similar to: [LLVMdev] CodeGen instructions and patterns

Hi Omer, On Feb 24, 2012, at 8:46 AM, محمد ﻋﻤﺮ ﺩﻫﻠﻮﻯ <omerbeg at gmail.com> wrote: > Is there a generic function that gives the machine instructions and their patterns given in the .td files of a backend specification ? > or a subset which match a certain opcode ? I'm not aware of any dump utility functions to display that information concisely. I agree such a thing would be

After enabling assertions and recompilation I still get this error. ~/bin/llvm$ llc -view-isel-dags t3.bc llc: Unknown command line argument '-view-isel-dags'. Try: 'llc -help' llc: Did you mean '-fast-isel-abort'? and I see the view-edge bundles option but get the following error. ~/bin/llvm$ llc -view-edge-bundles t3.bc Writing

On 15/08/11 13:12, محمد ﻋﻤﺮ ﺩﻫﻠﻮﻯ wrote: > How do I enable the assertions when building ? > I am using 2.9, the current version, and when I use the standard build llc does > not give me the view-*-dags options. Configure with --enable-assertions Ciao, Duncan. > > -Omer > > On Sat, Aug 13, 2011 at 1:50 AM, Duncan Sands <baldrick at free.fr > <mailto:baldrick at

(readding cc llvmdev) On Feb 24, 2012, at 11:46 AM, محمد ﻋﻤﺮ ﺩﻫﻠﻮﻯ <omerbeg at gmail.com> wrote: > > > otherwise how are the machine instructions being accessed/matched for instruction selection ? > > > > Have a look at the code in SelectionDAGISel. > > > I am looking at the ARM backend. > In specific, the instruction selection. > In Select(N),

I have a few questions about matching in the selector. 1. Why does the size of the MatcherTable greatly exceed the number of patterns defined in the target description? If it simply contains all the variants of the patterns then what is the encoding of these entries ? 2. Is there a simple way to extract the root opcode of a pattern from the MatcherTable entry ? 3. I believe the entries in the

On 13/08/11 00:01, Cameron Zwarich wrote: > They do work if you have GraphViz binaries in your path when you configure LLVM. I think you also need to build with assertions enabled. Ciao, Duncan. > > Cameron > > On Aug 12, 2011, at 2:59 PM, محمد ﻋﻤﺮ ﺩﻫﻠﻮﻯ wrote: > >> I need help with visualizing graphs before and after instruction selection. >> The llc options

I need help with visualizing graphs before and after instruction selection. The llc options listed in the docs do not work as specified. -Omer 2011/8/8 Rafael Ávila de Espíndola <rafael.espindola at gmail.com> > On 08/06/2011 02:40 AM, Sanjoy Das wrote: > > Hi! > > > > I have a DAG (attached), which, according to me, should result in the > > code for

How do I enable the assertions when building ? I am using 2.9, the current version, and when I use the standard build llc does not give me the view-*-dags options. -Omer On Sat, Aug 13, 2011 at 1:50 AM, Duncan Sands <baldrick at free.fr> wrote: > On 13/08/11 00:01, Cameron Zwarich wrote: > > They do work if you have GraphViz binaries in your path when you > configure LLVM.

They do work if you have GraphViz binaries in your path when you configure LLVM. Cameron On Aug 12, 2011, at 2:59 PM, محمد ﻋﻤﺮ ﺩﻫﻠﻮﻯ wrote: > I need help with visualizing graphs before and after instruction selection. > The llc options listed in the docs do not work as specified. > > -Omer > > 2011/8/8 Rafael Ávila de Espíndola <rafael.espindola at gmail.com> > On

In llc I can change the selector using -fast-isel. how can I do this in clang ? -Omer -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20120411/3efacf9e/attachment.html>

what do you mean by "more optimal instructions" ? -omer On Wed, Nov 16, 2011 at 1:28 AM, Joe Abbey <jabbey at arxan.com> wrote: > I've done a first pass over the past 6 months of changes and some notable > things stood out: > > * The ARM backend has reworked Set Jump Long Jump EH Lowering. > * The ARM backend includes improved support for Cortex-M > *

I've done a first pass over the past 6 months of changes and some notable things stood out: * The ARM backend has reworked Set Jump Long Jump EH Lowering. * The ARM backend includes improved support for Cortex-M * The ARM backend adds parsing and encoding ARM/Thumb/Thumb2 assembly There are also many many code generation improvements which select more optimal instructions. Those seemed

Hi! Does anyone know hot to set number of digits to be printed in function 'paste'? Tine Mla?

On Sun, 17 Sep 2006, [UTF-8] Rafael Esp?ndola wrote: > The ARM has a multiply instruction of the form Rd=Rm*Rs where Rd != Rm. > How can I add this requirement to the instruction definition? Unfortunately there is currently no great way to do this. Some options are: 1. Pin one operand to a specific register, one that isn't allocated (e.g. R12). Use copyto/fromreg to get to it.

Hi I want to port speex to my pocket PC iPAQ1945 which has a Samsung processor 2410, an ARM9-based processor. I would like to write the specific optimized code for this chip. I had some experience at DSP chip and fixed-point coding but know nothing about embedded system and ARM. Could someone tell me some hint how to write optimized code for this pocket PC. If you can give me some links that will

The ARM has a multiply instruction of the form Rd=Rm*Rs where Rd != Rm. How can I add this requirement to the instruction definition? Thanks, Rafael

I stumbled on the fact that text_area_tag does not HTML escape its content by default. For example: text_area_tag "body", "</textarea><script>alert(''xss'');<script>" If you try that, you''ll see that the content is inserted literally. Considering the fact that the tag helpers all encode their attribute values by default, does this

I think I found a bug in lib/CodeGen/README.txt: The register "lr" should be "r4" in instruction "str lr, [sp, #+52]" of : and then "merge" mul and mov: > mul r4, r4, lr > str lr, [sp, #+52] > ldr lr, [r1, #+32] > sxth r3, r3 > mla r4, r3, lr, r4 -------------- next part -------------- An HTML

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