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[Sanitizers] Use getParamByValType() (NFC)

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Instead of fetching the pointer element type.
This commit is contained in:
Nikita Popov 2020-05-18 21:50:15 +02:00
parent 63eeb3f8ce
commit 0a9209ea96
2 changed files with 6 additions and 7 deletions
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2
lib/Transforms/Instrumentation/AddressSanitizer.cpp
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@ -2901,7 +2901,7 @@ void FunctionStackPoisoner::copyArgsPassedByValToAllocas() {
const DataLayout &DL = F.getParent()->getDataLayout();
for (Argument &Arg : F.args()) {
if (Arg.hasByValAttr()) {
Type *Ty = Arg.getType()->getPointerElementType();
Type *Ty = Arg.getParamByValType();
const Align Alignment =
DL.getValueOrABITypeAlignment(Arg.getParamAlign(), Ty);

11
lib/Transforms/Instrumentation/MemorySanitizer.cpp
View File

@ -1637,7 +1637,7 @@ struct MemorySanitizerVisitor : public InstVisitor<MemorySanitizerVisitor> {
}
unsigned Size =
FArg.hasByValAttr()
? DL.getTypeAllocSize(FArg.getType()->getPointerElementType())
? DL.getTypeAllocSize(FArg.getParamByValType())
: DL.getTypeAllocSize(FArg.getType());
if (A == &FArg) {
bool Overflow = ArgOffset + Size > kParamTLSSize;
@ -1647,8 +1647,7 @@ struct MemorySanitizerVisitor : public InstVisitor<MemorySanitizerVisitor> {
// argument shadow to the underlying memory.
// Figure out maximal valid memcpy alignment.
const Align ArgAlign = DL.getValueOrABITypeAlignment(
MaybeAlign(FArg.getParamAlignment()),
A->getType()->getPointerElementType());
MaybeAlign(FArg.getParamAlignment()), FArg.getParamByValType());
Value *CpShadowPtr =
getShadowOriginPtr(V, EntryIRB, EntryIRB.getInt8Ty(), ArgAlign,
/*isStore*/ true)
@ -3378,7 +3377,7 @@ struct MemorySanitizerVisitor : public InstVisitor<MemorySanitizerVisitor> {
if (CB.paramHasAttr(i, Attribute::ByVal)) {
assert(A->getType()->isPointerTy() &&
"ByVal argument is not a pointer!");
Size = DL.getTypeAllocSize(A->getType()->getPointerElementType());
Size = DL.getTypeAllocSize(CB.getParamByValType(i));
if (ArgOffset + Size > kParamTLSSize) break;
const MaybeAlign ParamAlignment(CB.getParamAlign(i));
MaybeAlign Alignment = llvm::None;
@ -3874,7 +3873,7 @@ struct VarArgAMD64Helper : public VarArgHelper {
if (IsFixed)
continue;
assert(A->getType()->isPointerTy());
Type *RealTy = A->getType()->getPointerElementType();
Type *RealTy = CB.getParamByValType(ArgNo);
uint64_t ArgSize = DL.getTypeAllocSize(RealTy);
Value *ShadowBase = getShadowPtrForVAArgument(
RealTy, IRB, OverflowOffset, alignTo(ArgSize, 8));
@ -4491,7 +4490,7 @@ struct VarArgPowerPC64Helper : public VarArgHelper {
bool IsByVal = CB.paramHasAttr(ArgNo, Attribute::ByVal);
if (IsByVal) {
assert(A->getType()->isPointerTy());
Type *RealTy = A->getType()->getPointerElementType();
Type *RealTy = CB.getParamByValType(ArgNo);
uint64_t ArgSize = DL.getTypeAllocSize(RealTy);
MaybeAlign ArgAlign = CB.getParamAlign(ArgNo);
if (!ArgAlign || *ArgAlign < Align(8))