From 240fc1e0aab8558ed9fa5da1ee74530a9262e7d5 Mon Sep 17 00:00:00 2001 From: Alex Lorenz Date: Tue, 23 Jun 2015 23:42:28 +0000 Subject: MIR Serialization: Serialize immediate machine operands. Reviewers: Duncan P. N. Exon Smith Differential Revision: http://reviews.llvm.org/D10573 llvm-svn: 240481 --- llvm/lib/CodeGen/MIRParser/MILexer.cpp | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'llvm/lib/CodeGen/MIRParser/MILexer.cpp') diff --git a/llvm/lib/CodeGen/MIRParser/MILexer.cpp b/llvm/lib/CodeGen/MIRParser/MILexer.cpp index 1cc5956d9fb..b836221d9f0 100644 --- a/llvm/lib/CodeGen/MIRParser/MILexer.cpp +++ b/llvm/lib/CodeGen/MIRParser/MILexer.cpp @@ -33,7 +33,7 @@ public: bool isEOF() const { return Ptr == End; } - char peek() const { return isEOF() ? 0 : *Ptr; } + char peek(unsigned I = 0) const { return End - Ptr <= I ? 0 : Ptr[I]; } void advance() { ++Ptr; } @@ -77,6 +77,16 @@ static Cursor lexPercent(Cursor C, MIToken &Token) { return C; } +static Cursor lexIntegerLiteral(Cursor C, MIToken &Token) { + auto Range = C; + C.advance(); + while (isdigit(C.peek())) + C.advance(); + StringRef StrVal = Range.upto(C); + Token = MIToken(MIToken::IntegerLiteral, StrVal, APSInt(StrVal)); + return C; +} + static MIToken::TokenKind symbolToken(char C) { switch (C) { case ',': @@ -109,6 +119,8 @@ StringRef llvm::lexMIToken( return lexIdentifier(C, Token).remaining(); if (Char == '%') return lexPercent(C, Token).remaining(); + if (isdigit(Char) || (Char == '-' && isdigit(C.peek(1)))) + return lexIntegerLiteral(C, Token).remaining(); MIToken::TokenKind Kind = symbolToken(Char); if (Kind != MIToken::Error) return lexSymbol(C, Kind, Token).remaining(); -- cgit v1.2.3