[Mlir-commits] [mlir] [mlir][gpu] Adding ELF section option to the gpu-module-to-binary pass (PR #119440)

Renaud Kauffmann llvmlistbot at llvm.org
Tue Dec 10 15:40:04 PST 2024


https://github.com/Renaud-K updated https://github.com/llvm/llvm-project/pull/119440

>From 13ba4b129117686fc407cdd6583437f9cb56b461 Mon Sep 17 00:00:00 2001
From: Renaud-K <rkauffmann at nvidia.com>
Date: Tue, 10 Dec 2024 11:48:45 -0800
Subject: [PATCH 1/3] Adding the ELF section to the NVVMTargetAttr, to
 propagate to the gpu.binary Op

---
 mlir/include/mlir/Dialect/GPU/Transforms/Passes.td   |  3 +++
 mlir/include/mlir/Dialect/LLVMIR/NVVMOps.td          |  6 ++++--
 mlir/lib/Dialect/GPU/Transforms/NVVMAttachTarget.cpp |  4 +++-
 mlir/lib/Dialect/LLVMIR/IR/NVVMDialect.cpp           |  4 ++--
 mlir/lib/Target/LLVM/NVVM/Target.cpp                 | 12 ++++++++++--
 mlir/test/Dialect/LLVMIR/attach-targets.mlir         |  3 +++
 6 files changed, 25 insertions(+), 7 deletions(-)

diff --git a/mlir/include/mlir/Dialect/GPU/Transforms/Passes.td b/mlir/include/mlir/Dialect/GPU/Transforms/Passes.td
index 4a9ddafdd177d2..784721d19d0ccd 100644
--- a/mlir/include/mlir/Dialect/GPU/Transforms/Passes.td
+++ b/mlir/include/mlir/Dialect/GPU/Transforms/Passes.td
@@ -139,6 +139,9 @@ def GpuNVVMAttachTarget: Pass<"nvvm-attach-target", ""> {
     Option<"ftzFlag", "ftz", "bool",
            /*default=*/"false",
            "Enable flush to zero for denormals.">,
+    Option<"elfSection", "section", "std::string",
+           /*default=*/"\"\"",
+           "ELF section where the module needs to be created.">,
     ListOption<"linkLibs", "l", "std::string",
            "Extra bitcode libraries paths to link to.">,
   ];
diff --git a/mlir/include/mlir/Dialect/LLVMIR/NVVMOps.td b/mlir/include/mlir/Dialect/LLVMIR/NVVMOps.td
index 296a3c305e5bf4..03c03d5f66b9af 100644
--- a/mlir/include/mlir/Dialect/LLVMIR/NVVMOps.td
+++ b/mlir/include/mlir/Dialect/LLVMIR/NVVMOps.td
@@ -2266,20 +2266,22 @@ def NVVM_TargettAttr : NVVM_Attr<"NVVMTarget", "target"> {
     StringRefParameter<"Target triple.", "\"nvptx64-nvidia-cuda\"">:$triple,
     StringRefParameter<"Target chip.", "\"sm_50\"">:$chip,
     StringRefParameter<"Target chip features.", "\"+ptx60\"">:$features,
+    OptionalParameter<"StringAttr", "ELF section.">:$section,
     OptionalParameter<"DictionaryAttr", "Target specific flags.">:$flags,
     OptionalParameter<"ArrayAttr", "Files to link to the LLVM module.">:$link
   );
   let assemblyFormat = [{
-    (`<` struct($O, $triple, $chip, $features, $flags, $link)^ `>`)?
+    (`<` struct($O, $triple, $chip, $features, $section, $flags, $link)^ `>`)?
   }];
   let builders = [
     AttrBuilder<(ins CArg<"int", "2">:$optLevel,
                      CArg<"StringRef", "\"nvptx64-nvidia-cuda\"">:$triple,
                      CArg<"StringRef", "\"sm_50\"">:$chip,
                      CArg<"StringRef", "\"+ptx60\"">:$features,
+                     CArg<"StringAttr", "nullptr">:$section,
                      CArg<"DictionaryAttr", "nullptr">:$targetFlags,
                      CArg<"ArrayAttr", "nullptr">:$linkFiles), [{
-      return Base::get($_ctxt, optLevel, triple, chip, features, targetFlags, linkFiles);
+      return Base::get($_ctxt, optLevel, triple, chip, features, section, targetFlags, linkFiles);
     }]>
   ];
   let skipDefaultBuilders = 1;
diff --git a/mlir/lib/Dialect/GPU/Transforms/NVVMAttachTarget.cpp b/mlir/lib/Dialect/GPU/Transforms/NVVMAttachTarget.cpp
index dd705cd3383121..5628361c6a843c 100644
--- a/mlir/lib/Dialect/GPU/Transforms/NVVMAttachTarget.cpp
+++ b/mlir/lib/Dialect/GPU/Transforms/NVVMAttachTarget.cpp
@@ -63,7 +63,9 @@ void NVVMAttachTarget::runOnOperation() {
   ArrayRef<std::string> libs(linkLibs);
   SmallVector<StringRef> filesToLink(libs);
   auto target = builder.getAttr<NVVMTargetAttr>(
-      optLevel, triple, chip, features, getFlags(builder),
+      optLevel, triple, chip, features,
+      elfSection.empty() ? nullptr : builder.getStringAttr(elfSection),
+      getFlags(builder),
       filesToLink.empty() ? nullptr : builder.getStrArrayAttr(filesToLink));
   llvm::Regex matcher(moduleMatcher);
   for (Region &region : getOperation()->getRegions())
diff --git a/mlir/lib/Dialect/LLVMIR/IR/NVVMDialect.cpp b/mlir/lib/Dialect/LLVMIR/IR/NVVMDialect.cpp
index ca04af0b060b4f..9d6d9d3cf66821 100644
--- a/mlir/lib/Dialect/LLVMIR/IR/NVVMDialect.cpp
+++ b/mlir/lib/Dialect/LLVMIR/IR/NVVMDialect.cpp
@@ -1185,8 +1185,8 @@ LogicalResult NVVMDialect::verifyRegionArgAttribute(Operation *op,
 LogicalResult
 NVVMTargetAttr::verify(function_ref<InFlightDiagnostic()> emitError,
                        int optLevel, StringRef triple, StringRef chip,
-                       StringRef features, DictionaryAttr flags,
-                       ArrayAttr files) {
+                       StringRef features, StringAttr elfSection,
+                       DictionaryAttr flags, ArrayAttr files) {
   if (optLevel < 0 || optLevel > 3) {
     emitError() << "The optimization level must be a number between 0 and 3.";
     return failure();
diff --git a/mlir/lib/Target/LLVM/NVVM/Target.cpp b/mlir/lib/Target/LLVM/NVVM/Target.cpp
index 3c92359915ded4..152d2dd6326666 100644
--- a/mlir/lib/Target/LLVM/NVVM/Target.cpp
+++ b/mlir/lib/Target/LLVM/NVVM/Target.cpp
@@ -664,9 +664,17 @@ NVVMTargetAttrImpl::createObject(Attribute attribute, Operation *module,
   gpu::CompilationTarget format = options.getCompilationTarget();
   DictionaryAttr objectProps;
   Builder builder(attribute.getContext());
+  SmallVector<NamedAttribute, 2> properties;
   if (format == gpu::CompilationTarget::Assembly)
-    objectProps = builder.getDictionaryAttr(
-        {builder.getNamedAttr("O", builder.getI32IntegerAttr(target.getO()))});
+    properties.push_back(
+        builder.getNamedAttr("O", builder.getI32IntegerAttr(target.getO())));
+
+  if (StringAttr section = target.getSection())
+    properties.push_back(builder.getNamedAttr("section", section));
+
+  if (!properties.empty())
+    objectProps = builder.getDictionaryAttr(properties);
+
   return builder.getAttr<gpu::ObjectAttr>(
       attribute, format,
       builder.getStringAttr(StringRef(object.data(), object.size())),
diff --git a/mlir/test/Dialect/LLVMIR/attach-targets.mlir b/mlir/test/Dialect/LLVMIR/attach-targets.mlir
index 83733db400798e..832e0443e720f7 100644
--- a/mlir/test/Dialect/LLVMIR/attach-targets.mlir
+++ b/mlir/test/Dialect/LLVMIR/attach-targets.mlir
@@ -1,13 +1,16 @@
 // RUN: mlir-opt %s --nvvm-attach-target='module=nvvm.* O=3 chip=sm_90' --rocdl-attach-target='module=rocdl.* O=3 chip=gfx90a' | FileCheck %s
 // RUN: mlir-opt %s --nvvm-attach-target='module=options.* O=1 chip=sm_70 fast=true ftz=true' --rocdl-attach-target='module=options.* l=file1.bc,file2.bc wave64=false finite-only=true' | FileCheck %s --check-prefix=CHECK_OPTS
+// RUN: mlir-opt %s --nvvm-attach-target='module=nvvm.* section=__fatbin' | FileCheck %s --check-prefix=CHECK_SECTION
 
 module attributes {gpu.container_module} {
 // Verify the target is appended.
 // CHECK: @nvvm_module_1 [#nvvm.target<O = 3, chip = "sm_90">] {
+// CHECK_SECTION: @nvvm_module_1 [#nvvm.target<section = "__fatbin">] 
 gpu.module @nvvm_module_1 {
 }
 // Verify the target is appended.
 // CHECK: @nvvm_module_2 [#nvvm.target<chip = "sm_60">, #nvvm.target<O = 3, chip = "sm_90">] {
+// CHECK_SECTION: gpu.module @nvvm_module_2 [#nvvm.target<chip = "sm_60">, #nvvm.target<section = "__fatbin">] 
 gpu.module @nvvm_module_2 [#nvvm.target<chip = "sm_60">] {
 }
 // Verify the target is not added multiple times.

>From bf0e3c00a7f9735b5ded9afcde75ea5b98e7efae Mon Sep 17 00:00:00 2001
From: Renaud-K <rkauffmann at nvidia.com>
Date: Tue, 10 Dec 2024 15:26:21 -0800
Subject: [PATCH 2/3] Adding ELF section option to the gpu-module-to-binary
 pass

---
 .../Dialect/GPU/IR/CompilationInterfaces.h    |  9 ++++++++-
 .../mlir/Dialect/GPU/Transforms/Passes.td     | 19 +++++++++----------
 mlir/lib/Dialect/GPU/IR/GPUDialect.cpp        | 18 ++++++++++++------
 .../Dialect/GPU/Transforms/ModuleToBinary.cpp |  4 ++--
 mlir/lib/Target/LLVM/NVVM/Target.cpp          |  5 +++--
 .../Dialect/GPU/module-to-binary-nvvm.mlir    |  3 +++
 .../Target/LLVM/SerializeNVVMTarget.cpp       | 12 ++++++------
 .../Target/LLVM/SerializeROCDLTarget.cpp      | 12 ++++++------
 .../Target/LLVM/SerializeToLLVMBitcode.cpp    | 12 ++++++------
 9 files changed, 55 insertions(+), 39 deletions(-)

diff --git a/mlir/include/mlir/Dialect/GPU/IR/CompilationInterfaces.h b/mlir/include/mlir/Dialect/GPU/IR/CompilationInterfaces.h
index d4b16a1de8eddc..8cf8a7e55517d4 100644
--- a/mlir/include/mlir/Dialect/GPU/IR/CompilationInterfaces.h
+++ b/mlir/include/mlir/Dialect/GPU/IR/CompilationInterfaces.h
@@ -51,7 +51,7 @@ class TargetOptions {
   /// `Fatbin`.
   TargetOptions(
       StringRef toolkitPath = {}, ArrayRef<std::string> linkFiles = {},
-      StringRef cmdOptions = {},
+      StringRef cmdOptions = {}, StringRef elfSection = {},
       CompilationTarget compilationTarget = getDefaultCompilationTarget(),
       function_ref<SymbolTable *()> getSymbolTableCallback = {},
       function_ref<void(llvm::Module &)> initialLlvmIRCallback = {},
@@ -71,6 +71,9 @@ class TargetOptions {
   /// Returns the command line options.
   StringRef getCmdOptions() const;
 
+  /// Returns the ELF section.
+  StringRef getELFSection() const;
+
   /// Returns a tokenization of the command line options.
   std::pair<llvm::BumpPtrAllocator, SmallVector<const char *>>
   tokenizeCmdOptions() const;
@@ -110,6 +113,7 @@ class TargetOptions {
   TargetOptions(
       TypeID typeID, StringRef toolkitPath = {},
       ArrayRef<std::string> linkFiles = {}, StringRef cmdOptions = {},
+      StringRef elfSection = {},
       CompilationTarget compilationTarget = getDefaultCompilationTarget(),
       function_ref<SymbolTable *()> getSymbolTableCallback = {},
       function_ref<void(llvm::Module &)> initialLlvmIRCallback = {},
@@ -127,6 +131,9 @@ class TargetOptions {
   /// process.
   std::string cmdOptions;
 
+  /// ELF Section where the binary needs to be located
+  std::string elfSection;
+
   /// Compilation process target format.
   CompilationTarget compilationTarget;
 
diff --git a/mlir/include/mlir/Dialect/GPU/Transforms/Passes.td b/mlir/include/mlir/Dialect/GPU/Transforms/Passes.td
index 784721d19d0ccd..cadfd866cb259d 100644
--- a/mlir/include/mlir/Dialect/GPU/Transforms/Passes.td
+++ b/mlir/include/mlir/Dialect/GPU/Transforms/Passes.td
@@ -87,16 +87,15 @@ def GpuModuleToBinaryPass
     3. `binary`, `bin`: produces binaries.
     4. `fatbinary`, `fatbin`: produces fatbinaries.
   }];
-  let options = [
-    Option<"toolkitPath", "toolkit", "std::string", [{""}],
-           "Toolkit path.">,
-    ListOption<"linkFiles", "l", "std::string",
-           "Extra files to link to.">,
-    Option<"cmdOptions", "opts", "std::string", [{""}],
-           "Command line options to pass to the tools.">,
-    Option<"compilationTarget", "format", "std::string", [{"fatbin"}],
-           "The target representation of the compilation process.">
-  ];
+  let options =
+      [Option<"toolkitPath", "toolkit", "std::string", [{""}], "Toolkit path.">,
+       ListOption<"linkFiles", "l", "std::string", "Extra files to link to.">,
+       Option<"cmdOptions", "opts", "std::string", [{""}],
+              "Command line options to pass to the tools.">,
+       Option<"compilationTarget", "format", "std::string", [{"fatbin"}],
+              "The target representation of the compilation process.">,
+       Option<"elfSection", "section", "std::string", [{""}],
+              "ELF section where binary is to be located.">];
 }
 
 def GpuNVVMAttachTarget: Pass<"nvvm-attach-target", ""> {
diff --git a/mlir/lib/Dialect/GPU/IR/GPUDialect.cpp b/mlir/lib/Dialect/GPU/IR/GPUDialect.cpp
index ee00fbeb28b61d..1fad251b2f79e0 100644
--- a/mlir/lib/Dialect/GPU/IR/GPUDialect.cpp
+++ b/mlir/lib/Dialect/GPU/IR/GPUDialect.cpp
@@ -2484,27 +2484,31 @@ KernelMetadataAttr KernelTableAttr::lookup(StringAttr key) const {
 
 TargetOptions::TargetOptions(
     StringRef toolkitPath, ArrayRef<std::string> linkFiles,
-    StringRef cmdOptions, CompilationTarget compilationTarget,
+    StringRef cmdOptions, StringRef elfSection,
+    CompilationTarget compilationTarget,
     function_ref<SymbolTable *()> getSymbolTableCallback,
     function_ref<void(llvm::Module &)> initialLlvmIRCallback,
     function_ref<void(llvm::Module &)> linkedLlvmIRCallback,
     function_ref<void(llvm::Module &)> optimizedLlvmIRCallback,
     function_ref<void(StringRef)> isaCallback)
     : TargetOptions(TypeID::get<TargetOptions>(), toolkitPath, linkFiles,
-                    cmdOptions, compilationTarget, getSymbolTableCallback,
-                    initialLlvmIRCallback, linkedLlvmIRCallback,
-                    optimizedLlvmIRCallback, isaCallback) {}
+                    cmdOptions, elfSection, compilationTarget,
+                    getSymbolTableCallback, initialLlvmIRCallback,
+                    linkedLlvmIRCallback, optimizedLlvmIRCallback,
+                    isaCallback) {}
 
 TargetOptions::TargetOptions(
     TypeID typeID, StringRef toolkitPath, ArrayRef<std::string> linkFiles,
-    StringRef cmdOptions, CompilationTarget compilationTarget,
+    StringRef cmdOptions, StringRef elfSection,
+    CompilationTarget compilationTarget,
     function_ref<SymbolTable *()> getSymbolTableCallback,
     function_ref<void(llvm::Module &)> initialLlvmIRCallback,
     function_ref<void(llvm::Module &)> linkedLlvmIRCallback,
     function_ref<void(llvm::Module &)> optimizedLlvmIRCallback,
     function_ref<void(StringRef)> isaCallback)
     : toolkitPath(toolkitPath.str()), linkFiles(linkFiles),
-      cmdOptions(cmdOptions.str()), compilationTarget(compilationTarget),
+      cmdOptions(cmdOptions.str()), elfSection(elfSection.str()),
+      compilationTarget(compilationTarget),
       getSymbolTableCallback(getSymbolTableCallback),
       initialLlvmIRCallback(initialLlvmIRCallback),
       linkedLlvmIRCallback(linkedLlvmIRCallback),
@@ -2519,6 +2523,8 @@ ArrayRef<std::string> TargetOptions::getLinkFiles() const { return linkFiles; }
 
 StringRef TargetOptions::getCmdOptions() const { return cmdOptions; }
 
+StringRef TargetOptions::getELFSection() const { return elfSection; }
+
 SymbolTable *TargetOptions::getSymbolTable() const {
   return getSymbolTableCallback ? getSymbolTableCallback() : nullptr;
 }
diff --git a/mlir/lib/Dialect/GPU/Transforms/ModuleToBinary.cpp b/mlir/lib/Dialect/GPU/Transforms/ModuleToBinary.cpp
index 86a3b4780e88ce..295ece4782fdbf 100644
--- a/mlir/lib/Dialect/GPU/Transforms/ModuleToBinary.cpp
+++ b/mlir/lib/Dialect/GPU/Transforms/ModuleToBinary.cpp
@@ -69,8 +69,8 @@ void GpuModuleToBinaryPass::runOnOperation() {
     return &parentTable.value();
   };
 
-  TargetOptions targetOptions(toolkitPath, linkFiles, cmdOptions, *targetFormat,
-                              lazyTableBuilder);
+  TargetOptions targetOptions(toolkitPath, linkFiles, cmdOptions, elfSection,
+                              *targetFormat, lazyTableBuilder);
   if (failed(transformGpuModulesToBinaries(
           getOperation(), OffloadingLLVMTranslationAttrInterface(nullptr),
           targetOptions)))
diff --git a/mlir/lib/Target/LLVM/NVVM/Target.cpp b/mlir/lib/Target/LLVM/NVVM/Target.cpp
index 152d2dd6326666..e39c63d2b422bb 100644
--- a/mlir/lib/Target/LLVM/NVVM/Target.cpp
+++ b/mlir/lib/Target/LLVM/NVVM/Target.cpp
@@ -669,8 +669,9 @@ NVVMTargetAttrImpl::createObject(Attribute attribute, Operation *module,
     properties.push_back(
         builder.getNamedAttr("O", builder.getI32IntegerAttr(target.getO())));
 
-  if (StringAttr section = target.getSection())
-    properties.push_back(builder.getNamedAttr("section", section));
+  if (auto section = options.getELFSection(); !section.empty())
+    properties.push_back(
+        builder.getNamedAttr("section", builder.getStringAttr(section)));
 
   if (!properties.empty())
     objectProps = builder.getDictionaryAttr(properties);
diff --git a/mlir/test/Dialect/GPU/module-to-binary-nvvm.mlir b/mlir/test/Dialect/GPU/module-to-binary-nvvm.mlir
index c286c8bc9042ff..8b93e7ef983a6c 100644
--- a/mlir/test/Dialect/GPU/module-to-binary-nvvm.mlir
+++ b/mlir/test/Dialect/GPU/module-to-binary-nvvm.mlir
@@ -1,10 +1,12 @@
 // REQUIRES: host-supports-nvptx
 // RUN: mlir-opt %s --gpu-module-to-binary="format=llvm" | FileCheck %s
 // RUN: mlir-opt %s --gpu-module-to-binary="format=isa" | FileCheck %s -check-prefix=CHECK-ISA
+// RUN: mlir-opt %s --gpu-module-to-binary="section=__fatbin" | FileCheck %s -check-prefix=CHECK-SECTION
 
 module attributes {gpu.container_module} {
   // CHECK-LABEL:gpu.binary @kernel_module1
   // CHECK:[#gpu.object<#nvvm.target<chip = "sm_70">, offload = "{{.*}}">]
+  // CHECK-SECTION: #gpu.object<#nvvm.target<chip = "sm_70">, properties = {section = "__fatbin"}
   gpu.module @kernel_module1 [#nvvm.target<chip = "sm_70">] {
     llvm.func @kernel(%arg0: i32, %arg1: !llvm.ptr,
         %arg2: !llvm.ptr, %arg3: i64, %arg4: i64,
@@ -25,6 +27,7 @@ module attributes {gpu.container_module} {
 
   // CHECK-LABEL:gpu.binary @kernel_module3 <#gpu.select_object<1 : i64>>
   // CHECK:[#gpu.object<#nvvm.target<chip = "sm_70">, offload = "{{.*}}">, #gpu.object<#nvvm.target<chip = "sm_80">, offload = "{{.*}}">]
+  // CHECK-SECTION: [#gpu.object<#nvvm.target<chip = "sm_70">, properties = {section = "__fatbin"},{{.*}} #gpu.object<#nvvm.target<chip = "sm_80">, properties = {section = "__fatbin"}
   gpu.module @kernel_module3 <#gpu.select_object<1>> [
       #nvvm.target<chip = "sm_70">,
       #nvvm.target<chip = "sm_80">] {
diff --git a/mlir/unittests/Target/LLVM/SerializeNVVMTarget.cpp b/mlir/unittests/Target/LLVM/SerializeNVVMTarget.cpp
index eee9bd5f234751..a92ad18c956821 100644
--- a/mlir/unittests/Target/LLVM/SerializeNVVMTarget.cpp
+++ b/mlir/unittests/Target/LLVM/SerializeNVVMTarget.cpp
@@ -81,7 +81,7 @@ TEST_F(MLIRTargetLLVMNVVM, SKIP_WITHOUT_NVPTX(SerializeNVVMMToLLVM)) {
   // Serialize the module.
   auto serializer = dyn_cast<gpu::TargetAttrInterface>(target);
   ASSERT_TRUE(!!serializer);
-  gpu::TargetOptions options("", {}, "", gpu::CompilationTarget::Offload);
+  gpu::TargetOptions options("", {}, "", "", gpu::CompilationTarget::Offload);
   for (auto gpuModule : (*module).getBody()->getOps<gpu::GPUModuleOp>()) {
     std::optional<SmallVector<char, 0>> object =
         serializer.serializeToObject(gpuModule, options);
@@ -117,7 +117,7 @@ TEST_F(MLIRTargetLLVMNVVM, SKIP_WITHOUT_NVPTX(SerializeNVVMToPTX)) {
   // Serialize the module.
   auto serializer = dyn_cast<gpu::TargetAttrInterface>(target);
   ASSERT_TRUE(!!serializer);
-  gpu::TargetOptions options("", {}, "", gpu::CompilationTarget::Assembly);
+  gpu::TargetOptions options("", {}, "", "", gpu::CompilationTarget::Assembly);
   for (auto gpuModule : (*module).getBody()->getOps<gpu::GPUModuleOp>()) {
     std::optional<SmallVector<char, 0>> object =
         serializer.serializeToObject(gpuModule, options);
@@ -147,7 +147,7 @@ TEST_F(MLIRTargetLLVMNVVM, SKIP_WITHOUT_NVPTX(SerializeNVVMToBinary)) {
   // Serialize the module.
   auto serializer = dyn_cast<gpu::TargetAttrInterface>(target);
   ASSERT_TRUE(!!serializer);
-  gpu::TargetOptions options("", {}, "", gpu::CompilationTarget::Binary);
+  gpu::TargetOptions options("", {}, "", "", gpu::CompilationTarget::Binary);
   for (auto gpuModule : (*module).getBody()->getOps<gpu::GPUModuleOp>()) {
     std::optional<SmallVector<char, 0>> object =
         serializer.serializeToObject(gpuModule, options);
@@ -194,9 +194,9 @@ TEST_F(MLIRTargetLLVMNVVM,
     isaResult = isa.str();
   };
 
-  gpu::TargetOptions options({}, {}, {}, gpu::CompilationTarget::Assembly, {},
-                             initialCallback, linkedCallback, optimizedCallback,
-                             isaCallback);
+  gpu::TargetOptions options({}, {}, {}, {}, gpu::CompilationTarget::Assembly,
+                             {}, initialCallback, linkedCallback,
+                             optimizedCallback, isaCallback);
 
   for (auto gpuModule : (*module).getBody()->getOps<gpu::GPUModuleOp>()) {
     std::optional<SmallVector<char, 0>> object =
diff --git a/mlir/unittests/Target/LLVM/SerializeROCDLTarget.cpp b/mlir/unittests/Target/LLVM/SerializeROCDLTarget.cpp
index b02f34c812b3f4..d5e72a17131748 100644
--- a/mlir/unittests/Target/LLVM/SerializeROCDLTarget.cpp
+++ b/mlir/unittests/Target/LLVM/SerializeROCDLTarget.cpp
@@ -83,7 +83,7 @@ TEST_F(MLIRTargetLLVMROCDL, SKIP_WITHOUT_AMDGPU(SerializeROCDLToLLVM)) {
   // Serialize the module.
   auto serializer = dyn_cast<gpu::TargetAttrInterface>(target);
   ASSERT_TRUE(!!serializer);
-  gpu::TargetOptions options("", {}, "", gpu::CompilationTarget::Offload);
+  gpu::TargetOptions options("", {}, "", "", gpu::CompilationTarget::Offload);
   for (auto gpuModule : (*module).getBody()->getOps<gpu::GPUModuleOp>()) {
     std::optional<SmallVector<char, 0>> object =
         serializer.serializeToObject(gpuModule, options);
@@ -119,7 +119,7 @@ TEST_F(MLIRTargetLLVMROCDL,
   // Serialize the module.
   auto serializer = dyn_cast<gpu::TargetAttrInterface>(target);
   ASSERT_TRUE(!!serializer);
-  gpu::TargetOptions options("", {}, "", gpu::CompilationTarget::Assembly);
+  gpu::TargetOptions options("", {}, "", "", gpu::CompilationTarget::Assembly);
   for (auto gpuModule : (*module).getBody()->getOps<gpu::GPUModuleOp>()) {
     std::optional<SmallVector<char, 0>> object =
         serializer.serializeToObject(gpuModule, options);
@@ -145,7 +145,7 @@ TEST_F(MLIRTargetLLVMROCDL,
   // Serialize the module.
   auto serializer = dyn_cast<gpu::TargetAttrInterface>(target);
   ASSERT_TRUE(!!serializer);
-  gpu::TargetOptions options("", {}, "", gpu::CompilationTarget::Assembly);
+  gpu::TargetOptions options("", {}, "", "", gpu::CompilationTarget::Assembly);
   for (auto gpuModule : (*module).getBody()->getOps<gpu::GPUModuleOp>()) {
     std::optional<SmallVector<char, 0>> object =
         serializer.serializeToObject(gpuModule, options);
@@ -169,7 +169,7 @@ TEST_F(MLIRTargetLLVMROCDL, SKIP_WITHOUT_AMDGPU(SerializeROCDLToPTX)) {
   // Serialize the module.
   auto serializer = dyn_cast<gpu::TargetAttrInterface>(target);
   ASSERT_TRUE(!!serializer);
-  gpu::TargetOptions options("", {}, "", gpu::CompilationTarget::Assembly);
+  gpu::TargetOptions options("", {}, "", "", gpu::CompilationTarget::Assembly);
   for (auto gpuModule : (*module).getBody()->getOps<gpu::GPUModuleOp>()) {
     std::optional<SmallVector<char, 0>> object =
         serializer.serializeToObject(gpuModule, options);
@@ -199,7 +199,7 @@ TEST_F(MLIRTargetLLVMROCDL, SKIP_WITHOUT_AMDGPU(SerializeROCDLToBinary)) {
   // Serialize the module.
   auto serializer = dyn_cast<gpu::TargetAttrInterface>(target);
   ASSERT_TRUE(!!serializer);
-  gpu::TargetOptions options("", {}, "", gpu::CompilationTarget::Binary);
+  gpu::TargetOptions options("", {}, "", "", gpu::CompilationTarget::Binary);
   for (auto gpuModule : (*module).getBody()->getOps<gpu::GPUModuleOp>()) {
     std::optional<SmallVector<char, 0>> object =
         serializer.serializeToObject(gpuModule, options);
@@ -243,7 +243,7 @@ TEST_F(MLIRTargetLLVMROCDL, SKIP_WITHOUT_AMDGPU(GetELFMetadata)) {
   // Serialize the module.
   auto serializer = dyn_cast<gpu::TargetAttrInterface>(target);
   ASSERT_TRUE(!!serializer);
-  gpu::TargetOptions options("", {}, "", gpu::CompilationTarget::Binary);
+  gpu::TargetOptions options("", {}, "", "", gpu::CompilationTarget::Binary);
   for (auto gpuModule : (*module).getBody()->getOps<gpu::GPUModuleOp>()) {
     std::optional<SmallVector<char, 0>> object =
         serializer.serializeToObject(gpuModule, options);
diff --git a/mlir/unittests/Target/LLVM/SerializeToLLVMBitcode.cpp b/mlir/unittests/Target/LLVM/SerializeToLLVMBitcode.cpp
index 63d1dbd2519bea..314f25833f38ca 100644
--- a/mlir/unittests/Target/LLVM/SerializeToLLVMBitcode.cpp
+++ b/mlir/unittests/Target/LLVM/SerializeToLLVMBitcode.cpp
@@ -174,8 +174,8 @@ TEST_F(MLIRTargetLLVM, SKIP_WITHOUT_NATIVE(CallbackInvokedWithInitialLLVMIR)) {
   };
 
   gpu::TargetOptions opts(
-      {}, {}, {}, mlir::gpu::TargetOptions::getDefaultCompilationTarget(), {},
-      initialCallback);
+      {}, {}, {}, {}, mlir::gpu::TargetOptions::getDefaultCompilationTarget(),
+      {}, initialCallback);
   std::optional<SmallVector<char, 0>> serializedBinary =
       targetAttr.serializeToObject(*module, opts);
 
@@ -202,8 +202,8 @@ TEST_F(MLIRTargetLLVM, SKIP_WITHOUT_NATIVE(CallbackInvokedWithLinkedLLVMIR)) {
   };
 
   gpu::TargetOptions opts(
-      {}, {}, {}, mlir::gpu::TargetOptions::getDefaultCompilationTarget(), {},
-      {}, linkedCallback);
+      {}, {}, {}, {}, mlir::gpu::TargetOptions::getDefaultCompilationTarget(),
+      {}, {}, linkedCallback);
   std::optional<SmallVector<char, 0>> serializedBinary =
       targetAttr.serializeToObject(*module, opts);
 
@@ -231,8 +231,8 @@ TEST_F(MLIRTargetLLVM,
   };
 
   gpu::TargetOptions opts(
-      {}, {}, {}, mlir::gpu::TargetOptions::getDefaultCompilationTarget(), {},
-      {}, {}, optimizedCallback);
+      {}, {}, {}, {}, mlir::gpu::TargetOptions::getDefaultCompilationTarget(),
+      {}, {}, {}, optimizedCallback);
   std::optional<SmallVector<char, 0>> serializedBinary =
       targetAttr.serializeToObject(*module, opts);
 

>From 5443ad92786d7c9758ce83c68d13629e0847c11d Mon Sep 17 00:00:00 2001
From: Renaud-K <rkauffmann at nvidia.com>
Date: Tue, 10 Dec 2024 15:39:48 -0800
Subject: [PATCH 3/3] Reverting initial commit

---
 mlir/include/mlir/Dialect/GPU/Transforms/Passes.td   | 3 ---
 mlir/include/mlir/Dialect/LLVMIR/NVVMOps.td          | 6 ++----
 mlir/lib/Dialect/GPU/Transforms/NVVMAttachTarget.cpp | 4 +---
 mlir/lib/Dialect/LLVMIR/IR/NVVMDialect.cpp           | 4 ++--
 mlir/test/Dialect/LLVMIR/attach-targets.mlir         | 3 ---
 5 files changed, 5 insertions(+), 15 deletions(-)

diff --git a/mlir/include/mlir/Dialect/GPU/Transforms/Passes.td b/mlir/include/mlir/Dialect/GPU/Transforms/Passes.td
index cadfd866cb259d..e9e5dade84c988 100644
--- a/mlir/include/mlir/Dialect/GPU/Transforms/Passes.td
+++ b/mlir/include/mlir/Dialect/GPU/Transforms/Passes.td
@@ -138,9 +138,6 @@ def GpuNVVMAttachTarget: Pass<"nvvm-attach-target", ""> {
     Option<"ftzFlag", "ftz", "bool",
            /*default=*/"false",
            "Enable flush to zero for denormals.">,
-    Option<"elfSection", "section", "std::string",
-           /*default=*/"\"\"",
-           "ELF section where the module needs to be created.">,
     ListOption<"linkLibs", "l", "std::string",
            "Extra bitcode libraries paths to link to.">,
   ];
diff --git a/mlir/include/mlir/Dialect/LLVMIR/NVVMOps.td b/mlir/include/mlir/Dialect/LLVMIR/NVVMOps.td
index 03c03d5f66b9af..296a3c305e5bf4 100644
--- a/mlir/include/mlir/Dialect/LLVMIR/NVVMOps.td
+++ b/mlir/include/mlir/Dialect/LLVMIR/NVVMOps.td
@@ -2266,22 +2266,20 @@ def NVVM_TargettAttr : NVVM_Attr<"NVVMTarget", "target"> {
     StringRefParameter<"Target triple.", "\"nvptx64-nvidia-cuda\"">:$triple,
     StringRefParameter<"Target chip.", "\"sm_50\"">:$chip,
     StringRefParameter<"Target chip features.", "\"+ptx60\"">:$features,
-    OptionalParameter<"StringAttr", "ELF section.">:$section,
     OptionalParameter<"DictionaryAttr", "Target specific flags.">:$flags,
     OptionalParameter<"ArrayAttr", "Files to link to the LLVM module.">:$link
   );
   let assemblyFormat = [{
-    (`<` struct($O, $triple, $chip, $features, $section, $flags, $link)^ `>`)?
+    (`<` struct($O, $triple, $chip, $features, $flags, $link)^ `>`)?
   }];
   let builders = [
     AttrBuilder<(ins CArg<"int", "2">:$optLevel,
                      CArg<"StringRef", "\"nvptx64-nvidia-cuda\"">:$triple,
                      CArg<"StringRef", "\"sm_50\"">:$chip,
                      CArg<"StringRef", "\"+ptx60\"">:$features,
-                     CArg<"StringAttr", "nullptr">:$section,
                      CArg<"DictionaryAttr", "nullptr">:$targetFlags,
                      CArg<"ArrayAttr", "nullptr">:$linkFiles), [{
-      return Base::get($_ctxt, optLevel, triple, chip, features, section, targetFlags, linkFiles);
+      return Base::get($_ctxt, optLevel, triple, chip, features, targetFlags, linkFiles);
     }]>
   ];
   let skipDefaultBuilders = 1;
diff --git a/mlir/lib/Dialect/GPU/Transforms/NVVMAttachTarget.cpp b/mlir/lib/Dialect/GPU/Transforms/NVVMAttachTarget.cpp
index 5628361c6a843c..dd705cd3383121 100644
--- a/mlir/lib/Dialect/GPU/Transforms/NVVMAttachTarget.cpp
+++ b/mlir/lib/Dialect/GPU/Transforms/NVVMAttachTarget.cpp
@@ -63,9 +63,7 @@ void NVVMAttachTarget::runOnOperation() {
   ArrayRef<std::string> libs(linkLibs);
   SmallVector<StringRef> filesToLink(libs);
   auto target = builder.getAttr<NVVMTargetAttr>(
-      optLevel, triple, chip, features,
-      elfSection.empty() ? nullptr : builder.getStringAttr(elfSection),
-      getFlags(builder),
+      optLevel, triple, chip, features, getFlags(builder),
       filesToLink.empty() ? nullptr : builder.getStrArrayAttr(filesToLink));
   llvm::Regex matcher(moduleMatcher);
   for (Region &region : getOperation()->getRegions())
diff --git a/mlir/lib/Dialect/LLVMIR/IR/NVVMDialect.cpp b/mlir/lib/Dialect/LLVMIR/IR/NVVMDialect.cpp
index 9d6d9d3cf66821..ca04af0b060b4f 100644
--- a/mlir/lib/Dialect/LLVMIR/IR/NVVMDialect.cpp
+++ b/mlir/lib/Dialect/LLVMIR/IR/NVVMDialect.cpp
@@ -1185,8 +1185,8 @@ LogicalResult NVVMDialect::verifyRegionArgAttribute(Operation *op,
 LogicalResult
 NVVMTargetAttr::verify(function_ref<InFlightDiagnostic()> emitError,
                        int optLevel, StringRef triple, StringRef chip,
-                       StringRef features, StringAttr elfSection,
-                       DictionaryAttr flags, ArrayAttr files) {
+                       StringRef features, DictionaryAttr flags,
+                       ArrayAttr files) {
   if (optLevel < 0 || optLevel > 3) {
     emitError() << "The optimization level must be a number between 0 and 3.";
     return failure();
diff --git a/mlir/test/Dialect/LLVMIR/attach-targets.mlir b/mlir/test/Dialect/LLVMIR/attach-targets.mlir
index 832e0443e720f7..83733db400798e 100644
--- a/mlir/test/Dialect/LLVMIR/attach-targets.mlir
+++ b/mlir/test/Dialect/LLVMIR/attach-targets.mlir
@@ -1,16 +1,13 @@
 // RUN: mlir-opt %s --nvvm-attach-target='module=nvvm.* O=3 chip=sm_90' --rocdl-attach-target='module=rocdl.* O=3 chip=gfx90a' | FileCheck %s
 // RUN: mlir-opt %s --nvvm-attach-target='module=options.* O=1 chip=sm_70 fast=true ftz=true' --rocdl-attach-target='module=options.* l=file1.bc,file2.bc wave64=false finite-only=true' | FileCheck %s --check-prefix=CHECK_OPTS
-// RUN: mlir-opt %s --nvvm-attach-target='module=nvvm.* section=__fatbin' | FileCheck %s --check-prefix=CHECK_SECTION
 
 module attributes {gpu.container_module} {
 // Verify the target is appended.
 // CHECK: @nvvm_module_1 [#nvvm.target<O = 3, chip = "sm_90">] {
-// CHECK_SECTION: @nvvm_module_1 [#nvvm.target<section = "__fatbin">] 
 gpu.module @nvvm_module_1 {
 }
 // Verify the target is appended.
 // CHECK: @nvvm_module_2 [#nvvm.target<chip = "sm_60">, #nvvm.target<O = 3, chip = "sm_90">] {
-// CHECK_SECTION: gpu.module @nvvm_module_2 [#nvvm.target<chip = "sm_60">, #nvvm.target<section = "__fatbin">] 
 gpu.module @nvvm_module_2 [#nvvm.target<chip = "sm_60">] {
 }
 // Verify the target is not added multiple times.



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