similar to: [LLVMdev] Connecting two insns by a flag using anonymous pattern.

On Thu, 2008-10-30 at 08:51 -0700, Evan Cheng wrote: > I think so. If you are defining your own SDNode's, you need to specify > one as producing a flag, i.e. SDNPOutFlag; the other will be reading a > flag, i.e. SDNPInFlag. > > Evan > The problem is that B produces two values: i8, flag. And I would like to connect C using the flag of B and not by i8. > On Oct 29,

I think so. If you are defining your own SDNode's, you need to specify one as producing a flag, i.e. SDNPOutFlag; the other will be reading a flag, i.e. SDNPInFlag. Evan On Oct 29, 2008, at 2:55 AM, sanjiv gupta wrote: > def : Pat <(A), (B (C))>; > > can I connect B and C using a flag here? > > TIA, > -Sanjiv > _______________________________________________

Hi, What does it mean if a custom Node in the instructions description file is declared to have a Chain? Looking at different backends, I have the impression that it describes some sort of side effect and usually used for nodes affecting the control flow. But I'm not quite sure. Can someone describe the semantics of this property and also what is a typical usage of it? In particular, I have

Hi all, I've spent the day trying to understand setcc/select_cc intricacies, and I thought I should mention that so far as I can tell, the modeling of CPU flags, condition codes and therefore conditional instructions seems pretty broken. On the one hand there are the SDNPInFlag/SDNPOutFlag node properties which allow you to mark an instruction as using or def-ing the CPU flags

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

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

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

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

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? > > ...

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 >> >

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 -- () ascii ribbon campaign - against html e-mail /\ www.asciiribbon.org - against

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

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

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

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

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

All the sub methods called inside ExpandIntegerOperand like ExpandInOp_STORE etc have access to the expanded operands map. Why they aren't passed to target LowerOperation? A target may also want to use the already expanded Lo and Hi parts. - Sanjiv -------------- next part -------------- An HTML attachment was scrubbed... URL:

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

On Wed, 2008-10-01 at 11:12 +0200, Duncan Sands wrote: > Hi, > > > I have another query related to type legalizer. > > Can a target ignore certain nodes during legalize? Probably a hook for > > target that can be called inside IgnoreNodeResults ()? > > while this could be done, I don't like the idea of doing an end-run > around the whole type legalization

On Oct 1, 2008, at 3:01 AM, sanjiv gupta wrote: > On Wed, 2008-10-01 at 11:12 +0200, Duncan Sands wrote: >> Hi, >> >>> I have another query related to type legalizer. >>> Can a target ignore certain nodes during legalize? Probably a hook >>> for >>> target that can be called inside IgnoreNodeResults ()? >> >> while this could be