From 183e2354e9fdd107be420cbb185c1d239434aa48 Mon Sep 17 00:00:00 2001 From: Richard-Qin-X Date: Tue, 4 Aug 2026 05:34:15 +0800 Subject: [MIR] Add machine instruction parser and printer Parse MachineFunction bodies in two passes and serialize the same MachineIR model in complete or readable form. Extend instruction attachments and memory operands required by the fixed LLVM MIR grammar, and cover deterministic parse-print round trips. --- backend/lib/MIR/MILexer.cpp | 42 ++++++++++++++++++++++++++++++------------ 1 file changed, 30 insertions(+), 12 deletions(-) (limited to 'backend/lib/MIR/MILexer.cpp') diff --git a/backend/lib/MIR/MILexer.cpp b/backend/lib/MIR/MILexer.cpp index 816264e..f568cef 100644 --- a/backend/lib/MIR/MILexer.cpp +++ b/backend/lib/MIR/MILexer.cpp @@ -569,14 +569,25 @@ private: ++Offset; const std::string_view Number = slice(NumberBegin, Offset); - std::size_t NameBegin = Offset; - if (peek() == '.') { - ++Offset; - NameBegin = Offset; - while (!atEnd() && isIdentifierCharacter(peek())) - ++Offset; + if (peek() != '.') { + return stringToken(IsReference ? MITokenKind::MachineBasicBlock + : MITokenKind::MachineBasicBlockLabel, + Begin, Offset, {}, Number); } + ++Offset; + const std::size_t NameBegin = Offset; + if (peek() == '"') { + auto Quoted = scanQuotedString(Offset); + if (!Quoted) + return token(MITokenKind::Error, Begin, Offset); + Offset = Quoted->End; + return ownedStringToken(IsReference ? MITokenKind::MachineBasicBlock + : MITokenKind::MachineBasicBlockLabel, + Begin, Offset, std::move(Quoted->Value), Number); + } + while (!atEnd() && isIdentifierCharacter(peek())) + ++Offset; return stringToken(IsReference ? MITokenKind::MachineBasicBlock : MITokenKind::MachineBasicBlockLabel, Begin, Offset, slice(NameBegin, Offset), Number); @@ -597,13 +608,20 @@ private: if (!HasOptionalName) return token(Kind, Begin, Offset, Number); - std::size_t NameBegin = Offset; - if (peek() == '.') { - ++Offset; - NameBegin = Offset; - while (!atEnd() && isIdentifierCharacter(peek())) - ++Offset; + if (peek() != '.') + return stringToken(Kind, Begin, Offset, {}, Number); + + ++Offset; + const std::size_t NameBegin = Offset; + if (peek() == '"') { + auto Quoted = scanQuotedString(Offset); + if (!Quoted) + return token(MITokenKind::Error, Begin, Offset); + Offset = Quoted->End; + return ownedStringToken(Kind, Begin, Offset, std::move(Quoted->Value), Number); } + while (!atEnd() && isIdentifierCharacter(peek())) + ++Offset; return stringToken(Kind, Begin, Offset, slice(NameBegin, Offset), Number); } -- cgit v1.2.3