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use getRegInfo instead of creating a register info object

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also raise exception if a property is accessed which is not
available on that particular TargetMachine.
This commit is contained in:
anthony cantor 2013-08-23 02:19:43 -06:00 • committed by Siu Kwan Lam
commit 7234b0d200
1 changed files with 25 additions and 6 deletions
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31
llvm/target.py
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@ -194,27 +194,42 @@ class TargetMachine(llvm.Wrapper):
if llvm.version >= (3, 4):
@property
def reg_info(self):
if not getattr(self, '_mri', False):
self._mri = self.target.createMCRegInfo(self.triple)
mri = self._ptr.getRegisterInfo()
if not mri:
raise llvm.LLVMException("no reg info for this machine")
return self._mri
return mri
@property
def subtarget_info(self):
return self._ptr.getSubtargetImpl()
sti = self._ptr.getSubtargetImpl()
if not sti:
raise llvm.LLVMException("no subtarget info for this machine")
return sti
@property
def asm_info(self):
return self._ptr.getMCAsmInfo()
ai = self._ptr.getMCAsmInfo()
if not ai:
raise llvm.LLVMException("no asm info for this machine")
return ai
@property
def instr_info(self):
return self._ptr.getInstrInfo()
ii = self._ptr.getInstrInfo()
if not ii:
raise llvm.LLVMException("no instr info for this machine")
return ii
@property
def instr_analysis(self):
if not getattr(self, '_mia', False):
self._mia = self.target.createMCInstrAnalysis(self.instr_info)
if not self._mia:
raise llvm.LLVMException("no instr analysis for this machine")
return self._mia
@ -222,6 +237,8 @@ class TargetMachine(llvm.Wrapper):
def disassembler(self):
if not getattr(self, '_dasm', False):
self._dasm = self.target.createMCDisassembler(self.subtarget_info)
if not self._dasm:
raise llvm.LLVMException("no disassembler for this machine")
return self._dasm
@ -235,6 +252,8 @@ class TargetMachine(llvm.Wrapper):
self.reg_info,
self.subtarget_info
)
if not self._mip:
raise llvm.LLVMException("no instr printer for this machine")
return self._mip