[llvm] [RemoveDIs] Handle DPValues in LowerDbgDeclare (PR #73504)
via llvm-commits
llvm-commits at lists.llvm.org
Mon Nov 27 03:30:22 PST 2023
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-debuginfo
@llvm/pr-subscribers-coroutines
@llvm/pr-subscribers-llvm-ir
Author: Orlando Cazalet-Hyams (OCHyams)
<details>
<summary>Changes</summary>
I'm not sure what the best way to do stacked reviews is, but this is meant to only be a review for the last commit.
Based on top of https://github.com/llvm/llvm-project/pull/73500
---
Patch is 23.62 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/73504.diff
22 Files Affected:
- (modified) llvm/include/llvm/IR/DebugInfo.h (+2-1)
- (modified) llvm/lib/IR/DebugInfo.cpp (+16-27)
- (modified) llvm/lib/Transforms/Coroutines/CoroFrame.cpp (+8-4)
- (modified) llvm/lib/Transforms/Scalar/SROA.cpp (+10-3)
- (modified) llvm/lib/Transforms/Utils/Local.cpp (+32-18)
- (modified) llvm/lib/Transforms/Utils/MemoryOpRemark.cpp (+3-2)
- (modified) llvm/test/DebugInfo/ARM/lowerbdgdeclare_vla.ll (+1)
- (modified) llvm/test/DebugInfo/Generic/dbg-value-lower-linenos.ll (+1)
- (modified) llvm/test/DebugInfo/Generic/volatile-alloca.ll (+1)
- (modified) llvm/test/DebugInfo/X86/array2.ll (+1)
- (modified) llvm/test/DebugInfo/X86/formal_parameter.ll (+1)
- (modified) llvm/test/DebugInfo/X86/instcombine-instrinsics.ll (+1)
- (modified) llvm/test/DebugInfo/duplicate_dbgvalue.ll (+1)
- (modified) llvm/test/DebugInfo/verify-di-preserve.ll (+2)
- (modified) llvm/test/Transforms/InstCombine/dbg-scalable-store-fixed-frag.ll (+1)
- (modified) llvm/test/Transforms/InstCombine/dbg-simplify-alloca-size.ll (+1)
- (modified) llvm/test/Transforms/InstCombine/debuginfo-scalable-typesize.ll (+1)
- (modified) llvm/test/Transforms/InstCombine/debuginfo-skip.ll (+3)
- (modified) llvm/test/Transforms/InstCombine/debuginfo.ll (+4)
- (modified) llvm/test/Transforms/InstCombine/lifetime-no-null-opt.ll (+1)
- (modified) llvm/test/Transforms/InstCombine/lifetime.ll (+1-1)
- (modified) llvm/test/Transforms/InstCombine/lower-dbg-declare.ll (+1)
``````````diff
diff --git a/llvm/include/llvm/IR/DebugInfo.h b/llvm/include/llvm/IR/DebugInfo.h
index 2a581eb5f09d9f8..36ef77f9505bc10 100644
--- a/llvm/include/llvm/IR/DebugInfo.h
+++ b/llvm/include/llvm/IR/DebugInfo.h
@@ -40,7 +40,8 @@ class Module;
/// Finds dbg.declare intrinsics declaring local variables as living in the
/// memory that 'V' points to.
-TinyPtrVector<DbgDeclareInst *> FindDbgDeclareUses(Value *V);
+void findDbgDeclares(SmallVectorImpl<DbgDeclareInst *> &DbgUsers, Value *V,
+ SmallVectorImpl<DPValue *> *DPValues = nullptr);
/// Finds the llvm.dbg.value intrinsics describing a value.
void findDbgValues(SmallVectorImpl<DbgValueInst *> &DbgValues,
diff --git a/llvm/lib/IR/DebugInfo.cpp b/llvm/lib/IR/DebugInfo.cpp
index 3fe940e19295b01..98271f1a2a88a72 100644
--- a/llvm/lib/IR/DebugInfo.cpp
+++ b/llvm/lib/IR/DebugInfo.cpp
@@ -44,30 +44,12 @@ using namespace llvm;
using namespace llvm::at;
using namespace llvm::dwarf;
-TinyPtrVector<DbgDeclareInst *> llvm::FindDbgDeclareUses(Value *V) {
- // This function is hot. Check whether the value has any metadata to avoid a
- // DenseMap lookup.
- if (!V->isUsedByMetadata())
- return {};
- auto *L = LocalAsMetadata::getIfExists(V);
- if (!L)
- return {};
- auto *MDV = MetadataAsValue::getIfExists(V->getContext(), L);
- if (!MDV)
- return {};
-
- TinyPtrVector<DbgDeclareInst *> Declares;
- for (User *U : MDV->users()) {
- if (auto *DDI = dyn_cast<DbgDeclareInst>(U))
- Declares.push_back(DDI);
- }
+template <typename IntrinsicT, bool AnyType,
+ DPValue::LocationType Type = DPValue::LocationType(-1)>
+static void findDbgIntrinsics(SmallVectorImpl<IntrinsicT *> &Result, Value *V,
+ SmallVectorImpl<DPValue *> *DPValues) {
+ static_assert(AnyType || (int)Type >= 0);
- return Declares;
-}
-
-template <typename IntrinsicT>
-static void findDbgIntrinsics(SmallVectorImpl<IntrinsicT *> &Result,
- Value *V, SmallVectorImpl<DPValue *> *DPValues) {
// This function is hot. Check whether the value has any metadata to avoid a
// DenseMap lookup.
if (!V->isUsedByMetadata())
@@ -96,7 +78,7 @@ static void findDbgIntrinsics(SmallVectorImpl<IntrinsicT *> &Result,
// Get DPValues that use this as a single value.
if (LocalAsMetadata *L = dyn_cast<LocalAsMetadata>(MD)) {
for (DPValue *DPV : L->getAllDPValueUsers()) {
- if (DPV->getType() == DPValue::LocationType::Value)
+ if (AnyType || DPV->getType() == Type)
DPValues->push_back(DPV);
}
}
@@ -110,21 +92,28 @@ static void findDbgIntrinsics(SmallVectorImpl<IntrinsicT *> &Result,
continue;
DIArgList *DI = cast<DIArgList>(AL);
for (DPValue *DPV : DI->getAllDPValueUsers())
- if (DPV->getType() == DPValue::LocationType::Value)
+ if (AnyType || DPV->getType() == Type)
if (EncounteredDPValues.insert(DPV).second)
DPValues->push_back(DPV);
}
}
}
+void llvm::findDbgDeclares(SmallVectorImpl<DbgDeclareInst *> &DbgUsers,
+ Value *V, SmallVectorImpl<DPValue *> *DPValues) {
+ findDbgIntrinsics<DbgDeclareInst, false, DPValue::LocationType::Declare>(
+ DbgUsers, V, DPValues);
+}
+
void llvm::findDbgValues(SmallVectorImpl<DbgValueInst *> &DbgValues,
Value *V, SmallVectorImpl<DPValue *> *DPValues) {
- findDbgIntrinsics<DbgValueInst>(DbgValues, V, DPValues);
+ findDbgIntrinsics<DbgValueInst, false, DPValue::LocationType::Value>(
+ DbgValues, V, DPValues);
}
void llvm::findDbgUsers(SmallVectorImpl<DbgVariableIntrinsic *> &DbgUsers,
Value *V, SmallVectorImpl<DPValue *> *DPValues) {
- findDbgIntrinsics<DbgVariableIntrinsic>(DbgUsers, V, DPValues);
+ findDbgIntrinsics<DbgVariableIntrinsic, true>(DbgUsers, V, DPValues);
}
DISubprogram *llvm::getDISubprogram(const MDNode *Scope) {
diff --git a/llvm/lib/Transforms/Coroutines/CoroFrame.cpp b/llvm/lib/Transforms/Coroutines/CoroFrame.cpp
index fef1a698e146390..fbacfb39f62acbd 100644
--- a/llvm/lib/Transforms/Coroutines/CoroFrame.cpp
+++ b/llvm/lib/Transforms/Coroutines/CoroFrame.cpp
@@ -963,7 +963,8 @@ static void cacheDIVar(FrameDataInfo &FrameData,
if (DIVarCache.contains(V))
continue;
- auto DDIs = FindDbgDeclareUses(V);
+ SmallVector<DbgDeclareInst *> DDIs;
+ findDbgDeclares(DDIs, V);
auto *I = llvm::find_if(DDIs, [](DbgDeclareInst *DDI) {
return DDI->getExpression()->getNumElements() == 0;
});
@@ -1119,7 +1120,8 @@ static void buildFrameDebugInfo(Function &F, coro::Shape &Shape,
assert(PromiseAlloca &&
"Coroutine with switch ABI should own Promise alloca");
- TinyPtrVector<DbgDeclareInst *> DIs = FindDbgDeclareUses(PromiseAlloca);
+ SmallVector<DbgDeclareInst *> DIs;
+ findDbgDeclares(DIs, PromiseAlloca);
if (DIs.empty())
return;
@@ -1840,7 +1842,8 @@ static void insertSpills(const FrameDataInfo &FrameData, coro::Shape &Shape) {
FrameTy->getElementType(FrameData.getFieldIndex(E.first)), GEP,
SpillAlignment, E.first->getName() + Twine(".reload"));
- TinyPtrVector<DbgDeclareInst *> DIs = FindDbgDeclareUses(Def);
+ SmallVector<DbgDeclareInst *> DIs;
+ findDbgDeclares(DIs, Def);
// Try best to find dbg.declare. If the spill is a temp, there may not
// be a direct dbg.declare. Walk up the load chain to find one from an
// alias.
@@ -1854,7 +1857,8 @@ static void insertSpills(const FrameDataInfo &FrameData, coro::Shape &Shape) {
CurDef = LdInst->getPointerOperand();
if (!isa<AllocaInst, LoadInst>(CurDef))
break;
- DIs = FindDbgDeclareUses(CurDef);
+ DIs.clear();
+ findDbgDeclares(DIs, CurDef);
}
}
diff --git a/llvm/lib/Transforms/Scalar/SROA.cpp b/llvm/lib/Transforms/Scalar/SROA.cpp
index f578762d2b4971c..92d5f970ea4ccab 100644
--- a/llvm/lib/Transforms/Scalar/SROA.cpp
+++ b/llvm/lib/Transforms/Scalar/SROA.cpp
@@ -4940,10 +4940,13 @@ bool SROA::splitAlloca(AllocaInst &AI, AllocaSlices &AS) {
// Migrate debug information from the old alloca to the new alloca(s)
// and the individual partitions.
TinyPtrVector<DbgVariableIntrinsic *> DbgVariables;
- for (auto *DbgDeclare : FindDbgDeclareUses(&AI))
+ SmallVector<DbgDeclareInst *> DbgDeclares;
+ findDbgDeclares(DbgDeclares, &AI);
+ for (auto *DbgDeclare : DbgDeclares)
DbgVariables.push_back(DbgDeclare);
for (auto *DbgAssign : at::getAssignmentMarkers(&AI))
DbgVariables.push_back(DbgAssign);
+
for (DbgVariableIntrinsic *DbgVariable : DbgVariables) {
auto *Expr = DbgVariable->getExpression();
DIBuilder DIB(*AI.getModule(), /*AllowUnresolved*/ false);
@@ -4997,7 +5000,9 @@ bool SROA::splitAlloca(AllocaInst &AI, AllocaSlices &AS) {
// Remove any existing intrinsics on the new alloca describing
// the variable fragment.
- for (DbgDeclareInst *OldDII : FindDbgDeclareUses(Fragment.Alloca)) {
+ SmallVector<DbgDeclareInst *> FragDbgDeclares;
+ findDbgDeclares(FragDbgDeclares, Fragment.Alloca);
+ for (DbgDeclareInst *OldDII : FragDbgDeclares) {
auto SameVariableFragment = [](const DbgVariableIntrinsic *LHS,
const DbgVariableIntrinsic *RHS) {
return LHS->getVariable() == RHS->getVariable() &&
@@ -5147,7 +5152,9 @@ bool SROA::deleteDeadInstructions(
// not be able to find it.
if (AllocaInst *AI = dyn_cast<AllocaInst>(I)) {
DeletedAllocas.insert(AI);
- for (DbgDeclareInst *OldDII : FindDbgDeclareUses(AI))
+ SmallVector<DbgDeclareInst *> DbgDeclares;
+ findDbgDeclares(DbgDeclares, AI);
+ for (DbgDeclareInst *OldDII : DbgDeclares)
OldDII->eraseFromParent();
}
diff --git a/llvm/lib/Transforms/Utils/Local.cpp b/llvm/lib/Transforms/Utils/Local.cpp
index e399329a58873e7..cd0644229c003e3 100644
--- a/llvm/lib/Transforms/Utils/Local.cpp
+++ b/llvm/lib/Transforms/Utils/Local.cpp
@@ -1724,9 +1724,11 @@ void llvm::ConvertDebugDeclareToDebugValue(DbgVariableIntrinsic *DII,
SI->getIterator());
}
+namespace llvm {
// RemoveDIs: duplicate the getDebugValueLoc method using DPValues instead of
-// dbg.value intrinsics.
-static DebugLoc getDebugValueLocDPV(DPValue *DPV) {
+// dbg.value intrinsics. In llvm namespace so that it overloads the
+// DbgVariableIntrinsic version.
+static DebugLoc getDebugValueLoc(DPValue *DPV) {
// Original dbg.declare must have a location.
const DebugLoc &DeclareLoc = DPV->getDebugLoc();
MDNode *Scope = DeclareLoc.getScope();
@@ -1734,6 +1736,7 @@ static DebugLoc getDebugValueLocDPV(DPValue *DPV) {
// Produce an unknown location with the correct scope / inlinedAt fields.
return DILocation::get(DPV->getContext(), 0, 0, Scope, InlinedAt);
}
+} // namespace llvm
/// Inserts a llvm.dbg.value intrinsic before a load of an alloca'd value
/// that has an associated llvm.dbg.declare intrinsic.
@@ -1770,7 +1773,7 @@ void llvm::ConvertDebugDeclareToDebugValue(DPValue *DPV, StoreInst *SI,
auto *DIExpr = DPV->getExpression();
Value *DV = SI->getValueOperand();
- DebugLoc NewLoc = getDebugValueLocDPV(DPV);
+ DebugLoc NewLoc = getDebugValueLoc(DPV);
if (!valueCoversEntireFragment(DV->getType(), DPV)) {
// FIXME: If storing to a part of the variable described by the dbg.declare,
@@ -1842,7 +1845,7 @@ void llvm::ConvertDebugDeclareToDebugValue(DPValue *DPV, LoadInst *LI,
return;
}
- DebugLoc NewLoc = getDebugValueLocDPV(DPV);
+ DebugLoc NewLoc = getDebugValueLoc(DPV);
// We are now tracking the loaded value instead of the address. In the
// future if multi-location support is added to the IR, it might be
@@ -1887,7 +1890,7 @@ void llvm::ConvertDebugDeclareToDebugValue(DPValue *DPV, PHINode *APN,
BasicBlock *BB = APN->getParent();
auto InsertionPt = BB->getFirstInsertionPt();
- DebugLoc NewLoc = getDebugValueLocDPV(DPV);
+ DebugLoc NewLoc = getDebugValueLoc(DPV);
// The block may be a catchswitch block, which does not have a valid
// insertion point.
@@ -1903,17 +1906,24 @@ bool llvm::LowerDbgDeclare(Function &F) {
bool Changed = false;
DIBuilder DIB(*F.getParent(), /*AllowUnresolved*/ false);
SmallVector<DbgDeclareInst *, 4> Dbgs;
- for (auto &FI : F)
- for (Instruction &BI : FI)
- if (auto DDI = dyn_cast<DbgDeclareInst>(&BI))
+ SmallVector<DPValue *> DPVs;
+ for (auto &FI : F) {
+ for (Instruction &BI : FI) {
+ if (auto *DDI = dyn_cast<DbgDeclareInst>(&BI))
Dbgs.push_back(DDI);
+ for (DPValue &DPV : BI.getDbgValueRange()) {
+ if (DPV.getType() == DPValue::LocationType::Declare)
+ DPVs.push_back(&DPV);
+ }
+ }
+ }
- if (Dbgs.empty())
+ if (Dbgs.empty() && DPVs.empty())
return Changed;
- for (auto &I : Dbgs) {
- DbgDeclareInst *DDI = I;
- AllocaInst *AI = dyn_cast_or_null<AllocaInst>(DDI->getAddress());
+ auto LowerOne = [&](auto *DDI) {
+ AllocaInst *AI =
+ dyn_cast_or_null<AllocaInst>(DDI->getVariableLocationOp(0));
// If this is an alloca for a scalar variable, insert a dbg.value
// at each load and store to the alloca and erase the dbg.declare.
// The dbg.values allow tracking a variable even if it is not
@@ -1921,7 +1931,7 @@ bool llvm::LowerDbgDeclare(Function &F) {
// the stack slot (and at a lexical-scope granularity). Later
// passes will attempt to elide the stack slot.
if (!AI || isArray(AI) || isStructure(AI))
- continue;
+ return;
// A volatile load/store means that the alloca can't be elided anyway.
if (llvm::any_of(AI->users(), [](User *U) -> bool {
@@ -1931,7 +1941,7 @@ bool llvm::LowerDbgDeclare(Function &F) {
return SI->isVolatile();
return false;
}))
- continue;
+ return;
SmallVector<const Value *, 8> WorkList;
WorkList.push_back(AI);
@@ -1963,11 +1973,14 @@ bool llvm::LowerDbgDeclare(Function &F) {
}
DDI->eraseFromParent();
Changed = true;
- }
+ };
+
+ for_each(Dbgs, LowerOne);
+ for_each(DPVs, LowerOne);
if (Changed)
- for (BasicBlock &BB : F)
- RemoveRedundantDbgInstrs(&BB);
+ for (BasicBlock &BB : F)
+ RemoveRedundantDbgInstrs(&BB);
return Changed;
}
@@ -2103,7 +2116,8 @@ void llvm::insertDebugValuesForPHIs(BasicBlock *BB,
bool llvm::replaceDbgDeclare(Value *Address, Value *NewAddress,
DIBuilder &Builder, uint8_t DIExprFlags,
int Offset) {
- auto DbgDeclares = FindDbgDeclareUses(Address);
+ SmallVector<DbgDeclareInst *> DbgDeclares;
+ findDbgDeclares(DbgDeclares, Address);
for (DbgVariableIntrinsic *DII : DbgDeclares) {
const DebugLoc &Loc = DII->getDebugLoc();
auto *DIVar = DII->getVariable();
diff --git a/llvm/lib/Transforms/Utils/MemoryOpRemark.cpp b/llvm/lib/Transforms/Utils/MemoryOpRemark.cpp
index 531b0a624dafab6..99c033cab64f803 100644
--- a/llvm/lib/Transforms/Utils/MemoryOpRemark.cpp
+++ b/llvm/lib/Transforms/Utils/MemoryOpRemark.cpp
@@ -321,8 +321,9 @@ void MemoryOpRemark::visitVariable(const Value *V,
bool FoundDI = false;
// Try to get an llvm.dbg.declare, which has a DILocalVariable giving us the
// real debug info name and size of the variable.
- for (const DbgVariableIntrinsic *DVI :
- FindDbgDeclareUses(const_cast<Value *>(V))) {
+ SmallVector<DbgDeclareInst *> DbgDeclares;
+ findDbgDeclares(DbgDeclares, const_cast<Value *>(V));
+ for (const DbgVariableIntrinsic *DVI : DbgDeclares) {
if (DILocalVariable *DILV = DVI->getVariable()) {
std::optional<uint64_t> DISize = getSizeInBytes(DILV->getSizeInBits());
VariableInfo Var{DILV->getName(), DISize};
diff --git a/llvm/test/DebugInfo/ARM/lowerbdgdeclare_vla.ll b/llvm/test/DebugInfo/ARM/lowerbdgdeclare_vla.ll
index 0b3375d511ebf4a..2a0ee339e52e8d6 100644
--- a/llvm/test/DebugInfo/ARM/lowerbdgdeclare_vla.ll
+++ b/llvm/test/DebugInfo/ARM/lowerbdgdeclare_vla.ll
@@ -1,4 +1,5 @@
; RUN: opt -passes=instcombine %s -S | FileCheck %s
+; RUN: opt --try-experimental-debuginfo-iterators -passes=instcombine %s -S | FileCheck %s
;
; Generate me from:
; clang -cc1 -triple thumbv7-apple-ios7.0.0 -S -target-abi apcs-gnu -gdwarf-2 -Os test.c -o test.ll -emit-llvm
diff --git a/llvm/test/DebugInfo/Generic/dbg-value-lower-linenos.ll b/llvm/test/DebugInfo/Generic/dbg-value-lower-linenos.ll
index 7c3490996c8c35c..7fffa93008f6cbe 100644
--- a/llvm/test/DebugInfo/Generic/dbg-value-lower-linenos.ll
+++ b/llvm/test/DebugInfo/Generic/dbg-value-lower-linenos.ll
@@ -1,4 +1,5 @@
; RUN: opt < %s -S -passes=mem2reg,instcombine | FileCheck %s
+; RUN: opt --try-experimental-debuginfo-iterators < %s -S -passes=mem2reg,instcombine | FileCheck %s
; The '%bar' alloca will be promoted to an SSA register by mem2reg: test that
; zero line number are assigned to the dbg.value intrinsics that are inserted
diff --git a/llvm/test/DebugInfo/Generic/volatile-alloca.ll b/llvm/test/DebugInfo/Generic/volatile-alloca.ll
index bb1ce817272fdfc..4081fd8984f540f 100644
--- a/llvm/test/DebugInfo/Generic/volatile-alloca.ll
+++ b/llvm/test/DebugInfo/Generic/volatile-alloca.ll
@@ -1,4 +1,5 @@
; RUN: opt -passes=mem2reg,instcombine %s -o - -S | FileCheck %s
+; RUN: opt --try-experimental-debuginfo-iterators -passes=mem2reg,instcombine %s -o - -S | FileCheck %s
;
; Test that a dbg.declare describing am alloca with volatile
; load/stores is not lowered into a dbg.value, since the alloca won't
diff --git a/llvm/test/DebugInfo/X86/array2.ll b/llvm/test/DebugInfo/X86/array2.ll
index 17128e37d83e861..8b386ca44c5fb1d 100644
--- a/llvm/test/DebugInfo/X86/array2.ll
+++ b/llvm/test/DebugInfo/X86/array2.ll
@@ -13,6 +13,7 @@
; }
;
; RUN: opt %s -O2 -S -o - | FileCheck %s
+; RUN: opt --try-experimental-debuginfo-iterators %s -O2 -S -o - | FileCheck %s
; Test that we correctly lower dbg.declares for arrays.
;
; CHECK: define i32 @main
diff --git a/llvm/test/DebugInfo/X86/formal_parameter.ll b/llvm/test/DebugInfo/X86/formal_parameter.ll
index 21f86fbece83e6c..553b20ff09ad29e 100644
--- a/llvm/test/DebugInfo/X86/formal_parameter.ll
+++ b/llvm/test/DebugInfo/X86/formal_parameter.ll
@@ -15,6 +15,7 @@ target triple = "x86_64-apple-macosx10.9.0"
; RUN: opt %s -O2 -S -o %t
; RUN: cat %t | FileCheck --check-prefix=LOWERING %s
; RUN: llc -filetype=obj %t -o - | llvm-dwarfdump -debug-info - | FileCheck %s
+; RUN: llc --try-experimental-debuginfo-iterators -filetype=obj %t -o - | llvm-dwarfdump -debug-info - | FileCheck %s
; Test that we only emit only one DW_AT_formal_parameter "map" for this function.
; rdar://problem/14874886
;
diff --git a/llvm/test/DebugInfo/X86/instcombine-instrinsics.ll b/llvm/test/DebugInfo/X86/instcombine-instrinsics.ll
index c25cbbffee1efe7..ff5e07318d1e70d 100644
--- a/llvm/test/DebugInfo/X86/instcombine-instrinsics.ll
+++ b/llvm/test/DebugInfo/X86/instcombine-instrinsics.ll
@@ -1,4 +1,5 @@
; RUN: opt %s -O2 -S -o - | FileCheck %s
+; RUN: opt --try-experimental-debuginfo-iterators %s -O2 -S -o - | FileCheck %s
; Verify that we emit the same intrinsic at most once.
; rdar://problem/13056109
;
diff --git a/llvm/test/DebugInfo/duplicate_dbgvalue.ll b/llvm/test/DebugInfo/duplicate_dbgvalue.ll
index 250d2b5a5f30f2b..685e666b2ffb8a9 100644
--- a/llvm/test/DebugInfo/duplicate_dbgvalue.ll
+++ b/llvm/test/DebugInfo/duplicate_dbgvalue.ll
@@ -1,4 +1,5 @@
; RUN: opt -passes=instcombine -S -o - < %s | FileCheck %s
+; RUN: opt --try-experimental-debuginfo-iterators -passes=instcombine -S -o - < %s | FileCheck %s
; CHECK-LABEL: %3 = load i32, ptr %i1_311
; CHECK: call void @llvm.dbg.value(metadata i32 %3
diff --git a/llvm/test/DebugInfo/verify-di-preserve.ll b/llvm/test/DebugInfo/verify-di-preserve.ll
index 46d17154ebf6225..a2f1b1dd78dc5a9 100644
--- a/llvm/test/DebugInfo/verify-di-preserve.ll
+++ b/llvm/test/DebugInfo/verify-di-preserve.ll
@@ -1,8 +1,10 @@
; RUN: opt %s -verify-debuginfo-preserve -passes=instcombine -disable-output 2>&1 | FileCheck --check-prefix=VERIFY %s
+; RUN: opt --try-experimental-debuginfo-iterators %s -verify-debuginfo-preserve -passes=instcombine -disable-output 2>&1 | FileCheck --check-prefix=VERIFY %s
; VERIFY: CheckModuleDebugify (original debuginfo):
; RUN: opt %s -verify-each-debuginfo-preserve -O2 -disable-output 2>&1 | FileCheck --check-prefix=VERIFY-EACH %s
+; RUN: opt %s --try-experimental-debuginfo-iterators -verify-each-debuginfo-preserve -O2 -disable-output 2>&1 | FileCheck --check-prefix=VERIFY-EACH %s
; VERIFY-EACH: DeadArgumentEliminationPass
; VERIFY-EACH: GlobalDCEPass
diff --git a/llvm/test/Transforms/InstCombine/dbg-scalable-store-fixed-frag.ll b/llvm/test/Transforms/InstCombine/dbg-scalable-store-fixed-frag.ll
index a8a7ee4608f65e4..018f232012df83e 100644
--- a/llvm/test/Transforms/InstCombine/dbg-scalable-store-fixed-frag.ll
+++ b/llvm/test/Transforms/InstCombine/dbg-scalable-store-fixed-frag.ll
@@ -1,5 +1,6 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes='instcombine' -S | FileCheck %s
+; RUN: opt --try-experimental-debuginfo-iterators < %s -passes='instcombine' -S | FileCheck %s
define i32 @foo(<vscale x 2 x i32> %x) {
; CHECK-LABEL: @foo(
diff --git a/llvm/test/Transforms/InstCombine/dbg-simplify-alloca-size.ll b/llvm/test/Transforms/InstCombine/dbg-simplify-alloca-size.ll
index 028b19fadf197cf..03e8e44109e6b6e 100644
--- a/llvm/test/Transforms/InstCombine/dbg-simplify-alloca-size.ll
+++ b/llvm/test/Transforms/InstCombine/dbg-simplify-alloca-size.ll
@@ -1,4 +1,5 @@
; RUN: opt -S --passes=instcombine %s | FileCheck %s
+; RUN: opt --try-experimental-debuginfo-iterators -S --passes=instcombine %s | FileCheck %s
; https://github.com/llvm/llvm-project/issues/56807
declare void @foo(ptr %pixels)
diff --git a/llvm/test/Transforms/InstCombine/debuginfo-scalable-typesize.ll b/llvm/test/Transforms/InstCombine/debuginfo-scalable-typesize.ll
index b2e78f1eff002e6..feea036519b85e2 100644
--- a/llvm/test/Transforms/InstCombine/debuginfo-scalable-typesize.ll
+++ b/llvm/test/Transforms/InstCombine/debuginfo-scalable-typesize.ll
@@ -1,4 +1,5 @@
; RUN: opt -passes=instcombine -S < %s | FileCheck %s
+; RUN: opt --try-experimental-debuginfo-iterators -passes=instcombine -S < %s ...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/73504
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