Index: include/llvm/Analysis/CGSCCPassManager.h
===================================================================
--- include/llvm/Analysis/CGSCCPassManager.h
+++ include/llvm/Analysis/CGSCCPassManager.h
@@ -441,7 +441,10 @@
PreservedAnalyses PassPA = Pass.run(*C, CGAM, CG, UR);
- PI.runAfterPass<LazyCallGraph::SCC>(Pass, *C);
+ if (UR.InvalidatedSCCs.count(C))
+ PI.runAfterPassInvalidated<LazyCallGraph::SCC>(Pass);
+ else
+ PI.runAfterPass<LazyCallGraph::SCC>(Pass, *C);
// Update the SCC and RefSCC if necessary.
C = UR.UpdatedC ? UR.UpdatedC : C;
@@ -762,7 +765,10 @@
PreservedAnalyses PassPA = Pass.run(*C, AM, CG, UR);
- PI.runAfterPass<LazyCallGraph::SCC>(Pass, *C);
+ if (UR.InvalidatedSCCs.count(C))
+ PI.runAfterPassInvalidated<LazyCallGraph::SCC>(Pass);
+ else
+ PI.runAfterPass<LazyCallGraph::SCC>(Pass, *C);
// If the SCC structure has changed, bail immediately and let the outer
// CGSCC layer handle any iteration to reflect the refined structure.
Index: include/llvm/IR/PassInstrumentation.h
===================================================================
--- include/llvm/IR/PassInstrumentation.h
+++ include/llvm/IR/PassInstrumentation.h
@@ -68,10 +68,13 @@
/// PassInstrumentation to pass control to the registered callbacks.
class PassInstrumentationCallbacks {
public:
- // Before/After callbacks accept IRUnits, so they need to take them
- // as pointers, wrapped with llvm::Any
+ // Before/After callbacks accept IRUnits whenever appropriate, so they need
+ // to take them as constant pointers, wrapped with llvm::Any.
+ // For the case when IRUnit has been invalidated there is a different
+ // callback to use - AfterPassInvalidated.
using BeforePassFunc = bool(StringRef, Any);
using AfterPassFunc = void(StringRef, Any);
+ using AfterPassInvalidatedFunc = void(StringRef);
using BeforeAnalysisFunc = void(StringRef, Any);
using AfterAnalysisFunc = void(StringRef, Any);
@@ -90,6 +93,11 @@
AfterPassCallbacks.emplace_back(std::move(C));
}
+ template <typename CallableT>
+ void registerAfterPassInvalidatedCallback(CallableT C) {
+ AfterPassInvalidatedCallbacks.emplace_back(std::move(C));
+ }
+
template <typename CallableT>
void registerBeforeAnalysisCallback(CallableT C) {
BeforeAnalysisCallbacks.emplace_back(std::move(C));
@@ -105,6 +113,8 @@
SmallVector<llvm::unique_function<BeforePassFunc>, 4> BeforePassCallbacks;
SmallVector<llvm::unique_function<AfterPassFunc>, 4> AfterPassCallbacks;
+ SmallVector<llvm::unique_function<AfterPassInvalidatedFunc>, 4>
+ AfterPassInvalidatedCallbacks;
SmallVector<llvm::unique_function<BeforeAnalysisFunc>, 4>
BeforeAnalysisCallbacks;
SmallVector<llvm::unique_function<AfterAnalysisFunc>, 4>
@@ -139,7 +149,7 @@
}
/// AfterPass instrumentation point - takes \p Pass instance that has
- /// just been executed and constant reference to IR it operates on.
+ /// just been executed and constant reference to \p IR it operates on.
template <typename IRUnitT, typename PassT>
void runAfterPass(const PassT &Pass, const IRUnitT &IR) const {
if (Callbacks)
@@ -147,6 +157,16 @@
C(Pass.name(), llvm::Any(&IR));
}
+ /// AfterPassInvalidated instrumentation point - takes \p Pass instance
+ /// that has just been executed. For use when IR has been invalidated
+ /// by \p Pass execution.
+ template <typename IRUnitT, typename PassT>
+ void runAfterPassInvalidated(const PassT &Pass) const {
+ if (Callbacks)
+ for (auto &C : Callbacks->AfterPassInvalidatedCallbacks)
+ C(Pass.name());
+ }
+
/// BeforeAnalysis instrumentation point - takes \p Analysis instance
/// to be executed and constant reference to IR it operates on.
template <typename IRUnitT, typename PassT>
Index: include/llvm/IR/PassTimingInfo.h
===================================================================
--- include/llvm/IR/PassTimingInfo.h
+++ include/llvm/IR/PassTimingInfo.h
@@ -99,8 +99,8 @@
void stopTimer(StringRef PassID);
// Implementation of pass instrumentation callbacks.
- bool runBeforePass(StringRef PassID, Any IR);
- void runAfterPass(StringRef PassID, Any IR);
+ bool runBeforePass(StringRef PassID);
+ void runAfterPass(StringRef PassID);
};
} // namespace llvm
Index: include/llvm/Transforms/Scalar/LoopPassManager.h
===================================================================
--- include/llvm/Transforms/Scalar/LoopPassManager.h
+++ include/llvm/Transforms/Scalar/LoopPassManager.h
@@ -352,7 +352,11 @@
continue;
PreservedAnalyses PassPA = Pass.run(*L, LAM, LAR, Updater);
- PI.runAfterPass<Loop>(Pass, *L);
+ // Do not pass deleted Loop into the instrumentation.
+ if (Updater.skipCurrentLoop())
+ PI.runAfterPassInvalidated<Loop>(Pass);
+ else
+ PI.runAfterPass<Loop>(Pass, *L);
// FIXME: We should verify the set of analyses relevant to Loop passes
// are preserved.
Index: lib/Analysis/CGSCCPassManager.cpp
===================================================================
--- lib/Analysis/CGSCCPassManager.cpp
+++ lib/Analysis/CGSCCPassManager.cpp
@@ -79,7 +79,10 @@
PreservedAnalyses PassPA = Pass->run(*C, AM, G, UR);
- PI.runAfterPass(*Pass, *C);
+ if (UR.InvalidatedSCCs.count(C))
+ PI.runAfterPassInvalidated<LazyCallGraph::SCC>(*Pass);
+ else
+ PI.runAfterPass<LazyCallGraph::SCC>(*Pass, *C);
// Update the SCC if necessary.
C = UR.UpdatedC ? UR.UpdatedC : C;
Index: lib/IR/PassTimingInfo.cpp
===================================================================
--- lib/IR/PassTimingInfo.cpp
+++ lib/IR/PassTimingInfo.cpp
@@ -226,7 +226,7 @@
Prefix.endswith("AnalysisManagerProxy");
}
-bool TimePassesHandler::runBeforePass(StringRef PassID, Any IR) {
+bool TimePassesHandler::runBeforePass(StringRef PassID) {
if (matchPassManager(PassID))
return true;
@@ -239,7 +239,7 @@
return true;
}
-void TimePassesHandler::runAfterPass(StringRef PassID, Any IR) {
+void TimePassesHandler::runAfterPass(StringRef PassID) {
if (matchPassManager(PassID))
return;
@@ -254,13 +254,15 @@
return;
PIC.registerBeforePassCallback(
- [this](StringRef P, Any IR) { return this->runBeforePass(P, IR); });
+ [this](StringRef P, Any) { return this->runBeforePass(P); });
PIC.registerAfterPassCallback(
- [this](StringRef P, Any IR) { this->runAfterPass(P, IR); });
+ [this](StringRef P, Any) { this->runAfterPass(P); });
+ PIC.registerAfterPassInvalidatedCallback(
+ [this](StringRef P) { this->runAfterPass(P); });
PIC.registerBeforeAnalysisCallback(
- [this](StringRef P, Any IR) { this->runBeforePass(P, IR); });
+ [this](StringRef P, Any) { this->runBeforePass(P); });
PIC.registerAfterAnalysisCallback(
- [this](StringRef P, Any IR) { this->runAfterPass(P, IR); });
+ [this](StringRef P, Any) { this->runAfterPass(P); });
}
} // namespace llvm
Index: lib/Passes/StandardInstrumentations.cpp
===================================================================
--- lib/Passes/StandardInstrumentations.cpp
+++ lib/Passes/StandardInstrumentations.cpp
@@ -41,8 +41,10 @@
const Module *M = nullptr;
if (any_isa<const Module *>(IR)) {
M = any_cast<const Module *>(IR);
+ assert(M && "module should be valid for printing");
} else if (any_isa<const Function *>(IR)) {
const Function *F = any_cast<const Function *>(IR);
+ assert(F && "function should be valid for printing");
if (!llvm::isFunctionInPrintList(F->getName()))
return;
if (!llvm::forcePrintModuleIR()) {
@@ -53,7 +55,9 @@
Extra = formatv(" (function: {0})\n", F->getName());
} else if (any_isa<const LazyCallGraph::SCC *>(IR)) {
const LazyCallGraph::SCC *C = any_cast<const LazyCallGraph::SCC *>(IR);
- assert(C);
+ // We get nullptr here when current SCC gets invalidated by the pass.
+ if (C == nullptr)
+ return;
if (!llvm::forcePrintModuleIR()) {
Extra = formatv(" (scc: {0})\n", C->getName());
bool BannerPrinted = false;
@@ -81,6 +85,11 @@
Extra = formatv(" (for scc: {0})\n", C->getName());
} else if (any_isa<const Loop *>(IR)) {
const Loop *L = any_cast<const Loop *>(IR);
+ // Current loop might have been invalidated by the pass,
+ // then we will get nullptr here.
+ if (L == nullptr)
+ return;
+
const Function *F = L->getHeader()->getParent();
if (!isFunctionInPrintList(F->getName()))
return;
@@ -124,6 +133,8 @@
return;
SmallString<20> Banner = formatv("*** IR Dump After {0} ***", PassID);
+ // TODO: handle cases when IR is nullptr (i.e. has been invalidated)
+ // but we still need to print the module due to forcePrintModuleIR.
unwrapAndPrint(Banner, IR);
return;
}
Index: lib/Transforms/Scalar/LoopPassManager.cpp
===================================================================
--- lib/Transforms/Scalar/LoopPassManager.cpp
+++ lib/Transforms/Scalar/LoopPassManager.cpp
@@ -44,7 +44,11 @@
PreservedAnalyses PassPA = Pass->run(L, AM, AR, U);
- PI.runAfterPass<Loop>(*Pass, L);
+ // do not pass deleted Loop into the instrumentation
+ if (U.skipCurrentLoop())
+ PI.runAfterPassInvalidated<Loop>(*Pass);
+ else
+ PI.runAfterPass<Loop>(*Pass, L);
// If the loop was deleted, abort the run and return to the outer walk.
if (U.skipCurrentLoop()) {
Index: test/Other/loop-deletion-printer.ll
===================================================================
--- /dev/null
+++ test/Other/loop-deletion-printer.ll
@@ -0,0 +1,24 @@
+; Make sure that Loop which was invalidated by loop-deletion
+; does not lead to problems for -print-after-all and is just skipped.
+;
+; RUN: opt < %s -disable-output \
+; RUN: -passes=loop-instsimplify -print-after-all 2>&1 | FileCheck %s -check-prefix=SIMPLIFY
+; RUN: opt < %s -disable-output \
+; RUN: -passes=loop-deletion,loop-instsimplify -print-after-all 2>&1 | FileCheck %s -check-prefix=DELETED
+;
+; SIMPLIFY: IR Dump {{.*}} LoopInstSimplifyPass
+; DELETED-NOT: IR Dump {{.*}}LoopInstSimplifyPass
+; DELETED-NOT: IR Dump {{.*}}LoopDeletionPass
+
+define void @deleteme() {
+entry:
+ br label %loop
+loop:
+ %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
+ %iv.next = add i32 %iv, 1
+ %check = icmp ult i32 %iv.next, 3
+ br i1 %check, label %loop, label %exit
+exit:
+ ret void
+}
+
Index: test/Other/scc-deleted-printer.ll
===================================================================
--- /dev/null
+++ test/Other/scc-deleted-printer.ll
@@ -0,0 +1,25 @@
+; RUN: opt < %s 2>&1 -disable-output \
+; RUN: -passes=inline -print-before-all -print-after-all | FileCheck %s -check-prefix=INL
+; RUN: opt < %s 2>&1 -disable-output \
+; RUN: -passes=inline -print-before-all -print-after-all -print-module-scope | FileCheck %s -check-prefix=INL-MOD
+
+; INL: IR Dump Before {{InlinerPass .*scc: .tester, foo}}
+; INL-NOT: IR Dump After {{InlinerPass}}
+; INL: IR Dump Before {{InlinerPass .*scc: .tester}}
+; INL: IR Dump After {{InlinerPass .*scc: .tester}}
+
+; INL-MOD: IR Dump Before {{InlinerPass .*scc: .tester, foo}}
+; INL-MOD-NOT: IR Dump After {{InlinerPass}}
+; INL-MOD: IR Dump Before {{InlinerPass .*scc: .tester}}
+; INL-MOD: IR Dump After {{InlinerPass .*scc: .tester}}
+
+
+define void @tester() noinline {
+ call void @foo()
+ ret void
+}
+
+define internal void @foo() alwaysinline {
+ call void @tester()
+ ret void
+}