search for: analyzephysreg

Ø It would be good to check that this maps correctly onto computeRegisterLiveness: there's a bug in analyzePhysReg and I think other parts of the code base are slightly wrong or will become slightly wrong as well :-( Yes, I agree. I will also have to look into all other users of analyzePhysReg as well. There are surprisingly few users of either computeRegisterLiveness or analyzePhysReg. The other thing that...

...gt;-----Original Message----- >From: llvm-dev [mailto:llvm-dev-bounces at lists.llvm.org] On Behalf Of >Sanjoy Das via llvm-dev >Sent: Thursday, December 03, 2015 11:16 PM >To: Quentin Colombet <qcolombet at apple.com> >Cc: llvm-dev at lists.llvm.org >Subject: Re: [llvm-dev] analyzePhysReg question > >I think this is related to PR25033: >https://llvm.org/bugs/show_bug.cgi?id=25033#c9 Yes, I agree this is very closely related. The code referenced in that PR if (Analysis.Kills || Analysis.Clobbers) // Register killed, so isn't live. return LQR_Dead; is i...

I am looking at results from analyzePhysReg, and am getting results a little different than I expected for x86. The call to this is coming from this code in llvm::MachineBasicBlock::computeRegisterLiveness 1163 MachineOperandIteratorBase::PhysRegInfo Analysis = 1164 ConstMIOperands(I).analyzePhysReg(Reg, TRI); The instr...

>-----Original Message----- >From: Quentin Colombet [mailto:qcolombet at apple.com] >Sent: Thursday, December 03, 2015 4:43 PM >To: Smith, Kevin B <kevin.b.smith at intel.com> >Cc: llvm-dev at lists.llvm.org >Subject: Re: [llvm-dev] analyzePhysReg question > > >> On Dec 3, 2015, at 4:35 PM, Smith, Kevin B via llvm-dev <llvm- >dev at lists.llvm.org> wrote: >> >> I am looking at results from analyzePhysReg, and am getting results a little >different than I expected for x86. >> >> The call to this...

...ple.com>] >>> Sent: Thursday, December 03, 2015 4:43 PM >>> To: Smith, Kevin B <kevin.b.smith at intel.com <mailto:kevin.b.smith at intel.com>> >>> Cc: llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org> >>> Subject: Re: [llvm-dev] analyzePhysReg question >>> >>> >>>> On Dec 3, 2015, at 4:35 PM, Smith, Kevin B via llvm-dev <llvm- >>> dev at lists.llvm.org <mailto:dev at lists.llvm.org>> wrote: >>>> >>>> I am looking at results from analyzePhysReg, and am getting r...