArray = CreateFunctionLocalArrayInSection(
|
||||
NumGuards, F, Int32Ty, SanCovGuardsSectionName);
|
||||
if (Options.Inline8bitCounters)
|
||||
Function8bitCounterArray = CreateFunctionLocalArrayInSection(
|
||||
NumGuards, F, Int8Ty, SanCovCountersSectionName);
|
||||
}
|
||||
|
||||
bool SanitizerCoverageModule::InjectCoverage(Function &F,
|
||||
@ -476,7 +452,7 @@ void SanitizerCoverageModule::InjectCoverageForIndirectCalls(
|
||||
Function &F, ArrayRef<Instruction *> IndirCalls) {
|
||||
if (IndirCalls.empty())
|
||||
return;
|
||||
assert(Options.TracePC || Options.TracePCGuard || Options.Inline8bitCounters);
|
||||
assert(Options.TracePC || Options.TracePCGuard);
|
||||
for (auto I : IndirCalls) {
|
||||
IRBuilder<> IRB(I);
|
||||
CallSite CS(I);
|
||||
@ -604,8 +580,8 @@ void SanitizerCoverageModule::InjectCoverageAtBlock(Function &F, BasicBlock &BB,
|
||||
if (Options.TracePC) {
|
||||
IRB.CreateCall(SanCovTracePC); // gets the PC using GET_CALLER_PC.
|
||||
IRB.CreateCall(EmptyAsm, {}); // Avoids callback merge.
|
||||
}
|
||||
if (Options.TracePCGuard) {
|
||||
} else {
|
||||
assert(Options.TracePCGuard);
|
||||
auto GuardPtr = IRB.CreateIntToPtr(
|
||||
IRB.CreateAdd(IRB.CreatePointerCast(FunctionGuardArray, IntptrTy),
|
||||
ConstantInt::get(IntptrTy, Idx * 4)),
|
||||
@ -613,16 +589,6 @@ void SanitizerCoverageModule::InjectCoverageAtBlock(Function &F, BasicBlock &BB,
|
||||
IRB.CreateCall(SanCovTracePCGuard, GuardPtr);
|
||||
IRB.CreateCall(EmptyAsm, {}); // Avoids callback merge.
|
||||
}
|
||||
if (Options.Inline8bitCounters) {
|
||||
auto CounterPtr = IRB.CreateGEP(
|
||||
Function8bitCounterArray,
|
||||
{ConstantInt::get(IntptrTy, 0), ConstantInt::get(IntptrTy, Idx)});
|
||||
auto Load = IRB.CreateLoad(CounterPtr);
|
||||
auto Inc = IRB.CreateAdd(Load, ConstantInt::get(Int8Ty, 1));
|
||||
auto Store = IRB.CreateStore(Inc, CounterPtr);
|
||||
SetNoSanitizeMetadata(Load);
|
||||
SetNoSanitizeMetadata(Store);
|
||||
}
|
||||
}
|
||||
|
||||
std::string
|
||||
|
||||
@ -1,13 +0,0 @@
|
||||
; Test -sanitizer-coverage-inline-8bit-counters=1
|
||||
; RUN: opt < %s -sancov -sanitizer-coverage-level=1 -sanitizer-coverage-inline-8bit-counters=1 -S | FileCheck %s
|
||||
|
||||
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
|
||||
target triple = "x86_64-unknown-linux-gnu"
|
||||
define void @foo() {
|
||||
entry:
|
||||
; CHECK: %0 = load i8, i8* getelementptr inbounds ([1 x i8], [1 x i8]* @__sancov_gen_, i64 0, i64 0), !nosanitize
|
||||
; CHECK: %1 = add i8 %0, 1
|
||||
; CHECK: store i8 %1, i8* getelementptr inbounds ([1 x i8], [1 x i8]* @__sancov_gen_, i64 0, i64 0), !nosanitize
|
||||
ret void
|
||||
}
|
||||
; CHECK: call void @__sanitizer_cov_8bit_counters_init(i8* bitcast (i8** @__start___sancov_counters to i8*), i8* bitcast (i8** @__stop___sancov_counters to i8*))
|
||||
Loading…
Reference in New Issue
Block a user