similar to: LLVM IR temporary variable reuse

I meant LLVM registers. Thanks for the correcting me. On 18 March 2016 at 10:42, David Blaikie <dblaikie at gmail.com> wrote: > Question is hard to understand - the registers in LLVM are in Static > Single Assignment form > <https://en.wikipedia.org/wiki/Static_single_assignment_form>, they're > not variables that can be assigned and reassigned values (so the answer

For eg: c=a-b is represented using the following statements in IR: %tmp = load i32, i32* %a, align 4 %tmp1 = load i32, i32* %b, align 4 %sub = sub nsw i32 %tmp, %tmp1 store i32 %sub, i32* %c, align 4 whenever there is a redundant computation of the same, say k=a-b (if the value of *a* and *b* are not changed) the code will be like this: %tmp2 = load i32, i32* %a, align 4 %tmp3 =

Hi, I was trying to create a new *Store* instruction and inserting it to LLVM IR (.ll) file. I found the following constructor in LLVM Manual: StoreInst::StoreInst <http://llvm.org/docs/doxygen/html/classllvm_1_1StoreInst.html#aa2a72f9a51b317f5b4ab8695adf59025> (Value <http://llvm.org/docs/doxygen/html/classllvm_1_1Value.html> * Val, Value

Can anyone recommend a good win32 GUI rsync client? -------------- next part -------------- HTML attachment scrubbed and removed

hi, i am reading LLVM code, focusing on the code generation (backend) part. however, it is still rather tough to understand all the code, so i think i need to improve my background on compiler backend first. any recommendation on good books that introduces all the related techniques used by LLVM: DAG lowering, DAG legalization,instruction selection, scheduling, register allocation, etc... i

I don't think you need any special books. There is nothing complicated going on that is not in a basic compiler book. Mostly you have to understand how they implemented basic things in this framework. Knowing modern C++ (i.e. templates, overloading, etc...) and STL pretty well is more important than knowing about compiler theory in order to understand things. The documentation online

Thanks for reply Chuck. Please excuse me if I'm not supposed to reply to all. Are you saying all PHI nodes are required to include all its predecessor blocks no matter they have input or not? What about successor blocks? Are they optional if they don't provide inputs? BTW, where should I look at to verify this, the mem2reg.cpp & PromoteMemToReg.cpp? Thanks a lot. On Sat, Mar 2, 2013

Processing commands for control@bugs.debian.org: > reassign 368417 xen-hypervisor-3.0.2-1-i386 Bug#368417: xen-hypervisor-3.0-i386: cannot start NetBSD-HEAD Warning: Unknown package 'xen-hypervisor-3.0-i386' Bug reassigned from package `xen-hypervisor-3.0-i386' to `xen-hypervisor-3.0.2-1-i386'. > reassign 380333 xen-hypervisor-3.0.2-1-i386 Bug#380333:

Hi Simon, > I've read over the "LLVM Language Reference Manual" a few times, and > writing some ll code, but i'm stuck at a very basic point. How to > decrement a counter variable ? As Oscar pointed out, you need a phi-node. I read some of the published papers on LLVM before the Language Reference Manual and found them to be of use. You may also find Wikipedia's

Hi, I've read over the "LLVM Language Reference Manual" a few times, and writing some ll code, but i'm stuck at a very basic point. How to decrement a counter variable ? int %count(int %n) { EntryBlock: %cond = seteq int %n, 0 br bool %cond, label %Exit, label %Next Next: ; how to decrement n ? %new_n = sub int %n, 1 br label %EntryBlock Exit: ret int 0 } I guess I

> From: Wei Dang [mailto:jacdang at gmail.com] > Subject: Re: [LLVMdev] Question about method CodeExtractor::severSplitPHINodes > Please excuse me if I'm not supposed to reply to all. You should do reply-all, to make sure the list sees all of the thread. > Are you saying all PHI nodes are required to include all its predecessor blocks > no matter they have input or not?

Hello, I need to move the DC properties of an existing Samba 3 server (PDC as well as file and print services) to a new Samba 4 AD, while keeping the other capabilities (file and print services) intact on the existing Samba 3 system. In some preliminary testing I attempted to follow the "Upgrading on a New Server" section of the classic upgrade howto, however, none of the current users

Hi all, I am very confused with class. I am looking at some weather data which I want to use as explanatory variables in an lm. R has treated these variables as factors (i.e. with different levels), whereas I want them treated as discretely measured continuous variables. So I need to reassign the class of these variables, right? Indeed, doing class(southwest$pressure) (pressure being air

On 7/31/13 4:47 PM, Shuxin Yang wrote: > > On 7/31/13 4:30 PM, Tobias Grosser wrote: >> On 07/30/2013 09:44 PM, Chris Lattner wrote: >>> >>> On Jul 30, 2013, at 10:19 AM, Shuxin Yang <shuxin.llvm at gmail.com> >>> wrote: >>> >>>> The pro for running LICM early is that it may move big redundant >>>> stuff out of loop

Processing commands for control@bugs.debian.org: > reassign 366216 xen-utils-3.0.3-1 Bug#366216: vif-bridge: offlining the interface fails because interface already offline Warning: Unknown package 'xen-utils-3.0' Bug reassigned from package `xen-utils-3.0' to `xen-utils-3.0.3-1'. > reassign 369042 xen-utils-3.0.3-1 Bug#369042: xen-utils-3.0: does not work with 32.bit

I have the following code, which yields instance eval''s the block given: class Foo def bar(&blk) instance_eval &blk end def baz yield end end The effect of this is that self is reassigned: Foo.new.bar do # here, self is the instance of Foo # created by new end But normally self is the object in which Foo.new.bar {...} occurs. Foo.new.baz do

If this is the wrong list, apologies and redirect happily accepted :-) Following an upgrade of my AD joined Ubuntu 8.04LTS / Samba 3.0.28 server to Ubuntu 8.10 / Samba 3.2.3 smbd crashes on all connection attempts from clients. Domain controller is Windows 2008 Enterprise, winbindd appears to be functioning, wbinfo is good, getent is good, although there are several messages referring to

Hi all, Was wondering what is the real benefit of say translating from LLVM's RISC-type instruction set to the x86 which is a more CISC type of design? Especially after emitting said RISC stream from a much higher-level language like say C or C++? I always thought that to efficiently translate logic, as much as possible information has to be retained down the translation chain? Would that not

If you wanted to write a new register allocator, that would be a different story. Then you would do well to read the literature to try and understand about various schemes that have already been invented. No need to reinvent the wheel. Most people doing a port can figure things out by just using their brain and the documentation already at the LLVM web site; but like I said, a good solid

virtnet_rq_free_unused_buf() helper function to free the buffer already exists. Avoid code duplication by reusing existing function. Signed-off-by: Parav Pandit <parav at nvidia.com> --- drivers/net/virtio_net.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index d45e140b6852..c1faaf11fbcd 100644 ---