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| author | Richard-Qin-X <richard.qin.001@gmail.com> | 2026-08-17 02:56:45 +0800 |
|---|---|---|
| committer | Richard-Qin-X <richard.qin.001@gmail.com> | 2026-08-17 02:56:45 +0800 |
| commit | 53145c4020d237d2572b4109e0d425863dc34f9b (patch) | |
| tree | 8f53b75dc3e3fd64bc6faec420620fcaf12b2233 /backend/lib | |
| parent | 103299abab6922f450671baa76e34ad746ac4312 (diff) | |
| download | rcc-project-53145c4020d237d2572b4109e0d425863dc34f9b.tar.gz rcc-project-53145c4020d237d2572b4109e0d425863dc34f9b.tar.xz | |
[RISCV][GlobalISel] Generate implicit-def selection
Diffstat (limited to 'backend/lib')
| -rw-r--r-- | backend/lib/Target/RISCV/GISel/RISCVInstructionSelector.cpp | 3 | ||||
| -rw-r--r-- | backend/lib/Target/RISCV/RISCVGISelInteger.rccdesc | 10 |
2 files changed, 10 insertions, 3 deletions
diff --git a/backend/lib/Target/RISCV/GISel/RISCVInstructionSelector.cpp b/backend/lib/Target/RISCV/GISel/RISCVInstructionSelector.cpp index bd46144..cde2c8d 100644 --- a/backend/lib/Target/RISCV/GISel/RISCVInstructionSelector.cpp +++ b/backend/lib/Target/RISCV/GISel/RISCVInstructionSelector.cpp @@ -405,7 +405,6 @@ public: case GenericOpcode::G_DEBUGTRAP: case GenericOpcode::G_UBSANTRAP: case GenericOpcode::G_PHI: - case GenericOpcode::G_IMPLICIT_DEF: return {}; default: return makeUnexpected(ErrorCode::Unsupported, @@ -493,8 +492,6 @@ public: return selectTrap(Instruction); case GenericOpcode::G_PHI: return Instruction.setOpcode(opcode(GenericOpcode::PHI)); - case GenericOpcode::G_IMPLICIT_DEF: - return Instruction.setOpcode(opcode(GenericOpcode::IMPLICIT_DEF)); case GenericOpcode::COPY: case GenericOpcode::IMPLICIT_DEF: case GenericOpcode::PHI: diff --git a/backend/lib/Target/RISCV/RISCVGISelInteger.rccdesc b/backend/lib/Target/RISCV/RISCVGISelInteger.rccdesc index 1667f66..f40e5d4 100644 --- a/backend/lib/Target/RISCV/RISCVGISelInteger.rccdesc +++ b/backend/lib/Target/RISCV/RISCVGISelInteger.rccdesc @@ -1,5 +1,15 @@ selection_rules: - + id: select_g_implicit_def + priority: 100 + match: + opcode: G_IMPLICIT_DEF + apply: + instructions: + - opcode: IMPLICIT_DEF + root: true + operands: [{ operand: 0 }] + - id: select_g_sext_s64_s32 priority: 500 match: |