From f5d9ddc085055d28d6f9fb3730c3566097f43fb2 Mon Sep 17 00:00:00 2001 From: Richard-Qin-X Date: Tue, 25 Aug 2026 03:11:23 +0800 Subject: [CodeGen] Implement the greedy register allocator pipeline --- backend/lib/CodeGen/RegAllocGreedy.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 backend/lib/CodeGen/RegAllocGreedy.h (limited to 'backend/lib/CodeGen/RegAllocGreedy.h') diff --git a/backend/lib/CodeGen/RegAllocGreedy.h b/backend/lib/CodeGen/RegAllocGreedy.h new file mode 100644 index 0000000..1f25a5c --- /dev/null +++ b/backend/lib/CodeGen/RegAllocGreedy.h @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +// The private header has no stable include-root-relative guard name. +// NOLINTNEXTLINE(llvm-header-guard) +#ifndef RCC_LIB_CODEGEN_REGALLOCGREEDY_H +#define RCC_LIB_CODEGEN_REGALLOCGREEDY_H + +#include "rcc/CodeGen/RegAllocCommon.h" +#include "rcc/CodeGen/TargetRegisterAllocationInfo.h" + +namespace rcc { + +class GreedyAllocatorPass final : public MachineFunctionPass { +public: + explicit GreedyAllocatorPass(const TargetRegisterAllocationInfo &Info, + RegisterAllocationOptions Options = {}) noexcept + : Info(&Info), Options(Options) {} + + [[nodiscard]] const MachinePassContract &contract() const noexcept override; + [[nodiscard]] Expected run(MachineFunction &Function, + const TargetDescription &Target, + MachineFunctionAnalysisManager &Analyses) override; + +private: + const TargetRegisterAllocationInfo *Info; + RegisterAllocationOptions Options; +}; + +} // namespace rcc + +#endif // RCC_LIB_CODEGEN_REGALLOCGREEDY_H -- cgit v1.2.3