This commit serializes the implicit flag for the register machine operands. It
introduces two new keywords into the machine instruction syntax: 'implicit' and
'implicit-def'. The 'implicit' keyword is used for the implicit register
operands, and the 'implicit-def' keyword is used for the register operands that
have both the implicit and the define flags set.
Reviewers: Duncan P. N. Exon Smith
Differential Revision: http://reviews.llvm.org/D10709
llvm-svn: 241519
This commit refactors the machine instruction lexer so that the lexing
functions use the 'maybeLex...' pattern, where they determine if they
can lex the current token by themselves.
Reviewers: Sean Silva
Differential Revision: http://reviews.llvm.org/D10817
llvm-svn: 241078
This commit serializes the global address machine operands.
This commit doesn't serialize the operand's offset and target
flags, it serializes only the global value reference.
Reviewers: Duncan P. N. Exon Smith
Differential Revision: http://reviews.llvm.org/D10671
llvm-svn: 240851
This commit serializes machine basic block operands. The
machine basic block operands use the following syntax:
%bb.<id>[.<name>]
This commit also modifies the YAML representation for the
machine basic blocks - a new, required field 'id' is added
to the MBB YAML mapping.
The id is used to resolve the MBB references to the
actual MBBs. And while the name of the MBB can be
included in a MBB reference, this name isn't used to
resolve MBB references - as it's possible that multiple
MBBs will reference the same BB and thus they will have the
same name. If the name is specified, the parser will verify
that it is equal to the name of the MBB with the specified id.
Reviewers: Duncan P. N. Exon Smith
Differential Revision: http://reviews.llvm.org/D10608
llvm-svn: 240792
This commit serializes the null register machine operands.
It uses the '_' keyword to represent them, but the parser
also allows the '%noreg' named register syntax.
Reviewers: Duncan P. N. Exon Smith
Differential Revision: http://reviews.llvm.org/D10580
llvm-svn: 240558
This commit introduces functionality that's used to serialize machine operands.
Only the physical register operands are serialized by this commit.
Reviewers: Duncan P. N. Exon Smith
Differential Revision: http://reviews.llvm.org/D10525
llvm-svn: 240425
This commit adds a function that tokenizes the string containing
the machine instruction. This commit also adds a struct called
'MIToken' which is used to represent the lexer's tokens.
Reviewers: Sean Silva
Differential Revision: http://reviews.llvm.org/D10521
llvm-svn: 240323
Alex Lorenz