search for: llvm_i1_ti

Hello. I come back to this thread. But I want to ask a slightly different question. Is there a way to have LLVM IR language intrinsics that are given at construction time a string that is written at assembly generation time as it is? (so, basically having placeholders of strings in LLVM that remain untouched until the end, including code generation time.) More exactly, I would

Masked load/store are overloaded intrinsics, the only generic type is the type of the value being loaded/stored. The signature of the intrinsic is generated based on this type. The type of the pointer argument is generated as a pointer to the return type with default addrspace. E.g.: declare <8 x i32> @llvm.masked.load.v8i32(<8 x i32>*, i32, <8 x i1>, <8 x i32>) The

Hi all, I'm playing with intrinsics and I was wondering how to lower an intrinsic that should return, for example, an int1? More precisely, how to return the value when working with MachineInst? First, I have defined an instrinsic in "Intrinsics.td": _def int_antivm : Intrinsic<[llvm_i1_ty], [], [], "llvm.antivm">;_ Then I want to lower it in the X86 backend,

Hi Alex, You might find it useful to look at how lib/Target/PowerPC/PPCCTRLoops.cpp works. -Hal ----- Original Message ----- > From: "Alex Susu via llvm-dev" <llvm-dev at lists.llvm.org> > To: "llvm-dev" <llvm-dev at lists.llvm.org> > Sent: Monday, May 30, 2016 5:09:37 PM > Subject: [llvm-dev] Back end with special loop instructions > > Hello.

I have defined the intrinsic as * def int_loop: Intrinsic<[],[llvm_i8_ty, llvm_empty_ty],[]>;* and also got the Codegen backend support in Instructioninfo.td file. Then created a .ll file to test it. The .ll file is like this *declare void @llvm.loop(i8, label)define void @fn() nounwind readnone {entry: ..... ..... call void @llvm.loop(i8 10, label %entry) ret void}* But

Hello. I'm writing a back end for my research SIMD processor that has an assembly language that is blocked structured, with one-level loops. An example program with my assembly language: REPEAT_X_TIMES(Param2) R0 = LS[offset_A]; END_REPEAT; The LLVM code somewhat equivalent to the above ASM program is: vector.body: %index = phi i64 [

On Mon, 14 Apr 2008, Edward Lee wrote: > On Mon, Apr 14, 2008 at 6:00 PM, Chris Lattner <sabre at nondot.org> wrote: >> You can change the code generator or not run the block layout pass. > Ok thanks for the help. I'll try finding where to twiddle this. > Perhaps explicitly check if the branch's condition is the call to my > intrinsic. > > Or is there another

On Mon, Apr 14, 2008 at 5:02 PM, Bill Wendling <isanbard at gmail.com> wrote: > Then that flow would be explicit in the CFG, right? Then %F wouldn't > be dead, I'm assuming. Right. That's why I used a conditional branch after the intrinsic, but it sounds like the CFG simplification pass after lowering will optimize it away and no longer have the flow explicit. (To the

> Please start a thread on llvmdev about this functionality, and outline what other intrinsics will have to change to add non-8-bit byte support. Well, memset is the only we have seen so far (our back-end is ~50% finished for an initial release). We have our own front-end as well (we are currently not using the clang front-end), and currently don't use many llvm intrinsics (only

This is for BPF output. BPF program output bytes to perf through a tracepoint. For decoding such data, we need a way to describe the format of the buffer. This patch is a try which gives each variable a unique number by introducing a new intrinsic 'llvm.typeid.for'. At the bottom is an example of using that intrinsic and the result of $ clang -target bpf -O2 -c -S ./test_typeid.c

On 2015/8/12 12:57, Alexei Starovoitov wrote: > On Wed, Aug 12, 2015 at 10:34:43AM +0800, Wangnan (F) via llvm-dev wrote: >> Think about a program like this: >> >> struct strA { int a; } >> struct strB { int b; } >> int func() { >> struct strA a; >> struct strB b; >> >> a.a = 1; >> b.b = 2; >>

> On Oct 26, 2014, at 8:22 AM, Hal Finkel <hfinkel at anl.gov> wrote: > > ----- Original Message ----- >> From: "Elena Demikhovsky" <elena.demikhovsky at intel.com> >> To: "Hal Finkel" <hfinkel at anl.gov> >> Cc: llvmdev at cs.uiuc.edu >> Sent: Sunday, October 26, 2014 10:17:49 AM >> Subject: RE: [LLVMdev] Masked vector

Hi, Arm have recently announced the v8.1-M architecture specification for our next generation microcontrollers. The architecture includes vector extensions (MVE) and support for low-overhead branches (LoB), which can be thought of a style of hardware loop. Hardware loops aren't new to LLVM, other backends (at least Hexagon and PPC that I know of) also include support. These implementations