similar to: [LLVMdev] linkage type

There is a description of all the possible linkage types at http://llvm.org/docs/LangRef.html#linkage – does this answer your question? (Basically, an extern_weak resp. ExternalWeakLinkage symbol becomes null instead of being an undefined reference) David On 3/16/11 7:06 PM, Junjie Gu wrote: > What is the difference between WeakAnyLinkage and ExternalWeakLinkage > ? They are defined

So instead of using linkagetypes.weak I should use externalweaklinkage ? Le 11 févr. 2014 18:29, "Reid Kleckner" <rnk at google.com> a écrit : > You'd have to use extern_weak linkage. Clang compiles the foo declaration > to: > $ clang -cc1 -emit-llvm -o - t.c | grep declare.*@foo > declare extern_weak i32 @foo(...) #1 > > > > On Tue, Feb 11, 2014 at

An enumeration for the kinds of linkage for global values. Hi, I'm currently writing a compiler that takes llvm-ir input. I'm a little confused by the following linkage flags: Enumerator: > > ExternalLinkage: Externally visible function > > AvailableExternallyLinkage: Available for inspection, not emission. > > LinkOnceAnyLinkage: Keep one copy of function when linking

As mentioned in the Updated ThinLTO RFC ( http://lists.cs.uiuc.edu/pipermail/llvmdev/2015-May/086211.html), I am sending the symbol linkage and renaming required by ThinLTO as a separate RFC. It is included below. I've also attached the doc in pdf form, since the formatting (especially for the table at the end) may not come through in the copied text below well. Thanks! Teresa ThinLTO

Thanks for your clear answer. Do you know what modifier should I use to declare such weak symbols in my llvm intermediate code? So that it can be compiled to the .o file with the weak attribute ? Le 10 févr. 2014 19:44, "Reid Kleckner" <rnk at google.com> a écrit : > COFF doesn't support the same kind of concept of 'weak' that ELF does. > This is the issue that

Hi, The LLVM language reference doesn't say that extern_weak is illegal for function definitions, but it seems this restriction is enforced in the code in some places: https://github.com/llvm-mirror/llvm/blob/master/lib/AsmParser/LLParser.cpp#L4591 https://github.com/llvm-mirror/llvm/blob/master/lib/CodeGen/AsmPrinter/AsmPrinter.cpp#L327 However it is possible to create a bitcode file

Rafael, did you ever get a chance to look at this? -- Sean Silva On Thu, Feb 23, 2017 at 1:14 AM, Sean Silva <chisophugis at gmail.com> wrote: > > > On Wed, Feb 22, 2017 at 6:14 AM, Rafael Avila de Espindola < > rafael.espindola at gmail.com> wrote: > >> Sean Silva <chisophugis at gmail.com> writes: >> >> When __libc_start_main is hidden, it

Sean Silva <chisophugis at gmail.com> writes: >> When __libc_start_main is hidden, it doesn't end up in the dynamic symbol >> table and so we use the default DynsymIndex of 0. >> > > > I think BFD is doing the right thing. The `extern_weak hidden` is resolved > to null since by virtue of being hidden it doesn't refer to the function in > libc.so (and

I noticed that AsmPrinter::EmitLinkage doesn't handle ExternalWeakLinkage. Is that an oversight or is something deeper going on? -Dave

Hi Chris, Thanks. I will see what I can do for this. Junjie On Wed, May 19, 2010 at 3:45 PM, Chris Lattner <clattner at apple.com> wrote: > > On May 19, 2010, at 2:38 PM, Junjie Gu wrote: > >> Many compilers support per-loop pragma, such as loop unrolling (ie >> #pragma unroll=2).  Is there any LLVM project/effort going on >> in this area ? What is the expected

I'd like to add a pragma support in llvm. I am thinking about using a llvm intrinsic to represent each pragma, such as llvm.pragma (metadata, ...) where metadata describes a pragma. So if an application has: #pragma p1 .. #pragma p2... for (...) The llvm IR would be llvm.pragma (metadata..) // for p1 llvm.pragma (metadata..) // for p2 llvm IR for "for

I got a UPS Sola Basic but it is not working, I'm providing the details. I hope that someone can help me to get it working. Please let me know if there is some other information that I should provide :) OS name and version Ubuntu 12.04 $ uname -a Linux olimpo 3.8.0-29-generic #42~precise1-Ubuntu SMP Wed Aug 14 16:19:23 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux Exact NUT version, 2.7.1

On Tue, Jun 1, 2010 at 5:42 PM, Junjie Gu <jgu222 at gmail.com> wrote: > Any suggestions/ideas ? IIUC, Chris suggested something like following ... header: br i1 %x, label %then, %label endif then: ... br i1 %y, label %loop_exit, label %header, !loop_pragma !1 endif: ... br i1 %z, label %loop_exit, label %header, !loop_pragma !2 loop_exit: ret i32 1 Where !1 and !2 are the

Many compilers support per-loop pragma, such as loop unrolling (ie #pragma unroll=2). Is there any LLVM project/effort going on in this area ? What is the expected way for implementing per-loop pragma, or general pragma ? Suggestions/comments ? Thanks Junjie

I have a MDNode, and one of its operand is an int. I'd like to assign a new int value to that operand during the llvm optimization. What is the right way to do this ? (There is no setOperand() with MDNode class.) Junjie

I have TOT of llvm and it builds 64-bit without issues on my 64-bit ubuntu. My question is how to build 32-bit llvm on my 64-bit ubuntu ? I've not found any configure options to specify that. Thanks Junjie

Hi there, I'd like to plot some maps. Is it possible for me to use SAS map data in R? Thank you. Best, Junjie _________________________________________________________________ your life. [[alternative HTML version deleted]]

Thanks for comments/suggestions. Yes, attaching metadata to instructions will be good choices for many cases. But for loops, attaching metadata to back-edges requires that the front end to build loops, which is an additional task for the front end. And this task is really a backend's job, not the front end's. If the only concern is that it is hard for pragma intrinsics to stay with their

Dear R-list, I apologize for my many emails but I think I know how to desctribe my problem differently and more clearly. My question is how to compare linear models with intercept and those without intercept using maximizing adjusted R^2 strategy. Now I do it like the following: > library(leaps) > n=20 > x=matrix(rnorm(n*3),ncol=3) > b=c(1,2,0) > intercept=1 >

On Jul 12, 2010, at 5:27 PM, David Greene wrote: > I noticed that AsmPrinter::EmitLinkage doesn't handle > ExternalWeakLinkage. Is that an oversight or is something > deeper going on? EmitLinkage is never called on external globals. -Chris