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| author | Richard-Qin-X <richard.qin.001@gmail.com> | 2026-08-25 03:11:23 +0800 |
|---|---|---|
| committer | Richard-Qin-X <richard.qin.001@gmail.com> | 2026-08-25 03:11:23 +0800 |
| commit | f5d9ddc085055d28d6f9fb3730c3566097f43fb2 (patch) | |
| tree | d1ca89a409a0d1a167e79e3d1693c22bcfd823a9 /backend/lib/Target/RISCV/RISCVPipeline.cpp | |
| parent | c3932f55208e3fe2019d26a0e5af421c0b644872 (diff) | |
| download | rcc-project-f5d9ddc085055d28d6f9fb3730c3566097f43fb2.tar.gz rcc-project-f5d9ddc085055d28d6f9fb3730c3566097f43fb2.tar.xz | |
[CodeGen] Implement the greedy register allocator pipeline
Diffstat (limited to 'backend/lib/Target/RISCV/RISCVPipeline.cpp')
| -rw-r--r-- | backend/lib/Target/RISCV/RISCVPipeline.cpp | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/backend/lib/Target/RISCV/RISCVPipeline.cpp b/backend/lib/Target/RISCV/RISCVPipeline.cpp index 854417a..1e18661 100644 --- a/backend/lib/Target/RISCV/RISCVPipeline.cpp +++ b/backend/lib/Target/RISCV/RISCVPipeline.cpp @@ -15,9 +15,11 @@ #include "rcc/CodeGen/MachineOptimizationPipeline.h" #include "rcc/CodeGen/MachinePseudoExpansion.h" #include "rcc/CodeGen/PHIElimination.h" +#include "rcc/CodeGen/RegAllocCommon.h" #include "rcc/CodeGen/RegAllocPBQP.h" #include "rcc/CodeGen/TargetDescription.h" #include "rcc/CodeGen/TwoAddressInstructionPass.h" +#include "rcc/CodeGen/VirtRegMap.h" #include <memory> #include <ranges> @@ -86,7 +88,10 @@ template <typename PassT, typename... ArgumentT> Options.DebugPrologueEpilogue)); if (!Added) return std::unexpected(Added.error()); - return addPass<PBQPAllocatorPass>(Pipeline, registerAllocationInfo()); + Added = addPass<PBQPAllocatorPass>(Pipeline, registerAllocationInfo()); + if (!Added) + return std::unexpected(Added.error()); + return addPass<VirtualRegisterRewritePass>(Pipeline); } [[nodiscard]] Expected<void> addCompleteRegistry(MachineFunctionPassManager &Pipeline, @@ -98,6 +103,9 @@ template <typename PassT, typename... ArgumentT> Added = addSSAExitPipeline(Pipeline, Subtarget, Options); if (!Added) return std::unexpected(Added.error()); + Added = Pipeline.addPass(createGreedyAllocatorPass(registerAllocationInfo())); + if (!Added) + return std::unexpected(Added.error()); Added = addRegisterAllocationPipeline(Pipeline, Subtarget, Options); if (!Added) return std::unexpected(Added.error()); |