Displaying 20 results from an estimated 10000 matches similar to: "[LLVMdev] LLVM Instruction Scheduling Pass"
2008 Aug 30
0
[LLVMdev] LLVM Instruction Scheduling Pass
On Aug 29, 2008, at 10:43 AM, sanjiv gupta wrote:
> I have two instructions , both have flag dependency onto a common
> instruction. So this forms a closed loop. The instruction scheduler
> asserts saying that the common instruction is already inserted into
> FlaggedNodes list....etc.
A flag value cannot be read by two nods. That's not legal.
>
>
> Where can I get more
2008 Aug 30
1
[LLVMdev] LLVM Instruction Scheduling Pass
On Sat, 2008-08-30 at 00:17 -0700, Evan Cheng wrote:
> On Aug 29, 2008, at 10:43 AM, sanjiv gupta wrote:
>
> > I have two instructions , both have flag dependency onto a common
> > instruction. So this forms a closed loop. The instruction scheduler
> > asserts saying that the common instruction is already inserted into
> > FlaggedNodes list....etc.
>
> A flag
2008 Sep 23
2
[LLVMdev] A question about instruction operands.
> >>>
> >> It's enclosed inside :
> >>
> >> let isTwoAddress = 1 in {
> >> ...
> >> }
> >>
> >> (you'll need to scroll up a fair amount to find this).
> >>
> >>
> > That means, it gets converted to
> > dst = src;
> > dst = dst + 1;
> >
> > Right ?
> >
> > -
2009 Dec 25
1
[LLVMdev] SoftenSetCCOpernads in LegalizeFloatTypes.cpp
On Mon, 2009-10-05 at 16:54 -0700, Eli Friedman wrote:
> On Mon, Oct 5, 2009 at 11:11 AM, Sanjiv Gupta
> <sanjiv.gupta at microchip.com> wrote:
> > Sanjiv Gupta wrote:
> >> Sanjiv Gupta wrote:
> >>
> >>> Duncan Sands wrote:
> >>>
> >>>
> >>>> Hi Sanjiv, I think a lot of the softening code assumes you are
2009 Jun 29
4
[LLVMdev] llvmc for PIC16
Mikhail Glushenkov wrote:
> Hi Sanjiv,
>
> 2009/6/18 Sanjiv Gupta <sanjiv.gupta at microchip.com>:
>
>> Hi Mikhail,
>> Thanks for your wonderful help so far. I have few more questions to ask:
>>
>> How do I modify the driver to pick tools from where the driver itself
>> resides, rather than from the PATH?
>> Do I need to write some C++ code
2009 Oct 05
2
[LLVMdev] SoftenSetCCOpernads in LegalizeFloatTypes.cpp
Sanjiv Gupta wrote:
> Sanjiv Gupta wrote:
>
>> Duncan Sands wrote:
>>
>>
>>> Hi Sanjiv, I think a lot of the softening code assumes you are dealing
>>> with float (32 bits). So it's not just a matter of changing the libcall
>>> return type.
>>>
>>>
>>>
>> Yes, we are dealing with 32-bits
2009 Jul 16
3
[LLVMdev] llvm-ld -disable-opt behavior.
On Wed, 2009-07-15 at 10:37 -0700, Devang Patel wrote:
> On Wed, Jul 15, 2009 at 9:32 AM, sanjiv gupta<sanjiv.gupta at microchip.com> wrote:
> > Consider the example command line below
> >
> > $ llvm-ld -disable-opt hello.bc -l std -o hello.out
> >
> > Why does -disable-opt links in all the bitcode from the libstd.so into
> > hello.out?
>
> ...
2008 Sep 23
2
[LLVMdev] A question about instruction operands.
On Tue, 2008-09-23 at 13:33 +0100, Richard Osborne wrote:
> sanjiv gupta wrote:
> > I have a question:
> > In the pattern below from X86
> >
> > def INC8r : I<0xFE, MRM0r, (outs GR8 :$dst), (ins GR8 :$src),
> > "inc{b}\tdst",
> > [(set GR8:$dst, (add GR8:$src, 1))]>;
> >
> > Since we are emitting only "inc $dst",
2008 Sep 24
0
[LLVMdev] A question about instruction operands.
On Sep 23, 2008, at 9:05 AM, Sanjiv.Gupta at microchip.com wrote:
>>>>>
>>>> It's enclosed inside :
>>>>
>>>> let isTwoAddress = 1 in {
>>>> ...
>>>> }
>>>>
>>>> (you'll need to scroll up a fair amount to find this).
>>>>
>>>>
>>> That means, it gets
2009 Oct 05
0
[LLVMdev] SoftenSetCCOpernads in LegalizeFloatTypes.cpp
On Mon, Oct 5, 2009 at 11:11 AM, Sanjiv Gupta
<sanjiv.gupta at microchip.com> wrote:
> Sanjiv Gupta wrote:
>> Sanjiv Gupta wrote:
>>
>>> Duncan Sands wrote:
>>>
>>>
>>>> Hi Sanjiv, I think a lot of the softening code assumes you are dealing
>>>> with float (32 bits). So it's not just a matter of changing the libcall
2009 Jul 16
0
[LLVMdev] llvm-ld -disable-opt behavior.
On Wed, Jul 15, 2009 at 7:29 PM, sanjiv gupta<sanjiv.gupta at microchip.com> wrote:
> On Wed, 2009-07-15 at 10:37 -0700, Devang Patel wrote:
>> On Wed, Jul 15, 2009 at 9:32 AM, sanjiv gupta<sanjiv.gupta at microchip.com> wrote:
>> > Consider the example command line below
>> >
>> > $ llvm-ld -disable-opt hello.bc -l std -o hello.out
>> >
2009 Jun 16
0
[LLVMdev] Localizing Globals ?
On Tue, Jun 16, 2009 at 2:35 AM, Sanjiv Gupta<sanjiv.gupta at microchip.com> wrote:
> What if my global variable was into a different address space than stack?
It doesn't matter in terms of semantics: because AnalyzeGlobal
returned false, we're guaranteed the address of the global is never
taken. I wouldn't be surprised if we end up generating invalid IR in
some cases,
2009 Jun 30
0
[LLVMdev] llvmc for PIC16
Hi Sanjiv,
2009/6/29 Sanjiv Gupta <sanjiv.gupta at microchip.com>:
> I want to retrieve the value of argv[0] (which was passed to main function
> of the driver) in PrependCustomizedPath.
I've added a way to access argv[0] in hooks:
http://thread.gmane.org/gmane.comp.compilers.llvm.cvs/50789
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2009 Sep 11
1
[LLVMdev] tblgen bug in handling case , switch_on
Mikhail Glushenkov wrote:
> Hi,
>
> On Thu, Sep 10, 2009 at 8:01 PM, Sanjiv Gupta
> <sanjiv.gupta at microchip.com> wrote:
>
>> Why do we need both 'conflict' and 'warning' ?
>>
>
> 'warning' just prints a warning, 'conflict' is a fatal error.
>
> A better example would be something like:
>
> (warning (and
2009 Jul 02
2
[LLVMdev] llvmc for PIC16
Hi Sanjiv,
On Wed, Jul 1, 2009 at 7:02 PM, Sanjiv Gupta<sanjiv.gupta at microchip.com> wrote:
> I found out the problem. Looks like I can not rely on argv[0] to contain the
> full path of the executable always.
Yeah, that's what I was thinking.
> Can I rely on:
> static Path GetMainExecutable(const char *argv0, void *MainAddr);
Clang relies on it. According to
2009 Jun 15
3
[LLVMdev] llvmc for PIC16
Mikhail Glushenkov wrote:
> Hi Sanjiv,
>
> 2009/6/15 Sanjiv Gupta <sanjiv.gupta at microchip.com>:
>
>> Hi Mikhail,
>> How do you build mcc16 executable?
>>
>
> This should work:
>
> $ cd $LLVM_DIR/tools/llvmc/examples/mcc16
> $ make
>
>
I configure llvm into a separate directory from source.
When I do the steps you mentioned in
2009 Sep 10
4
[LLVMdev] tblgen bug in handling case , switch_on
Mikhail Glushenkov wrote:
> Hi Sanjiv,
>
> On Sun, Sep 6, 2009 at 8:13 PM, Mikhail
> Glushenkov<the.dead.shall.rise at gmail.com> wrote:
>
>> Hi Sanjiv,
>>
>> On Sun, Sep 6, 2009 at 8:07 PM, Mikhail
>> Glushenkov<the.dead.shall.rise at gmail.com> wrote:
>>
>>> [...]
>>>
>> [Sorry, the formatting was a
2009 Jun 18
3
[LLVMdev] llvmc for PIC16
Hi Mikhail,
Thanks for your wonderful help so far. I have few more questions to ask:
How do I modify the driver to pick tools from where the driver itself
resides, rather than from the PATH?
And how to make sure that we have same behavior on Windows as far as
paths (/ Vs \) and picking up tools from the driver directory is concerned?
Do I need to write some C++ code to customize such
2009 Jul 15
0
[LLVMdev] llvm-ld -disable-opt behavior.
On Wed, Jul 15, 2009 at 9:32 AM, sanjiv gupta<sanjiv.gupta at microchip.com> wrote:
> Consider the example command line below
>
> $ llvm-ld -disable-opt hello.bc -l std -o hello.out
>
> Why does -disable-opt links in all the bitcode from the libstd.so into
> hello.out?
... because it just disables optimization passed. It does not disable linking.
?
-
Devang
2009 Jun 16
3
[LLVMdev] Localizing Globals ?
The code excerpt is from IPO/GlobalOpt.cpp
// If this is a first class global and has only one accessing function
// and this function is main (which we know is not recursive we can make
// this global a local variable) we replace the global with a local
alloca
// in this function.
//
// NOTE: It doesn't make sense to promote non single-value types
since we
// are