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Author SHA1 Message Date
Alex Lorenz c8704b02df MIR Parser: Report an error when parsing machine function with an empty body. 
This commit adds a new error which is reported when the MIR Parser encounters
a machine function without any machine basic blocks. The machine verifier
expects that the machine functions have at least one MBB, and this error will
prevent machine functions without MBBs from reaching the machine verifier and
crashing with an assertion.

llvm-svn: 241862
 2015-07-09 21:21:33 +00:00
Alex Lorenz 54565cf02b MIR Serialization: Serialize simple MachineRegisterInfo attributes. 
This commit serializes the 3 scalar boolean attributes from the
MachineRegisterInfo class: IsSSA, TracksRegLiveness, and
TracksSubRegLiveness. These attributes are serialized as part
of the machine function YAML mapping.

Reviewers: Duncan P. N. Exon Smith

Differential Revision: http://reviews.llvm.org/D10618

llvm-svn: 240579
 2015-06-24 19:56:10 +00:00
Alex Lorenz 82a9a7e42c MIR Serialization: Reenable one of the MIRParser tests by reverting r239805. 
The test 'llvm/test/CodeGen/MIR/machine-function.mir' was disabled on 
x86 msc18 in r239805 as it failed. My commit r240054 have fixed the
problem, so this commit reverts the commit that disabled the test as
it should pass now. 

llvm-svn: 240074
 2015-06-18 22:46:27 +00:00
NAKAMURA Takumi f68c7a27f4 Disable llvm/test/CodeGen/MIR/machine-function.mir on x86 msc18 for now. Investigating. 
The emission was as below;

  ---
  name:            foo
  alignment:       31428584
  exposesReturnsTwice: true
  hasInlineAsm:    false
  ...
  ---
  name:            bar
  alignment:       1701667182
  exposesReturnsTwice: false
  hasInlineAsm:    false
  ...
  ---
  name:            func
  alignment:       8
  exposesReturnsTwice: false
  hasInlineAsm:    false
  ...
  ---
  name:            func2
  alignment:       16
  exposesReturnsTwice: true
  hasInlineAsm:    true
  ...

llvm-svn: 239805
 2015-06-16 06:57:35 +00:00
Alex Lorenz 5b5f97537f MIR Serialization: Print and parse simple machine function attributes. 
This commit serializes the simple, scalar attributes from the 
'MachineFunction' class.

Reviewers: Duncan P. N. Exon Smith

Differential Revision: http://reviews.llvm.org/D10449

llvm-svn: 239790
 2015-06-16 00:10:47 +00:00
Alex Lorenz 78d7831b0f MIR Serialization: print and parse machine function names. 
This commit introduces a serializable structure called
'llvm::yaml::MachineFunction' that stores the machine
function's name. This structure will mirror the machine 
function's state in the future.

This commit prints machine functions as YAML documents
containing a YAML mapping that stores the state of a machine
function. This commit also parses the YAML documents
that contain the machine functions.

Reviewers: Duncan P. N. Exon Smith

Differential Revision: http://reviews.llvm.org/D9841

llvm-svn: 238519
 2015-05-28 22:41:12 +00:00