maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/mlir/lib/EDSC/MLIREmitter.cpp

605 lines
22 KiB
C++
Raw Blame History

//===- MLIREmitter.cpp - MLIR EDSC Emitter Class Implementation -*- C++ -*-===//
//
// Copyright 2019 The MLIR Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// =============================================================================
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#include "mlir-c/Core.h"
#include "mlir/AffineOps/AffineOps.h"
#include "mlir/Analysis/AffineAnalysis.h"
#include "mlir/EDSC/MLIREmitter.h"
#include "mlir/EDSC/Types.h"
#include "mlir/IR/Builders.h"
#include "mlir/IR/Instruction.h"
#include "mlir/IR/IntegerSet.h"
#include "mlir/IR/Location.h"
#include "mlir/IR/OpDefinition.h"
#include "mlir/IR/Value.h"
#include "mlir/StandardOps/Ops.h"
#include "mlir/SuperVectorOps/SuperVectorOps.h"
#include "mlir/Support/Functional.h"
#include "mlir/Support/STLExtras.h"
using llvm::dbgs;
using llvm::errs;
#define DEBUG_TYPE "edsc"
using namespace mlir;
using namespace mlir::edsc;
using namespace mlir::edsc::detail;
static void printDefininingStatement(llvm::raw_ostream &os, const Value &v) {
const auto *inst = v.getDefiningInst();
if (inst) {
inst->print(os);
return;
}
if (auto forInst = getForInductionVarOwner(&v)) {
forInst->getInstruction()->print(os);
} else if (auto *bbArg = dyn_cast<BlockArgument>(&v)) {
os << "block_argument";
} else {
os << "unknown_ssa_value";
}
}
mlir::edsc::MLIREmitter::MLIREmitter(FuncBuilder *builder, Location location)
: builder(builder), location(location), zeroIndex(builder->getIndexType()),
oneIndex(builder->getIndexType()) {
// Build the ubiquitous zero and one at the top of the function.
bindConstant<ConstantIndexOp>(Bindable(zeroIndex), 0);
bindConstant<ConstantIndexOp>(Bindable(oneIndex), 1);
}
MLIREmitter &mlir::edsc::MLIREmitter::bind(Bindable e, Value *v) {
LLVM_DEBUG(printDefininingStatement(llvm::dbgs() << "\nBinding " << e << " @"
<< e.getStoragePtr() << ": ",
*v));
auto it = ssaBindings.insert(std::make_pair(e, v));
if (!it.second) {
printDefininingStatement(llvm::errs() << "\nRebinding " << e << " @"
<< e.getStoragePtr() << " ",
*v);
llvm_unreachable("Double binding!");
}
return *this;
}
static void checkAffineProvenance(ArrayRef<Value *> values) {
for (Value *v : values) {
auto *def = v->getDefiningInst();
(void)def;
// There may be no defining instruction if the value is a function
// argument. We accept such values.
assert((!def || def->isa<ConstantIndexOp>() || def->isa<AffineApplyOp>() ||
def->isa<AffineForOp>() || def->isa<DimOp>()) &&
"loop bound expression must have affine provenance");
}
}
static OpPointer<AffineForOp> emitStaticFor(FuncBuilder &builder, Location loc,
ArrayRef<Value *> lbs,
ArrayRef<Value *> ubs,
uint64_t step) {
if (lbs.size() != 1 || ubs.size() != 1)
return OpPointer<AffineForOp>();
auto *lbDef = lbs.front()->getDefiningInst();
auto *ubDef = ubs.front()->getDefiningInst();
if (!lbDef || !ubDef)
return OpPointer<AffineForOp>();
auto lbConst = lbDef->dyn_cast<ConstantIndexOp>();
auto ubConst = ubDef->dyn_cast<ConstantIndexOp>();
if (!lbConst || !ubConst)
return OpPointer<AffineForOp>();
return builder.create<AffineForOp>(loc, lbConst->getValue(),
ubConst->getValue(), step);
}
Value *mlir::edsc::MLIREmitter::emitExpr(Expr e) {
// It is still necessary in case we try to emit a bindable directly
// FIXME: make sure isa<Bindable> works and use it below to delegate emission
// to Expr::build and remove this, now duplicate, check.
auto it = ssaBindings.find(e);
if (it != ssaBindings.end()) {
return it->second;
}
Value *res = nullptr;
bool expectedEmpty = false;
if (e.isa<UnaryExpr>() || e.isa<BinaryExpr>() || e.isa<TernaryExpr>() ||
e.isa<VariadicExpr>()) {
// Emit any successors before the instruction with successors. At this
// point, all values defined by the current block must have been bound, the
// current instruction with successors cannot define new values, so the
// successor can use those values.
assert(e.getSuccessors().empty() || e.getResultTypes().empty() &&
"an operation with successors must "
"not have results and vice versa");
for (StmtBlock block : e.getSuccessors())
emitBlock(block);
auto results = e.build(*builder, ssaBindings, blockBindings);
assert(results.size() <= 1 && "2+-result exprs are not supported");
expectedEmpty = results.empty();
if (!results.empty())
res = results.front();
}
if (auto expr = e.dyn_cast<StmtBlockLikeExpr>()) {
if (expr.getKind() == ExprKind::For) {
auto exprGroups = expr.getAllArgumentGroups();
assert(exprGroups.size() == 3 && "expected 3 expr groups in `for`");
assert(!exprGroups[0].empty() && "expected at least one lower bound");
assert(!exprGroups[1].empty() && "expected at least one upper bound");
assert(exprGroups[2].size() == 1 &&
"the third group (step) must have one element");
auto lbs = emitExprs(exprGroups[0]);
auto ubs = emitExprs(exprGroups[1]);
auto stepExpr = emitExpr(exprGroups[2][0]);
if (llvm::any_of(lbs, [](Value *v) { return !v; }) ||
llvm::any_of(ubs, [](Value *v) { return !v; }) || !stepExpr)
return nullptr;
checkAffineProvenance(lbs);
checkAffineProvenance(ubs);
// Step must be a static constant.
auto step =
stepExpr->getDefiningInst()->cast<ConstantIndexOp>()->getValue();
// Special case with more concise emitted code for static bounds.
OpPointer<AffineForOp> forOp =
emitStaticFor(*builder, location, lbs, ubs, step);
// General case.
if (!forOp)
forOp = builder->create<AffineForOp>(
location, lbs, builder->getMultiDimIdentityMap(lbs.size()), ubs,
builder->getMultiDimIdentityMap(ubs.size()), step);
forOp->createBody();
res = forOp->getInductionVar();
}
}
if (!res && !expectedEmpty) {
// If we hit here it must mean that the Bindables have not all been bound
// properly. Because EDSCs are currently dynamically typed, it becomes a
// runtime error.
e.print(llvm::errs() << "\nError @" << e.getStoragePtr() << ": ");
auto it = ssaBindings.find(e);
if (it != ssaBindings.end()) {
it->second->print(llvm::errs() << "\nError on value: ");
} else {
llvm::errs() << "\nUnbound";
}
return nullptr;
}
auto resIter = ssaBindings.insert(std::make_pair(e, res));
(void)resIter;
assert(resIter.second && "insertion failed");
return res;
}
SmallVector<Value *, 8>
mlir::edsc::MLIREmitter::emitExprs(ArrayRef<Expr> exprs) {
SmallVector<Value *, 8> res;
res.reserve(exprs.size());
for (auto e : exprs) {
res.push_back(this->emitExpr(e));
LLVM_DEBUG(
printDefininingStatement(llvm::dbgs() << "\nEmitted: ", *res.back()));
}
return res;
}
mlir::edsc::MLIREmitter &mlir::edsc::MLIREmitter::emitStmt(const Stmt &stmt) {
auto *block = builder->getBlock();
auto ip = builder->getInsertionPoint();
auto *val = emitExpr(stmt.getRHS());
if (!val) {
assert((stmt.getRHS().is_op<DeallocOp>() ||
stmt.getRHS().is_op<StoreOp>() || stmt.getRHS().is_op<ReturnOp>() ||
stmt.getRHS().is_op<CallIndirectOp>() ||
stmt.getRHS().is_op<BranchOp>() ||
stmt.getRHS().is_op<CondBranchOp>()) &&
"dealloc, store, return, br, cond_br or call_indirect expected as "
"the only 0-result ops");
if (stmt.getRHS().is_op<CallIndirectOp>()) {
assert(
stmt.getRHS().cast<VariadicExpr>().getTypes().empty() &&
"function call produced 0 results from a non-zero-result function");
}
return *this;
}
// Force create a bindable from stmt.lhs and bind it.
bind(Bindable(stmt.getLHS()), val);
if (stmt.getRHS().getKind() == ExprKind::For) {
// Step into the loop.
builder->setInsertionPointToStart(getForInductionVarOwner(val)->getBody());
}
emitStmts(stmt.getEnclosedStmts());
builder->setInsertionPoint(block, ip);
return *this;
}
void mlir::edsc::MLIREmitter::emitStmts(ArrayRef<Stmt> stmts) {
for (auto &stmt : stmts) {
emitStmt(stmt);
}
}
mlir::edsc::MLIREmitter &
mlir::edsc::MLIREmitter::emitBlock(const StmtBlock &block) {
// If we have already emitted this block, do nothing.
if (blockBindings.count(block) != 0)
return *this;
// Otherwise, save the current insertion point.
auto previousBlock = builder->getInsertionBlock();
auto previousInstr = builder->getInsertionPoint();
// Create a new IR block and emit the enclosed statements in that block. Bind
// the block argument expressions to the arguments of the emitted IR block.
auto irBlock = builder->createBlock();
blockBindings.insert({block, irBlock});
for (const auto &kvp :
llvm::zip(block.getArguments(), block.getArgumentTypes())) {
Bindable expr = std::get<0>(kvp);
assert(expr.getKind() == ExprKind::Unbound &&
"cannot use bound expressions as block arguments");
Type type = std::get<1>(kvp);
bind(expr, irBlock->addArgument(type));
}
emitStmts(block.getBody());
// And finally restore the original insertion point.
builder->setInsertionPoint(previousBlock, previousInstr);
return *this;
}
static bool isDynamicSize(int size) { return size < 0; }
/// This function emits the proper Value* at the place of insertion of b,
/// where each value is the proper ConstantOp or DimOp. Returns a vector with
/// these Value*. Note this function does not concern itself with hoisting of
/// constants and will produce redundant IR. Subsequent MLIR simplification
/// passes like LICM and CSE are expected to clean this up.
///
/// More specifically, a MemRefType has a shape vector in which:
/// - constant ranks are embedded explicitly with their value;
/// - symbolic ranks are represented implicitly by -1 and need to be recovered
/// with a DimOp operation.
///
/// Example:
/// When called on:
///
/// ```mlir
/// memref<?x3x4x?x5xf32>
/// ```
///
/// This emits MLIR similar to:
///
/// ```mlir
/// %d0 = dim %0, 0 : memref<?x3x4x?x5xf32>
/// %c3 = constant 3 : index
/// %c4 = constant 4 : index
/// %d3 = dim %0, 3 : memref<?x3x4x?x5xf32>
/// %c5 = constant 5 : index
/// ```
///
/// and returns the vector with {%d0, %c3, %c4, %d3, %c5}.
static SmallVector<Value *, 8> getMemRefSizes(FuncBuilder *b, Location loc,
Value *memRef) {
assert(memRef->getType().isa<MemRefType>() && "Expected a MemRef value");
MemRefType memRefType = memRef->getType().cast<MemRefType>();
SmallVector<Value *, 8> res;
res.reserve(memRefType.getShape().size());
const auto &shape = memRefType.getShape();
for (unsigned idx = 0, n = shape.size(); idx < n; ++idx) {
if (isDynamicSize(shape[idx])) {
res.push_back(b->create<DimOp>(loc, memRef, idx));
} else {
res.push_back(b->create<ConstantIndexOp>(loc, shape[idx]));
}
}
return res;
}
SmallVector<edsc::Expr, 8>
mlir::edsc::MLIREmitter::makeBoundFunctionArguments(mlir::Function *function) {
SmallVector<edsc::Expr, 8> res;
for (unsigned pos = 0, npos = function->getNumArguments(); pos < npos;
++pos) {
auto *arg = function->getArgument(pos);
Expr b(arg->getType());
bind(Bindable(b), arg);
res.push_back(Expr(b));
}
return res;
}
SmallVector<edsc::Expr, 8>
mlir::edsc::MLIREmitter::makeBoundMemRefShape(Value *memRef) {
assert(memRef->getType().isa<MemRefType>() && "Expected a MemRef value");
MemRefType memRefType = memRef->getType().cast<MemRefType>();
auto memRefSizes =
edsc::makeNewExprs(memRefType.getShape().size(), builder->getIndexType());
auto memrefSizeValues = getMemRefSizes(getBuilder(), getLocation(), memRef);
assert(memrefSizeValues.size() == memRefSizes.size());
bindZipRange(llvm::zip(memRefSizes, memrefSizeValues));
SmallVector<edsc::Expr, 8> res(memRefSizes.begin(), memRefSizes.end());
return res;
}
mlir::edsc::MLIREmitter::BoundMemRefView
mlir::edsc::MLIREmitter::makeBoundMemRefView(Value *memRef) {
auto memRefType = memRef->getType().cast<mlir::MemRefType>();
auto rank = memRefType.getRank();
SmallVector<edsc::Expr, 8> lbs;
lbs.reserve(rank);
Expr zero(builder->getIndexType());
bindConstant<mlir::ConstantIndexOp>(Bindable(zero), 0);
for (unsigned i = 0; i < rank; ++i) {
lbs.push_back(zero);
}
auto ubs = makeBoundMemRefShape(memRef);
SmallVector<edsc::Expr, 8> steps;
lbs.reserve(rank);
Expr one(builder->getIndexType());
bindConstant<mlir::ConstantIndexOp>(Bindable(one), 1);
for (unsigned i = 0; i < rank; ++i) {
steps.push_back(one);
}
return BoundMemRefView{lbs, ubs, steps};
}
mlir::edsc::MLIREmitter::BoundMemRefView
mlir::edsc::MLIREmitter::makeBoundMemRefView(Expr boundMemRef) {
auto *v = getValue(mlir::edsc::Expr(boundMemRef));
assert(v && "Expected a bound Expr");
return makeBoundMemRefView(v);
}
OpPointer<AffineForOp> mlir::edsc::MLIREmitter::getAffineForOp(Expr e) {
auto *value = ssaBindings.lookup(e);
assert(value && "Expr not bound");
return getForInductionVarOwner(value);
}
edsc_expr_t bindConstantBF16(edsc_mlir_emitter_t emitter, double value) {
auto *e = reinterpret_cast<mlir::edsc::MLIREmitter *>(emitter);
Expr b(e->getBuilder()->getBF16Type());
e->bindConstant<mlir::ConstantFloatOp>(Bindable(b), mlir::APFloat(value),
e->getBuilder()->getBF16Type());
return b;
}
edsc_expr_t bindConstantF16(edsc_mlir_emitter_t emitter, float value) {
auto *e = reinterpret_cast<mlir::edsc::MLIREmitter *>(emitter);
Expr b(e->getBuilder()->getBF16Type());
bool unused;
mlir::APFloat val(value);
val.convert(e->getBuilder()->getF16Type().getFloatSemantics(),
mlir::APFloat::rmNearestTiesToEven, &unused);
e->bindConstant<mlir::ConstantFloatOp>(Bindable(b), val,
e->getBuilder()->getF16Type());
return b;
}
edsc_expr_t bindConstantF32(edsc_mlir_emitter_t emitter, float value) {
auto *e = reinterpret_cast<mlir::edsc::MLIREmitter *>(emitter);
Expr b(e->getBuilder()->getF32Type());
e->bindConstant<mlir::ConstantFloatOp>(Bindable(b), mlir::APFloat(value),
e->getBuilder()->getF32Type());
return b;
}
edsc_expr_t bindConstantF64(edsc_mlir_emitter_t emitter, double value) {
auto *e = reinterpret_cast<mlir::edsc::MLIREmitter *>(emitter);
Expr b(e->getBuilder()->getF64Type());
e->bindConstant<mlir::ConstantFloatOp>(Bindable(b), mlir::APFloat(value),
e->getBuilder()->getF64Type());
return b;
}
edsc_expr_t bindConstantInt(edsc_mlir_emitter_t emitter, int64_t value,
unsigned bitwidth) {
auto *e = reinterpret_cast<mlir::edsc::MLIREmitter *>(emitter);
Expr b(e->getBuilder()->getIntegerType(bitwidth));
e->bindConstant<mlir::ConstantIntOp>(
b, value, e->getBuilder()->getIntegerType(bitwidth));
return b;
}
edsc_expr_t bindConstantIndex(edsc_mlir_emitter_t emitter, int64_t value) {
auto *e = reinterpret_cast<mlir::edsc::MLIREmitter *>(emitter);
Expr b(e->getBuilder()->getIndexType());
e->bindConstant<mlir::ConstantIndexOp>(Bindable(b), value);
return b;
}
edsc_expr_t bindConstantFunction(edsc_mlir_emitter_t emitter,
mlir_func_t function) {
auto *e = reinterpret_cast<mlir::edsc::MLIREmitter *>(emitter);
auto *f = reinterpret_cast<mlir::Function *>(function);
Expr b(f->getType());
e->bindConstant<mlir::ConstantOp>(Bindable(b),
e->getBuilder()->getFunctionAttr(f));
return b;
}
unsigned getRankOfFunctionArgument(mlir_func_t function, unsigned pos) {
auto *f = reinterpret_cast<mlir::Function *>(function);
assert(pos < f->getNumArguments());
auto *arg = *(f->getArguments().begin() + pos);
if (auto memRefType = arg->getType().dyn_cast<mlir::MemRefType>()) {
return memRefType.getRank();
}
return 0;
}
mlir_type_t getTypeOfFunctionArgument(mlir_func_t function, unsigned pos) {
auto *f = reinterpret_cast<mlir::Function *>(function);
assert(pos < f->getNumArguments());
auto *arg = *(f->getArguments().begin() + pos);
return mlir_type_t{arg->getType().getAsOpaquePointer()};
}
edsc_expr_t bindFunctionArgument(edsc_mlir_emitter_t emitter,
mlir_func_t function, unsigned pos) {
auto *e = reinterpret_cast<mlir::edsc::MLIREmitter *>(emitter);
auto *f = reinterpret_cast<mlir::Function *>(function);
assert(pos < f->getNumArguments());
auto *arg = *(f->getArguments().begin() + pos);
Expr b(arg->getType());
e->bind(Bindable(b), arg);
return Expr(b);
}
void bindFunctionArguments(edsc_mlir_emitter_t emitter, mlir_func_t function,
edsc_expr_list_t *result) {
auto *e = reinterpret_cast<mlir::edsc::MLIREmitter *>(emitter);
auto *f = reinterpret_cast<mlir::Function *>(function);
assert(result->n == f->getNumArguments());
for (unsigned pos = 0; pos < result->n; ++pos) {
auto *arg = *(f->getArguments().begin() + pos);
Expr b(arg->getType());
e->bind(Bindable(b), arg);
result->exprs[pos] = Expr(b);
}
}
unsigned getBoundMemRefRank(edsc_mlir_emitter_t emitter,
edsc_expr_t boundMemRef) {
auto *e = reinterpret_cast<mlir::edsc::MLIREmitter *>(emitter);
auto *v = e->getValue(mlir::edsc::Expr(boundMemRef));
assert(v && "Expected a bound Expr");
auto memRefType = v->getType().cast<mlir::MemRefType>();
return memRefType.getRank();
}
void bindMemRefShape(edsc_mlir_emitter_t emitter, edsc_expr_t boundMemRef,
edsc_expr_list_t *result) {
auto *e = reinterpret_cast<mlir::edsc::MLIREmitter *>(emitter);
auto *v = e->getValue(mlir::edsc::Expr(boundMemRef));
assert(v && "Expected a bound Expr");
auto memRefType = v->getType().cast<mlir::MemRefType>();
auto rank = memRefType.getRank();
assert(result->n == rank && "Unexpected memref shape binding results count");
auto bindables = e->makeBoundMemRefShape(v);
for (unsigned i = 0; i < rank; ++i) {
result->exprs[i] = bindables[i];
}
}
void bindMemRefView(edsc_mlir_emitter_t emitter, edsc_expr_t boundMemRef,
edsc_expr_list_t *resultLbs, edsc_expr_list_t *resultUbs,
edsc_expr_list_t *resultSteps) {
auto *e = reinterpret_cast<mlir::edsc::MLIREmitter *>(emitter);
auto *v = e->getValue(mlir::edsc::Expr(boundMemRef));
auto memRefType = v->getType().cast<mlir::MemRefType>();
auto rank = memRefType.getRank();
assert(resultLbs->n == rank && "Unexpected memref binding results count");
assert(resultUbs->n == rank && "Unexpected memref binding results count");
assert(resultSteps->n == rank && "Unexpected memref binding results count");
auto bindables = e->makeBoundMemRefShape(v);
Expr zero(e->getBuilder()->getIndexType());
e->bindConstant<mlir::ConstantIndexOp>(zero, 0);
Expr one(e->getBuilder()->getIndexType());
e->bindConstant<mlir::ConstantIndexOp>(one, 1);
for (unsigned i = 0; i < rank; ++i) {
resultLbs->exprs[i] = zero;
resultUbs->exprs[i] = bindables[i];
resultSteps->exprs[i] = one;
}
}
#define DEFINE_EDSL_BINARY_OP(FUN_NAME, OP_SYMBOL) \
edsc_expr_t FUN_NAME(edsc_expr_t e1, edsc_expr_t e2) { \
using edsc::op::operator OP_SYMBOL; \
return Expr(e1) OP_SYMBOL Expr(e2); \
}
DEFINE_EDSL_BINARY_OP(Add, +);
DEFINE_EDSL_BINARY_OP(Sub, -);
DEFINE_EDSL_BINARY_OP(Mul, *);
DEFINE_EDSL_BINARY_OP(Div, /);
DEFINE_EDSL_BINARY_OP(Rem, %);
DEFINE_EDSL_BINARY_OP(LT, <);
DEFINE_EDSL_BINARY_OP(LE, <=);
DEFINE_EDSL_BINARY_OP(GT, >);
DEFINE_EDSL_BINARY_OP(GE, >=);
DEFINE_EDSL_BINARY_OP(EQ, ==);
DEFINE_EDSL_BINARY_OP(NE, !=);
DEFINE_EDSL_BINARY_OP(And, &&);
DEFINE_EDSL_BINARY_OP(Or, ||);
#undef DEFINE_EDSL_BINARY_OP
edsc_expr_t FloorDiv(edsc_expr_t e1, edsc_expr_t e2) {
return edsc::floorDiv(Expr(e1), Expr(e2));
}
edsc_expr_t CeilDiv(edsc_expr_t e1, edsc_expr_t e2) {
return edsc::ceilDiv(Expr(e1), Expr(e2));
}
#define DEFINE_EDSL_UNARY_OP(FUN_NAME, OP_SYMBOL) \
edsc_expr_t FUN_NAME(edsc_expr_t e) { \
using edsc::op::operator OP_SYMBOL; \
return (OP_SYMBOL(Expr(e))); \
}
DEFINE_EDSL_UNARY_OP(Negate, !);
#undef DEFINE_EDSL_UNARY_OP
edsc_expr_t Call0(edsc_expr_t callee, edsc_expr_list_t args) {
SmallVector<Expr, 8> exprArgs;
exprArgs.reserve(args.n);
for (int i = 0; i < args.n; ++i) {
exprArgs.push_back(Expr(args.exprs[i]));
}
return edsc::call(Expr(callee), exprArgs);
}
edsc_expr_t Call1(edsc_expr_t callee, mlir_type_t result,
edsc_expr_list_t args) {
SmallVector<Expr, 8> exprArgs;
exprArgs.reserve(args.n);
for (int i = 0; i < args.n; ++i) {
exprArgs.push_back(Expr(args.exprs[i]));
}
return edsc::call(
Expr(callee),
Type::getFromOpaquePointer(reinterpret_cast<const void *>(result)),
exprArgs);
}
Reference in New Issue View Git Blame Copy Permalink