similar to: [LLVMdev] Address mode pointer size support

> Is there any way currently in LLVM to specify different pointer sizes for > different address spaces? No. Ciao, Duncan.

> -----Original Message----- > From: Eli Friedman [mailto:eli.friedman at gmail.com] > Sent: Friday, August 17, 2012 3:16 PM > To: Villmow, Micah > Cc: LLVM Developers Mailing List > Subject: Re: [LLVMdev] RFC: Supporting different sized address space > arithmetic > > On Fri, Aug 17, 2012 at 2:53 PM, Villmow, Micah <Micah.Villmow at amd.com> > wrote: > >

Most likely this code was added before getSExtOrTruncate was added, but not 100% sure. It seems to assume that no pointer can be more than 64bits in size. > -----Original Message----- > From: Hal Finkel [mailto:hfinkel at anl.gov] > Sent: Friday, August 24, 2012 4:27 PM > To: Villmow, Micah > Cc: LLVM Developers Mail > Subject: Re: [LLVMdev] FW: RFC: Supporting different sized

> -----Original Message----- > From: Dan Gohman [mailto:gohman at apple.com] > Sent: Tuesday, September 11, 2012 1:28 PM > To: Villmow, Micah > Cc: llvmdev at cs.uiuc.edu > Subject: Re: [LLVMdev] Proposal: New IR instruction for casting between > address spaces > > On Sep 11, 2012, at 1:03 PM, "Villmow, Micah" <Micah.Villmow at amd.com> > wrote: >

> -----Original Message----- > From: Villmow, Micah > Sent: Friday, August 24, 2012 2:56 PM > To: 'Eli Friedman' > Cc: LLVM Developers Mailing List > Subject: RE: [LLVMdev] RFC: Supporting different sized address space > arithmetic > > Eli, > There is a patch that implements the beginning what I think is the > correct approach to support the backend

Micah, There are a number of variable names in this patch that don't follow the naming convention (which specifies that they should start with an uppercase letter). > if (PtrBits < 64) > - OffsVal = DAG.getNode(ISD::TRUNCATE, getCurDebugLoc(), > - TLI.getPointerTy(), > + OffsVal = DAG.getNode(ISD::TRUNCATE,

> -----Original Message----- > From: Mon P Wang [mailto:monping at apple.com] > Sent: Wednesday, September 12, 2012 1:12 PM > To: Villmow, Micah > Cc: Dan Gohman; llvmdev at cs.uiuc.edu > Subject: Re: [LLVMdev] Proposal: New IR instruction for casting between > address spaces > > Hi, > > On Sep 11, 2012, at 2:30 PM, Villmow, Micah wrote: > > > > >

On Mon, 27 Aug 2012 15:25:50 +0000 "Villmow, Micah" <Micah.Villmow at amd.com> wrote: > Most likely this code was added before getSExtOrTruncate was added, > but not 100% sure. It seems to assume that no pointer can be more > than 64bits in size. Does LLVM generally support pointers of greater than 64 bits? -Hal > > > -----Original Message----- > >

On Fri, Aug 17, 2012 at 2:53 PM, Villmow, Micah <Micah.Villmow at amd.com> wrote: > Currently LLVM only supports address calculations for a single address > space(the default). This is problematic when the device pointer type is > 32/64bits, but there are small distinct memories that only have 16 bits of > addressing(think GPU's with small software controlled memory

Currently LLVM only supports address calculations for a single address space(the default). This is problematic when the device pointer type is 32/64bits, but there are small distinct memories that only have 16 bits of addressing(think GPU's with small software controlled memory segments). I am proposing a modification to a few API's in SelectionDAG that I believe will fix this problem.

On Thu, Aug 30, 2012 at 3:27 PM, Villmow, Micah <Micah.Villmow at amd.com> wrote: > > >> -----Original Message----- >> From: Eli Friedman [mailto:eli.friedman at gmail.com] >> Sent: Thursday, August 30, 2012 3:03 PM >> To: Villmow, Micah >> Cc: LLVM Developers Mail >> Subject: Re: [LLVMdev] FW: RFC: Supporting different sized address space >>

From: Villmow, Micah Sent: Tuesday, September 11, 2012 12:51 PM To: llvm-commits at cs.uiuc.edu Subject: Proposal: New IR instruction for casting between address spaces Problem: Bit casting between pointers of different address spaces only works if all address space pointers are the same size. With changes from email chain [1][2], support for different pointer sizes breaks the bitcast instruction

Hi, On Sep 11, 2012, at 2:30 PM, Villmow, Micah wrote: > > >> -----Original Message----- >> From: Dan Gohman [mailto:gohman at apple.com] >> Sent: Tuesday, September 11, 2012 1:28 PM >> To: Villmow, Micah >> Cc: llvmdev at cs.uiuc.edu >> Subject: Re: [LLVMdev] Proposal: New IR instruction for casting between >> address spaces >> >>

On Sep 11, 2012, at 1:03 PM, "Villmow, Micah" <Micah.Villmow at amd.com> wrote: > > From: Villmow, Micah > Sent: Tuesday, September 11, 2012 12:51 PM > To: llvm-commits at cs.uiuc.edu > Subject: Proposal: New IR instruction for casting between address spaces > > Problem: > Bit casting between pointers of different address spaces only works if all

On Sep 12, 2012, at 2:45 PM, "Villmow, Micah" <Micah.Villmow at amd.com> wrote: > > >> -----Original Message----- >> From: Mon P Wang [mailto:monping at apple.com] >> Sent: Wednesday, September 12, 2012 1:12 PM >> To: Villmow, Micah >> Cc: Dan Gohman; llvmdev at cs.uiuc.edu >> Subject: Re: [LLVMdev] Proposal: New IR instruction for

> -----Original Message----- > From: Eli Friedman [mailto:eli.friedman at gmail.com] > Sent: Thursday, August 30, 2012 3:03 PM > To: Villmow, Micah > Cc: LLVM Developers Mail > Subject: Re: [LLVMdev] FW: RFC: Supporting different sized address space > arithmetic > > On Thu, Aug 30, 2012 at 2:38 PM, Villmow, Micah <Micah.Villmow at amd.com> > wrote: > >

> -----Original Message----- > From: Mon Ping Wang [mailto:monping at apple.com] > Sent: Thursday, September 13, 2012 1:55 AM > To: Villmow, Micah > Cc: llvmdev at cs.uiuc.edu > Subject: Re: [LLVMdev] Proposal: New IR instruction for casting between > address spaces > > > On Sep 12, 2012, at 2:45 PM, "Villmow, Micah" <Micah.Villmow at amd.com> >

Doh! hit send too soon, patch attached. > -----Original Message----- > From: Villmow, Micah > Sent: Thursday, September 06, 2012 9:17 AM > To: 'Eli Friedman' > Cc: LLVM Developers Mail > Subject: RE: [LLVMdev] FW: RFC: Supporting different sized address space > arithmetic > > Eli, > Here is the first of many patches that adds support for specifying >

If I don't bring in TargetData, then there is no way for me to verify the address space size in the verifier or in the auto-upgrade mechanisms. > -----Original Message----- > From: Eli Friedman [mailto:eli.friedman at gmail.com] > Sent: Thursday, September 20, 2012 2:32 PM > To: Villmow, Micah > Cc: Chris Lattner; Mon Ping Wang; llvm-commits at cs.uiuc.edu; > llvmdev at

Ping! > -----Original Message----- > From: Villmow, Micah > Sent: Tuesday, September 18, 2012 4:12 PM > To: 'Chris Lattner'; 'Mon Ping Wang' > Cc: 'llvm-commits at cs.uiuc.edu'; 'llvmdev at cs.uiuc.edu' > Subject: RE: [LLVMdev] Proposal: New IR instruction for casting between > address spaces > > Resending since I got an error. >