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2005 Sep 07
1
[LLVMdev] LiveIntervals invalidates LiveVariables?
On 08/09/05, Alkis Evlogimenos <evlogimenos at gmail.com> wrote: > to those coalesced registers, it is logical that noone will ever query > the liveness of those registers (unless there is a bug somewhere in the Indeed the coalesced registers may logically not be queried since they do not appear in any operand list...
2005 Sep 07
1
[LLVMdev] LiveIntervals, replace register with representative register?
On 08/09/05, Alkis Evlogimenos <evlogimenos at gmail.com> wrote: > representative register (found using a union find algorithm). Note that > the representative register could be a real register if we ever joined > an interval of a real register with one of a virtual register (and this > real register will be t...
2004 Jun 09
2
[LLVMdev] Saving registers used by function
Alkis Evlogimenos wrote: > On Wed, 2004-06-09 at 04:56, Vladimir Prus wrote: > > Hello! > > Is there an (semi)automatic way to save registers used by a function? For > > example, on my target I have to store ar0-ar4 and gr0-gr4, gr5, gr6. For > > now I just emit huge prologue code to push...
2005 Aug 28
1
[LLVMdev] MutexGuard and MutexLocker
On Sat, 2005-08-27 at 11:47 -0700, Reid Spencer wrote: > Alkis Evlogimenos wrote: > > It seems that these two classes are the same... Maybe they should be > > merged into 1 class? > > > I think you're looking at something old. MutexLocker doesn't exist any more. llvm/Support/ThreadSupport.h is not generated anymore? -- Alkis
2004 May 06
0
[LLVMdev] Plea for help
On Thu, May 06, 2004 at 04:06:27PM +0200, Finn S Andersen wrote: > Chris Lattner wrote: > > >I think that we should switch to C constants in this case. Can you try > >#include <math.h> and use HUGE_VAL instead? > > > It works: > > [finna at coplin11 ~/test]$ cat tst.cpp > #include <limits> > #include <iostream> > #include
2004 May 06
1
[LLVMdev] Plea for help
Alkis Evlogimenos wrote: >As for CVS, I am not sure this should be fixed because there is >really no LLVM bug here :-) > > > No, you are right. But perhaps it is worth it to mention the problem somewhere in the documentation, because there appear to be many installations with this problem (I'...
2004 Jun 09
0
[LLVMdev] Saving registers used by function
On Wed, 2004-06-09 at 05:26, Vladimir Prus wrote: > Alkis Evlogimenos wrote: > > On Wed, 2004-06-09 at 04:56, Vladimir Prus wrote: > > > Hello! > > > Is there an (semi)automatic way to save registers used by a function? For > > > example, on my target I have to store ar0-ar4 and gr0-gr4, gr5, gr6. For > > > now I just emit h...
2004 Jul 08
0
[LLVMdev] UnitTests/2002-05-19-DivTest.c
On Thu, 2004-07-08 at 07:07, Vladimir Prus wrote: > Vladimir Prus wrote: > > Vladimir Prus wrote: > > > The above-mentioned test contains this: > > > > > > long B53 = - (1LL << 53); > > > > > > strictly speaking, this is not correct code. The C standard says about > > > shift: "if the value of the first operator is ... or
2004 Jul 08
1
[LLVMdev] UnitTests/2002-05-19-DivTest.c
Alkis Evlogimenos wrote: > > But the test still has a problem ;-) > > > > printf("%ld\n", Arg / (1LL << 4)); > > > > Again, the passed value is long long, and format specifier is '%ld'. What > > about the attached patch? > > I think testL has anot...
2005 Aug 27
2
[LLVMdev] MutexGuard and MutexLocker
It seems that these two classes are the same... Maybe they should be merged into 1 class? -- Alkis
2005 Aug 27
0
[LLVMdev] MutexGuard and MutexLocker
Alkis Evlogimenos wrote: > It seems that these two classes are the same... Maybe they should be > merged into 1 class? > I think you're looking at something old. MutexLocker doesn't exist any more. Reid.
2005 Sep 07
0
[LLVMdev] LiveIntervals invalidates LiveVariables?
On Wed, 2005-09-07 at 18:24 +0800, Tzu-Chien Chiu wrote: > I though LiveVariables may be invalidated by LiveIntervals, but it's > declared not: > > void LiveIntervals::getAnalysisUsage(AnalysisUsage &AU) const > { > AU.addPreserved<LiveVariables>(); > AU.addRequired<LiveVariables>(); > ... > > LiveInterval may coalesce virtual registers and
2005 Sep 07
0
[LLVMdev] LiveIntervals, replace register with representative register?
On Wed, 2005-09-07 at 15:09 +0800, Tzu-Chien Chiu wrote: > I don't understand the following code snippet in LiveIntervalAnalysis.cpp. > > Why changing the type of the opreand from a virtual register to a > machine register? The register number (reg) is still a virtual > register index (>1024). > > > bool LiveIntervals::runOnMachineFunction(MachineFunction &fn)
2004 Oct 21
2
[LLVMdev] UPDATE: Automake Difficulties (Long)
Alkis Evlogimenos wrote: [snip] > >>Is anything with "Boost" in name will be rejected right away? > > > Absolutely not! We were using one of the boost libraries before and we > replaced it because it was easy to do and it removed one external dependency > for us, not because i...
2004 Jul 08
3
[LLVMdev] UnitTests/2002-05-19-DivTest.c
Vladimir Prus wrote: > Vladimir Prus wrote: > > The above-mentioned test contains this: > > > > long B53 = - (1LL << 53); > > > > strictly speaking, this is not correct code. The C standard says about > > shift: "if the value of the first operator is ... or greater than ... the > > width of the promoted left operand, the behaviour is
2004 May 06
3
[LLVMdev] Plea for help
Chris Lattner wrote: >I think that we should switch to C constants in this case. Can you try >#include <math.h> and use HUGE_VAL instead? > It works: [finna at coplin11 ~/test]$ cat tst.cpp #include <limits> #include <iostream> #include <math.h> int main() { std::cerr << std::numeric_limits<float>::infinity() << "\n"; std::cerr
2006 Mar 03
1
[LLVMdev] printing constants
...ing, please edit your Subject line so it > is more specific > than "Re: Contents of LLVMdev digest..." > > > Today's Topics: > > 1. Re: Re: Re: New GCC4-based C/C++/ObjC > front-end for LLVM > (Chris Lattner) > 2. Re: llvm-java state (Alkis Evlogimenos) > 3. Re: Re: Re: New GCC4-based C/C++/ObjC > front-end for LLVM > (Chris Lattner) > 4. printing constants (anubham suresh) > 5. install dirs (Rogelio Serrano) > 6. Re: install dirs (John Criswell) > 7. Re: install dirs (Rogelio Serrano) > 8. Re: pri...
2006 May 02
0
[LLVMdev] Re: Newbie questions
On 29 Apr 2006 20:38:58 -0600, Tom Tromey <tromey at redhat.com> wrote: > >>>>> "Archie" == Archie Cobbs <archie at dellroad.org> writes: > > >> In the JIT, devirtualization looks doable, though somewhat fiddly. At > >> least, that is true for straightforward things like calls to methods > >> in final classes, or calls to
2006 Apr 26
3
[LLVMdev] Newbie questions
On 4/25/06, Archie Cobbs <archie at dellroad.org> wrote: > Alkis Evlogimenos wrote: > > On 4/25/06, Archie Cobbs <archie at dellroad.org> wrote: > >> Motivation: Java's "first active use" requirement for class initialization. > >> When invoking a static method, it's possible that a class may need to > >> be initializ...
2005 Sep 07
3
[LLVMdev] LiveIntervals invalidates LiveVariables?
I though LiveVariables may be invalidated by LiveIntervals, but it's declared not: void LiveIntervals::getAnalysisUsage(AnalysisUsage &AU) const { AU.addPreserved<LiveVariables>(); AU.addRequired<LiveVariables>(); ... LiveInterval may coalesce virtual registers and remove identity moves instructions: bool LiveIntervals::runOnMachineFunction(MachineFunction &fn) {