similar to: [LLVMdev] Compiling Linux Kernel

Hi, I just found -steens-aa and -ds-aa Alias Analysis listed in documents do not exist in my llvm-2.3 code. Both from opt -help and the lib/Analysis. And then I go to download the llvm-2.5 version, there is still no these 2 options. Where are they? Lei -- /****** * Lei Shang * PhD candidate, Computer Science & Engineering, * University of New South Wales, Sydney, Australia, 2052 *

On Thu, Dec 4, 2008 at 7:08 PM, Chris Lattner <clattner at apple.com> wrote: > > On Dec 4, 2008, at 8:58 AM, Villmow, Micah wrote: > > What optimization pass promotes 32 bit math operations to 64 bit operations > so I can disable it? I have code that works fine with optimizations turned > off but fails with it turned on because of this stage. > > > Do you have a

Hi, I've been thinking about how to keep the line number with the llvm transform/Analysis passes. Basically, I agree with Chris's notes ( http://www.nondot.org/sabre/LLVMNotes/DebugInfoImprovements.txt), and I will follow his way to turn on the line number information when optimization enabled. Here is a detailed proposal: 1. Introduction At the time of this writing, LLVM's

On Dec 7, 2007, at 1:43 AM, Wojciech Matyjewicz wrote: > Recently, I was looking into the bug #1227. I wanted to check if > reordering optimization passes could solve it. To start with, I > tried to > reproduce the output of llvm-g++ -O3 using the combination of llvm-g++ > -O0 and opt with the appropriate passes. However, I was unable to. I > use > SVN versions of llvm and

Hi, Recently, I was looking into the bug #1227. I wanted to check if reordering optimization passes could solve it. To start with, I tried to reproduce the output of llvm-g++ -O3 using the combination of llvm-g++ -O0 and opt with the appropriate passes. However, I was unable to. I use SVN versions of llvm and llvm-gcc-4.2. First, I compile example.cpp (attached; taken from the bug #1227) with: $

I've developed a working LLVM back-end (based on LLVM 2.6) for a custom architecture with its own tool chain. This tool chain creates stand-alone programs from a single assembly. We used to use GCC, which supported producing a single machine assembly from multiple source files. I modified Clang to accept the architecture, but discovered that clang-cc (or the Clang Tool subclass inside Clang)

On 9/9/09 3:28 AM, Eli Friedman wrote: > On Wed, Sep 9, 2009 at 12:50 AM, Lei Shang<shang1982 at gmail.com> wrote: > >> Hi, >> >> I just found -steens-aa and -ds-aa Alias Analysis listed in documents do >> not exist in my llvm-2.3 code. Both from opt -help and the lib/Analysis. >> And then I go to download the llvm-2.5 version, there is still no

I was trying the new feature you introduce about printing out the graphs, so I updated my version of llvm/clang/polly synchronizing them to the last version, but I get this error launching clang (also , I recently switched to MacOS X for development): $ clang not_so_simple_loop.c -O3 -Xclang -load -Xclang ${PATH_TO_POLLY_LIB}/LLVMPolly.dylib -mllvm -enable-polly-viewer -mllvm -enable-iv-rewrite

I add also the output of these commands: [hades at artemis examples]$ ./compile_ex.sh super_simple_loop Printing analysis 'Polly - Detect Scops in functions' for function 'main': [hades at artemis examples]$ modifying it in : #include <stdio.h> int main() { int A[1024]; int j, k=10; for (j = 0; j < 1024; j++) A[j] = k;

On 10/22/2011 08:41 AM, Marcello Maggioni wrote: > I was trying the new feature you introduce about printing out the > graphs, so I updated my version of llvm/clang/polly synchronizing them > to the last version, but I get this error launching clang (also , I > recently switched to MacOS X for development): > > $ clang not_so_simple_loop.c -O3 -Xclang -load -Xclang >

On 10/07/2011 03:43 PM, Marcello Maggioni wrote: > 2011/10/7 Marcello Maggioni<hayarms at gmail.com>: >> Hi, >> >> for example this loop: >> >> #include<stdio.h> >> >> int main() >> { >> int A[1024]; >> int j, k=10; >> for (j = 1; j< 1024; j++) >> A[j] =

Hi all, I encountered an error while compiling Linux kernel 5.3 to IR. My LLVM version is 9.0.0 release. This error said "invalid operand for inline asm constraint 'i'" in arch/x86/include/asm/jump_table.h. The source code is static __always_inline bool arch_static_branch(struct static_key *key, bool branch) { asm_volatile_goto("1:" ".byte "

On Wed, Sep 9, 2009 at 12:50 AM, Lei Shang<shang1982 at gmail.com> wrote: > Hi, > >    I just found -steens-aa and -ds-aa Alias Analysis listed in documents do > not exist in my llvm-2.3 code. Both from opt -help and the lib/Analysis. > And then I go to download the llvm-2.5 version, there is still no these 2 > options. Where are they?

On Wed, Sep 9, 2009 at 11:49 PM, Mai, Haohui <haohui.mai at gmail.com> wrote: > On 9/9/09 3:28 AM, Eli Friedman wrote: >> On Wed, Sep 9, 2009 at 12:50 AM, Lei Shang<shang1982 at gmail.com>  wrote: >> >>> Hi, >>> >>>     I just found -steens-aa and -ds-aa Alias Analysis listed in documents do >>> not exist in my llvm-2.3 code. Both from

I think I see what's going on, and I agree it looks like a bug. It was too much to hope that later passes weren't going to mess with the PUSH instruction. :( While I was trying to reproduce your problem, I think I found another one that looks like this: $ clang -S -O2 -m32 -mregparm=3 -mretpoline spill_across_rp.cpp -o - | grep _retpoline_push -B2 ... movl %eax, 8(%esp)

Hi Tobias, thanks for the answer. I'll try to give a look to the code you pointed me to , and I'll try to make the modification myself. I'm new to LLVM and Polly, but the code of both seem clean and understandable, so I hope to be able to do it myself. In case I'll ask here for support :) Marcello 2011/10/1 Tobias Grosser <tobias at grosser.es>: > On 10/01/2011 03:26

Tobias, Thanks for taking the time to summarize all this. It's a great writeup. I'm moving the thread to llvm-dev. My responses below. On May 21, 2012, at 5:06 AM, Tobias Grosser <tobias at grosser.es> wrote: > First of all some information about the RegionInfo pass: > > ======================================================================= > The very first paper I

instcombine doesn't seem to be doing it. From my testing it seems to only occur when I use -indvars after a long string of commands. For example: llvm-as < test_fc_27.ll | opt -preverify -domtree -verify -lowersetjmp -raiseallocs -simplifycfg -domtree -domfrontier -mem2reg -globalopt -globaldce -ipconstprop -deadargelim -instcombine -simplifycfg -ba siccg -prune-eh -inline

On Wed, Jul 13, 2016 at 12:25 AM Sean Silva <chisophugis at gmail.com> wrote: > On Tue, Jul 12, 2016 at 11:39 PM, Chandler Carruth <chandlerc at gmail.com> > wrote: > >> On Tue, Jul 12, 2016 at 11:34 PM Sean Silva <chisophugis at gmail.com> >> wrote: >> >>> On Tue, Jul 12, 2016 at 11:32 PM, Xinliang David Li <davidxl at google.com>

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