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[MLIR] Import LLVM add flag to disable loadalldialects #122574

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Merged
merged 2 commits into from
Jan 11, 2025
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[MLIR] Import LLVM add flag to disable loadalldialects #122574

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1a68aec
[MLIR] Import LLVM add flag to disable loadalldialects
wsmoses Jan 11, 2025
93bdf75
Update mlir/lib/Target/LLVMIR/ModuleImport.cpp
ftynse Jan 11, 2025
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5 changes: 4 additions & 1 deletion mlir/include/mlir/Target/LLVMIR/Import.h
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Original file line number Diff line number Diff line change
Expand Up @@ -39,10 +39,13 @@ class ModuleOp;
/// be imported without elements. If set, the option avoids the recursive
/// traversal of composite type debug information, which can be expensive for
/// adversarial inputs.
/// The `loadAllDialects` flag (default on) will load all dialects in the
/// context.
OwningOpRef<ModuleOp>
translateLLVMIRToModule(std::unique_ptr<llvm::Module> llvmModule,
MLIRContext *context, bool emitExpensiveWarnings = true,
bool dropDICompositeTypeElements = false);
bool dropDICompositeTypeElements = false,
bool loadAllDialects = true);

/// Translate the given LLVM data layout into an MLIR equivalent using the DLTI
/// dialect.
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6 changes: 4 additions & 2 deletions mlir/lib/Target/LLVMIR/ModuleImport.cpp
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Expand Up @@ -2325,7 +2325,8 @@ ModuleImport::translateLoopAnnotationAttr(const llvm::MDNode *node,
OwningOpRef<ModuleOp>
mlir::translateLLVMIRToModule(std::unique_ptr<llvm::Module> llvmModule,
MLIRContext *context, bool emitExpensiveWarnings,
bool dropDICompositeTypeElements) {
bool dropDICompositeTypeElements,
bool loadAllDialects) {
// Preload all registered dialects to allow the import to iterate the
// registered LLVMImportDialectInterface implementations and query the
// supported LLVM IR constructs before starting the translation. Assumes the
Expand All @@ -2335,7 +2336,8 @@ mlir::translateLLVMIRToModule(std::unique_ptr<llvm::Module> llvmModule,
LLVMDialect::getDialectNamespace()));
assert(llvm::is_contained(context->getAvailableDialects(),
DLTIDialect::getDialectNamespace()));
context->loadAllAvailableDialects();
if (loadAllDialects)
context->loadAllAvailableDialects();
OwningOpRef<ModuleOp> module(ModuleOp::create(FileLineColLoc::get(
StringAttr::get(context, llvmModule->getSourceFileName()), /*line=*/0,
/*column=*/0)));
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