search for: immediate

...also tried looking in depth at PowerPC but it looks like it doesn't use this approach either. > > -- Sean Silva What’s the reason for trying to handle this in SelectionDAG at all? I would just materialize zero like any other constant, and treat replacing that with the zero register as an immediate folding optimization (e.g. FoldImmediate or another peephole pass) I thought about doing that, but I wasn't sure I could make it work. The issue is that the hardwired registers are actually the only way to write immediates of this register class (the registers are very small, obviously). I...

Hi Kevin, To get some portion of a constant immediate you can use SDNodeXForms to transform constant SDNodes into other values. For a worked example, in the MIPS backend we use this for constant synthesis by materializing the value into a register: (From lib/Target/MipsInstrInfo.td): // Transformation Function - get the lower 16 bits. def LO16 : SD...

Hi all, This seems like a dumb question but while setting up a pattern in TD file, I got stuck on trying to get each half of an immediate as the half-sized type (ie. i64 imm -> pair of i32 imm's). Is there an existing way to do it? I've tried the 'EXTRACT_SUBREG' but that seems to error at the end of scheduling. Looking at Target.td, I'm not sure which opcode is meant for my need. Copying imm to reg would b...

Hi, I'm doing a backend port and I'm having trouble with adds that have negative immediates. My architecture only has instructions for subtracting and adding 8bit immediate values (they will be zero-extended, thus unsigned). Bigger immediates have to be moved in a register first. The problem is: Expressions like "b - 1" result in "add nsw i32 %b, -1" in LLVM IR. They...

Hi everyone, The WebAssembly backend recently had Bug 39448 <https://bugs.llvm.org/show_bug.cgi?id=39448> filed against it because NaN payloads in floating-point immediates are not preserved through compilation on 32-bit builds. I took a look and the corruption takes place when the immediates are converted from APFloats to be stored as native doubles in MCOperand. I assume this bug only appears in 32-bit builds because they are using x87 doubles that happen to not pr...

I have a question about inserting instructions into the LLVM IR. I can insert instructions, but my operands do not have the right type, so it fails an assertion at runtime. I am trying to insert an immediate load instructions, as a means of claiming a new register. Here is what I do: Builder.SetInsertPoint(LLVMBB, I); // The following line looks to me like it would have a chance of loading either // address 5, or else immediate value 5. Unfortunately, it does neither. It compiles // but crashes a...

Hello, the hot key assigned to a MENU BEGIN (via MENU LABEL) doesn't cause the submenu to be entered automatically when MENU IMMEDIATE is used (at previous level). Here's a patch over syslinux 6.03. Patch was tested on Debian. Regards Dany *Sample config* # hot keys: S,1,2 are immediate (screen flash), but not E MENU IMMEDIATE LABEL standard MENU LABEL ^Standard MENU BEGIN MENU LABEL ^Extra LABEL extra1 MENU LABEL ^1....

I'm trying to add intrinsics for the Signal Processing Engine (FPU/vector unit) on some PowerPC cores, but running into a problem. Some of the instructions take an immediate operand, but I can't figure out how to make the intrinsic use an immediate, it just wants to load a register as an argument to the function. Is there any way in the .td file to describe the intrinsic as taking an immediate, or do I need to generate an intermediate instruction identifier? Than...

...last"=>"Last", "id"=>"1061"}, "email"=>"ivan2-hcDgGtZH8xNBDgjK7y7TUQ@public.gmane.org", "timezone"=>"Tbilisi", "public_profile"=>"1", "emails_delivery_period_daily_logs"=>"immediately ", "emails_delivery_period_homework"=>"immediately", "emails_delivery_period_events"=>"immediately", "emails_delivery_period_signups"=>"immediately", "emails_delivery_period_polls"=>"immediately", &qu...

...veloped research/teaching processor, pages 5-8 contain relevant information for targetting it from a new compiler backend, i,e, it is trivially simple with 25 actual instructions. Typo on page 5, operand A is clearly bits 9-5. The general form for instructions is:-- opcode %a, %b, 17bit signed immediate. %b is a source register. %a is typically the source and the destination register for the operation, ie %a = operation %a,%b, immediate. %b and the immediate act like a virtual operand c that is the sum of register b's contents and the immediate value. %b can be omitted if it refers to the...

...lers(expr, warning = function(w) { ....}), that is, to use a custom warning handler. I want this handler to replicate the behavior of the usual handler. I have problems with the mode 'options(warn = 0)' where the warnings are delayed, except if calling 'warning("message", immediate. = TRUE). Indeed, if my custom warning handler manages to delay the display of warning messages, it cannot detect if the argument immediate. = TRUE was use, and thus, it cannot behave consequently. Here is a toy example to illustrate my problem (whole script at the end of this message): >...

I currently have two channel groups in my zapata.conf file. I would like one group to be immediate=yes and the other immediate=no Does not seem to matter which way I go, the first entry in overrides my explicit setting for the second group. I am running * 1.0.9 on FC1 [trunkgroups] ;trunkgroup => 1,24 trunkgroup => 1,48,72 ;spanmap => 1,1,0 spanmap => 2,1,0 spanmap => 3,1,1 sp...

When using a channel bank for analog handsets, you have a couple options in the way you handle transactions involving the analog handsets and origination. With immediate set to no, it appears to me that soon as a digit is pressed after going off-hook, the single digit is taken and processed against the context that the channel is associated with from the configuration in zapata.conf. With immediate set to yes, the extension s in the channel's context is pr...

Ivan, Sorry, no, I wasn't clear enough. Both "op dst_reg,immediate,src_reg" and "op dst_reg,src_reg,immediate" are allowed in the ALU ops. For most instructions these are two different things - e.g. sub a,5,b is different from sub,a,b,5 obviously - but for things like add they just define the same thing. My problem is that LLVM won't allow imme...

...resent you with list of consultants currently available. E-Mail me for below candidate details. My Mail ID : srikanth at codeforce.com Consultant Job Title Total Experience Current Location Availability Action Atrayee Paul Sr. ETL Datastage Developer 7 years Detroit Metro Area Immediate [2]Request Resume Chandra Kolli SAP BASIS/Netweaver Administrator 7+ Atlanta, GA Immediate [3]Request Resume charan enugula SAP PP/PI/VC 7 Atlanta Immediate [4]Request Resume Francis Xavier SAP BIBO 7 Atlanta, GA Immediate [5]Request Resume Krishna Mohan VAVILIKOLANU Sr. Project Mana...

I was trying to do a pattern matching for a rd+imm instruction in my own backend. It looks something like: def: Pat<build_vector v2i16:$src1, v2i16:$src2, (OR (SLLI GPR: $src1,16), GPR:$src2>; OR takes two i32 in registers and SLLI takes one i32 in registers and an immediate. But the immediate '16' does not work here and I tried different ways. May I know if any of you have any idea how to bake an immediate value (16) into the tablegen? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/...

Hi, I'm using asterisk 1.2.7.1 and somehow my iax trunking is getting these problem :S. Sometimes iax acts weird and start to drop calls randomly and give these at the log: May 16 13:44:22 DEBUG[5264] chan_iax2.c: Immediately destroying 6, having received INVAL May 16 13:44:22 DEBUG[5264] chan_iax2.c: Immediately destroying 6, having received INVAL May 16 13:44:22 DEBUG[5264] chan_iax2.c: Immediately destroying 6, having received INVAL May 16 13:44:22 DEBUG[5264] chan_iax2.c: Immediately destroying 6, having recei...

This commit adds support for dadd with an immediate src in gk110 code. The machine-code in question is generated by e.g. nouveau_compiler with the new "Make use of double immediates" patch series when building the piglit glsl-algebraic-double-add.shader_test. This commit changes the output from: 00000010: 001c0001 c38001ff $r0 $r0 $r...

Why is R recognizing dates like this? Chris Buddenhagen, Botany Department, Charles Darwin Research Station, Santa Cruz,Galapagos. Mail: Charles Darwin Foundation, Casilla 17-01-3891 Avenida 6 de Diciembre N36-109 y Pasaje California Quito, ECUADOR ______________________________________________________________________ EL CONTENIDO DE ESTE MENSAJE ES DE ABSOLUTA RESPONSABILIDAD DEL

When immediate is set on a port that is an fxo, what is the meaning of this ? Will it go immediately to the "s" extension of the context when the line first rings, or something else ? I am looking for a way to stop the line ringing two extra times before being answered by the channel bank. (caller i...