similar to: Addressing TableGen's error "Ran out of lanemask bits" in order to use more than 32 subregisters per register

Hello. I've managed to patch the various files from the back end related to lanemask - now I have 1024-bit long lanemask. But now I get the following error when giving make llc: <<error:unhandled vector type width in intrinsic!>> This error comes from this file https://github.com/llvm-mirror/llvm/blob/master/utils/TableGen/IntrinsicEmitter.cpp, comes from the

You seem to be using old LLVM sources---changing this many files for supporting a different width LaneBitmask is no longer necessary. Also, boost is not a current requirement for building LLVM and it's unlikely that requiring it for that purpose alone is justified. -Krzysztof On 7/28/2017 6:30 AM, Alex Susu via llvm-dev wrote: > Hello. > I come back to this older thread.

Hello. I come back to this older thread. As I've said before, I managed to patch the various files from the back end related to lanemask in order to support at most 1024 vector lanes. For this I am using a 1024-bit long lanemask of type uint1024_t from boost::multiprecision, instead of uint32_t. For this I changed the following LLVM source files:

This error indicates that its trying to create a lane mask larger than 32 bits. Without seeing all of your subregister definitions I can't tell if that's correct of if there's something wrong with your register definitions. If it is correct then you need to change all the associated LaneMask code in CodeGenRegisters.cpp, include/llvm/MC/LaneBitMask.h and probably elsewhere to use a

Thank You. I have replaced all the occurrences of unsigned with uint64_t in Lanemask.h and in all other related files like codegenregisters.cpp, codegenregisters.h, MIParser.cpp etc... Also i changed Log2_32 to Log2_64 and replaced 4 with 8 in codegenregisters.cpp, but still getting the same error: error:Ran out of lanemask bits to represent subregister

As you mentioned i changed 32 to 64 but now some new errors come which require to change unsigned to uint64_t in mentioned files. i have changed in mentioned files but still errors come to change in other files.. What to do? On Thu, Jul 20, 2017 at 12:08 AM, Craig Topper <craig.topper at gmail.com> wrote: > Did you change the hardcoded 32 right before the line that prints that >

please tell me how to solve this lanemask bits issue? how to increase lanemask bits? On Fri, Jul 14, 2017 at 8:33 PM, hameeza ahmed <hahmed2305 at gmail.com> wrote: > > Hello, > i am trying to construct a register of size 65536 bit by combining 2 > registers of 32768 bits. both the 32768 bit registers are different so i > have to use the following method > > let

Do your 32768 registers also have sub registers? I can't tell you exactly what to change. I'm not familiar with the code. I would just be running grep or something. ~Craig On Fri, Jul 14, 2017 at 10:23 AM, hameeza ahmed <hahmed2305 at gmail.com> wrote: > Thank you so much. I think there is no issue with my definitions since i > have to use larger registers i.e 65536 bit

Hello, Mr. krzysztof I have seen similar question asked by you on llvm group. Could you please help me here to address this issue. i am trying to construct a register of size 65536 bit by combining 2 registers of 32768 bits. both the 32768 bit registers are different so i have to use the following method let SubRegIndices = [sub_32768bit, sub_32768bit_hi], CoveredBySubRegs = 1 in but i am

You are right. Regarding lanes i can comment only when the other things run fine. Here I am stuck with unsigned vs uint64_t. it looks as if i need to replace each occurrence of unsigned with uint64_t. Should i do it for complete llvm folder or codegen only?? i am continuously getting such errors which require changing unsigned with uint64_t. What to do now??? On Thu, Jul 20, 2017 at 1:03 AM,

What about the static asserts protecting a Log call and another in the parser? On Wed, Jul 19, 2017 at 2:26 PM Krzysztof Parzyszek <kparzysz at codeaurora.org> wrote: > On 7/19/2017 4:18 PM, Craig Topper wrote: > > LaneMask isn't as self contained as it should be. 64 bits is enough > > here. The problem is accidental leaking of the current size. > > > > For

LaneMask isn't as self contained as it should be. 64 bits is enough here. The problem is accidental leaking of the current size. For example there was a hard coded compare with 32 in tablegen until I fixed it recently. On Wed, Jul 19, 2017 at 1:36 PM Krzysztof Parzyszek <kparzysz at codeaurora.org> wrote: > LaneBitmask should be self-contained. If 64 bits aren't enough, there

I have made changes in 3 files: LaneBitmask.h, codegenregisters.cpp and miparser.cpp. files are attached here. Now i am getting following errors. which means registerinfo.inc file is not generated successfully. /PIM/lib/Target/X86/MCTargetDesc/X86BaseInfo.h:733:24: error: no member named 'XMM8' in namespace 'llvm::X86' if ((RegNo >= X86::XMM8 && RegNo <=

Hello, i am trying to construct a register of size 65536 bit by combining 2 registers of 32768 bits. both the 32768 bit registers are different so i have to use the following method let SubRegIndices = [sub_32768bit, sub_32768bit_hi], CoveredBySubRegs = 1 in but i am getting following error.. error:Ran out of lanemask bits to represent subregister

Hello Krzysztof, The R_CASS definition is as follows: class R_CASS<string n, bits<16> Enc, list<Register> subregs = []> : Register<n> { let Namespace = "X86"; let HWEncoding = Enc; let SubRegs = subregs; } On Thu, Jul 20, 2017 at 4:14 AM, Krzysztof Parzyszek < kparzysz at codeaurora.org> wrote: > I tried reproducing the problem, but the file

Yes, the arch is just as you said, something like AMD GPU, but Intel GPU don't have separate register file for 'scalar/vector'. In fact my idea of defining the register tuples was borrowed from SIRegisterInfo.td in AMD GPU. But seems that AMD GPU mainly support i32/i64 register type, while Intel GPU also support byte/short register type. So I have to start defining the registers from

I've been working on patches to improve subregister liveness tracking on llvm and I wanted to inform the llvm community about the overal design/motivation for them. I will send the patches to llvm-commits later today. Greetings Matthias Braun Subregisters in llvm ==================== Some targets can access registers in different ways resulting in wider or narrower accesses. For

Hi, I'm stuck trying to fix a variety of problems that occur with undef subregisters when the register coalescer eliminates identity copies. The fundamental problem is complexity from the fact that undef values are a special case since they don't have an associated VNInfo/Segment unless the value is used across blocks. For example, in this case, %0 has 2 subregisters sub0 and sub1:

Currently it will always spill / restore the whole vreg but only spilling the parts that are actually live would be a nice addition in the future. Looking at r192119': if "mtlo" writes to $LO and sets $HI to an unpredictable value, then it should just have an additional (dead) def operand for $hi, shouldn't it? Greetings Matthias Am 10/8/13, 11:03 AM, schrieb Akira

What I didn't mention in r192119 is that mthi/lo clobbers the other sub-register only if the contents of hi and lo are produced by mult or other arithmetic instructions (div, madd, etc.) It doesn't have this side-effect if it is produced by another mthi/lo. So I don't think making mthi/lo clobber the other half would work. For example, this is an illegal sequence of instructions,