[flang-commits] [flang] 61da636 - [flang] Initial debug info support for local variables. (#90905)
via flang-commits
flang-commits at lists.llvm.org
Wed May 15 07:20:31 PDT 2024
Author: Abid Qadeer
Date: 2024-05-15T15:20:27+01:00
New Revision: 61da6366d043792d7db280ce9edd2db62516e0e8
URL: https://github.com/llvm/llvm-project/commit/61da6366d043792d7db280ce9edd2db62516e0e8
DIFF: https://github.com/llvm/llvm-project/commit/61da6366d043792d7db280ce9edd2db62516e0e8.diff
LOG: [flang] Initial debug info support for local variables. (#90905)
We need the information in the `DeclareOp` to generate debug information
for variables. Currently, cg-rewrite removes the `DeclareOp`. As
`AddDebugInfo` runs after that, it cannot process the `DeclareOp`. My
initial plan was to make the `AddDebugInfo` pass run before the cg-rewrite
but that has few issues.
1. Initially I was thinking to use the memref op to carry the variable
attr. But as @tblah suggested in the #86939, it makes more sense to
carry that information on `DeclareOp`. It also makes it easy to handle
it in codegen and there is no special handling needed for arguments. For
this reason, we need to preserve the `DeclareOp` till the codegen.
2. Running earlier, we will miss the changes in passes that run between
cg-rewrite and codegen.
But not removing the DeclareOp in cg-rewrite has the issue that ShapeOp
remains and it causes errors during codegen. To solve this problem, I
convert DeclareOp to XDeclareOp in cg-rewrite instead of removing
it. This was mentioned as possible solution by @jeanPerier in
https://reviews.llvm.org/D136254
The conversion follows similar logic as used for other operators in that
file. The FortranAttr and CudaAttr are currently not converted but left
as TODO when the need arise.
Now `AddDebugInfo` pass can extracts information about local variables
from `XDeclareOp` and creates `DILocalVariableAttr`. These are attached
to `XDeclareOp` using `FusedLoc` approach. Codegen can use them to
create `DbgDeclareOp`. I have added tests that checks the debug
information in mlir from and also in llvm ir.
Currently we only handle very limited types. Rest are given a place
holder type. The previous placeholder type was basic type with
`DW_ATE_address` encoding. When variables are added, it started
causing assertions in the llvm debug info generation logic for some
types. It has been changed to an interger type to prevent these issues
until we handle those types properly.
Added:
flang/include/flang/Optimizer/CodeGen/CGOps.h
flang/test/Transforms/debug-local-var-2.f90
flang/test/Transforms/debug-local-var.f90
Modified:
flang/include/flang/Optimizer/CodeGen/CGOps.td
flang/include/flang/Optimizer/CodeGen/CGPasses.td
flang/include/flang/Optimizer/CodeGen/CodeGen.h
flang/include/flang/Tools/CLOptions.inc
flang/lib/Optimizer/CodeGen/CGOps.cpp
flang/lib/Optimizer/CodeGen/CodeGen.cpp
flang/lib/Optimizer/CodeGen/PreCGRewrite.cpp
flang/lib/Optimizer/Transforms/AddDebugInfo.cpp
flang/lib/Optimizer/Transforms/DebugTypeGenerator.cpp
flang/test/Fir/declare-codegen.fir
flang/test/Fir/dummy-scope-codegen.fir
Removed:
flang/lib/Optimizer/CodeGen/CGOps.h
################################################################################
diff --git a/flang/lib/Optimizer/CodeGen/CGOps.h b/flang/include/flang/Optimizer/CodeGen/CGOps.h
similarity index 94%
rename from flang/lib/Optimizer/CodeGen/CGOps.h
rename to flang/include/flang/Optimizer/CodeGen/CGOps.h
index b5a6d5bb9a9e6..df909d9ee81cb 100644
--- a/flang/lib/Optimizer/CodeGen/CGOps.h
+++ b/flang/include/flang/Optimizer/CodeGen/CGOps.h
@@ -13,6 +13,7 @@
#ifndef OPTIMIZER_CODEGEN_CGOPS_H
#define OPTIMIZER_CODEGEN_CGOPS_H
+#include "flang/Optimizer/Dialect/FIRAttr.h"
#include "flang/Optimizer/Dialect/FIRType.h"
#include "mlir/Dialect/Func/IR/FuncOps.h"
diff --git a/flang/include/flang/Optimizer/CodeGen/CGOps.td b/flang/include/flang/Optimizer/CodeGen/CGOps.td
index 35e70fa2ffa3f..c375edee1fa77 100644
--- a/flang/include/flang/Optimizer/CodeGen/CGOps.td
+++ b/flang/include/flang/Optimizer/CodeGen/CGOps.td
@@ -16,6 +16,8 @@
include "mlir/IR/SymbolInterfaces.td"
include "flang/Optimizer/Dialect/FIRTypes.td"
+include "flang/Optimizer/Dialect/FIRAttr.td"
+include "mlir/IR/BuiltinAttributes.td"
def fircg_Dialect : Dialect {
let name = "fircg";
@@ -202,4 +204,36 @@ def fircg_XArrayCoorOp : fircg_Op<"ext_array_coor", [AttrSizedOperandSegments]>
}];
}
+// Extended Declare operation.
+def fircg_XDeclareOp : fircg_Op<"ext_declare", [AttrSizedOperandSegments]> {
+ let summary = "for internal conversion only";
+
+ let description = [{
+ Prior to lowering to LLVM IR dialect, a DeclareOp will
+ be converted to an extended DeclareOp.
+ }];
+
+ let arguments = (ins
+ AnyRefOrBox:$memref,
+ Variadic<AnyIntegerType>:$shape,
+ Variadic<AnyIntegerType>:$shift,
+ Variadic<AnyIntegerType>:$typeparams,
+ Optional<fir_DummyScopeType>:$dummy_scope,
+ Builtin_StringAttr:$uniq_name
+ );
+ let results = (outs AnyRefOrBox);
+
+ let assemblyFormat = [{
+ $memref (`(` $shape^ `)`)? (`origin` $shift^)? (`typeparams` $typeparams^)?
+ (`dummy_scope` $dummy_scope^)?
+ attr-dict `:` functional-type(operands, results)
+ }];
+
+ let extraClassDeclaration = [{
+ // Shape is optional, but if it exists, it will be at offset 1.
+ unsigned shapeOffset() { return 1; }
+ unsigned shiftOffset() { return shapeOffset() + getShape().size(); }
+ }];
+}
+
#endif
diff --git a/flang/include/flang/Optimizer/CodeGen/CGPasses.td b/flang/include/flang/Optimizer/CodeGen/CGPasses.td
index f524fb4237344..565920e55e6a8 100644
--- a/flang/include/flang/Optimizer/CodeGen/CGPasses.td
+++ b/flang/include/flang/Optimizer/CodeGen/CGPasses.td
@@ -47,6 +47,10 @@ def CodeGenRewrite : Pass<"cg-rewrite", "mlir::ModuleOp"> {
let dependentDialects = [
"fir::FIROpsDialect", "fir::FIRCodeGenDialect"
];
+ let options = [
+ Option<"preserveDeclare", "preserve-declare", "bool", /*default=*/"false",
+ "Preserve DeclareOp during pre codegen re-write.">
+ ];
let statistics = [
Statistic<"numDCE", "num-dce'd", "Number of operations eliminated">
];
diff --git a/flang/include/flang/Optimizer/CodeGen/CodeGen.h b/flang/include/flang/Optimizer/CodeGen/CodeGen.h
index 26097dabf56c4..4d2b191b46d08 100644
--- a/flang/include/flang/Optimizer/CodeGen/CodeGen.h
+++ b/flang/include/flang/Optimizer/CodeGen/CodeGen.h
@@ -30,7 +30,8 @@ struct NameUniquer;
/// Prerequiste pass for code gen. Perform intermediate rewrites to perform
/// the code gen (to LLVM-IR dialect) conversion.
-std::unique_ptr<mlir::Pass> createFirCodeGenRewritePass();
+std::unique_ptr<mlir::Pass> createFirCodeGenRewritePass(
+ CodeGenRewriteOptions Options = CodeGenRewriteOptions{});
/// FirTargetRewritePass options.
struct TargetRewriteOptions {
@@ -88,7 +89,8 @@ void populateFIRToLLVMConversionPatterns(fir::LLVMTypeConverter &converter,
fir::FIRToLLVMPassOptions &options);
/// Populate the pattern set with the PreCGRewrite patterns.
-void populatePreCGRewritePatterns(mlir::RewritePatternSet &patterns);
+void populatePreCGRewritePatterns(mlir::RewritePatternSet &patterns,
+ bool preserveDeclare);
// declarative passes
#define GEN_PASS_REGISTRATION
diff --git a/flang/include/flang/Tools/CLOptions.inc b/flang/include/flang/Tools/CLOptions.inc
index cc3431d5b71d2..761315e0abc81 100644
--- a/flang/include/flang/Tools/CLOptions.inc
+++ b/flang/include/flang/Tools/CLOptions.inc
@@ -169,9 +169,11 @@ inline void addMemoryAllocationOpt(mlir::PassManager &pm) {
}
#if !defined(FLANG_EXCLUDE_CODEGEN)
-inline void addCodeGenRewritePass(mlir::PassManager &pm) {
- addPassConditionally(
- pm, disableCodeGenRewrite, fir::createFirCodeGenRewritePass);
+inline void addCodeGenRewritePass(mlir::PassManager &pm, bool preserveDeclare) {
+ fir::CodeGenRewriteOptions options;
+ options.preserveDeclare = preserveDeclare;
+ addPassConditionally(pm, disableCodeGenRewrite,
+ [&]() { return fir::createFirCodeGenRewritePass(options); });
}
inline void addTargetRewritePass(mlir::PassManager &pm) {
@@ -353,7 +355,8 @@ inline void createDefaultFIRCodeGenPassPipeline(mlir::PassManager &pm,
MLIRToLLVMPassPipelineConfig config, llvm::StringRef inputFilename = {}) {
fir::addBoxedProcedurePass(pm);
addNestedPassToAllTopLevelOperations(pm, fir::createAbstractResultOpt);
- fir::addCodeGenRewritePass(pm);
+ fir::addCodeGenRewritePass(
+ pm, (config.DebugInfo != llvm::codegenoptions::NoDebugInfo));
fir::addTargetRewritePass(pm);
fir::addExternalNameConversionPass(pm, config.Underscoring);
fir::createDebugPasses(pm, config.DebugInfo, config.OptLevel, inputFilename);
diff --git a/flang/lib/Optimizer/CodeGen/CGOps.cpp b/flang/lib/Optimizer/CodeGen/CGOps.cpp
index 44d07d26dd2b6..6b8ba74525556 100644
--- a/flang/lib/Optimizer/CodeGen/CGOps.cpp
+++ b/flang/lib/Optimizer/CodeGen/CGOps.cpp
@@ -10,7 +10,7 @@
//
//===----------------------------------------------------------------------===//
-#include "CGOps.h"
+#include "flang/Optimizer/CodeGen/CGOps.h"
#include "flang/Optimizer/Dialect/FIRDialect.h"
#include "flang/Optimizer/Dialect/FIROps.h"
#include "flang/Optimizer/Dialect/FIRType.h"
diff --git a/flang/lib/Optimizer/CodeGen/CodeGen.cpp b/flang/lib/Optimizer/CodeGen/CodeGen.cpp
index 21154902d23f8..72172f63888e1 100644
--- a/flang/lib/Optimizer/CodeGen/CodeGen.cpp
+++ b/flang/lib/Optimizer/CodeGen/CodeGen.cpp
@@ -12,7 +12,7 @@
#include "flang/Optimizer/CodeGen/CodeGen.h"
-#include "CGOps.h"
+#include "flang/Optimizer/CodeGen/CGOps.h"
#include "flang/Optimizer/CodeGen/CodeGenOpenMP.h"
#include "flang/Optimizer/CodeGen/FIROpPatterns.h"
#include "flang/Optimizer/CodeGen/TypeConverter.h"
@@ -170,6 +170,28 @@ genAllocationScaleSize(OP op, mlir::Type ity,
return nullptr;
}
+namespace {
+struct DeclareOpConversion : public fir::FIROpConversion<fir::cg::XDeclareOp> {
+public:
+ using FIROpConversion::FIROpConversion;
+ mlir::LogicalResult
+ matchAndRewrite(fir::cg::XDeclareOp declareOp, OpAdaptor adaptor,
+ mlir::ConversionPatternRewriter &rewriter) const override {
+ auto memRef = adaptor.getOperands()[0];
+ if (auto fusedLoc = mlir::dyn_cast<mlir::FusedLoc>(declareOp.getLoc())) {
+ if (auto varAttr =
+ mlir::dyn_cast_or_null<mlir::LLVM::DILocalVariableAttr>(
+ fusedLoc.getMetadata())) {
+ rewriter.create<mlir::LLVM::DbgDeclareOp>(memRef.getLoc(), memRef,
+ varAttr, nullptr);
+ }
+ }
+ rewriter.replaceOp(declareOp, memRef);
+ return mlir::success();
+ }
+};
+} // namespace
+
namespace {
/// convert to LLVM IR dialect `alloca`
struct AllocaOpConversion : public fir::FIROpConversion<fir::AllocaOp> {
@@ -3714,19 +3736,19 @@ void fir::populateFIRToLLVMConversionPatterns(
BoxOffsetOpConversion, BoxProcHostOpConversion, BoxRankOpConversion,
BoxTypeCodeOpConversion, BoxTypeDescOpConversion, CallOpConversion,
CmpcOpConversion, ConstcOpConversion, ConvertOpConversion,
- CoordinateOpConversion, DTEntryOpConversion, DivcOpConversion,
- EmboxOpConversion, EmboxCharOpConversion, EmboxProcOpConversion,
- ExtractValueOpConversion, FieldIndexOpConversion, FirEndOpConversion,
- FreeMemOpConversion, GlobalLenOpConversion, GlobalOpConversion,
- HasValueOpConversion, InsertOnRangeOpConversion, InsertValueOpConversion,
- IsPresentOpConversion, LenParamIndexOpConversion, LoadOpConversion,
- MulcOpConversion, NegcOpConversion, NoReassocOpConversion,
- SelectCaseOpConversion, SelectOpConversion, SelectRankOpConversion,
- SelectTypeOpConversion, ShapeOpConversion, ShapeShiftOpConversion,
- ShiftOpConversion, SliceOpConversion, StoreOpConversion,
- StringLitOpConversion, SubcOpConversion, TypeDescOpConversion,
- TypeInfoOpConversion, UnboxCharOpConversion, UnboxProcOpConversion,
- UndefOpConversion, UnreachableOpConversion,
+ CoordinateOpConversion, DTEntryOpConversion, DeclareOpConversion,
+ DivcOpConversion, EmboxOpConversion, EmboxCharOpConversion,
+ EmboxProcOpConversion, ExtractValueOpConversion, FieldIndexOpConversion,
+ FirEndOpConversion, FreeMemOpConversion, GlobalLenOpConversion,
+ GlobalOpConversion, HasValueOpConversion, InsertOnRangeOpConversion,
+ InsertValueOpConversion, IsPresentOpConversion, LenParamIndexOpConversion,
+ LoadOpConversion, MulcOpConversion, NegcOpConversion,
+ NoReassocOpConversion, SelectCaseOpConversion, SelectOpConversion,
+ SelectRankOpConversion, SelectTypeOpConversion, ShapeOpConversion,
+ ShapeShiftOpConversion, ShiftOpConversion, SliceOpConversion,
+ StoreOpConversion, StringLitOpConversion, SubcOpConversion,
+ TypeDescOpConversion, TypeInfoOpConversion, UnboxCharOpConversion,
+ UnboxProcOpConversion, UndefOpConversion, UnreachableOpConversion,
UnrealizedConversionCastOpConversion, XArrayCoorOpConversion,
XEmboxOpConversion, XReboxOpConversion, ZeroOpConversion>(converter,
options);
diff --git a/flang/lib/Optimizer/CodeGen/PreCGRewrite.cpp b/flang/lib/Optimizer/CodeGen/PreCGRewrite.cpp
index 5bd3ec8d18450..c54a7457db761 100644
--- a/flang/lib/Optimizer/CodeGen/PreCGRewrite.cpp
+++ b/flang/lib/Optimizer/CodeGen/PreCGRewrite.cpp
@@ -12,8 +12,8 @@
#include "flang/Optimizer/CodeGen/CodeGen.h"
-#include "CGOps.h"
#include "flang/Optimizer/Builder/Todo.h" // remove when TODO's are done
+#include "flang/Optimizer/CodeGen/CGOps.h"
#include "flang/Optimizer/Dialect/FIRDialect.h"
#include "flang/Optimizer/Dialect/FIROps.h"
#include "flang/Optimizer/Dialect/FIRType.h"
@@ -270,13 +270,43 @@ class ArrayCoorConversion : public mlir::OpRewritePattern<fir::ArrayCoorOp> {
};
class DeclareOpConversion : public mlir::OpRewritePattern<fir::DeclareOp> {
+ bool preserveDeclare;
+
public:
using OpRewritePattern::OpRewritePattern;
+ DeclareOpConversion(mlir::MLIRContext *ctx, bool preserveDecl)
+ : OpRewritePattern(ctx), preserveDeclare(preserveDecl) {}
mlir::LogicalResult
matchAndRewrite(fir::DeclareOp declareOp,
mlir::PatternRewriter &rewriter) const override {
- rewriter.replaceOp(declareOp, declareOp.getMemref());
+ if (!preserveDeclare) {
+ rewriter.replaceOp(declareOp, declareOp.getMemref());
+ return mlir::success();
+ }
+ auto loc = declareOp.getLoc();
+ llvm::SmallVector<mlir::Value> shapeOpers;
+ llvm::SmallVector<mlir::Value> shiftOpers;
+ if (auto shapeVal = declareOp.getShape()) {
+ if (auto shapeOp = mlir::dyn_cast<fir::ShapeOp>(shapeVal.getDefiningOp()))
+ populateShape(shapeOpers, shapeOp);
+ else if (auto shiftOp =
+ mlir::dyn_cast<fir::ShapeShiftOp>(shapeVal.getDefiningOp()))
+ populateShapeAndShift(shapeOpers, shiftOpers, shiftOp);
+ else if (auto shiftOp =
+ mlir::dyn_cast<fir::ShiftOp>(shapeVal.getDefiningOp()))
+ populateShift(shiftOpers, shiftOp);
+ else
+ return mlir::failure();
+ }
+ // FIXME: Add FortranAttrs and CudaAttrs
+ auto xDeclOp = rewriter.create<fir::cg::XDeclareOp>(
+ loc, declareOp.getType(), declareOp.getMemref(), shapeOpers, shiftOpers,
+ declareOp.getTypeparams(), declareOp.getDummyScope(),
+ declareOp.getUniqName());
+ LLVM_DEBUG(llvm::dbgs()
+ << "rewriting " << declareOp << " to " << xDeclOp << '\n');
+ rewriter.replaceOp(declareOp, xDeclOp.getOperation()->getResults());
return mlir::success();
}
};
@@ -297,6 +327,7 @@ class DummyScopeOpConversion
class CodeGenRewrite : public fir::impl::CodeGenRewriteBase<CodeGenRewrite> {
public:
+ CodeGenRewrite(fir::CodeGenRewriteOptions opts) : Base(opts) {}
void runOnOperation() override final {
mlir::ModuleOp mod = getOperation();
@@ -314,7 +345,7 @@ class CodeGenRewrite : public fir::impl::CodeGenRewriteBase<CodeGenRewrite> {
mlir::cast<fir::BaseBoxType>(embox.getType()).getEleTy()));
});
mlir::RewritePatternSet patterns(&context);
- fir::populatePreCGRewritePatterns(patterns);
+ fir::populatePreCGRewritePatterns(patterns, preserveDeclare);
if (mlir::failed(
mlir::applyPartialConversion(mod, target, std::move(patterns)))) {
mlir::emitError(mlir::UnknownLoc::get(&context),
@@ -330,12 +361,14 @@ class CodeGenRewrite : public fir::impl::CodeGenRewriteBase<CodeGenRewrite> {
} // namespace
-std::unique_ptr<mlir::Pass> fir::createFirCodeGenRewritePass() {
- return std::make_unique<CodeGenRewrite>();
+std::unique_ptr<mlir::Pass>
+fir::createFirCodeGenRewritePass(fir::CodeGenRewriteOptions Options) {
+ return std::make_unique<CodeGenRewrite>(Options);
}
-void fir::populatePreCGRewritePatterns(mlir::RewritePatternSet &patterns) {
+void fir::populatePreCGRewritePatterns(mlir::RewritePatternSet &patterns,
+ bool preserveDeclare) {
patterns.insert<EmboxConversion, ArrayCoorConversion, ReboxConversion,
- DeclareOpConversion, DummyScopeOpConversion>(
- patterns.getContext());
+ DummyScopeOpConversion>(patterns.getContext());
+ patterns.add<DeclareOpConversion>(patterns.getContext(), preserveDeclare);
}
diff --git a/flang/lib/Optimizer/Transforms/AddDebugInfo.cpp b/flang/lib/Optimizer/Transforms/AddDebugInfo.cpp
index 908c8fc96f633..cfad366cb5cb5 100644
--- a/flang/lib/Optimizer/Transforms/AddDebugInfo.cpp
+++ b/flang/lib/Optimizer/Transforms/AddDebugInfo.cpp
@@ -15,6 +15,7 @@
#include "flang/Common/Version.h"
#include "flang/Optimizer/Builder/FIRBuilder.h"
#include "flang/Optimizer/Builder/Todo.h"
+#include "flang/Optimizer/CodeGen/CGOps.h"
#include "flang/Optimizer/Dialect/FIRDialect.h"
#include "flang/Optimizer/Dialect/FIROps.h"
#include "flang/Optimizer/Dialect/FIRType.h"
@@ -45,13 +46,59 @@ namespace fir {
namespace {
class AddDebugInfoPass : public fir::impl::AddDebugInfoBase<AddDebugInfoPass> {
+ void handleDeclareOp(fir::cg::XDeclareOp declOp,
+ mlir::LLVM::DIFileAttr fileAttr,
+ mlir::LLVM::DIScopeAttr scopeAttr,
+ fir::DebugTypeGenerator &typeGen);
+
public:
AddDebugInfoPass(fir::AddDebugInfoOptions options) : Base(options) {}
void runOnOperation() override;
};
+static uint32_t getLineFromLoc(mlir::Location loc) {
+ uint32_t line = 1;
+ if (auto fileLoc = mlir::dyn_cast<mlir::FileLineColLoc>(loc))
+ line = fileLoc.getLine();
+ return line;
+}
+
} // namespace
+void AddDebugInfoPass::handleDeclareOp(fir::cg::XDeclareOp declOp,
+ mlir::LLVM::DIFileAttr fileAttr,
+ mlir::LLVM::DIScopeAttr scopeAttr,
+ fir::DebugTypeGenerator &typeGen) {
+ mlir::MLIRContext *context = &getContext();
+ mlir::OpBuilder builder(context);
+ auto result = fir::NameUniquer::deconstruct(declOp.getUniqName());
+
+ if (result.first != fir::NameUniquer::NameKind::VARIABLE)
+ return;
+
+ // Only accept local variables.
+ if (result.second.procs.empty())
+ return;
+
+ // FIXME: There may be cases where an argument is processed a bit before
+ // DeclareOp is generated. In that case, DeclareOp may point to an
+ // intermediate op and not to BlockArgument. We need to find those cases and
+ // walk the chain to get to the actual argument.
+
+ unsigned argNo = 0;
+ if (auto Arg = llvm::dyn_cast<mlir::BlockArgument>(declOp.getMemref()))
+ argNo = Arg.getArgNumber() + 1;
+
+ auto tyAttr = typeGen.convertType(fir::unwrapRefType(declOp.getType()),
+ fileAttr, scopeAttr, declOp.getLoc());
+
+ auto localVarAttr = mlir::LLVM::DILocalVariableAttr::get(
+ context, scopeAttr, mlir::StringAttr::get(context, result.second.name),
+ fileAttr, getLineFromLoc(declOp.getLoc()), argNo, /* alignInBits*/ 0,
+ tyAttr);
+ declOp->setLoc(builder.getFusedLoc({declOp->getLoc()}, localVarAttr));
+}
+
void AddDebugInfoPass::runOnOperation() {
mlir::ModuleOp module = getOperation();
mlir::MLIRContext *context = &getContext();
@@ -144,14 +191,15 @@ void AddDebugInfoPass::runOnOperation() {
subprogramFlags =
subprogramFlags | mlir::LLVM::DISubprogramFlags::Definition;
}
- unsigned line = 1;
- if (auto funcLoc = mlir::dyn_cast<mlir::FileLineColLoc>(l))
- line = funcLoc.getLine();
-
+ unsigned line = getLineFromLoc(l);
auto spAttr = mlir::LLVM::DISubprogramAttr::get(
context, id, compilationUnit, fileAttr, funcName, fullName,
funcFileAttr, line, line, subprogramFlags, subTypeAttr);
funcOp->setLoc(builder.getFusedLoc({funcOp->getLoc()}, spAttr));
+
+ funcOp.walk([&](fir::cg::XDeclareOp declOp) {
+ handleDeclareOp(declOp, fileAttr, spAttr, typeGen);
+ });
});
}
diff --git a/flang/lib/Optimizer/Transforms/DebugTypeGenerator.cpp b/flang/lib/Optimizer/Transforms/DebugTypeGenerator.cpp
index e5b4050dfb242..64c6547e06e0f 100644
--- a/flang/lib/Optimizer/Transforms/DebugTypeGenerator.cpp
+++ b/flang/lib/Optimizer/Transforms/DebugTypeGenerator.cpp
@@ -24,11 +24,6 @@ DebugTypeGenerator::DebugTypeGenerator(mlir::ModuleOp m)
LLVM_DEBUG(llvm::dbgs() << "DITypeAttr generator\n");
}
-static mlir::LLVM::DITypeAttr genPlaceholderType(mlir::MLIRContext *context) {
- return mlir::LLVM::DIBasicTypeAttr::get(
- context, llvm::dwarf::DW_TAG_base_type, "void", 32, 1);
-}
-
static mlir::LLVM::DITypeAttr genBasicType(mlir::MLIRContext *context,
mlir::StringAttr name,
unsigned bitSize,
@@ -37,6 +32,11 @@ static mlir::LLVM::DITypeAttr genBasicType(mlir::MLIRContext *context,
context, llvm::dwarf::DW_TAG_base_type, name, bitSize, decoding);
}
+static mlir::LLVM::DITypeAttr genPlaceholderType(mlir::MLIRContext *context) {
+ return genBasicType(context, mlir::StringAttr::get(context, "integer"), 32,
+ llvm::dwarf::DW_ATE_signed);
+}
+
mlir::LLVM::DITypeAttr
DebugTypeGenerator::convertType(mlir::Type Ty, mlir::LLVM::DIFileAttr fileAttr,
mlir::LLVM::DIScopeAttr scope,
diff --git a/flang/test/Fir/declare-codegen.fir b/flang/test/Fir/declare-codegen.fir
index 9d68d3b2f9d4d..c5879facb1572 100644
--- a/flang/test/Fir/declare-codegen.fir
+++ b/flang/test/Fir/declare-codegen.fir
@@ -1,5 +1,7 @@
// Test rewrite of fir.declare. The result is replaced by the memref operand.
-// RUN: fir-opt --cg-rewrite %s -o - | FileCheck %s
+// RUN: fir-opt --cg-rewrite="preserve-declare=true" %s -o - | FileCheck %s --check-prefixes DECL
+// RUN: fir-opt --cg-rewrite="preserve-declare=false" %s -o - | FileCheck %s --check-prefixes NODECL
+// RUN: fir-opt --cg-rewrite %s -o - | FileCheck %s --check-prefixes NODECL
func.func @test(%arg0: !fir.ref<!fir.array<12x23xi32>>) {
@@ -15,9 +17,14 @@ func.func @test(%arg0: !fir.ref<!fir.array<12x23xi32>>) {
func.func private @bar(%arg0: !fir.ref<!fir.array<12x23xi32>>)
-// CHECK-LABEL: func.func @test(
-// CHECK-SAME: %[[arg0:.*]]: !fir.ref<!fir.array<12x23xi32>>) {
-// CHECK-NEXT: fir.call @bar(%[[arg0]]) : (!fir.ref<!fir.array<12x23xi32>>) -> ()
+// NODECL-LABEL: func.func @test(
+// NODECL-SAME: %[[arg0:.*]]: !fir.ref<!fir.array<12x23xi32>>) {
+// NODECL-NEXT: fir.call @bar(%[[arg0]]) : (!fir.ref<!fir.array<12x23xi32>>) -> ()
+
+// DECL-LABEL: func.func @test(
+// DECL-SAME: %[[arg0:.*]]: !fir.ref<!fir.array<12x23xi32>>) {
+// DECL: fircg.ext_declare
+
func.func @useless_shape_with_duplicate_extent_operand(%arg0: !fir.ref<!fir.array<3x3xf32>>) {
%c3 = arith.constant 3 : index
@@ -26,5 +33,8 @@ func.func @useless_shape_with_duplicate_extent_operand(%arg0: !fir.ref<!fir.arra
return
}
-// CHECK-LABEL: func.func @useless_shape_with_duplicate_extent_operand(
-// CHECK-NEXT: return
+// NODECL-LABEL: func.func @useless_shape_with_duplicate_extent_operand(
+// NODECL-NEXT: return
+
+// DECL-LABEL: func.func @useless_shape_with_duplicate_extent_operand(
+// DECL: fircg.ext_declare
diff --git a/flang/test/Fir/dummy-scope-codegen.fir b/flang/test/Fir/dummy-scope-codegen.fir
index caef3c1b25783..2e5c091552a7a 100644
--- a/flang/test/Fir/dummy-scope-codegen.fir
+++ b/flang/test/Fir/dummy-scope-codegen.fir
@@ -1,9 +1,14 @@
-// RUN: fir-opt --cg-rewrite %s -o - | FileCheck %s
+// RUN: fir-opt --cg-rewrite="preserve-declare=true" %s -o - | FileCheck %s --check-prefixes DECL
+// RUN: fir-opt --cg-rewrite="preserve-declare=false" %s -o - | FileCheck %s --check-prefixes NODECL
+// RUN: fir-opt --cg-rewrite %s -o - | FileCheck %s --check-prefixes NODECL
func.func @dummy_scope(%arg0: !fir.ref<f32>) {
%scope = fir.dummy_scope : !fir.dscope
%0 = fir.declare %arg0 dummy_scope %scope {uniq_name = "x"} : (!fir.ref<f32>, !fir.dscope) -> !fir.ref<f32>
return
}
-// CHECK-LABEL: func.func @dummy_scope(
-// CHECK-NEXT: return
+// DECL-LABEL: func.func @dummy_scope(
+// DECL: fircg.ext_declare
+
+// NODECL-LABEL: func.func @dummy_scope(
+// NODECL-NEXT: return
\ No newline at end of file
diff --git a/flang/test/Transforms/debug-local-var-2.f90 b/flang/test/Transforms/debug-local-var-2.f90
new file mode 100644
index 0000000000000..15b9b148492e1
--- /dev/null
+++ b/flang/test/Transforms/debug-local-var-2.f90
@@ -0,0 +1,91 @@
+! RUN: %flang_fc1 -emit-llvm -debug-info-kind=standalone %s -o - | FileCheck %s
+
+! This tests checks the debug information for local variables in llvm IR.
+
+! CHECK-LABEL: define void @_QQmain
+! CHECK-DAG: %[[AL11:.*]] = alloca i32
+! CHECK-DAG: %[[AL12:.*]] = alloca i64
+! CHECK-DAG: %[[AL13:.*]] = alloca i8
+! CHECK-DAG: %[[AL14:.*]] = alloca i32
+! CHECK-DAG: %[[AL15:.*]] = alloca float
+! CHECK-DAG: %[[AL16:.*]] = alloca double
+! CHECK-DAG: call void @llvm.dbg.declare(metadata ptr %[[AL11]], metadata ![[I4:.*]], metadata !DIExpression())
+! CHECK-DAG: call void @llvm.dbg.declare(metadata ptr %[[AL12]], metadata ![[I8:.*]], metadata !DIExpression())
+! CHECK-DAG: call void @llvm.dbg.declare(metadata ptr %[[AL13]], metadata ![[L1:.*]], metadata !DIExpression())
+! CHECK-DAG: call void @llvm.dbg.declare(metadata ptr %[[AL14]], metadata ![[L4:.*]], metadata !DIExpression())
+! CHECK-DAG: call void @llvm.dbg.declare(metadata ptr %[[AL15]], metadata ![[R4:.*]], metadata !DIExpression())
+! CHECK-DAG: call void @llvm.dbg.declare(metadata ptr %[[AL16]], metadata ![[R8:.*]], metadata !DIExpression())
+! CHECK-LABEL: }
+
+! CHECK-LABEL: define {{.*}}i64 @_QFPfn1
+! CHECK-SAME: (ptr %[[ARG1:.*]], ptr %[[ARG2:.*]], ptr %[[ARG3:.*]])
+! CHECK-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[ARG1]], metadata ![[A1:.*]], metadata !DIExpression())
+! CHECK-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[ARG2]], metadata ![[B1:.*]], metadata !DIExpression())
+! CHECK-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[ARG3]], metadata ![[C1:.*]], metadata !DIExpression())
+! CHECK-DAG: %[[AL2:.*]] = alloca i64
+! CHECK-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[AL2]], metadata ![[RES1:.*]], metadata !DIExpression())
+! CHECK-LABEL: }
+
+! CHECK-LABEL: define {{.*}}i32 @_QFPfn2
+! CHECK-SAME: (ptr %[[FN2ARG1:.*]], ptr %[[FN2ARG2:.*]], ptr %[[FN2ARG3:.*]])
+! CHECK-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[FN2ARG1]], metadata ![[A2:.*]], metadata !DIExpression())
+! CHECK-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[FN2ARG2]], metadata ![[B2:.*]], metadata !DIExpression())
+! CHECK-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[FN2ARG3]], metadata ![[C2:.*]], metadata !DIExpression())
+! CHECK-DAG: %[[AL3:.*]] = alloca i32
+! CHECK-DAG: tail call void @llvm.dbg.declare(metadata ptr %[[AL3]], metadata ![[RES2:.*]], metadata !DIExpression())
+! CHECK-LABEL: }
+
+program mn
+! CHECK-DAG: ![[MAIN:.*]] = distinct !DISubprogram(name: "_QQmain", {{.*}})
+
+! CHECK-DAG: ![[TYI32:.*]] = !DIBasicType(name: "integer", size: 32, encoding: DW_ATE_signed)
+! CHECK-DAG: ![[TYI64:.*]] = !DIBasicType(name: "integer", size: 64, encoding: DW_ATE_signed)
+! CHECK-DAG: ![[TYL8:.*]] = !DIBasicType(name: "logical", size: 8, encoding: DW_ATE_boolean)
+! CHECK-DAG: ![[TYL32:.*]] = !DIBasicType(name: "logical", size: 32, encoding: DW_ATE_boolean)
+! CHECK-DAG: ![[TYR32:.*]] = !DIBasicType(name: "real", size: 32, encoding: DW_ATE_float)
+! CHECK-DAG: ![[TYR64:.*]] = !DIBasicType(name: "real", size: 64, encoding: DW_ATE_float)
+
+! CHECK-DAG: ![[I4]] = !DILocalVariable(name: "i4", scope: ![[MAIN]], file: !{{.*}}, line: [[@LINE+6]], type: ![[TYI32]])
+! CHECK-DAG: ![[I8]] = !DILocalVariable(name: "i8", scope: ![[MAIN]], file: !{{.*}}, line: [[@LINE+6]], type: ![[TYI64]])
+! CHECK-DAG: ![[R4]] = !DILocalVariable(name: "r4", scope: ![[MAIN]], file: !{{.*}}, line: [[@LINE+6]], type: ![[TYR32]])
+! CHECK-DAG: ![[R8]] = !DILocalVariable(name: "r8", scope: ![[MAIN]], file: !{{.*}}, line: [[@LINE+6]], type: ![[TYR64]])
+! CHECK-DAG: ![[L1]] = !DILocalVariable(name: "l1", scope: ![[MAIN]], file: !{{.*}}, line: [[@LINE+6]], type: ![[TYL8]])
+! CHECK-DAG: ![[L4]] = !DILocalVariable(name: "l4", scope: ![[MAIN]], file: !{{.*}}, line: [[@LINE+6]], type: ![[TYL32]])
+ integer(kind=4) :: i4
+ integer(kind=8) :: i8
+ real(kind=4) :: r4
+ real(kind=8) :: r8
+ logical(kind=1) :: l1
+ logical(kind=4) :: l4
+
+ i8 = fn1(i4, r8, l1)
+ i4 = fn2(i8, r4, l4)
+contains
+! CHECK-DAG: ![[FN1:.*]] = distinct !DISubprogram(name: "fn1", {{.*}})
+! CHECK-DAG: ![[A1]] = !DILocalVariable(name: "a1", arg: 1, scope: ![[FN1]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYI32]])
+! CHECK-DAG: ![[B1]] = !DILocalVariable(name: "b1", arg: 2, scope: ![[FN1]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYR64]])
+! CHECK-DAG: ![[C1]] = !DILocalVariable(name: "c1", arg: 3, scope: ![[FN1]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYL8]])
+! CHECK-DAG: ![[RES1]] = !DILocalVariable(name: "res1", scope: ![[FN1]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYI64]])
+ function fn1(a1, b1, c1) result (res1)
+ integer(kind=4), intent(in) :: a1
+ real(kind=8), intent(in) :: b1
+ logical(kind=1), intent(in) :: c1
+ integer(kind=8) :: res1
+
+ res1 = a1 + b1
+ end function
+
+! CHECK-DAG: ![[FN2:.*]] = distinct !DISubprogram(name: "fn2", {{.*}})
+! CHECK-DAG: ![[A2]] = !DILocalVariable(name: "a2", arg: 1, scope: ![[FN2]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYI64]])
+! CHECK-DAG: ![[B2]] = !DILocalVariable(name: "b2", arg: 2, scope: ![[FN2]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYR32]])
+! CHECK-DAG: ![[C2]] = !DILocalVariable(name: "c2", arg: 3, scope: ![[FN2]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYL32]])
+! CHECK-DAG: ![[RES2]] = !DILocalVariable(name: "res2", scope: ![[FN2]], file: !{{.*}}, line: [[@LINE+5]], type: ![[TYI32]])
+ function fn2(a2, b2, c2) result (res2)
+ integer(kind=8), intent(in) :: a2
+ real(kind=4), intent(in) :: b2
+ logical(kind=4), intent(in) :: c2
+ integer(kind=4) :: res2
+
+ res2 = a2 + b2
+ end function
+end program
diff --git a/flang/test/Transforms/debug-local-var.f90 b/flang/test/Transforms/debug-local-var.f90
new file mode 100644
index 0000000000000..96dc111ad308e
--- /dev/null
+++ b/flang/test/Transforms/debug-local-var.f90
@@ -0,0 +1,54 @@
+! RUN: %flang_fc1 -emit-fir -debug-info-kind=standalone -mmlir --mlir-print-debuginfo %s -o - | \
+! RUN: fir-opt --cg-rewrite="preserve-declare=true" --mlir-print-debuginfo | fir-opt --add-debug-info --mlir-print-debuginfo | FileCheck %s
+
+! CHECK-DAG: #[[INT8:.*]] = #llvm.di_basic_type<tag = DW_TAG_base_type, name = "integer", sizeInBits = 64, encoding = DW_ATE_signed>
+! CHECK-DAG: #[[INT4:.*]] = #llvm.di_basic_type<tag = DW_TAG_base_type, name = "integer", sizeInBits = 32, encoding = DW_ATE_signed>
+! CHECK-DAG: #[[REAL8:.*]] = #llvm.di_basic_type<tag = DW_TAG_base_type, name = "real", sizeInBits = 64, encoding = DW_ATE_float>
+! CHECK-DAG: #[[LOG1:.*]] = #llvm.di_basic_type<tag = DW_TAG_base_type, name = "logical", sizeInBits = 8, encoding = DW_ATE_boolean>
+! CHECK-DAG: #[[REAL4:.*]] = #llvm.di_basic_type<tag = DW_TAG_base_type, name = "real", sizeInBits = 32, encoding = DW_ATE_float>
+! CHECK-DAG: #[[LOG4:.*]] = #llvm.di_basic_type<tag = DW_TAG_base_type, name = "logical", sizeInBits = 32, encoding = DW_ATE_boolean>
+! CHECK-DAG: #[[MAIN:.*]] = #llvm.di_subprogram<{{.*}}name = "_QQmain"{{.*}}>
+! CHECK-DAG: #[[FN1:.*]] = #llvm.di_subprogram<{{.*}}name = "fn1"{{.*}}>
+! CHECK-DAG: #[[FN2:.*]] = #llvm.di_subprogram<{{.*}}name = "fn2"{{.*}}>
+
+program mn
+! CHECK-DAG: #[[I4:.*]] = #llvm.di_local_variable<scope = #[[MAIN]], name = "i4", file = #{{.*}}, line = [[@LINE+6]], type = #[[INT4]]>
+! CHECK-DAG: #[[I8:.*]] = #llvm.di_local_variable<scope = #[[MAIN]], name = "i8", file = #{{.*}}, line = [[@LINE+6]], type = #[[INT8]]>
+! CHECK-DAG: #[[R4:.*]] = #llvm.di_local_variable<scope = #[[MAIN]], name = "r4", file = #{{.*}}, line = [[@LINE+6]], type = #[[REAL4]]>
+! CHECK-DAG: #[[R8:.*]] = #llvm.di_local_variable<scope = #[[MAIN]], name = "r8", file = #{{.*}}, line = [[@LINE+6]], type = #[[REAL8]]>
+! CHECK-DAG: #[[L1:.*]] = #llvm.di_local_variable<scope = #[[MAIN]], name = "l1", file = #{{.*}}, line = [[@LINE+6]], type = #[[LOG1]]>
+! CHECK-DAG: #[[L4:.*]] = #llvm.di_local_variable<scope = #[[MAIN]], name = "l4", file = #{{.*}}, line = [[@LINE+6]], type = #[[LOG4]]>
+ integer(kind=4) :: i4
+ integer(kind=8) :: i8
+ real(kind=4) :: r4
+ real(kind=8) :: r8
+ logical(kind=1) :: l1
+ logical(kind=4) :: l4
+ i8 = fn1(i4, r8, l1)
+ i4 = fn2(i8, r4, l4)
+contains
+ function fn1(a1, b1, c1) result (res1)
+! CHECK-DAG: #[[A1:.*]] = #llvm.di_local_variable<scope = #[[FN1]], name = "a1", file = #{{.*}}, line = [[@LINE+4]], arg = 1, type = #[[INT4]]>
+! CHECK-DAG: #[[B1:.*]] = #llvm.di_local_variable<scope = #[[FN1]], name = "b1", file = #{{.*}}, line = [[@LINE+4]], arg = 2, type = #[[REAL8]]>
+! CHECK-DAG: #[[C1:.*]] = #llvm.di_local_variable<scope = #[[FN1]], name = "c1", file = #{{.*}}, line = [[@LINE+4]], arg = 3, type = #[[LOG1]]>
+! CHECK-DAG: #[[RES1:.*]] = #llvm.di_local_variable<scope = #[[FN1]], name = "res1", file = #{{.*}}, line = [[@LINE+4]], type = #[[INT8]]>
+ integer(kind=4), intent(in) :: a1
+ real(kind=8), intent(in) :: b1
+ logical(kind=1), intent(in) :: c1
+ integer(kind=8) :: res1
+ res1 = a1 + b1
+ end function
+
+ function fn2(a2, b2, c2) result (res2)
+ implicit none
+! CHECK-DAG: #[[A2:.*]] = #llvm.di_local_variable<scope = #[[FN2]], name = "a2", file = #{{.*}}, line = [[@LINE+4]], arg = 1, type = #[[INT8]]>
+! CHECK-DAG: #[[B2:.*]] = #llvm.di_local_variable<scope = #[[FN2]], name = "b2", file = #{{.*}}, line = [[@LINE+4]], arg = 2, type = #[[REAL4]]>
+! CHECK-DAG: #[[C2:.*]] = #llvm.di_local_variable<scope = #[[FN2]], name = "c2", file = #{{.*}}, line = [[@LINE+4]], arg = 3, type = #[[LOG4]]>
+! CHECK-DAG: #[[RES2:.*]] = #llvm.di_local_variable<scope = #[[FN2]], name = "res2", file = #{{.*}}, line = [[@LINE+4]], type = #[[INT4]]>
+ integer(kind=8), intent(in) :: a2
+ real(kind=4), intent(in) :: b2
+ logical(kind=4), intent(in) :: c2
+ integer(kind=4) :: res2
+ res2 = a2 + b2
+ end function
+end program
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