search for: langimpl7

...all? I ran a web crawler to find each of the dead links (this may not be exhaustive), and they are as follows: https://llvm.org/docs/TestSuiteMakefileGuide https://llvm.org/docs/doxygen/structLICM.html https://llvm.org/docs/tutorial/LangImpl5.html#for-loop-expression https://llvm.org/docs/tutorial/LangImpl7.html#user-defined-local-variables http://llvm.org/docs/lnt/modindex.html https://llvm.org/docs/tutorial/MyFirstLanguageFrontend/LangImpl6.html#user-defined-unary-operators https://llvm.org/docs/tutorial/MyFirstLanguageFrontend/LangImpl5.html#for-loop-expression https://llvm.org/docs/tutorial/MyFirs...

The Kaleidoscope example here: http://llvm.org/docs/tutorial/LangImpl7.html#adjustments defines a CreateEntryBlockAlloca() helper function that "ensures that the allocas are created in the entry block of the function." It's kid of implied, but I thought I'd ask explicitly: *must* alloca instructions be created in the entry block of a function? - P...

...to find each of the dead links (this may not be > exhaustive), and they are as follows: > https://llvm.org/docs/TestSuiteMakefileGuide > https://llvm.org/docs/doxygen/structLICM.html > https://llvm.org/docs/tutorial/LangImpl5.html#for-loop-expression > https://llvm.org/docs/tutorial/LangImpl7.html#user-defined-local-variables > http://llvm.org/docs/lnt/modindex.html > > https://llvm.org/docs/tutorial/MyFirstLanguageFrontend/LangImpl6.html#user-defined-unary-operators > > https://llvm.org/docs/tutorial/MyFirstLanguageFrontend/LangImpl5.html#for-loop-expression > > ht...

hi, with LLVM 3.1, i am trying to compile toy.cpp from http://llvm.org/docs/tutorial/LangImpl7.html#code. i got the following error: $ clang++ -g toy.cpp `llvm-config --cppflags --ldflags --libs core jit native` -O3 -o toy toy.cpp:4:10: fatal error: 'llvm/IRBuilder.h' file not found #include "llvm/IRBuilder.h" i fixed this by modifying the broken line to: #include &quo...

Okay, so I am on OSX, I am trying to install the LLVM library. Trying to compile their simple example (http://llvm.org/docs/tutorial/LangImpl7.html) I keep on getting a host of errors, the source of which is its not finding any of the included files ( #include "llvm/DerivedTypes.h" #include "llvm/ExecutionEngine/ExecutionEngine.h" #include "llvm/ExecutionEngine/JIT.h" #include "llvm/LLVMContext.h"...

Hi all, I am trying to compile a high-level imperative OOP-like language to the LLVM IR. Do we have any "generic" way of translating a non-SSA form to the LLVM IR's SSA? There are lots of LLVM front-ends now. Do they do such translation individually? or there is some common non-SSA IR that we can translate to, and can be converted to the LLVM IR automatically? I did not find such

...? There are lots of LLVM front-ends now. Do > they do such translation individually? or there is some common non-SSA > IR that we can translate to, and can be converted to the LLVM IR > automatically? I did not find such things from the current LLVM code. See http://llvm.org/docs/tutorial/LangImpl7.html#memory . -Eli

On 3/29/12 11:32 AM, Paul J. Lucas wrote: > The Kaleidoscope example here: > > http://llvm.org/docs/tutorial/LangImpl7.html#adjustments > > defines a CreateEntryBlockAlloca() helper function that "ensures that the allocas are created in the entry block of the function." > > It's kid of implied, but I thought I'd ask explicitly: *must* alloca instructions be created in the entry block o...

...ass is used for SSA construction > and basically removed alloca of the corresponding pointers are just used in > load/stores. > So, is there any restriction that all the alloca should be put in first > basic block? Yes, there is exactly such a restriction; http://llvm.org/docs/tutorial/LangImpl7.html has a good description of using mem2reg for SSA construction. -Eli

Hi, I am using various LLVM optimization passes and I noticed a strange behaviour in Mem2Reg Optimization. These pass is used for SSA construction and basically removed alloca of the corresponding pointers are just used in load/stores. I tried the following .ll file *define i32 @test(i32 %y,i32 %z) { entry: %X = alloca i32 ; type of %X is i32*. %X.0 = add i32 %y ,%z

...ing the Builder interface how does one create the equivalent of stack frames and access variables in the current stack frame or perhaps in the static enclosing scope (assuming functions can be nested)? To create stack variables, you can use the alloca instruction; see http://llvm.org/docs/tutorial/LangImpl7.html#memory . LLVM doesn't directly support nested functions; you'll have to lower them yourself. For example, try something like the following in the LLVM demo page (http://llvm.org/demo/index.cgi) with optimization off: int main(int argc, char **argv) { void a(int x) { if (x == 10) re...

I have been toying around with the LLVM tutorial code and I am trying to deduce what I can from it as a basis for a compiler frontend for a simple language of my own devising (once I understand what I am doing I will probably attempt mapping a more complex language target). I am having some difficulties however understanding how certain things work and I was hoping perhaps someone could help me

...%y, %z >  %1 = mul %0, %y >  %2 = call foo(%0) >  %3 = add %1, %2 > > > Is there a more obvious approach to avoiding "copy instructions"? The recommended approach to generating LLVM IR is simply not to try to generate code in SSA form; see http://llvm.org/docs/tutorial/LangImpl7.html#memory . -Eli -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20110423/f74713b7/attachment.html>

...%y, %z >  %1 = mul %0, %y >  %2 = call foo(%0) >  %3 = add %1, %2 > > > Is there a more obvious approach to avoiding "copy instructions"? The recommended approach to generating LLVM IR is simply not to try to generate code in SSA form; see http://llvm.org/docs/tutorial/LangImpl7.html#memory . -Eli

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

... %2 = call foo(%0) >>  %3 = add %1, %2 >> >> >> Is there a more obvious approach to avoiding "copy instructions"? > > The recommended approach to generating LLVM IR is simply not to try to > generate code in SSA form; see > http://llvm.org/docs/tutorial/LangImpl7.html#memory . > > -Eli > > > _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev > >

This is a simple SSA code generation 101 question. If I follow the IR code generation techniques in the Dragon book the statement x = y + z would translate into something like this in SSA/LLVM %0 = add %y, %z %x = %0 Obviously "copy instructions" like %foo = %bar are senseless in SSA since %foo and %bar are immutably fixed to the same value and there is no need for two aliases

...%returnValue > Broken module found, compilation aborted! > > >From the code I can see all the operands are i1 type, so the 'or' > instructions should be valid. Could some one give me some clues how to fix > this problem? Maybe take a look at http://llvm.org/docs/tutorial/LangImpl7.html ? The simplest way to avoid "Instruction does not dominate all uses!" errors is to avoid having values defined in a different block from the use. -Eli

Le 5 juil. 2013 à 17:48, Arnold Schwaighofer <aschwaighofer at apple.com> a écrit : > > On Jul 5, 2013, at 10:43 AM, Stéphane Letz <letz at grame.fr> wrote >> >> 1) "entry" block is the first block of the function right? > > Yes. OK > >> >> 2) do you mean *all* "alloca" in a function always have to be in the fist entry

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