/// Return the value this abstract attribute is associated with.
Value &getAssociatedValue() const {
- if (getArgNo() < 0 || isa<Argument>(&getAnchorValue()))
+ if (getCallSiteArgNo() < 0 || isa<Argument>(&getAnchorValue()))
return getAnchorValue();
assert(isa<CallBase>(&getAnchorValue()) && "Expected a call base!");
- return *cast<CallBase>(&getAnchorValue())->getArgOperand(getArgNo());
+ return *cast<CallBase>(&getAnchorValue())
+ ->getArgOperand(getCallSiteArgNo());
}
/// Return the type this abstract attribute is associated with.
return getAssociatedValue().getType();
}
- /// Return the argument number of the associated value if it is an argument or
- /// call site argument, otherwise a negative value.
- int getArgNo() const {
- switch (getPositionKind()) {
- case IRPosition::IRP_ARGUMENT:
- return cast<Argument>(getAsValuePtr())->getArgNo();
- case IRPosition::IRP_CALL_SITE_ARGUMENT: {
- Use &U = *getAsUsePtr();
- return cast<CallBase>(U.getUser())->getArgOperandNo(&U);
- }
- default:
- return -1;
- }
+ /// Return the callee argument number of the associated value if it is an
+ /// argument or call site argument, otherwise a negative value. In contrast to
+ /// `getCallSiteArgNo` this method will always return the "argument number"
+ /// from the perspective of the callee. This may not the same as the call site
+ /// if this is a callback call.
+ int getCalleeArgNo() const {
+ return getArgNo(/* CallbackCalleeArgIfApplicable */ true);
+ }
+
+ /// Return the call site argument number of the associated value if it is an
+ /// argument or call site argument, otherwise a negative value. In contrast to
+ /// `getCalleArgNo` this method will always return the "operand number" from
+ /// the perspective of the call site. This may not the same as the callee
+ /// perspective if this is a callback call.
+ int getCallSiteArgNo() const {
+ return getArgNo(/* CallbackCalleeArgIfApplicable */ false);
}
/// Return the index in the attribute list for this position.
return AttributeList::ReturnIndex;
case IRPosition::IRP_ARGUMENT:
case IRPosition::IRP_CALL_SITE_ARGUMENT:
- return getArgNo() + AttributeList::FirstArgIndex;
+ return getCallSiteArgNo() + AttributeList::FirstArgIndex;
}
llvm_unreachable(
"There is no attribute index for a floating or invalid position!");
}
}
+ /// Return true if the position is an argument or call site argument.
+ bool isArgumentPosition() const {
+ switch (getPositionKind()) {
+ case IRPosition::IRP_ARGUMENT:
+ case IRPosition::IRP_CALL_SITE_ARGUMENT:
+ return true;
+ default:
+ return false;
+ }
+ }
+
/// Special DenseMap key values.
///
///{
verify();
}
+ /// Return the callee argument number of the associated value if it is an
+ /// argument or call site argument. See also `getCalleeArgNo` and
+ /// `getCallSiteArgNo`.
+ int getArgNo(bool CallbackCalleeArgIfApplicable) const {
+ if (CallbackCalleeArgIfApplicable)
+ if (Argument *Arg = getAssociatedArgument())
+ return Arg->getArgNo();
+ switch (getPositionKind()) {
+ case IRPosition::IRP_ARGUMENT:
+ return cast<Argument>(getAsValuePtr())->getArgNo();
+ case IRPosition::IRP_CALL_SITE_ARGUMENT: {
+ Use &U = *getAsUsePtr();
+ return cast<CallBase>(U.getUser())->getArgOperandNo(&U);
+ }
+ default:
+ return -1;
+ }
+ }
+
/// IRPosition for the use \p U. The position kind \p PK needs to be
/// IRP_CALL_SITE_ARGUMENT, the anchor value is the user, the associated value
/// the used value.
Optional<StateType> T;
// The argument number which is also the call site argument number.
- unsigned ArgNo = QueryingAA.getIRPosition().getArgNo();
+ unsigned ArgNo = QueryingAA.getIRPosition().getCallSiteArgNo();
auto CallSiteCheck = [&](AbstractCallSite ACS) {
const IRPosition &ACSArgPos = IRPosition::callsite_argument(ACS, ArgNo);
void initialize(Attributor &A) override {
// See callsite argument attribute and callee argument attribute.
const auto &CB = cast<CallBase>(getAnchorValue());
- if (CB.paramHasAttr(getArgNo(), Attribute::NoAlias))
+ if (CB.paramHasAttr(getCallSiteArgNo(), Attribute::NoAlias))
indicateOptimisticFixpoint();
Value &Val = getAssociatedValue();
if (isa<ConstantPointerNull>(Val) &&
const AAMemoryBehavior &MemBehaviorAA,
const CallBase &CB, unsigned OtherArgNo) {
// We do not need to worry about aliasing with the underlying IRP.
- if (this->getArgNo() == (int)OtherArgNo)
+ if (this->getCalleeArgNo() == (int)OtherArgNo)
return false;
// If it is not a pointer or pointer vector we do not alias.
/// See AbstractAttribute::manifest(...).
ChangeStatus manifest(Attributor &A) override {
CallBase &CB = cast<CallBase>(getAnchorValue());
- Use &U = CB.getArgOperandUse(getArgNo());
+ Use &U = CB.getArgOperandUse(getCallSiteArgNo());
assert(!isa<UndefValue>(U.get()) &&
"Expected undef values to be filtered out!");
UndefValue &UV = *UndefValue::get(U->getType());
return;
}
- const Function *F = getArgNo() >= 0 ? getAssociatedFunction() : AnchorScope;
+ const Function *F = isArgumentPosition() ? getAssociatedFunction() : AnchorScope;
// Check what state the associated function can actually capture.
if (F)
if (!isAssumedNoCaptureMaybeReturned())
return;
- if (getArgNo() >= 0) {
+ if (isArgumentPosition()) {
if (isAssumedNoCapture())
Attrs.emplace_back(Attribute::get(Ctx, Attribute::NoCapture));
else if (ManifestInternal)
State.addKnownBits(NOT_CAPTURED_IN_RET);
// Check existing "returned" attributes.
- int ArgNo = IRP.getArgNo();
+ int ArgNo = IRP.getCalleeArgNo();
if (F.doesNotThrow() && ArgNo >= 0) {
for (unsigned u = 0, e = F.arg_size(); u < e; ++u)
if (F.hasParamAttribute(u, Attribute::Returned)) {
ChangeStatus AANoCaptureImpl::updateImpl(Attributor &A) {
const IRPosition &IRP = getIRPosition();
const Value *V =
- getArgNo() >= 0 ? IRP.getAssociatedArgument() : &IRP.getAssociatedValue();
+ isArgumentPosition() ? IRP.getAssociatedArgument() : &IRP.getAssociatedValue();
if (!V)
return indicatePessimisticFixpoint();
const Function *F =
- getArgNo() >= 0 ? IRP.getAssociatedFunction() : IRP.getAnchorScope();
+ isArgumentPosition() ? IRP.getAssociatedFunction() : IRP.getAnchorScope();
assert(F && "Expected a function!");
const IRPosition &FnPos = IRPosition::function(*F);
const auto &IsDeadAA =
auto PredForCallSite = [&](AbstractCallSite ACS) {
const IRPosition &ACSArgPos =
- IRPosition::callsite_argument(ACS, getArgNo());
+ IRPosition::callsite_argument(ACS, getCallSiteArgNo());
// Check if a coresponding argument was found or if it is on not
// associated (which can happen for callback calls).
if (ACSArgPos.getPositionKind() == IRPosition::IRP_INVALID)
? dyn_cast<Constant>(SimplifiedAssociatedValue.getValue())
: UndefValue::get(V.getType());
if (C) {
- Use &U = cast<CallBase>(&getAnchorValue())->getArgOperandUse(getArgNo());
+ Use &U = cast<CallBase>(&getAnchorValue())
+ ->getArgOperandUse(getCallSiteArgNo());
// We can replace the AssociatedValue with the constant.
if (&V != C && V.getType() == C->getType()) {
if (A.changeUseAfterManifest(U, *C))
return getAssociatedValue().getType()->getPointerElementType();
Optional<Type *> Ty;
- unsigned ArgNo = getIRPosition().getArgNo();
+ unsigned ArgNo = getIRPosition().getCallSiteArgNo();
// Make sure the associated call site argument has the same type at all call
// sites and it is an allocation we know is safe to privatize, for now that
; we deduce and propagate noalias and others properly.
define void @t1_caller(i32* noalias %a) {
+;
; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@t1_caller
; IS__TUNIT_OPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]]) {
; IS__TUNIT_OPM-NEXT: entry:
; IS__TUNIT_NPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__TUNIT_NPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__TUNIT_NPM-NEXT: store i32* [[B]], i32** [[C]], align 64
-; IS__TUNIT_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* noalias nocapture align 256 [[A]], i64 undef, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__TUNIT_NPM-NEXT: ret void
;
; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@t1_caller
; IS__CGSCC_NPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__CGSCC_NPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__CGSCC_NPM-NEXT: store i32* [[B]], i32** [[C]], align 64
-; IS__CGSCC_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* noalias nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__CGSCC_NPM-NEXT: ret void
;
entry:
;
; IS________NPM: Function Attrs: nosync
; IS________NPM-LABEL: define {{[^@]+}}@t1_callback_callee
-; IS________NPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* noalias nocapture align 256 [[A:%.*]], i64 [[B:%.*]], i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C:%.*]]) [[ATTR0:#.*]] {
+; IS________NPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* nocapture align 256 [[A:%.*]], i64 [[B:%.*]], i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C:%.*]]) [[ATTR0:#.*]] {
; IS________NPM-NEXT: entry:
; IS________NPM-NEXT: [[PTR_VAL:%.*]] = load i32, i32* [[PTR]], align 8
; IS________NPM-NEXT: store i32 [[PTR_VAL]], i32* [[IS_NOT_NULL]], align 4
; IS__TUNIT_NPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__TUNIT_NPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__TUNIT_NPM-NEXT: store i32* [[B]], i32** [[C]], align 64
-; IS__TUNIT_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* noalias nocapture align 256 [[A]], i64 undef, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__TUNIT_NPM-NEXT: ret void
;
; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@t2_caller
; IS__CGSCC_NPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__CGSCC_NPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__CGSCC_NPM-NEXT: store i32* [[B]], i32** [[C]], align 64
-; IS__CGSCC_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* noalias nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__CGSCC_NPM-NEXT: ret void
;
entry:
; IS__TUNIT_NPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__TUNIT_NPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__TUNIT_NPM-NEXT: store i32* [[B]], i32** [[C]], align 64
-; IS__TUNIT_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* noalias nocapture align 256 [[A]], i64 undef, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
-; IS__TUNIT_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* noalias nocapture align 256 [[A]], i64 undef, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__TUNIT_NPM-NEXT: ret void
;
; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@t3_caller
; IS__CGSCC_NPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__CGSCC_NPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__CGSCC_NPM-NEXT: store i32* [[B]], i32** [[C]], align 64
-; IS__CGSCC_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* noalias nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
-; IS__CGSCC_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* noalias nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__CGSCC_NPM-NEXT: ret void
;
entry: