[llvm] Use DIExpression::foldConstantMath() at the result of an appendOpsToArg() (PR #71721)
Shubham Sandeep Rastogi via llvm-commits
llvm-commits at lists.llvm.org
Fri Mar 8 17:03:08 PST 2024
https://github.com/rastogishubham updated https://github.com/llvm/llvm-project/pull/71721
>From d105b0f5e0da59a10f185bea88959ffb224e1601 Mon Sep 17 00:00:00 2001
From: Shubham Sandeep Rastogi <srastogi22 at apple.com>
Date: Wed, 4 Oct 2023 11:34:19 -0700
Subject: [PATCH 1/4] [NFC] Move DIExpressionCursor to DebugInfoMetadata.h
---
llvm/include/llvm/IR/DebugInfoMetadata.h | 61 +++++++++++++++++++
llvm/lib/CodeGen/AsmPrinter/DwarfExpression.h | 61 -------------------
2 files changed, 61 insertions(+), 61 deletions(-)
diff --git a/llvm/include/llvm/IR/DebugInfoMetadata.h b/llvm/include/llvm/IR/DebugInfoMetadata.h
index 156f6eb49253de..28d2bc5faca580 100644
--- a/llvm/include/llvm/IR/DebugInfoMetadata.h
+++ b/llvm/include/llvm/IR/DebugInfoMetadata.h
@@ -3093,6 +3093,67 @@ template <> struct DenseMapInfo<DIExpression::FragmentInfo> {
static bool isEqual(const FragInfo &A, const FragInfo &B) { return A == B; }
};
+/// Holds a DIExpression and keeps track of how many operands have been consumed
+/// so far.
+class DIExpressionCursor {
+ DIExpression::expr_op_iterator Start, End;
+
+public:
+ DIExpressionCursor(const DIExpression *Expr) {
+ if (!Expr) {
+ assert(Start == End);
+ return;
+ }
+ Start = Expr->expr_op_begin();
+ End = Expr->expr_op_end();
+ }
+
+ DIExpressionCursor(ArrayRef<uint64_t> Expr)
+ : Start(Expr.begin()), End(Expr.end()) {}
+
+ DIExpressionCursor(const DIExpressionCursor &) = default;
+
+ /// Consume one operation.
+ std::optional<DIExpression::ExprOperand> take() {
+ if (Start == End)
+ return std::nullopt;
+ return *(Start++);
+ }
+
+ /// Consume N operations.
+ void consume(unsigned N) { std::advance(Start, N); }
+
+ /// Return the current operation.
+ std::optional<DIExpression::ExprOperand> peek() const {
+ if (Start == End)
+ return std::nullopt;
+ return *(Start);
+ }
+
+ /// Return the next operation.
+ std::optional<DIExpression::ExprOperand> peekNext() const {
+ if (Start == End)
+ return std::nullopt;
+
+ auto Next = Start.getNext();
+ if (Next == End)
+ return std::nullopt;
+
+ return *Next;
+ }
+
+ /// Determine whether there are any operations left in this expression.
+ operator bool() const { return Start != End; }
+
+ DIExpression::expr_op_iterator begin() const { return Start; }
+ DIExpression::expr_op_iterator end() const { return End; }
+
+ /// Retrieve the fragment information, if any.
+ std::optional<DIExpression::FragmentInfo> getFragmentInfo() const {
+ return DIExpression::getFragmentInfo(Start, End);
+ }
+};
+
/// Global variables.
///
/// TODO: Remove DisplayName. It's always equal to Name.
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfExpression.h b/llvm/lib/CodeGen/AsmPrinter/DwarfExpression.h
index 667a9efc6f6c04..4daa78b15b8e29 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfExpression.h
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfExpression.h
@@ -31,67 +31,6 @@ class DIELoc;
class TargetRegisterInfo;
class MachineLocation;
-/// Holds a DIExpression and keeps track of how many operands have been consumed
-/// so far.
-class DIExpressionCursor {
- DIExpression::expr_op_iterator Start, End;
-
-public:
- DIExpressionCursor(const DIExpression *Expr) {
- if (!Expr) {
- assert(Start == End);
- return;
- }
- Start = Expr->expr_op_begin();
- End = Expr->expr_op_end();
- }
-
- DIExpressionCursor(ArrayRef<uint64_t> Expr)
- : Start(Expr.begin()), End(Expr.end()) {}
-
- DIExpressionCursor(const DIExpressionCursor &) = default;
-
- /// Consume one operation.
- std::optional<DIExpression::ExprOperand> take() {
- if (Start == End)
- return std::nullopt;
- return *(Start++);
- }
-
- /// Consume N operations.
- void consume(unsigned N) { std::advance(Start, N); }
-
- /// Return the current operation.
- std::optional<DIExpression::ExprOperand> peek() const {
- if (Start == End)
- return std::nullopt;
- return *(Start);
- }
-
- /// Return the next operation.
- std::optional<DIExpression::ExprOperand> peekNext() const {
- if (Start == End)
- return std::nullopt;
-
- auto Next = Start.getNext();
- if (Next == End)
- return std::nullopt;
-
- return *Next;
- }
-
- /// Determine whether there are any operations left in this expression.
- operator bool() const { return Start != End; }
-
- DIExpression::expr_op_iterator begin() const { return Start; }
- DIExpression::expr_op_iterator end() const { return End; }
-
- /// Retrieve the fragment information, if any.
- std::optional<DIExpression::FragmentInfo> getFragmentInfo() const {
- return DIExpression::getFragmentInfo(Start, End);
- }
-};
-
/// Base class containing the logic for constructing DWARF expressions
/// independently of whether they are emitted into a DIE or into a .debug_loc
/// entry.
>From 9c028dbc989a619722868a009a2ca15756b16916 Mon Sep 17 00:00:00 2001
From: Shubham Sandeep Rastogi <srastogi22 at apple.com>
Date: Wed, 1 Nov 2023 17:25:26 -0700
Subject: [PATCH 2/4] Add functions peekNextN(unsigned) and
assignNewExpr(ArrayRef<uint64_t>) to DIExpressionCursor
This commit adds two functions to the DIExpressionCursor class.
peekNextN(unsigned) works like peekNext, but lets you peek the next Nth
element
assignNewExpr(ArrayRef<uint64_t>) lets you assign a new expression to
the same DIExpressionCursor object
---
llvm/include/llvm/IR/DebugInfoMetadata.h | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/llvm/include/llvm/IR/DebugInfoMetadata.h b/llvm/include/llvm/IR/DebugInfoMetadata.h
index 28d2bc5faca580..494b78f05b0eb8 100644
--- a/llvm/include/llvm/IR/DebugInfoMetadata.h
+++ b/llvm/include/llvm/IR/DebugInfoMetadata.h
@@ -3142,6 +3142,25 @@ class DIExpressionCursor {
return *Next;
}
+ std::optional<DIExpression::ExprOperand> peekNextN(unsigned N) const {
+ if (Start == End)
+ return std::nullopt;
+ DIExpression::expr_op_iterator Nth = Start;
+ for (unsigned I = 0; I < N; I++) {
+ Nth = Nth.getNext();
+ if (Nth == End)
+ return std::nullopt;
+ }
+ return *Nth;
+ }
+
+ void assignNewExpr(ArrayRef<uint64_t> Expr) {
+ DIExpression::expr_op_iterator NewStart(Expr.begin());
+ DIExpression::expr_op_iterator NewEnd(Expr.end());
+ this->Start = NewStart;
+ this->End = NewEnd;
+ }
+
/// Determine whether there are any operations left in this expression.
operator bool() const { return Start != End; }
>From f4006d1e483d6173e04bfb1cc34513e8255cbd46 Mon Sep 17 00:00:00 2001
From: Shubham Sandeep Rastogi <srastogi22 at apple.com>
Date: Fri, 20 Oct 2023 10:44:22 -0700
Subject: [PATCH 3/4] Introduce DIExpression::foldConstantMath()
DIExpressions can get very long and have a lot of redundant operations.
This function uses simple pattern matching to fold constant math that
can be evaluated at compile time.
---
llvm/include/llvm/IR/DebugInfoMetadata.h | 5 +
llvm/lib/IR/DebugInfoMetadata.cpp | 316 ++++++++++++++++++++++-
llvm/unittests/IR/MetadataTest.cpp | 279 ++++++++++++++++++++
3 files changed, 599 insertions(+), 1 deletion(-)
diff --git a/llvm/include/llvm/IR/DebugInfoMetadata.h b/llvm/include/llvm/IR/DebugInfoMetadata.h
index 494b78f05b0eb8..c2379f3656fdd0 100644
--- a/llvm/include/llvm/IR/DebugInfoMetadata.h
+++ b/llvm/include/llvm/IR/DebugInfoMetadata.h
@@ -3064,6 +3064,11 @@ class DIExpression : public MDNode {
/// expression and constant on failure.
std::pair<DIExpression *, const ConstantInt *>
constantFold(const ConstantInt *CI);
+
+ /// Try to shorten an expression with constant math operations that can be
+ /// evaulated at compile time. Returns a new expression on success, or the old
+ /// expression if there is nothing to be reduced.
+ DIExpression *foldConstantMath();
};
inline bool operator==(const DIExpression::FragmentInfo &A,
diff --git a/llvm/lib/IR/DebugInfoMetadata.cpp b/llvm/lib/IR/DebugInfoMetadata.cpp
index 28f96653d815b5..550e47c9b8c024 100644
--- a/llvm/lib/IR/DebugInfoMetadata.cpp
+++ b/llvm/lib/IR/DebugInfoMetadata.cpp
@@ -1870,7 +1870,6 @@ DIExpression *DIExpression::append(const DIExpression *Expr,
}
Op.appendToVector(NewOps);
}
-
NewOps.append(Ops.begin(), Ops.end());
auto *result = DIExpression::get(Expr->getContext(), NewOps);
assert(result->isValid() && "concatenated expression is not valid");
@@ -2011,6 +2010,321 @@ DIExpression::constantFold(const ConstantInt *CI) {
ConstantInt::get(getContext(), NewInt)};
}
+static bool isConstantVal(uint64_t Op) {
+ return Op == dwarf::DW_OP_constu || Op == dwarf::DW_OP_consts;
+}
+
+static bool isNeutralElement(uint64_t Op, uint64_t Val) {
+ switch (Op) {
+ case dwarf::DW_OP_plus:
+ case dwarf::DW_OP_minus:
+ case dwarf::DW_OP_shl:
+ case dwarf::DW_OP_shr:
+ return Val == 0;
+ case dwarf::DW_OP_mul:
+ case dwarf::DW_OP_div:
+ return Val == 1;
+ default:
+ return false;
+ }
+}
+
+static std::optional<uint64_t>
+foldOperationIfPossible(uint64_t Op, uint64_t Operand1, uint64_t Operand2) {
+ switch (Op) {
+ case dwarf::DW_OP_plus:
+ return Operand1 + Operand2;
+ case dwarf::DW_OP_minus:
+ return Operand1 - Operand2;
+ case dwarf::DW_OP_shl:
+ return Operand1 << Operand2;
+ case dwarf::DW_OP_shr:
+ return Operand1 >> Operand2;
+ case dwarf::DW_OP_mul:
+ return Operand1 * Operand2;
+ case dwarf::DW_OP_div:
+ return Operand1 / Operand2;
+ default:
+ return std::nullopt;
+ }
+}
+
+static bool operationsAreFoldableAndCommutative(uint64_t Op1, uint64_t Op2) {
+ if (Op1 != Op2)
+ return false;
+ switch (Op1) {
+ case dwarf::DW_OP_plus:
+ case dwarf::DW_OP_mul:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static void consumeOneOperator(DIExpressionCursor &Cursor, uint64_t &Loc,
+ const DIExpression::ExprOperand &Op) {
+ Cursor.consume(1);
+ Loc = Loc + Op.getSize();
+}
+
+static void startFromBeginning(uint64_t &Loc, DIExpressionCursor &Cursor,
+ ArrayRef<uint64_t> WorkingOps) {
+ Cursor.assignNewExpr(WorkingOps);
+ Loc = 0;
+}
+
+static void moveCursorToCurrentOp(uint64_t &Loc, DIExpressionCursor &Cursor,
+ ArrayRef<uint64_t> WorkingOps,
+ uint32_t NumOfOpsConsumed) {
+ Cursor.assignNewExpr(WorkingOps);
+ Cursor.consume(NumOfOpsConsumed);
+ assert(Cursor.peek()->getOp() == WorkingOps[Loc] &&
+ "Cursor position does not match position of iterator 'Loc' to "
+ "WorkingOps");
+}
+
+// This function will canonicalize:
+// 1. DW_OP_plus_uconst to DW_OP_constu <const-val> DW_OP_plus
+// 2. DW_OP_lit<n> to DW_OP_constu <n>
+static void canonicalizeDwarfOperations(SmallVectorImpl<uint64_t> &WorkingOps) {
+ DIExpressionCursor Cursor(WorkingOps);
+ uint64_t Loc = 0;
+ uint32_t NumOfOpsConsumed = 0;
+ while (Loc < WorkingOps.size()) {
+ auto Op = Cursor.peek();
+ // Expression has no operations, break.
+ if (!Op)
+ break;
+ auto OpRaw = Op->getOp();
+ auto OpArg = Op->getArg(0);
+
+ if (OpRaw >= dwarf::DW_OP_lit0 && OpRaw <= dwarf::DW_OP_lit31) {
+ WorkingOps[Loc] = dwarf::DW_OP_constu;
+ WorkingOps.insert(WorkingOps.begin() + Loc + 1,
+ OpRaw - dwarf::DW_OP_lit0);
+ } else if (OpRaw == dwarf::DW_OP_plus_uconst) {
+ WorkingOps[Loc] = dwarf::DW_OP_constu;
+ WorkingOps[Loc + 1] = OpArg;
+ WorkingOps.insert(WorkingOps.begin() + Loc + 2, dwarf::DW_OP_plus);
+ moveCursorToCurrentOp(Loc, Cursor, WorkingOps, NumOfOpsConsumed);
+ }
+ consumeOneOperator(Cursor, Loc, *Cursor.peek());
+ NumOfOpsConsumed++;
+ }
+}
+
+// This function will convert:
+// DW_OP_constu <const-val> DW_OP_plus to DW_OP_plus_uconst
+static void optimizeDwarfOperations(SmallVectorImpl<uint64_t> &WorkingOps) {
+ DIExpressionCursor Cursor(WorkingOps);
+ uint64_t Loc = 0;
+ uint32_t NumOfOpsConsumed = 0;
+ while (Loc < WorkingOps.size()) {
+ auto Op1 = Cursor.peek();
+ // Expression has no operations, exit.
+ if (!Op1)
+ break;
+ auto Op1Raw = Op1->getOp();
+ auto Op1Arg = Op1->getArg(0);
+
+ if (Op1Raw == dwarf::DW_OP_constu && Op1Arg == 0) {
+ WorkingOps[Loc] = dwarf::DW_OP_lit0;
+ WorkingOps.erase(WorkingOps.begin() + Loc + 1);
+ moveCursorToCurrentOp(Loc, Cursor, WorkingOps, NumOfOpsConsumed);
+ continue;
+ }
+
+ auto Op2 = Cursor.peekNext();
+ // Expression has no more operations, exit.
+ if (!Op2)
+ break;
+ auto Op2Raw = Op2->getOp();
+
+ if (Op1Raw == dwarf::DW_OP_constu && Op2Raw == dwarf::DW_OP_plus) {
+ WorkingOps.erase(WorkingOps.begin() + Loc + 2);
+ WorkingOps[Loc] = dwarf::DW_OP_plus_uconst;
+ WorkingOps[Loc + 1] = Op1Arg;
+ moveCursorToCurrentOp(Loc, Cursor, WorkingOps, NumOfOpsConsumed);
+ }
+ consumeOneOperator(Cursor, Loc, *Cursor.peek());
+ NumOfOpsConsumed++;
+ }
+}
+
+// {DW_OP_const[u, s], 0, DW_OP_[plus, minus, shl, shr]} -> {}
+// {DW_OP_const[u, s], 1, DW_OP_[mul, div]} -> {}
+static bool tryFoldNoOpMath(uint64_t Op1Raw, uint64_t Op1Arg, uint64_t Op2Raw,
+ uint64_t &Loc, DIExpressionCursor &Cursor,
+ SmallVectorImpl<uint64_t> &WorkingOps) {
+ if (isConstantVal(Op1Raw) && isNeutralElement(Op2Raw, Op1Arg)) {
+ WorkingOps.erase(WorkingOps.begin() + Loc, WorkingOps.begin() + Loc + 3);
+ startFromBeginning(Loc, Cursor, WorkingOps);
+ return true;
+ }
+ return false;
+}
+
+// {DW_OP_const[u, s], Const1, DW_OP_const[u, s], Const2, DW_OP_[plus,
+// minus, mul, div, shl, shr] -> {DW_OP_constu, Const1 [+, -, *, /, <<, >>]
+// Const2}
+static bool tryFoldConstants(std::optional<DIExpression::ExprOperand> Op1,
+ uint64_t Op1Raw, uint64_t Op1Arg, uint64_t Op2Raw,
+ uint64_t Op2Arg, uint64_t Op3Raw, uint64_t &Loc,
+ DIExpressionCursor &Cursor,
+ SmallVectorImpl<uint64_t> &WorkingOps) {
+ if (isConstantVal(Op1Raw) && isConstantVal(Op2Raw)) {
+ auto Result = foldOperationIfPossible(Op3Raw, Op1Arg, Op2Arg);
+ if (!Result) {
+ consumeOneOperator(Cursor, Loc, *Op1);
+ return true;
+ }
+ WorkingOps.erase(WorkingOps.begin() + Loc + 2,
+ WorkingOps.begin() + Loc + 5);
+ WorkingOps[Loc] = dwarf::DW_OP_constu;
+ WorkingOps[Loc + 1] = *Result;
+ startFromBeginning(Loc, Cursor, WorkingOps);
+ return true;
+ }
+ return false;
+}
+
+// {DW_OP_const[u, s], Const1, DW_OP_[plus, mul], DW_OP_const[u, s], Const2,
+// DW_OP_[plus, mul]} -> {DW_OP_constu, Const1 [+, *] Const2, DW_OP_[plus, mul]}
+static bool tryFoldCommutativeMath(uint64_t Op1Raw, uint64_t Op1Arg,
+ uint64_t Op2Raw, uint64_t Op2Arg,
+ uint64_t Op3Raw, uint64_t Op3Arg,
+ uint64_t Op4Raw, uint64_t &Loc,
+ DIExpressionCursor &Cursor,
+ SmallVectorImpl<uint64_t> &WorkingOps) {
+
+ if (isConstantVal(Op1Raw) && isConstantVal(Op3Raw) &&
+ operationsAreFoldableAndCommutative(Op2Raw, Op4Raw)) {
+ auto Result = foldOperationIfPossible(Op2Raw, Op1Arg, Op3Arg);
+ if (!Result)
+ llvm_unreachable(
+ "Something went very wrong here! This should always work");
+ WorkingOps.erase(WorkingOps.begin() + Loc + 3,
+ WorkingOps.begin() + Loc + 6);
+ WorkingOps[Loc] = dwarf::DW_OP_constu;
+ WorkingOps[Loc + 1] = *Result;
+ startFromBeginning(Loc, Cursor, WorkingOps);
+ return true;
+ }
+ return false;
+}
+
+// {DW_OP_const[u, s], Const1, DW_OP_[plus, mul], DW_OP_LLVM_arg, Arg1,
+// DW_OP_[plus, mul], DW_OP_const[u, s], Const2, DW_OP_[plus, mul]} ->
+// {DW_OP_constu, Const1 [+, *] Const2, DW_OP_[plus, mul], DW_OP_LLVM_arg,
+// Arg1, DW_OP_[plus, mul]}
+static bool tryFoldCommutativeMathWithArgInBetween(
+ uint64_t Op1Raw, uint64_t Op1Arg, uint64_t Op2Raw, uint64_t Op3Raw,
+ uint64_t Op4Raw, uint64_t Op5Raw, uint64_t Op5Arg, uint64_t Op6Raw,
+ uint64_t &Loc, DIExpressionCursor &Cursor,
+ SmallVectorImpl<uint64_t> &WorkingOps) {
+ if (isConstantVal(Op1Raw) && Op3Raw == dwarf::DW_OP_LLVM_arg &&
+ isConstantVal(Op5Raw) &&
+ operationsAreFoldableAndCommutative(Op2Raw, Op4Raw) &&
+ operationsAreFoldableAndCommutative(Op4Raw, Op6Raw)) {
+ auto Result = foldOperationIfPossible(Op2Raw, Op1Arg, Op5Arg);
+ if (!Result)
+ llvm_unreachable(
+ "Something went very wrong here! This should always work");
+ WorkingOps.erase(WorkingOps.begin() + Loc + 6,
+ WorkingOps.begin() + Loc + 9);
+ WorkingOps[Loc] = dwarf::DW_OP_constu;
+ WorkingOps[Loc + 1] = *Result;
+ startFromBeginning(Loc, Cursor, WorkingOps);
+ return true;
+ }
+ return false;
+}
+
+DIExpression *DIExpression::foldConstantMath() {
+
+ SmallVector<uint64_t, 8> WorkingOps(Elements.begin(), Elements.end());
+ uint64_t Loc = 0;
+ canonicalizeDwarfOperations(WorkingOps);
+ DIExpressionCursor Cursor(WorkingOps);
+
+ while (Loc < WorkingOps.size()) {
+
+ auto Op1 = Cursor.peek();
+ // Expression has no operations, exit.
+ if (!Op1)
+ break;
+ auto Op1Raw = Op1->getOp();
+ auto Op1Arg = Op1->getArg(0);
+
+ if (!isConstantVal(Op1Raw)) {
+ // Early exit, all of the following patterns start with a constant value.
+ consumeOneOperator(Cursor, Loc, *Op1);
+ continue;
+ }
+
+ auto Op2 = Cursor.peekNext();
+ // All following patterns require at least 2 Operations, exit.
+ if (!Op2)
+ break;
+ auto Op2Raw = Op2->getOp();
+
+ if (tryFoldNoOpMath(Op1Raw, Op1Arg, Op2Raw, Loc, Cursor, WorkingOps))
+ continue;
+
+ auto Op2Arg = Op2->getArg(0);
+
+ auto Op3 = Cursor.peekNextN(2);
+ // Op2 could still match a pattern, skip iteration.
+ if (!Op3) {
+ consumeOneOperator(Cursor, Loc, *Op1);
+ continue;
+ }
+ auto Op3Raw = Op3->getOp();
+
+ if (tryFoldConstants(Op1, Op1Raw, Op1Arg, Op2Raw, Op2Arg, Op3Raw, Loc,
+ Cursor, WorkingOps))
+ continue;
+
+ auto Op3Arg = Op3->getArg(0);
+
+ auto Op4 = Cursor.peekNextN(3);
+ // Op2 and Op3 could still match a pattern, skip iteration.
+ if (!Op4) {
+ consumeOneOperator(Cursor, Loc, *Op1);
+ continue;
+ }
+ auto Op4Raw = Op4->getOp();
+
+ if (tryFoldCommutativeMath(Op1Raw, Op1Arg, Op2Raw, Op2Arg, Op3Raw, Op3Arg,
+ Op4Raw, Loc, Cursor, WorkingOps))
+ continue;
+
+ auto Op5 = Cursor.peekNextN(4);
+ if (!Op5) {
+ consumeOneOperator(Cursor, Loc, *Op1);
+ continue;
+ }
+ auto Op5Raw = Op5->getOp();
+ auto Op5Arg = Op5->getArg(0);
+ auto Op6 = Cursor.peekNextN(5);
+ if (!Op6) {
+ consumeOneOperator(Cursor, Loc, *Op1);
+ continue;
+ }
+ auto Op6Raw = Op6->getOp();
+ if (tryFoldCommutativeMathWithArgInBetween(Op1Raw, Op1Arg, Op2Raw, Op3Raw,
+ Op4Raw, Op5Raw, Op5Arg, Op6Raw,
+ Loc, Cursor, WorkingOps))
+ continue;
+
+ consumeOneOperator(Cursor, Loc, *Op1);
+ }
+ optimizeDwarfOperations(WorkingOps);
+ auto *Result = DIExpression::get(getContext(), WorkingOps);
+ assert(Result->isValid() && "concatenated expression is not valid");
+ return Result;
+}
+
uint64_t DIExpression::getNumLocationOperands() const {
uint64_t Result = 0;
for (auto ExprOp : expr_ops())
diff --git a/llvm/unittests/IR/MetadataTest.cpp b/llvm/unittests/IR/MetadataTest.cpp
index 767dd1a59d2b9e..c6c9b2a683f9e9 100644
--- a/llvm/unittests/IR/MetadataTest.cpp
+++ b/llvm/unittests/IR/MetadataTest.cpp
@@ -3120,6 +3120,285 @@ TEST_F(DIExpressionTest, get) {
EXPECT_EQ(N0WithPrependedOps, N2);
}
+TEST_F(DIExpressionTest, Fold) {
+
+ // Remove a No-op DW_OP_plus_uconst from an expression.
+ SmallVector<uint64_t, 8> Ops = {dwarf::DW_OP_plus_uconst, 0};
+ auto *Expr = DIExpression::get(Context, Ops);
+ auto *E = Expr->foldConstantMath();
+ SmallVector<uint64_t, 8> ResOps;
+ auto *ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Remove a No-op add from an expression.
+ Ops[0] = dwarf::DW_OP_constu;
+ Ops[1] = 0;
+ Ops.push_back(dwarf::DW_OP_plus);
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Remove a No-op subtract from an expression.
+ Ops[2] = dwarf::DW_OP_minus;
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Remove a No-op shift left from an expression.
+ Ops[2] = dwarf::DW_OP_shl;
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Remove a No-op shift right from an expression.
+ Ops[2] = dwarf::DW_OP_shr;
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Remove a No-op multiply from an expression.
+ Ops[2] = dwarf::DW_OP_mul;
+ Ops[1] = 1;
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Remove a No-op divide from an expression.
+ Ops[2] = dwarf::DW_OP_div;
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Test fold {DW_OP_plus_uconst, Const1, DW_OP_plus_uconst, Const2} ->
+ // {DW_OP_plus_uconst, Const1 + Const2}
+ Ops[0] = dwarf::DW_OP_plus_uconst;
+ Ops[1] = 2;
+ Ops[2] = dwarf::DW_OP_plus_uconst;
+ Ops.push_back(3);
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResOps.push_back(dwarf::DW_OP_plus_uconst);
+ ResOps.push_back(5);
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Test {DW_OP_constu, Const1, DW_OP_plus_uconst, Const2} -> {DW_OP_constu,
+ // Const1 + Const2}
+ Ops[0] = dwarf::DW_OP_constu;
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResOps[0] = dwarf::DW_OP_constu;
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Test {DW_OP_constu, Const1, DW_OP_constu, Const2, DW_OP_plus} ->
+ // {DW_OP_constu, Const1 + Const2}
+ Ops[1] = 8;
+ Ops[2] = dwarf::DW_OP_constu;
+ Ops[3] = 2;
+ Ops.push_back(dwarf::DW_OP_plus);
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResOps[0] = dwarf::DW_OP_constu;
+ ResOps[1] = 10;
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Test {DW_OP_constu, Const1, DW_OP_constu, Const2, DW_OP_minus} ->
+ // {DW_OP_constu, Const1 - Const2}
+ Ops[4] = dwarf::DW_OP_minus;
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResOps[0] = dwarf::DW_OP_constu;
+ ResOps[1] = 6;
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Test {DW_OP_constu, Const1, DW_OP_constu, Const2, DW_OP_mul} ->
+ // {DW_OP_constu, Const1 * Const2}
+ Ops[4] = dwarf::DW_OP_mul;
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResOps[0] = dwarf::DW_OP_constu;
+ ResOps[1] = 16;
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Test {DW_OP_constu, Const1, DW_OP_constu, Const2, DW_OP_div} ->
+ // {DW_OP_constu, Const1 / Const2}
+ Ops[4] = dwarf::DW_OP_div;
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResOps[0] = dwarf::DW_OP_constu;
+ ResOps[1] = 4;
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Test {DW_OP_constu, Const1, DW_OP_constu, Const2, DW_OP_shl} ->
+ // {DW_OP_constu, Const1 << Const2}
+ Ops[4] = dwarf::DW_OP_shl;
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResOps[0] = dwarf::DW_OP_constu;
+ ResOps[1] = 32;
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Test {DW_OP_constu, Const1, DW_OP_constu, Const2, DW_OP_shr} ->
+ // {DW_OP_constu, Const1 >> Const2}
+ Ops[4] = dwarf::DW_OP_shr;
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResOps[0] = dwarf::DW_OP_constu;
+ ResOps[1] = 2;
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Test {DW_OP_plus_uconst, Const1, DW_OP_constu, Const2, DW_OP_plus} ->
+ // {DW_OP_plus_uconst, Const1 + Const2}
+ Ops[0] = dwarf::DW_OP_plus_uconst;
+ Ops[1] = 8;
+ Ops[2] = dwarf::DW_OP_constu;
+ Ops[3] = 2;
+ Ops[4] = dwarf::DW_OP_plus;
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResOps[0] = dwarf::DW_OP_plus_uconst;
+ ResOps[1] = 10;
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Test {DW_OP_constu, Const1, DW_OP_plus, DW_OP_plus_uconst, Const2} ->
+ // {DW_OP_plus_uconst, Const1 + Const2}
+ Ops[0] = dwarf::DW_OP_constu;
+ Ops[1] = 8;
+ Ops[2] = dwarf::DW_OP_plus;
+ Ops[3] = dwarf::DW_OP_plus_uconst;
+ Ops[4] = 2;
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Test {DW_OP_constu, Const1, DW_OP_plus, DW_OP_constu, Const2, DW_OP_plus}
+ // -> {DW_OP_plus_uconst, Const1 + Const2}
+ Ops[0] = dwarf::DW_OP_constu;
+ Ops[1] = 8;
+ Ops[2] = dwarf::DW_OP_plus;
+ Ops[3] = dwarf::DW_OP_constu;
+ Ops[4] = 2;
+ Ops.push_back(dwarf::DW_OP_plus);
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResOps[0] = dwarf::DW_OP_plus_uconst;
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Test {DW_OP_constu, Const1, DW_OP_mul, DW_OP_constu, Const2, DW_OP_mul} ->
+ // {DW_OP_constu, Const1 * Const2, DW_OP_mul}
+ Ops[0] = dwarf::DW_OP_constu;
+ Ops[1] = 8;
+ Ops[2] = dwarf::DW_OP_mul;
+ Ops[3] = dwarf::DW_OP_constu;
+ Ops[4] = 2;
+ Ops[5] = dwarf::DW_OP_mul;
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResOps[0] = dwarf::DW_OP_constu;
+ ResOps[1] = 16;
+ ResOps.push_back(dwarf::DW_OP_mul);
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Test {DW_OP_plus_uconst, Const1, DW_OP_plus, DW_OP_LLVM_arg, Arg,
+ // DW_OP_plus, DW_OP_constu, Const2, DW_OP_plus} -> {DW_OP_plus_uconst, Const1
+ // + Const2, DW_OP_LLVM_arg, Arg, DW_OP_plus}
+ Ops[0] = dwarf::DW_OP_plus_uconst;
+ Ops[1] = 8;
+ Ops[2] = dwarf::DW_OP_LLVM_arg;
+ Ops[3] = 0;
+ Ops[4] = dwarf::DW_OP_plus;
+ Ops[5] = dwarf::DW_OP_constu;
+ Ops.push_back(2);
+ Ops.push_back(dwarf::DW_OP_plus);
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResOps[0] = dwarf::DW_OP_plus_uconst;
+ ResOps[1] = 10;
+ ResOps[2] = dwarf::DW_OP_LLVM_arg;
+ ResOps.push_back(0);
+ ResOps.push_back(dwarf::DW_OP_plus);
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Test {DW_OP_constu, Const1, DW_OP_plus, DW_OP_LLVM_arg, Arg, DW_OP_plus,
+ // DW_OP_plus_uconst, Const2} -> {DW_OP_constu, Const1 + Const2, DW_OP_plus,
+ // DW_OP_LLVM_arg, Arg, DW_OP_plus}
+ Ops[0] = dwarf::DW_OP_constu;
+ Ops[1] = 8;
+ Ops[2] = dwarf::DW_OP_plus;
+ Ops[3] = dwarf::DW_OP_LLVM_arg;
+ Ops[4] = 0;
+ Ops[5] = dwarf::DW_OP_plus;
+ Ops[6] = dwarf::DW_OP_plus_uconst;
+ Ops[7] = 2;
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResOps[0] = dwarf::DW_OP_plus_uconst;
+ ResOps[1] = 10;
+ ResOps[2] = dwarf::DW_OP_LLVM_arg;
+ ResOps[3] = 0;
+ ResOps[4] = dwarf::DW_OP_plus;
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Test {DW_OP_constu, Const1, DW_OP_plus, DW_OP_LLVM_arg, Arg, DW_OP_plus,
+ // DW_OP_constu, Const2, DW_OP_plus} -> {DW_OP_constu, Const1 + Const2,
+ // DW_OP_plus, DW_OP_LLVM_arg, Arg, DW_OP_plus}
+ Ops[0] = dwarf::DW_OP_constu;
+ Ops[1] = 8;
+ Ops[2] = dwarf::DW_OP_plus;
+ Ops[3] = dwarf::DW_OP_LLVM_arg;
+ Ops[4] = 0;
+ Ops[5] = dwarf::DW_OP_plus;
+ Ops[6] = dwarf::DW_OP_constu;
+ Ops[7] = 2;
+ Ops.push_back(dwarf::DW_OP_plus);
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+
+ // Test {DW_OP_constu, Const1, DW_OP_mul, DW_OP_LLVM_arg, Arg, DW_OP_mul,
+ // DW_OP_constu, Const2, DW_OP_mul} -> {DW_OP_constu, Const1 * Const2,
+ // DW_OP_mul, DW_OP_LLVM_arg, Arg, DW_OP_mul}
+ Ops[0] = dwarf::DW_OP_constu;
+ Ops[1] = 8;
+ Ops[2] = dwarf::DW_OP_mul;
+ Ops[3] = dwarf::DW_OP_LLVM_arg;
+ Ops[4] = 0;
+ Ops[5] = dwarf::DW_OP_mul;
+ Ops[6] = dwarf::DW_OP_constu;
+ Ops[7] = 2;
+ Ops[8] = dwarf::DW_OP_mul;
+ Expr = DIExpression::get(Context, Ops);
+ E = Expr->foldConstantMath();
+ ResOps[0] = dwarf::DW_OP_constu;
+ ResOps[1] = 16;
+ ResOps[2] = dwarf::DW_OP_mul;
+ ResOps[3] = dwarf::DW_OP_LLVM_arg;
+ ResOps[4] = 0;
+ ResOps.push_back(dwarf::DW_OP_mul);
+ ResExpr = DIExpression::get(Context, ResOps);
+ EXPECT_EQ(E, ResExpr);
+}
+
TEST_F(DIExpressionTest, isValid) {
#define EXPECT_VALID(...) \
do { \
>From 2abd30c941a9736f835433d5a758258b9175c7f6 Mon Sep 17 00:00:00 2001
From: Shubham Sandeep Rastogi <srastogi22 at apple.com>
Date: Fri, 8 Mar 2024 11:28:34 -0800
Subject: [PATCH 4/4] Use DIExpression:foldConstantMath() at the result of an
append()
---
llvm/lib/IR/DebugInfoMetadata.cpp | 8 +-
llvm/test/Bitcode/upgrade-dbg-addr.ll | 2 +-
.../MIR/AArch64/dbgcall-site-expr-chain.mir | 4 +-
.../MIR/InstrRef/deref-spills-with-size.mir | 24 ++--
.../InstrRef/follow-spill-of-indir-value.mir | 4 +-
llvm/test/DebugInfo/salvage-icmp.ll | 2 +-
.../Transforms/Coroutines/swift-async-dbg.ll | 8 +-
.../Transforms/InstCombine/cast-mul-select.ll | 2 +-
.../Transforms/InstCombine/debuginfo-dce.ll | 2 +-
.../Transforms/InstCombine/debuginfo-sink.ll | 62 +++++-----
llvm/unittests/IR/MetadataTest.cpp | 107 ++++++++++++++++++
llvm/unittests/Transforms/Utils/LocalTest.cpp | 3 +-
12 files changed, 168 insertions(+), 60 deletions(-)
diff --git a/llvm/lib/IR/DebugInfoMetadata.cpp b/llvm/lib/IR/DebugInfoMetadata.cpp
index 550e47c9b8c024..5abced5a191ef7 100644
--- a/llvm/lib/IR/DebugInfoMetadata.cpp
+++ b/llvm/lib/IR/DebugInfoMetadata.cpp
@@ -1774,7 +1774,8 @@ DIExpression *DIExpression::appendOpsToArg(const DIExpression *Expr,
assert(ArgNo == 0 &&
"Location Index must be 0 for a non-variadic expression.");
SmallVector<uint64_t, 8> NewOps(Ops.begin(), Ops.end());
- return DIExpression::prependOpcodes(Expr, NewOps, StackValue);
+ return DIExpression::prependOpcodes(Expr, NewOps, StackValue)
+ ->foldConstantMath();
}
SmallVector<uint64_t, 8> NewOps;
@@ -1795,7 +1796,7 @@ DIExpression *DIExpression::appendOpsToArg(const DIExpression *Expr,
if (StackValue)
NewOps.push_back(dwarf::DW_OP_stack_value);
- return DIExpression::get(Expr->getContext(), NewOps);
+ return DIExpression::get(Expr->getContext(), NewOps)->foldConstantMath();
}
DIExpression *DIExpression::replaceArg(const DIExpression *Expr,
@@ -1871,7 +1872,8 @@ DIExpression *DIExpression::append(const DIExpression *Expr,
Op.appendToVector(NewOps);
}
NewOps.append(Ops.begin(), Ops.end());
- auto *result = DIExpression::get(Expr->getContext(), NewOps);
+ auto *result =
+ DIExpression::get(Expr->getContext(), NewOps)->foldConstantMath();
assert(result->isValid() && "concatenated expression is not valid");
return result;
}
diff --git a/llvm/test/Bitcode/upgrade-dbg-addr.ll b/llvm/test/Bitcode/upgrade-dbg-addr.ll
index 40fd7db18948b5..1943c35b0059fb 100644
--- a/llvm/test/Bitcode/upgrade-dbg-addr.ll
+++ b/llvm/test/Bitcode/upgrade-dbg-addr.ll
@@ -8,7 +8,7 @@ entry:
%num.addr = alloca i32, align 4
store i32 %num, ptr %num.addr, align 4
; CHECK-NOT: call void @llvm.dbg.addr
- ; CHECK: call void @llvm.dbg.value(metadata ptr %num.addr, metadata ![[#]], metadata !DIExpression(DW_OP_plus_uconst, 0, DW_OP_deref))
+ ; CHECK: call void @llvm.dbg.value(metadata ptr %num.addr, metadata ![[#]], metadata !DIExpression(DW_OP_deref))
call void @llvm.dbg.addr(metadata ptr %num.addr, metadata !16, metadata !DIExpression(DW_OP_plus_uconst, 0)), !dbg !17
%0 = load i32, ptr %num.addr, align 4
ret i32 %0
diff --git a/llvm/test/DebugInfo/MIR/AArch64/dbgcall-site-expr-chain.mir b/llvm/test/DebugInfo/MIR/AArch64/dbgcall-site-expr-chain.mir
index cb3e780664404c..02f4ce1200ca17 100644
--- a/llvm/test/DebugInfo/MIR/AArch64/dbgcall-site-expr-chain.mir
+++ b/llvm/test/DebugInfo/MIR/AArch64/dbgcall-site-expr-chain.mir
@@ -105,7 +105,7 @@ body: |
# CHECK: DW_TAG_GNU_call_site_parameter
# CHECK-NEXT: DW_AT_location (DW_OP_reg2 W2)
-# CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_breg19 W19+700, DW_OP_plus_uconst 0x9, DW_OP_plus_uconst 0x50)
+# CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_breg19 W19+789)
# CHECK: DW_TAG_GNU_call_site_parameter
# CHECK-NEXT: DW_AT_location (DW_OP_reg1 W1)
@@ -113,4 +113,4 @@ body: |
# CHECK: DW_TAG_GNU_call_site_parameter
# CHECK-NEXT: DW_AT_location (DW_OP_reg0 W0)
-# CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_breg19 W19+100, DW_OP_plus_uconst 0x17)
+# CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_breg19 W19+123)
diff --git a/llvm/test/DebugInfo/MIR/InstrRef/deref-spills-with-size.mir b/llvm/test/DebugInfo/MIR/InstrRef/deref-spills-with-size.mir
index 0253c95cc1324b..0ab3ec62f35467 100644
--- a/llvm/test/DebugInfo/MIR/InstrRef/deref-spills-with-size.mir
+++ b/llvm/test/DebugInfo/MIR/InstrRef/deref-spills-with-size.mir
@@ -83,9 +83,9 @@
# DWARF-NEXT: DW_OP_breg7 RSP-8
# DWARF-NEXT: DW_OP_breg7 RSP-8, DW_OP_deref_size 0x1, DW_OP_stack_value
## scalar / stack value with various sizes.
-# DWARF-NEXT: DW_OP_breg7 RSP-8, DW_OP_deref_size 0x8, DW_OP_lit1, DW_OP_plus, DW_OP_stack_value
-# DWARF-NEXT: DW_OP_breg7 RSP-8, DW_OP_deref, DW_OP_lit1, DW_OP_plus, DW_OP_stack_value
-# DWARF-NEXT: DW_OP_breg7 RSP-8, DW_OP_deref_size 0x1, DW_OP_lit1, DW_OP_plus, DW_OP_stack_value)
+# DWARF-NEXT: DW_OP_breg7 RSP-8, DW_OP_deref_size 0x8, DW_OP_plus_uconst 0x1, DW_OP_stack_value
+# DWARF-NEXT: DW_OP_breg7 RSP-8, DW_OP_deref, DW_OP_plus_uconst 0x1, DW_OP_stack_value
+# DWARF-NEXT: DW_OP_breg7 RSP-8, DW_OP_deref_size 0x1, DW_OP_plus_uconst 0x1, DW_OP_stack_value)
# DWARF: DW_AT_name ("flannel")
# Variable with fragments.
@@ -96,9 +96,9 @@
# DWARF-NEXT: DW_OP_breg7 RSP-8, DW_OP_piece 0x4
# DWARF-NEXT: DW_OP_breg7 RSP-8, DW_OP_deref_size 0x1, DW_OP_stack_value, DW_OP_piece 0x4
## Scalar / stack value with various sizes.
-# DWARF-NEXT: DW_OP_breg7 RSP-8, DW_OP_deref_size 0x8, DW_OP_lit1, DW_OP_plus, DW_OP_stack_value, DW_OP_piece 0x4
-# DWARF-NEXT: DW_OP_breg7 RSP-8, DW_OP_deref_size 0x4, DW_OP_lit1, DW_OP_plus, DW_OP_stack_value, DW_OP_piece 0x4
-# DWARF-NEXT: DW_OP_breg7 RSP-8, DW_OP_deref_size 0x1, DW_OP_lit1, DW_OP_plus, DW_OP_stack_value, DW_OP_piece 0x4)
+# DWARF-NEXT: DW_OP_breg7 RSP-8, DW_OP_deref_size 0x8, DW_OP_plus_uconst 0x1, DW_OP_stack_value, DW_OP_piece 0x4
+# DWARF-NEXT: DW_OP_breg7 RSP-8, DW_OP_deref_size 0x4, DW_OP_plus_uconst 0x1, DW_OP_stack_value, DW_OP_piece 0x4
+# DWARF-NEXT: DW_OP_breg7 RSP-8, DW_OP_deref_size 0x1, DW_OP_plus_uconst 0x1, DW_OP_stack_value, DW_OP_piece 0x4)
# DWARF: DW_AT_name ("shoes")
--- |
@@ -308,7 +308,7 @@ body: |
$rax = MOV64ri 0, debug-location !7
DBG_INSTR_REF !8, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_constu, 1, DW_OP_plus, DW_OP_stack_value), dbg-instr-ref(16, 0), debug-location !7
; CHECK: DBG_VALUE_LIST ![[VARNUM]],
- ; CHECK-SAME: !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_constu, 8, DW_OP_minus, DW_OP_deref_size, 8, DW_OP_constu, 1, DW_OP_plus, DW_OP_stack_value), $rsp
+ ; CHECK-SAME: !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_constu, 8, DW_OP_minus, DW_OP_deref_size, 8, DW_OP_plus_uconst, 1, DW_OP_stack_value), $rsp
$eax = MOV32ri 0, debug-location !7
DBG_VALUE $noreg, $noreg, !8, !DIExpression(), debug-location !7
; CHECK: DBG_VALUE $noreg, $noreg
@@ -319,7 +319,7 @@ body: |
$rax = MOV64ri 0, debug-location !7
DBG_INSTR_REF !8, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_constu, 1, DW_OP_plus, DW_OP_stack_value), dbg-instr-ref(17, 0), debug-location !7
; CHECK: DBG_VALUE_LIST ![[VARNUM]],
- ; CHECK-SAME: !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_constu, 8, DW_OP_minus, DW_OP_deref, DW_OP_constu, 1, DW_OP_plus, DW_OP_stack_value), $rsp
+ ; CHECK-SAME: !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_constu, 8, DW_OP_minus, DW_OP_deref, DW_OP_plus_uconst, 1, DW_OP_stack_value), $rsp
$eax = MOV32ri 0, debug-location !7
DBG_VALUE $noreg, $noreg, !8, !DIExpression(), debug-location !7
; CHECK: DBG_VALUE $noreg, $noreg
@@ -330,7 +330,7 @@ body: |
$rax = MOV64ri 0, debug-location !7
DBG_INSTR_REF !8, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_constu, 1, DW_OP_plus, DW_OP_stack_value), dbg-instr-ref(18, 0), debug-location !7
; CHECK: DBG_VALUE_LIST ![[VARNUM]],
- ; CHECK-SAME: !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_constu, 8, DW_OP_minus, DW_OP_deref_size, 1, DW_OP_constu, 1, DW_OP_plus, DW_OP_stack_value), $rsp
+ ; CHECK-SAME: !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_constu, 8, DW_OP_minus, DW_OP_deref_size, 1, DW_OP_plus_uconst, 1, DW_OP_stack_value), $rsp
$eax = MOV32ri 0, debug-location !7
DBG_VALUE $noreg, $noreg, !8, !DIExpression(), debug-location !7
; CHECK: DBG_VALUE $noreg, $noreg
@@ -341,7 +341,7 @@ body: |
$rax = MOV64ri 0, debug-location !7
DBG_INSTR_REF !10, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_constu, 1, DW_OP_plus, DW_OP_stack_value, DW_OP_LLVM_fragment, 0, 32), dbg-instr-ref(19, 0), debug-location !7
; CHECK: DBG_VALUE_LIST ![[VARNUM2]],
- ; CHECK-SAME: !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_constu, 8, DW_OP_minus, DW_OP_deref_size, 8, DW_OP_constu, 1, DW_OP_plus, DW_OP_stack_value, DW_OP_LLVM_fragment, 0, 32), $rsp
+ ; CHECK-SAME: !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_constu, 8, DW_OP_minus, DW_OP_deref_size, 8, DW_OP_plus_uconst, 1, DW_OP_stack_value, DW_OP_LLVM_fragment, 0, 32), $rsp
$eax = MOV32ri 0, debug-location !7
DBG_VALUE $noreg, $noreg, !10, !DIExpression(DW_OP_LLVM_fragment, 0, 32), debug-location !7
; CHECK: DBG_VALUE $noreg, $noreg
@@ -352,7 +352,7 @@ body: |
$rax = MOV64ri 0, debug-location !7
DBG_INSTR_REF !10, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_constu, 1, DW_OP_plus, DW_OP_stack_value, DW_OP_LLVM_fragment, 0, 32), dbg-instr-ref(20, 0), debug-location !7
; CHECK: DBG_VALUE_LIST ![[VARNUM2]],
- ; CHECK-SAME: !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_constu, 8, DW_OP_minus, DW_OP_deref_size, 4, DW_OP_constu, 1, DW_OP_plus, DW_OP_stack_value, DW_OP_LLVM_fragment, 0, 32), $rsp
+ ; CHECK-SAME: !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_constu, 8, DW_OP_minus, DW_OP_deref_size, 4, DW_OP_plus_uconst, 1, DW_OP_stack_value, DW_OP_LLVM_fragment, 0, 32), $rsp
$eax = MOV32ri 0, debug-location !7
DBG_VALUE $noreg, $noreg, !10, !DIExpression(DW_OP_LLVM_fragment, 0, 32), debug-location !7
; CHECK: DBG_VALUE $noreg, $noreg
@@ -363,7 +363,7 @@ body: |
$rax = MOV64ri 0, debug-location !7
DBG_INSTR_REF !10, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_constu, 1, DW_OP_plus, DW_OP_stack_value, DW_OP_LLVM_fragment, 0, 32), dbg-instr-ref(21, 0), debug-location !7
; CHECK: DBG_VALUE_LIST ![[VARNUM2]],
- ; CHECK-SAME: !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_constu, 8, DW_OP_minus, DW_OP_deref_size, 1, DW_OP_constu, 1, DW_OP_plus, DW_OP_stack_value, DW_OP_LLVM_fragment, 0, 32), $rsp
+ ; CHECK-SAME: !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_constu, 8, DW_OP_minus, DW_OP_deref_size, 1, DW_OP_plus_uconst, 1, DW_OP_stack_value, DW_OP_LLVM_fragment, 0, 32), $rsp
$eax = MOV32ri 0, debug-location !7
DBG_VALUE $noreg, $noreg, !10, !DIExpression(DW_OP_LLVM_fragment, 0, 32), debug-location !7
; CHECK: DBG_VALUE $noreg, $noreg
diff --git a/llvm/test/DebugInfo/MIR/InstrRef/follow-spill-of-indir-value.mir b/llvm/test/DebugInfo/MIR/InstrRef/follow-spill-of-indir-value.mir
index e3b8df27785434..d3541b4845721b 100644
--- a/llvm/test/DebugInfo/MIR/InstrRef/follow-spill-of-indir-value.mir
+++ b/llvm/test/DebugInfo/MIR/InstrRef/follow-spill-of-indir-value.mir
@@ -27,7 +27,7 @@
##
## Second location, variable pointed to by the register value plus eight.
##
-# DWARF-NEXT: DW_OP_breg7 RSP-8, DW_OP_deref, DW_OP_lit8, DW_OP_plus)
+# DWARF-NEXT: DW_OP_breg7 RSP-8, DW_OP_deref, DW_OP_plus_uconst 0x8)
##
## Spilt to stack: push stack location and deref the pointer onto the dwarf
## expr stack. Then add eight to it, and it points to the variable.
@@ -135,7 +135,7 @@ body: |
; CHECK: DBG_VALUE $rdi,
MOV64mr $rsp, 1, $noreg, -8, $noreg, $rdi :: (store (s64) into %stack.0)
$rdi = MOV64ri 0
- ; CHECK: DBG_VALUE $rsp, 0, ![[VARNUM]], !DIExpression(DW_OP_constu, 8, DW_OP_minus, DW_OP_deref, DW_OP_constu, 8, DW_OP_plus),
+ ; CHECK: DBG_VALUE $rsp, 0, ![[VARNUM]], !DIExpression(DW_OP_constu, 8, DW_OP_minus, DW_OP_deref, DW_OP_plus_uconst, 8),
renamable $rax = MOV64rm $rsp, 1, $noreg, -8, $noreg :: (load (s64) from %stack.0)
renamable $eax = MOV32rm killed renamable $rax, 1, $noreg, 0, $noreg, debug-location !24 :: (load (s32) from %ir.i1, !tbaa !25)
diff --git a/llvm/test/DebugInfo/salvage-icmp.ll b/llvm/test/DebugInfo/salvage-icmp.ll
index ce9e809e12c1a8..f47c20e7992e65 100644
--- a/llvm/test/DebugInfo/salvage-icmp.ll
+++ b/llvm/test/DebugInfo/salvage-icmp.ll
@@ -5,7 +5,7 @@
; CHECK: call void @llvm.dbg.value(metadata i32 %a,
; CHECK-SAME: ![[VAR_C:[0-9]+]],
-; CHECK-SAME: !DIExpression(DW_OP_constu, 0, DW_OP_ne, DW_OP_LLVM_convert, 1, DW_ATE_unsigned, DW_OP_LLVM_convert, 32, DW_ATE_unsigned, DW_OP_constu, 0, DW_OP_eq, DW_OP_LLVM_convert, 1, DW_ATE_unsigned, DW_OP_LLVM_convert, 32, DW_ATE_unsigned, DW_OP_constu, 1, DW_OP_gt, DW_OP_LLVM_convert, 1, DW_ATE_unsigned, DW_OP_LLVM_convert, 32, DW_ATE_unsigned, DW_OP_consts, 18446744073709551615, DW_OP_gt, DW_OP_LLVM_convert, 1, DW_ATE_unsigned, DW_OP_LLVM_convert, 32, DW_ATE_unsigned, DW_OP_constu, 2, DW_OP_ge, DW_OP_LLVM_convert, 1, DW_ATE_unsigned, DW_OP_LLVM_convert, 32, DW_ATE_unsigned, DW_OP_consts, 18446744073709551614, DW_OP_ge, DW_OP_LLVM_convert, 1, DW_ATE_unsigned, DW_OP_LLVM_convert, 32, DW_ATE_unsigned, DW_OP_constu, 3, DW_OP_lt, DW_OP_LLVM_convert, 1, DW_ATE_unsigned, DW_OP_LLVM_convert, 32, DW_ATE_unsigned, DW_OP_consts, 18446744073709551613, DW_OP_lt, DW_OP_LLVM_convert, 1, DW_ATE_unsigned, DW_OP_LLVM_convert, 32, DW_ATE_unsigned, DW_OP_constu, 4, DW_OP_le, DW_OP_LLVM_convert, 1, DW_ATE_unsigned, DW_OP_LLVM_convert, 32, DW_ATE_unsigned, DW_OP_consts, 18446744073709551612, DW_OP_le, DW_OP_stack_value))
+; CHECK-SAME: !DIExpression(DW_OP_lit0, DW_OP_ne, DW_OP_LLVM_convert, 1, DW_ATE_unsigned, DW_OP_LLVM_convert, 32, DW_ATE_unsigned, DW_OP_lit0, DW_OP_eq, DW_OP_LLVM_convert, 1, DW_ATE_unsigned, DW_OP_LLVM_convert, 32, DW_ATE_unsigned, DW_OP_constu, 1, DW_OP_gt, DW_OP_LLVM_convert, 1, DW_ATE_unsigned, DW_OP_LLVM_convert, 32, DW_ATE_unsigned, DW_OP_consts, 18446744073709551615, DW_OP_gt, DW_OP_LLVM_convert, 1, DW_ATE_unsigned, DW_OP_LLVM_convert, 32, DW_ATE_unsigned, DW_OP_constu, 2, DW_OP_ge, DW_OP_LLVM_convert, 1, DW_ATE_unsigned, DW_OP_LLVM_convert, 32, DW_ATE_unsigned, DW_OP_consts, 18446744073709551614, DW_OP_ge, DW_OP_LLVM_convert, 1, DW_ATE_unsigned, DW_OP_LLVM_convert, 32, DW_ATE_unsigned, DW_OP_constu, 3, DW_OP_lt, DW_OP_LLVM_convert, 1, DW_ATE_unsigned, DW_OP_LLVM_convert, 32, DW_ATE_unsigned, DW_OP_consts, 18446744073709551613, DW_OP_lt, DW_OP_LLVM_convert, 1, DW_ATE_unsigned, DW_OP_LLVM_convert, 32, DW_ATE_unsigned, DW_OP_constu, 4, DW_OP_le, DW_OP_LLVM_convert, 1, DW_ATE_unsigned, DW_OP_LLVM_convert, 32, DW_ATE_unsigned, DW_OP_consts, 18446744073709551612, DW_OP_le, DW_OP_stack_value))
; CHECK: call void @llvm.dbg.value(metadata !DIArgList(i32 %a, i32 %a, i32 %a, i32 %b, i32 %a, i32 %b, i32 %b, i32 %a, i32 %a, i32 %b, i32 %b),
; CHECK-SAME: ![[VAR_C:[0-9]+]],
diff --git a/llvm/test/Transforms/Coroutines/swift-async-dbg.ll b/llvm/test/Transforms/Coroutines/swift-async-dbg.ll
index 74edf7a3f3a540..548b3eddb39d37 100644
--- a/llvm/test/Transforms/Coroutines/swift-async-dbg.ll
+++ b/llvm/test/Transforms/Coroutines/swift-async-dbg.ll
@@ -30,7 +30,7 @@ define swifttailcc void @coroutineA(ptr swiftasync %arg) !dbg !48 {
; CHECK-LABEL: define {{.*}} @coroutineA(
; CHECK-SAME: ptr swiftasync %[[frame_ptr:.*]])
; CHECK: @llvm.dbg.declare(metadata ptr %[[frame_ptr]], {{.*}} !DIExpression(
-; CHECK-SAME: DW_OP_plus_uconst, 16, DW_OP_plus_uconst, 8)
+; CHECK-SAME: DW_OP_plus_uconst, 24)
; CHECK: @llvm.dbg.value(metadata ptr %[[frame_ptr]], {{.*}} !DIExpression(
; CHECK-SAME: DW_OP_plus_uconst, 16, DW_OP_deref)
; CHECK: call {{.*}} @swift_task_switch
@@ -49,7 +49,7 @@ define swifttailcc void @coroutineA(ptr swiftasync %arg) !dbg !48 {
; CHECK-LABEL: define {{.*}} @coroutineATY0_(
; CHECK-SAME: ptr swiftasync %[[frame_ptr:.*]])
; CHECK: @llvm.dbg.declare(metadata ptr %[[frame_ptr]], {{.*}} !DIExpression(
-; CHECK-SAME: DW_OP_LLVM_entry_value, 1, DW_OP_plus_uconst, 16, DW_OP_plus_uconst, 8)
+; CHECK-SAME: DW_OP_LLVM_entry_value, 1, DW_OP_plus_uconst, 24)
; CHECK: @llvm.dbg.value(metadata ptr %[[frame_ptr]], {{.*}} !DIExpression(
; CHECK-SAME: DW_OP_LLVM_entry_value, 1, DW_OP_plus_uconst, 16, DW_OP_deref)
; CHECK: @llvm.dbg.value(metadata !DIArgList(ptr %[[frame_ptr]], i32 %{{.*}}), {{.*}} !DIExpression(
@@ -70,7 +70,7 @@ define swifttailcc void @coroutineA(ptr swiftasync %arg) !dbg !48 {
; CHECK-SAME: ptr swiftasync %[[frame_ptr:.*]])
; Note the extra level of indirection that shows up here!
; CHECK: @llvm.dbg.declare(metadata ptr %[[frame_ptr]], {{.*}} !DIExpression(
-; CHECK-SAME: DW_OP_LLVM_entry_value, 1, DW_OP_deref, DW_OP_plus_uconst, 16, DW_OP_plus_uconst, 8)
+; CHECK-SAME: DW_OP_LLVM_entry_value, 1, DW_OP_deref, DW_OP_plus_uconst, 24)
; CHECK: @llvm.dbg.value(metadata ptr %[[frame_ptr]], {{.*}} !DIExpression(
; CHECK-SAME: DW_OP_LLVM_entry_value, 1, DW_OP_deref, DW_OP_plus_uconst, 16, DW_OP_deref)
; CHECK: call {{.*}} @swift_task_switch
@@ -85,7 +85,7 @@ define swifttailcc void @coroutineA(ptr swiftasync %arg) !dbg !48 {
; CHECK-LABEL: define {{.*}} @coroutineATY2_(
; CHECK-SAME: ptr swiftasync %[[frame_ptr:.*]])
; CHECK: @llvm.dbg.declare(metadata ptr %[[frame_ptr]], {{.*}} !DIExpression(
-; CHECK-SAME: DW_OP_LLVM_entry_value, 1, DW_OP_plus_uconst, 16, DW_OP_plus_uconst, 8)
+; CHECK-SAME: DW_OP_LLVM_entry_value, 1, DW_OP_plus_uconst, 24)
}
; Everything from here on is just support code for the coroutines.
diff --git a/llvm/test/Transforms/InstCombine/cast-mul-select.ll b/llvm/test/Transforms/InstCombine/cast-mul-select.ll
index 50769ebe76f5c5..79d7ac9e6d0bed 100644
--- a/llvm/test/Transforms/InstCombine/cast-mul-select.ll
+++ b/llvm/test/Transforms/InstCombine/cast-mul-select.ll
@@ -207,7 +207,7 @@ define void @PR36225(i32 %a, i32 %b, i1 %c1, i3 %v1, i3 %v2) {
; DBGINFO-NEXT: entry:
; DBGINFO-NEXT: br label [[WHILE_BODY:%.*]], !dbg [[DBG94:![0-9]+]]
; DBGINFO: while.body:
-; DBGINFO-NEXT: call void @llvm.dbg.value(metadata i32 [[B:%.*]], metadata [[META89:![0-9]+]], metadata !DIExpression(DW_OP_constu, 0, DW_OP_eq, DW_OP_stack_value)), !dbg [[DBG95:![0-9]+]]
+; DBGINFO-NEXT: call void @llvm.dbg.value(metadata i32 [[B:%.*]], metadata [[META89:![0-9]+]], metadata !DIExpression(DW_OP_lit0, DW_OP_eq, DW_OP_stack_value)), !dbg [[DBG95:![0-9]+]]
; DBGINFO-NEXT: br i1 [[C1:%.*]], label [[FOR_BODY3_US:%.*]], label [[FOR_BODY3:%.*]], !dbg [[DBG96:![0-9]+]]
; DBGINFO: for.body3.us:
; DBGINFO-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[B]], 0, !dbg [[DBG95]]
diff --git a/llvm/test/Transforms/InstCombine/debuginfo-dce.ll b/llvm/test/Transforms/InstCombine/debuginfo-dce.ll
index 257222cb70c238..27e0580804cae7 100644
--- a/llvm/test/Transforms/InstCombine/debuginfo-dce.ll
+++ b/llvm/test/Transforms/InstCombine/debuginfo-dce.ll
@@ -61,7 +61,7 @@ entry:
; CHECK: define void @salvage_gep0
; CHECK-NEXT: entry:
; CHECK-NEXT: call void @llvm.dbg.value(metadata ptr %queue,
-; CHECK-SAME: metadata !DIExpression(DW_OP_constu, 8, DW_OP_minus, DW_OP_plus_uconst, 0, DW_OP_stack_value))
+; CHECK-SAME: metadata !DIExpression(DW_OP_constu, 8, DW_OP_minus, DW_OP_stack_value))
store ptr %1, ptr %im_not_dead, align 8
ret void, !dbg !26
}
diff --git a/llvm/test/Transforms/InstCombine/debuginfo-sink.ll b/llvm/test/Transforms/InstCombine/debuginfo-sink.ll
index 0c7d30d70c366b..63f09d26cce4f9 100644
--- a/llvm/test/Transforms/InstCombine/debuginfo-sink.ll
+++ b/llvm/test/Transforms/InstCombine/debuginfo-sink.ll
@@ -54,33 +54,33 @@ sink2:
ret i32 %extract
}
-; This GEP is sunk, and has multiple debug uses in the same block. Check that
-; only the last use is cloned into the sunk block, and that both of the
-; original dbg.values are salvaged.
-;
-; CHECK-LABEL: define i32 @baz(ptr
-; CHECK: call void @llvm.dbg.value(metadata ptr %a, metadata !{{[0-9]+}},
-; CHECK-SAME: metadata !DIExpression(DW_OP_plus_uconst, 4, DW_OP_stack_value))
-; CHECK-NEXT: call void @llvm.dbg.value(metadata ptr %a, metadata !{{[0-9]+}},
-; CHECK-SAME: metadata !DIExpression(DW_OP_plus_uconst, 4, DW_OP_plus_uconst, 5, DW_OP_stack_value))
-; CHECK-NEXT: br label %sink1
-
-define i32 @baz(ptr %a) !dbg !80 {
-entry:
- %gep = getelementptr i32, ptr %a, i32 1
- call void @llvm.dbg.value(metadata ptr %gep, metadata !83, metadata !12), !dbg !84
- call void @llvm.dbg.value(metadata ptr %gep, metadata !83, metadata !DIExpression(DW_OP_plus_uconst, 5)), !dbg !85
- br label %sink1
-
-sink1:
-; CHECK-LABEL: sink1:
-; CHECK: call void @llvm.dbg.value(metadata ptr %gep,
-; CHECK-SAME: metadata !{{[0-9]+}}, metadata !DIExpression(DW_OP_plus_uconst, 5))
-; CHECK-NEXT: load
- %0 = load i32, ptr %gep, align 4, !dbg !85
- ret i32 %0, !dbg !85
-}
-
+; This GEP is sunk, and has multiple debug uses in the same block. Check that
+; only the last use is cloned into the sunk block, and that both of the
+; original dbg.values are salvaged.
+;
+; CHECK-LABEL: define i32 @baz(ptr
+; CHECK: call void @llvm.dbg.value(metadata ptr %a, metadata !{{[0-9]+}},
+; CHECK-SAME: metadata !DIExpression(DW_OP_plus_uconst, 4, DW_OP_stack_value))
+; CHECK-NEXT: call void @llvm.dbg.value(metadata ptr %a, metadata !{{[0-9]+}},
+; CHECK-SAME: metadata !DIExpression(DW_OP_plus_uconst, 9, DW_OP_stack_value))
+; CHECK-NEXT: br label %sink1
+
+define i32 @baz(ptr %a) !dbg !80 {
+entry:
+ %gep = getelementptr i32, ptr %a, i32 1
+ call void @llvm.dbg.value(metadata ptr %gep, metadata !83, metadata !12), !dbg !84
+ call void @llvm.dbg.value(metadata ptr %gep, metadata !83, metadata !DIExpression(DW_OP_plus_uconst, 5)), !dbg !85
+ br label %sink1
+
+sink1:
+; CHECK-LABEL: sink1:
+; CHECK: call void @llvm.dbg.value(metadata ptr %gep,
+; CHECK-SAME: metadata !{{[0-9]+}}, metadata !DIExpression(DW_OP_plus_uconst, 5))
+; CHECK-NEXT: load
+ %0 = load i32, ptr %gep, align 4, !dbg !85
+ ret i32 %0, !dbg !85
+}
+
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4, !5}
!llvm.ident = !{!6}
@@ -105,7 +105,7 @@ sink1:
!72 = !{!10, !10, !10}
!73 = !DILocalVariable(name: "k", scope: !70, file: !1, line: 2, type: !10)
!74 = !DILocation(line: 5, column: 3, scope: !70)
-!80 = distinct !DISubprogram(name: "baz", scope: !1, file: !1, line: 2, type: !8, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
-!83 = !DILocalVariable(name: "l", scope: !80, file: !1, line: 2, type: !10)
-!84 = !DILocation(line: 5, column: 3, scope: !80)
-!85 = !DILocation(line: 6, column: 3, scope: !80)
+!80 = distinct !DISubprogram(name: "baz", scope: !1, file: !1, line: 2, type: !8, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
+!83 = !DILocalVariable(name: "l", scope: !80, file: !1, line: 2, type: !10)
+!84 = !DILocation(line: 5, column: 3, scope: !80)
+!85 = !DILocation(line: 6, column: 3, scope: !80)
diff --git a/llvm/unittests/IR/MetadataTest.cpp b/llvm/unittests/IR/MetadataTest.cpp
index c6c9b2a683f9e9..03b8758754b9cb 100644
--- a/llvm/unittests/IR/MetadataTest.cpp
+++ b/llvm/unittests/IR/MetadataTest.cpp
@@ -3399,6 +3399,113 @@ TEST_F(DIExpressionTest, Fold) {
EXPECT_EQ(E, ResExpr);
}
+TEST_F(DIExpressionTest, Append) {
+ // Test appending a {dwarf::DW_OP_constu, <const>, DW_OP_plus} to a DW_OP_plus
+ // expression
+ SmallVector<uint64_t, 8> Ops = {dwarf::DW_OP_LLVM_arg, 0, dwarf::DW_OP_constu,
+ 2, dwarf::DW_OP_plus};
+ auto *Expr = DIExpression::get(Context, Ops);
+ SmallVector<uint64_t, 8> AppendOps = {dwarf::DW_OP_constu, 3,
+ dwarf::DW_OP_plus};
+ auto *AppendExpr = DIExpression::append(Expr, AppendOps);
+ SmallVector<uint64_t, 8> OpsRes = {dwarf::DW_OP_LLVM_arg, 0,
+ dwarf::DW_OP_plus_uconst, 5};
+ auto *ResExpr = DIExpression::get(Context, OpsRes);
+ EXPECT_EQ(ResExpr, AppendExpr);
+ auto *AppendToArgExpr =
+ DIExpression::appendOpsToArg(Expr, AppendOps, 0, false);
+ EXPECT_EQ(ResExpr, AppendToArgExpr);
+
+ // Test appending a {dwarf::DW_OP_plus_uconst, <const>} to a DW_OP_plus
+ // expression uint64_t PlusUConstOps[] = {dwarf::DW_OP_plus_uconst, 3};
+ AppendOps.clear();
+ AppendOps.push_back(dwarf::DW_OP_plus_uconst);
+ AppendOps.push_back(3);
+ AppendExpr = DIExpression::append(Expr, AppendOps);
+ OpsRes.clear();
+ OpsRes.push_back(dwarf::DW_OP_LLVM_arg);
+ OpsRes.push_back(0);
+ OpsRes.push_back(dwarf::DW_OP_plus_uconst);
+ OpsRes.push_back(5);
+ ResExpr = DIExpression::get(Context, OpsRes);
+ EXPECT_EQ(ResExpr, AppendExpr);
+ AppendToArgExpr = DIExpression::appendOpsToArg(Expr, AppendOps, 0, false);
+ EXPECT_EQ(ResExpr, AppendToArgExpr);
+
+ // Test appending a {dwarf::DW_OP_constu, 0, DW_OP_plus} to an expression
+ AppendOps[0] = dwarf::DW_OP_constu;
+ AppendOps[1] = 0;
+ AppendOps.push_back(dwarf::DW_OP_plus);
+ AppendExpr = DIExpression::append(Expr, AppendOps);
+ OpsRes[2] = dwarf::DW_OP_plus_uconst;
+ OpsRes[3] = Ops[3];
+ ResExpr = DIExpression::get(Context, OpsRes);
+ EXPECT_EQ(ResExpr, AppendExpr);
+ AppendToArgExpr = DIExpression::appendOpsToArg(Expr, AppendOps, 0, false);
+ EXPECT_EQ(ResExpr, AppendToArgExpr);
+
+ // Test appending a {dwarf::DW_OP_constu, 0, DW_OP_minus} to an expression
+ AppendOps[2] = dwarf::DW_OP_minus;
+ AppendExpr = DIExpression::append(Expr, AppendOps);
+ OpsRes[3] = Ops[3];
+ ResExpr = DIExpression::get(Context, OpsRes);
+ EXPECT_EQ(ResExpr, AppendExpr);
+ AppendToArgExpr = DIExpression::appendOpsToArg(Expr, AppendOps, 0, false);
+ EXPECT_EQ(ResExpr, AppendToArgExpr);
+
+ // Test appending a {dwarf::DW_OP_constu, 0, DW_OP_shl} to an expression
+ AppendOps[2] = dwarf::DW_OP_shl;
+ AppendExpr = DIExpression::append(Expr, AppendOps);
+ OpsRes[3] = Ops[3];
+ ResExpr = DIExpression::get(Context, OpsRes);
+ EXPECT_EQ(ResExpr, AppendExpr);
+ AppendToArgExpr = DIExpression::appendOpsToArg(Expr, AppendOps, 0, false);
+ EXPECT_EQ(ResExpr, AppendToArgExpr);
+
+ // Test appending a {dwarf::DW_OP_constu, 0, DW_OP_shr} to an expression
+ AppendOps[2] = dwarf::DW_OP_shr;
+ AppendExpr = DIExpression::append(Expr, AppendOps);
+ OpsRes[3] = Ops[3];
+ ResExpr = DIExpression::get(Context, OpsRes);
+ EXPECT_EQ(ResExpr, AppendExpr);
+ AppendToArgExpr = DIExpression::appendOpsToArg(Expr, AppendOps, 0, false);
+ EXPECT_EQ(ResExpr, AppendToArgExpr);
+
+ // Test appending a {dwarf::DW_OP_constu, <const>, DW_OP_mul} to a DW_OP_mul
+ // expression
+ Ops[4] = dwarf::DW_OP_mul;
+ Expr = DIExpression::get(Context, Ops);
+ AppendOps[1] = 3;
+ AppendOps[2] = dwarf::DW_OP_mul;
+ AppendExpr = DIExpression::append(Expr, AppendOps);
+ OpsRes[2] = dwarf::DW_OP_constu;
+ OpsRes[3] = 6;
+ OpsRes.push_back(dwarf::DW_OP_mul);
+ ResExpr = DIExpression::get(Context, OpsRes);
+ EXPECT_EQ(ResExpr, AppendExpr);
+ AppendToArgExpr = DIExpression::appendOpsToArg(Expr, AppendOps, 0, false);
+ EXPECT_EQ(ResExpr, AppendToArgExpr);
+
+ // Test appending a {dwarf::DW_OP_constu, 1, DW_OP_mul} to an expression
+ AppendOps[1] = 1;
+ AppendExpr = DIExpression::append(Expr, AppendOps);
+ OpsRes[3] = Ops[3];
+ ResExpr = DIExpression::get(Context, OpsRes);
+ EXPECT_EQ(ResExpr, AppendExpr);
+ AppendToArgExpr = DIExpression::appendOpsToArg(Expr, AppendOps, 0, false);
+ EXPECT_EQ(ResExpr, AppendToArgExpr);
+
+ // Test appending a {dwarf::DW_OP_constu, 1, DW_OP_div} to an expression
+ AppendOps[1] = 1;
+ AppendOps[2] = dwarf::DW_OP_div;
+ AppendExpr = DIExpression::append(Expr, AppendOps);
+ OpsRes[3] = Ops[3];
+ ResExpr = DIExpression::get(Context, OpsRes);
+ EXPECT_EQ(ResExpr, AppendExpr);
+ AppendToArgExpr = DIExpression::appendOpsToArg(Expr, AppendOps, 0, false);
+ EXPECT_EQ(ResExpr, AppendToArgExpr);
+}
+
TEST_F(DIExpressionTest, isValid) {
#define EXPECT_VALID(...) \
do { \
diff --git a/llvm/unittests/Transforms/Utils/LocalTest.cpp b/llvm/unittests/Transforms/Utils/LocalTest.cpp
index 82257741045754..2d83e09e9af2f4 100644
--- a/llvm/unittests/Transforms/Utils/LocalTest.cpp
+++ b/llvm/unittests/Transforms/Utils/LocalTest.cpp
@@ -544,8 +544,7 @@ struct SalvageDebugInfoTest : ::testing::Test {
const auto &CI = *cast<ConstantInt>(DI.getVariableLocationOp(0));
if (CI.isZero())
return DI.getExpression()->getElements().equals(
- {dwarf::DW_OP_plus_uconst, 1, dwarf::DW_OP_plus_uconst, 2,
- dwarf::DW_OP_stack_value});
+ {dwarf::DW_OP_plus_uconst, 3, dwarf::DW_OP_stack_value});
else if (CI.isOneValue())
return DI.getExpression()->getElements().equals(
{dwarf::DW_OP_plus_uconst, 2, dwarf::DW_OP_stack_value});
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