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-rw-r--r--llvm/include/llvm/Transforms/IPO/Attributor.h5
-rw-r--r--llvm/lib/Transforms/IPO/Attributor.cpp275
-rw-r--r--llvm/test/Transforms/FunctionAttrs/align.ll2
-rw-r--r--llvm/test/Transforms/FunctionAttrs/arg_nocapture.ll2
-rw-r--r--llvm/test/Transforms/FunctionAttrs/arg_returned.ll2
-rw-r--r--llvm/test/Transforms/FunctionAttrs/dereferenceable.ll2
-rw-r--r--llvm/test/Transforms/FunctionAttrs/fn_noreturn.ll2
-rw-r--r--llvm/test/Transforms/FunctionAttrs/internal-noalias.ll2
-rw-r--r--llvm/test/Transforms/FunctionAttrs/liveness.ll2
-rw-r--r--llvm/test/Transforms/FunctionAttrs/noalias_returned.ll2
-rw-r--r--llvm/test/Transforms/FunctionAttrs/nofree-attributor.ll2
-rw-r--r--llvm/test/Transforms/FunctionAttrs/nonnull.ll2
-rw-r--r--llvm/test/Transforms/FunctionAttrs/noreturn_async.ll2
-rw-r--r--llvm/test/Transforms/FunctionAttrs/noreturn_sync.ll2
-rw-r--r--llvm/test/Transforms/FunctionAttrs/nounwind.ll2
-rw-r--r--llvm/test/Transforms/FunctionAttrs/read_write_returned_arguments_scc.ll2
16 files changed, 278 insertions, 30 deletions
diff --git a/llvm/include/llvm/Transforms/IPO/Attributor.h b/llvm/include/llvm/Transforms/IPO/Attributor.h
index 876e70aa907..f96a640125f 100644
--- a/llvm/include/llvm/Transforms/IPO/Attributor.h
+++ b/llvm/include/llvm/Transforms/IPO/Attributor.h
@@ -629,6 +629,11 @@ struct Attributor {
// No matching attribute found, create one.
auto &AA = AAType::createForPosition(IRP, *this);
registerAA(AA);
+
+ // Bootstrap the new attribute with an initial update to propagate
+ // information, e.g., function -> call site.
+ AA.update(*this);
+
if (TrackDependence && AA.getState().isValidState())
QueryMap[&AA].insert(const_cast<AbstractAttribute *>(&QueryingAA));
return AA;
diff --git a/llvm/lib/Transforms/IPO/Attributor.cpp b/llvm/lib/Transforms/IPO/Attributor.cpp
index 65590644acf..f5031a39a30 100644
--- a/llvm/lib/Transforms/IPO/Attributor.cpp
+++ b/llvm/lib/Transforms/IPO/Attributor.cpp
@@ -685,7 +685,34 @@ struct AANoUnwindFunction final : public AANoUnwindImpl {
};
/// NoUnwind attribute deduction for a call sites.
-using AANoUnwindCallSite = AANoUnwindFunction;
+struct AANoUnwindCallSite final : AANoUnwindImpl {
+ AANoUnwindCallSite(const IRPosition &IRP) : AANoUnwindImpl(IRP) {}
+
+ /// See AbstractAttribute::initialize(...).
+ void initialize(Attributor &A) override {
+ AANoUnwindImpl::initialize(A);
+ Function *F = getAssociatedFunction();
+ if (!F || !F->hasExactDefinition())
+ indicatePessimisticFixpoint();
+ }
+
+ /// See AbstractAttribute::updateImpl(...).
+ ChangeStatus updateImpl(Attributor &A) override {
+ // TODO: Once we have call site specific value information we can provide
+ // call site specific liveness information and then it makes
+ // sense to specialize attributes for call sites arguments instead of
+ // redirecting requests to the callee argument.
+ Function *F = getAssociatedFunction();
+ const IRPosition &FnPos = IRPosition::function(*F);
+ auto &FnAA = A.getAAFor<AANoUnwind>(*this, FnPos);
+ return clampStateAndIndicateChange(
+ getState(),
+ static_cast<const AANoUnwind::StateType &>(FnAA.getState()));
+ }
+
+ /// See AbstractAttribute::trackStatistics()
+ void trackStatistics() const override { STATS_DECLTRACK_CS_ATTR(nounwind); }
+};
/// --------------------- Function Return Values -------------------------------
@@ -1089,7 +1116,7 @@ struct AAReturnedValuesCallSite final : AAReturnedValuesImpl {
/// See AbstractAttribute::initialize(...).
void initialize(Attributor &A) override {
// TODO: Once we have call site specific value information we can provide
- // call site specific liveness liveness information and then it makes
+ // call site specific liveness information and then it makes
// sense to specialize attributes for call sites instead of
// redirecting requests to the callee.
llvm_unreachable("Abstract attributes for returned values are not "
@@ -1276,7 +1303,33 @@ struct AANoSyncFunction final : public AANoSyncImpl {
};
/// NoSync attribute deduction for a call sites.
-using AANoSyncCallSite = AANoSyncFunction;
+struct AANoSyncCallSite final : AANoSyncImpl {
+ AANoSyncCallSite(const IRPosition &IRP) : AANoSyncImpl(IRP) {}
+
+ /// See AbstractAttribute::initialize(...).
+ void initialize(Attributor &A) override {
+ AANoSyncImpl::initialize(A);
+ Function *F = getAssociatedFunction();
+ if (!F || !F->hasExactDefinition())
+ indicatePessimisticFixpoint();
+ }
+
+ /// See AbstractAttribute::updateImpl(...).
+ ChangeStatus updateImpl(Attributor &A) override {
+ // TODO: Once we have call site specific value information we can provide
+ // call site specific liveness information and then it makes
+ // sense to specialize attributes for call sites arguments instead of
+ // redirecting requests to the callee argument.
+ Function *F = getAssociatedFunction();
+ const IRPosition &FnPos = IRPosition::function(*F);
+ auto &FnAA = A.getAAFor<AANoSync>(*this, FnPos);
+ return clampStateAndIndicateChange(
+ getState(), static_cast<const AANoSync::StateType &>(FnAA.getState()));
+ }
+
+ /// See AbstractAttribute::trackStatistics()
+ void trackStatistics() const override { STATS_DECLTRACK_CS_ATTR(nosync); }
+};
/// ------------------------ No-Free Attributes ----------------------------
@@ -1320,7 +1373,33 @@ struct AANoFreeFunction final : public AANoFreeImpl {
};
/// NoFree attribute deduction for a call sites.
-using AANoFreeCallSite = AANoFreeFunction;
+struct AANoFreeCallSite final : AANoFreeImpl {
+ AANoFreeCallSite(const IRPosition &IRP) : AANoFreeImpl(IRP) {}
+
+ /// See AbstractAttribute::initialize(...).
+ void initialize(Attributor &A) override {
+ AANoFreeImpl::initialize(A);
+ Function *F = getAssociatedFunction();
+ if (!F || !F->hasExactDefinition())
+ indicatePessimisticFixpoint();
+ }
+
+ /// See AbstractAttribute::updateImpl(...).
+ ChangeStatus updateImpl(Attributor &A) override {
+ // TODO: Once we have call site specific value information we can provide
+ // call site specific liveness information and then it makes
+ // sense to specialize attributes for call sites arguments instead of
+ // redirecting requests to the callee argument.
+ Function *F = getAssociatedFunction();
+ const IRPosition &FnPos = IRPosition::function(*F);
+ auto &FnAA = A.getAAFor<AANoFree>(*this, FnPos);
+ return clampStateAndIndicateChange(
+ getState(), static_cast<const AANoFree::StateType &>(FnAA.getState()));
+ }
+
+ /// See AbstractAttribute::trackStatistics()
+ void trackStatistics() const override { STATS_DECLTRACK_CS_ATTR(nofree); }
+};
/// ------------------------ NonNull Argument Attribute ------------------------
struct AANonNullImpl : AANonNull {
@@ -1369,8 +1448,8 @@ struct AANonNullFloating : AANonNullImpl {
const auto &AA = A.getAAFor<AANonNull>(*this, IRPosition::value(V));
if (!Stripped && this == &AA) {
if (!isKnownNonZero(&V, DL, 0, /* TODO: AC */ nullptr,
- /* TODO: CtxI */ nullptr,
- /* TODO: DT */ nullptr))
+ /* TODO: CtxI */ nullptr,
+ /* TODO: DT */ nullptr))
T.indicatePessimisticFixpoint();
} else {
// Use abstract attribute information.
@@ -1461,7 +1540,35 @@ struct AANoRecurseFunction final : AANoRecurseImpl {
void trackStatistics() const override { STATS_DECLTRACK_FN_ATTR(norecurse) }
};
-using AANoRecurseCallSite = AANoRecurseFunction;
+/// NoRecurse attribute deduction for a call sites.
+struct AANoRecurseCallSite final : AANoRecurseImpl {
+ AANoRecurseCallSite(const IRPosition &IRP) : AANoRecurseImpl(IRP) {}
+
+ /// See AbstractAttribute::initialize(...).
+ void initialize(Attributor &A) override {
+ AANoRecurseImpl::initialize(A);
+ Function *F = getAssociatedFunction();
+ if (!F || !F->hasExactDefinition())
+ indicatePessimisticFixpoint();
+ }
+
+ /// See AbstractAttribute::updateImpl(...).
+ ChangeStatus updateImpl(Attributor &A) override {
+ // TODO: Once we have call site specific value information we can provide
+ // call site specific liveness information and then it makes
+ // sense to specialize attributes for call sites arguments instead of
+ // redirecting requests to the callee argument.
+ Function *F = getAssociatedFunction();
+ const IRPosition &FnPos = IRPosition::function(*F);
+ auto &FnAA = A.getAAFor<AANoRecurse>(*this, FnPos);
+ return clampStateAndIndicateChange(
+ getState(),
+ static_cast<const AANoRecurse::StateType &>(FnAA.getState()));
+ }
+
+ /// See AbstractAttribute::trackStatistics()
+ void trackStatistics() const override { STATS_DECLTRACK_CS_ATTR(norecurse); }
+};
/// ------------------------ Will-Return Attributes ----------------------------
@@ -1537,7 +1644,34 @@ struct AAWillReturnFunction final : AAWillReturnImpl {
};
/// WillReturn attribute deduction for a call sites.
-using AAWillReturnCallSite = AAWillReturnFunction;
+struct AAWillReturnCallSite final : AAWillReturnImpl {
+ AAWillReturnCallSite(const IRPosition &IRP) : AAWillReturnImpl(IRP) {}
+
+ /// See AbstractAttribute::initialize(...).
+ void initialize(Attributor &A) override {
+ AAWillReturnImpl::initialize(A);
+ Function *F = getAssociatedFunction();
+ if (!F || !F->hasExactDefinition())
+ indicatePessimisticFixpoint();
+ }
+
+ /// See AbstractAttribute::updateImpl(...).
+ ChangeStatus updateImpl(Attributor &A) override {
+ // TODO: Once we have call site specific value information we can provide
+ // call site specific liveness information and then it makes
+ // sense to specialize attributes for call sites arguments instead of
+ // redirecting requests to the callee argument.
+ Function *F = getAssociatedFunction();
+ const IRPosition &FnPos = IRPosition::function(*F);
+ auto &FnAA = A.getAAFor<AAWillReturn>(*this, FnPos);
+ return clampStateAndIndicateChange(
+ getState(),
+ static_cast<const AAWillReturn::StateType &>(FnAA.getState()));
+ }
+
+ /// See AbstractAttribute::trackStatistics()
+ void trackStatistics() const override { STATS_DECLTRACK_CS_ATTR(willreturn); }
+};
/// ------------------------ NoAlias Argument Attribute ------------------------
@@ -1652,7 +1786,33 @@ struct AANoAliasReturned final : AANoAliasImpl {
};
/// NoAlias attribute deduction for a call site return value.
-using AANoAliasCallSiteReturned = AANoAliasReturned;
+struct AANoAliasCallSiteReturned final : AANoAliasImpl {
+ AANoAliasCallSiteReturned(const IRPosition &IRP) : AANoAliasImpl(IRP) {}
+
+ /// See AbstractAttribute::initialize(...).
+ void initialize(Attributor &A) override {
+ AANoAliasImpl::initialize(A);
+ Function *F = getAssociatedFunction();
+ if (!F || !F->hasExactDefinition())
+ indicatePessimisticFixpoint();
+ }
+
+ /// See AbstractAttribute::updateImpl(...).
+ ChangeStatus updateImpl(Attributor &A) override {
+ // TODO: Once we have call site specific value information we can provide
+ // call site specific liveness information and then it makes
+ // sense to specialize attributes for call sites arguments instead of
+ // redirecting requests to the callee argument.
+ Function *F = getAssociatedFunction();
+ const IRPosition &FnPos = IRPosition::returned(*F);
+ auto &FnAA = A.getAAFor<AANoAlias>(*this, FnPos);
+ return clampStateAndIndicateChange(
+ getState(), static_cast<const AANoAlias::StateType &>(FnAA.getState()));
+ }
+
+ /// See AbstractAttribute::trackStatistics()
+ void trackStatistics() const override { STATS_DECLTRACK_CS_ATTR(noalias); }
+};
/// -------------------AAIsDead Function Attribute-----------------------
@@ -1833,8 +1993,9 @@ struct AAIsDeadFunction final : public AAIsDeadImpl {
/// See AbstractAttribute::trackStatistics()
void trackStatistics() const override {
- STATS_DECL(DeadInternalFunction, Function,
- "Number of internal functions classified as dead (no live callsite)");
+ STATS_DECL(
+ DeadInternalFunction, Function,
+ "Number of internal functions classified as dead (no live callsite)");
BUILD_STAT_NAME(DeadInternalFunction, Function) +=
(getAssociatedFunction()->hasInternalLinkage() &&
AssumedLiveBlocks.empty())
@@ -1979,7 +2140,7 @@ struct AAIsDeadCallSite final : AAIsDeadImpl {
/// See AbstractAttribute::initialize(...).
void initialize(Attributor &A) override {
// TODO: Once we have call site specific value information we can provide
- // call site specific liveness liveness information and then it makes
+ // call site specific liveness information and then it makes
// sense to specialize attributes for call sites instead of
// redirecting requests to the callee.
llvm_unreachable("Abstract attributes for liveness are not "
@@ -2148,7 +2309,7 @@ struct AADereferenceableArgument final
IRP) {}
/// See AbstractAttribute::trackStatistics()
- void trackStatistics() const override{
+ void trackStatistics() const override {
STATS_DECLTRACK_ARG_ATTR(dereferenceable)
}
};
@@ -2165,7 +2326,36 @@ struct AADereferenceableCallSiteArgument final : AADereferenceableFloating {
};
/// Dereferenceable attribute deduction for a call site return value.
-using AADereferenceableCallSiteReturned = AADereferenceableReturned;
+struct AADereferenceableCallSiteReturned final : AADereferenceableImpl {
+ AADereferenceableCallSiteReturned(const IRPosition &IRP)
+ : AADereferenceableImpl(IRP) {}
+
+ /// See AbstractAttribute::initialize(...).
+ void initialize(Attributor &A) override {
+ AADereferenceableImpl::initialize(A);
+ Function *F = getAssociatedFunction();
+ if (!F || !F->hasExactDefinition())
+ indicatePessimisticFixpoint();
+ }
+
+ /// See AbstractAttribute::updateImpl(...).
+ ChangeStatus updateImpl(Attributor &A) override {
+ // TODO: Once we have call site specific value information we can provide
+ // call site specific liveness information and then it makes
+ // sense to specialize attributes for call sites arguments instead of
+ // redirecting requests to the callee argument.
+ Function *F = getAssociatedFunction();
+ const IRPosition &FnPos = IRPosition::returned(*F);
+ auto &FnAA = A.getAAFor<AADereferenceable>(*this, FnPos);
+ return clampStateAndIndicateChange(
+ getState(), static_cast<const DerefState &>(FnAA.getState()));
+ }
+
+ /// See AbstractAttribute::trackStatistics()
+ void trackStatistics() const override {
+ STATS_DECLTRACK_CS_ATTR(dereferenceable);
+ }
+};
// ------------------------ Align Argument Attribute ------------------------
@@ -2305,7 +2495,33 @@ struct AAAlignCallSiteArgument final : AAAlignFloating {
};
/// Align attribute deduction for a call site return value.
-using AAAlignCallSiteReturned = AAAlignReturned;
+struct AAAlignCallSiteReturned final : AAAlignImpl {
+ AAAlignCallSiteReturned(const IRPosition &IRP) : AAAlignImpl(IRP) {}
+
+ /// See AbstractAttribute::initialize(...).
+ void initialize(Attributor &A) override {
+ AAAlignImpl::initialize(A);
+ Function *F = getAssociatedFunction();
+ if (!F || !F->hasExactDefinition())
+ indicatePessimisticFixpoint();
+ }
+
+ /// See AbstractAttribute::updateImpl(...).
+ ChangeStatus updateImpl(Attributor &A) override {
+ // TODO: Once we have call site specific value information we can provide
+ // call site specific liveness information and then it makes
+ // sense to specialize attributes for call sites arguments instead of
+ // redirecting requests to the callee argument.
+ Function *F = getAssociatedFunction();
+ const IRPosition &FnPos = IRPosition::returned(*F);
+ auto &FnAA = A.getAAFor<AAAlign>(*this, FnPos);
+ return clampStateAndIndicateChange(
+ getState(), static_cast<const AAAlign::StateType &>(FnAA.getState()));
+ }
+
+ /// See AbstractAttribute::trackStatistics()
+ void trackStatistics() const override { STATS_DECLTRACK_CS_ATTR(align); }
+};
/// ------------------ Function No-Return Attribute ----------------------------
struct AANoReturnImpl : public AANoReturn {
@@ -2340,7 +2556,34 @@ struct AANoReturnFunction final : AANoReturnImpl {
};
/// NoReturn attribute deduction for a call sites.
-using AANoReturnCallSite = AANoReturnFunction;
+struct AANoReturnCallSite final : AANoReturnImpl {
+ AANoReturnCallSite(const IRPosition &IRP) : AANoReturnImpl(IRP) {}
+
+ /// See AbstractAttribute::initialize(...).
+ void initialize(Attributor &A) override {
+ AANoReturnImpl::initialize(A);
+ Function *F = getAssociatedFunction();
+ if (!F || !F->hasExactDefinition())
+ indicatePessimisticFixpoint();
+ }
+
+ /// See AbstractAttribute::updateImpl(...).
+ ChangeStatus updateImpl(Attributor &A) override {
+ // TODO: Once we have call site specific value information we can provide
+ // call site specific liveness information and then it makes
+ // sense to specialize attributes for call sites arguments instead of
+ // redirecting requests to the callee argument.
+ Function *F = getAssociatedFunction();
+ const IRPosition &FnPos = IRPosition::function(*F);
+ auto &FnAA = A.getAAFor<AANoReturn>(*this, FnPos);
+ return clampStateAndIndicateChange(
+ getState(),
+ static_cast<const AANoReturn::StateType &>(FnAA.getState()));
+ }
+
+ /// See AbstractAttribute::trackStatistics()
+ void trackStatistics() const override { STATS_DECLTRACK_CS_ATTR(noreturn); }
+};
/// ----------------------------------------------------------------------------
/// Attributor
diff --git a/llvm/test/Transforms/FunctionAttrs/align.ll b/llvm/test/Transforms/FunctionAttrs/align.ll
index e3fff44ce23..32cff1f7599 100644
--- a/llvm/test/Transforms/FunctionAttrs/align.ll
+++ b/llvm/test/Transforms/FunctionAttrs/align.ll
@@ -1,4 +1,4 @@
-; RUN: opt -attributor -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=14 -S < %s | FileCheck %s --check-prefix=ATTRIBUTOR
+; RUN: opt -attributor -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=6 -S < %s | FileCheck %s --check-prefix=ATTRIBUTOR
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
diff --git a/llvm/test/Transforms/FunctionAttrs/arg_nocapture.ll b/llvm/test/Transforms/FunctionAttrs/arg_nocapture.ll
index 5905575c820..ff23fdf2f7c 100644
--- a/llvm/test/Transforms/FunctionAttrs/arg_nocapture.ll
+++ b/llvm/test/Transforms/FunctionAttrs/arg_nocapture.ll
@@ -1,4 +1,4 @@
-; RUN: opt -functionattrs -attributor -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=16 -S < %s | FileCheck %s
+; RUN: opt -functionattrs -attributor -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=8 -S < %s | FileCheck %s
;
; Test cases specifically designed for the "no-capture" argument attribute.
; We use FIXME's to indicate problems and missing attributes.
diff --git a/llvm/test/Transforms/FunctionAttrs/arg_returned.ll b/llvm/test/Transforms/FunctionAttrs/arg_returned.ll
index 9a4cc4d68ec..5b1b3f808e3 100644
--- a/llvm/test/Transforms/FunctionAttrs/arg_returned.ll
+++ b/llvm/test/Transforms/FunctionAttrs/arg_returned.ll
@@ -1,5 +1,5 @@
; RUN: opt -functionattrs -S < %s | FileCheck %s --check-prefix=FNATTR
-; RUN: opt -attributor -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=22 -S < %s | FileCheck %s --check-prefix=ATTRIBUTOR
+; RUN: opt -attributor -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=9 -S < %s | FileCheck %s --check-prefix=ATTRIBUTOR
; RUN: opt -attributor -attributor-disable=false -functionattrs -S < %s | FileCheck %s --check-prefix=BOTH
;
; Test cases specifically designed for the "returned" argument attribute.
diff --git a/llvm/test/Transforms/FunctionAttrs/dereferenceable.ll b/llvm/test/Transforms/FunctionAttrs/dereferenceable.ll
index 3121ba6144c..05455cecc20 100644
--- a/llvm/test/Transforms/FunctionAttrs/dereferenceable.ll
+++ b/llvm/test/Transforms/FunctionAttrs/dereferenceable.ll
@@ -1,4 +1,4 @@
-; RUN: opt -attributor --attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=5 -S < %s | FileCheck %s --check-prefixes=ATTRIBUTOR
+; RUN: opt -attributor --attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=4 -S < %s | FileCheck %s --check-prefixes=ATTRIBUTOR
declare void @deref_phi_user(i32* %a);
diff --git a/llvm/test/Transforms/FunctionAttrs/fn_noreturn.ll b/llvm/test/Transforms/FunctionAttrs/fn_noreturn.ll
index d0112394a17..d8258be7d2c 100644
--- a/llvm/test/Transforms/FunctionAttrs/fn_noreturn.ll
+++ b/llvm/test/Transforms/FunctionAttrs/fn_noreturn.ll
@@ -1,4 +1,4 @@
-; RUN: opt -functionattrs -attributor -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=4 -S < %s | FileCheck %s
+; RUN: opt -functionattrs -attributor -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=3 -S < %s | FileCheck %s
;
; Test cases specifically designed for the "no-return" function attribute.
; We use FIXME's to indicate problems and missing attributes.
diff --git a/llvm/test/Transforms/FunctionAttrs/internal-noalias.ll b/llvm/test/Transforms/FunctionAttrs/internal-noalias.ll
index b580c5a33b2..3fe17c5b5c1 100644
--- a/llvm/test/Transforms/FunctionAttrs/internal-noalias.ll
+++ b/llvm/test/Transforms/FunctionAttrs/internal-noalias.ll
@@ -1,4 +1,4 @@
-; RUN: opt -S -attributor -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=9 < %s | FileCheck %s
+; RUN: opt -S -attributor -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=8 < %s | FileCheck %s
define dso_local i32 @visible(i32* noalias %A, i32* noalias %B) #0 {
entry:
diff --git a/llvm/test/Transforms/FunctionAttrs/liveness.ll b/llvm/test/Transforms/FunctionAttrs/liveness.ll
index 7dc392c674d..2ef023259a5 100644
--- a/llvm/test/Transforms/FunctionAttrs/liveness.ll
+++ b/llvm/test/Transforms/FunctionAttrs/liveness.ll
@@ -1,4 +1,4 @@
-; RUN: opt -attributor --attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=7 -S < %s | FileCheck %s
+; RUN: opt -attributor --attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=4 -S < %s | FileCheck %s
declare void @no_return_call() nofree noreturn nounwind readnone
diff --git a/llvm/test/Transforms/FunctionAttrs/noalias_returned.ll b/llvm/test/Transforms/FunctionAttrs/noalias_returned.ll
index ce28ed3f29a..50811942ccc 100644
--- a/llvm/test/Transforms/FunctionAttrs/noalias_returned.ll
+++ b/llvm/test/Transforms/FunctionAttrs/noalias_returned.ll
@@ -1,4 +1,4 @@
-; RUN: opt -S -attributor -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=8 < %s | FileCheck %s
+; RUN: opt -S -attributor -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=5 < %s | FileCheck %s
; TEST 1 - negative.
diff --git a/llvm/test/Transforms/FunctionAttrs/nofree-attributor.ll b/llvm/test/Transforms/FunctionAttrs/nofree-attributor.ll
index de6058b04da..3166092fe1f 100644
--- a/llvm/test/Transforms/FunctionAttrs/nofree-attributor.ll
+++ b/llvm/test/Transforms/FunctionAttrs/nofree-attributor.ll
@@ -1,5 +1,5 @@
; RUN: opt -functionattrs --disable-nofree-inference=false -S < %s | FileCheck %s --check-prefix=FNATTR
-; RUN: opt -attributor --attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=8 -S < %s | FileCheck %s --check-prefix=ATTRIBUTOR
+; RUN: opt -attributor --attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=6 -S < %s | FileCheck %s --check-prefix=ATTRIBUTOR
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
diff --git a/llvm/test/Transforms/FunctionAttrs/nonnull.ll b/llvm/test/Transforms/FunctionAttrs/nonnull.ll
index b311c6f5587..458df2d988a 100644
--- a/llvm/test/Transforms/FunctionAttrs/nonnull.ll
+++ b/llvm/test/Transforms/FunctionAttrs/nonnull.ll
@@ -1,6 +1,6 @@
; RUN: opt -S -functionattrs -enable-nonnull-arg-prop %s | FileCheck %s --check-prefixes=BOTH,FNATTR
; RUN: opt -S -passes=function-attrs -enable-nonnull-arg-prop %s | FileCheck %s --check-prefixes=BOTH,FNATTR
-; RUN: opt -attributor --attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=10 -S < %s | FileCheck %s --check-prefixes=BOTH,ATTRIBUTOR
+; RUN: opt -attributor --attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=9 -S < %s | FileCheck %s --check-prefixes=BOTH,ATTRIBUTOR
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
diff --git a/llvm/test/Transforms/FunctionAttrs/noreturn_async.ll b/llvm/test/Transforms/FunctionAttrs/noreturn_async.ll
index 57174d4d90d..b7e9b0f4058 100644
--- a/llvm/test/Transforms/FunctionAttrs/noreturn_async.ll
+++ b/llvm/test/Transforms/FunctionAttrs/noreturn_async.ll
@@ -1,4 +1,4 @@
-; RUN: opt -functionattrs -attributor -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=4 -S < %s | FileCheck %s
+; RUN: opt -functionattrs -attributor -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=3 -S < %s | FileCheck %s
;
; This file is the same as noreturn_sync.ll but with a personality which
; indicates that the exception handler *can* catch asynchronous exceptions. As
diff --git a/llvm/test/Transforms/FunctionAttrs/noreturn_sync.ll b/llvm/test/Transforms/FunctionAttrs/noreturn_sync.ll
index 4caf74cb967..fb9e8e62cb7 100644
--- a/llvm/test/Transforms/FunctionAttrs/noreturn_sync.ll
+++ b/llvm/test/Transforms/FunctionAttrs/noreturn_sync.ll
@@ -1,4 +1,4 @@
-; RUN: opt -functionattrs -attributor -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=6 -S < %s | FileCheck %s
+; RUN: opt -functionattrs -attributor -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=4 -S < %s | FileCheck %s
;
; This file is the same as noreturn_async.ll but with a personality which
; indicates that the exception handler *cannot* catch asynchronous exceptions.
diff --git a/llvm/test/Transforms/FunctionAttrs/nounwind.ll b/llvm/test/Transforms/FunctionAttrs/nounwind.ll
index c2c30f0fe38..50a229dcb3d 100644
--- a/llvm/test/Transforms/FunctionAttrs/nounwind.ll
+++ b/llvm/test/Transforms/FunctionAttrs/nounwind.ll
@@ -1,5 +1,5 @@
; RUN: opt < %s -functionattrs -S | FileCheck %s
-; RUN: opt < %s -attributor -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=10 -S | FileCheck %s --check-prefix=ATTRIBUTOR
+; RUN: opt < %s -attributor -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=4 -S | FileCheck %s --check-prefix=ATTRIBUTOR
; TEST 1
; CHECK: Function Attrs: norecurse nounwind readnone
diff --git a/llvm/test/Transforms/FunctionAttrs/read_write_returned_arguments_scc.ll b/llvm/test/Transforms/FunctionAttrs/read_write_returned_arguments_scc.ll
index d95dd2d028d..c3b76c9581c 100644
--- a/llvm/test/Transforms/FunctionAttrs/read_write_returned_arguments_scc.ll
+++ b/llvm/test/Transforms/FunctionAttrs/read_write_returned_arguments_scc.ll
@@ -1,4 +1,4 @@
-; RUN: opt -functionattrs -enable-nonnull-arg-prop -attributor -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=21 -S < %s | FileCheck %s
+; RUN: opt -functionattrs -enable-nonnull-arg-prop -attributor -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=6 -S < %s | FileCheck %s
;
; This is an evolved example to stress test SCC parameter attribute propagation.
; The SCC in this test is made up of the following six function, three of which
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