mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Richard Smith
be70c092fa
The intent is to add visibility into how the fingerprint is computed, so that fingerprinting issues and mangling collisions can be more readily understood and fixed. Assisted-by: Gemini via Antigravity
52 lines
1.7 KiB
C++
52 lines
1.7 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include "toolchain/lower/lower.h"
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#include <memory>
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#include <optional>
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#include "common/vlog.h"
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#include "llvm/IR/Verifier.h"
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#include "toolchain/lower/context.h"
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#include "toolchain/lower/file_context.h"
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namespace Carbon::Lower {
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auto LowerToLLVM(
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llvm::LLVMContext& llvm_context,
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llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem> fs,
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const Parse::GetTreeAndSubtreesStore& tree_and_subtrees_getters,
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const SemIR::File& sem_ir, int total_ir_count,
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const LowerToLLVMOptions& options) -> std::unique_ptr<llvm::Module> {
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Context context(
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&llvm_context, std::move(fs), options.want_debug_info,
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&tree_and_subtrees_getters,
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sem_ir.cpp_file() ? sem_ir.cpp_file()->GetCodeGenerator() : nullptr,
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sem_ir.filename(), total_ir_count, options.opt_level,
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options.mangle_string_fingerprint, options.vlog_stream);
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// TODO: Consider disabling instruction naming by default if we're not
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// producing textual LLVM IR.
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SemIR::InstNamer inst_namer(&sem_ir, total_ir_count);
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context.GetFileContext(&sem_ir, &inst_namer).LowerDefinitions();
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std::unique_ptr<llvm::Module> module = std::move(context).Finalize();
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if (options.vlog_stream) {
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CARBON_VLOG_TO(options.vlog_stream, "*** llvm::Module ***\n");
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module->print(*options.vlog_stream, /*AAW=*/nullptr,
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/*ShouldPreserveUseListOrder=*/false,
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/*IsForDebug=*/true);
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}
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if (options.llvm_verifier_stream) {
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CARBON_CHECK(!llvm::verifyModule(*module, options.llvm_verifier_stream));
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}
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return module;
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}
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} // namespace Carbon::Lower
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