search for: inexact

...os checking for bcopy... yes checking for bzero... yes checking for function prototypes checking for function prototypes in structures updating cache ./config.cache creating ./config.status creating makefile creating src/config.h creating src/machine.h ** libs gcc -I/usr/lib/R/include -mieee-with-inexact -fPIC -g -O2 -c block.c -o block.o gcc -I/usr/lib/R/include -mieee-with-inexact -fPIC -g -O2 -c chfactor.c -o chfactor.o gcc -I/usr/lib/R/include -mieee-with-inexact -fPIC -g -O2 -c copy.c -o copy.o gcc -I/usr/lib/R/include -mieee-with-inexact -fPIC -g -O2 -c data.c -o data.o /tmp...

...> I’m getting close. I think it may be an issue with an individual intrinsic. I’m looking for the X86 lowering of Instruction::FPToUI. > > I found a comment around the rationale for using a conditional move versus a branch. I believe the predicate logic using a conditional move is causing INEXACT to be set from the other side of the predicate as the lowered x86_64 code executes both conversions whereas GCC uses a branch. That seems to be the difference. > > I can’t find FPToUI in llvm/lib/Target/X86 so I’m trying to figure out what the cast gets renamed to in the target layer so I ca...

...t doesn’t seem to > be happening in this case. My inclination was to just rewrite the > ExpandNode() code above to explicitly create a branch, but I haven’t tried > it yet. > > > > As a side effect, which is what originally drew Michael’s attention to > this conversion, the INEXACT floating point flag is set even for exact > conversions as a result of the speculative FSUB. That’s how this got > related to FENV_ACCESS support. > > > > I don’t know if there has been a bug opened for this issue. There was an > earlier discussion here: https://groups.google...

I have a simple cdr configured with the default tables, here is a row of a good cdr report calldate | clid | src | dst | dcontext | channel | ect ..... ect .... 2008-08-29 10:16:49 | "C. BOUTON" <40> | 40 | XXXXXXXXXXX | phonesystems | SIP/40-08776938 | ect ..... ect .... I have replaced the number by

Dear all, I did post a message about problems on installing a package (gstat) which ends with a compilation error: ** libs gcc -I/usr/lib/R/include -mieee-with-inexact -fPIC -g -O2 -c block.c -o block.o gcc -I/usr/lib/R/include -mieee-with-inexact -fPIC -g -O2 -c chfactor.c -o chfactor.o gcc -I/usr/lib/R/include -mieee-with-inexact -fPIC -g -O2 -c copy.c -o copy.o gcc -I/usr/lib/R/include -mieee-with-inexact -fPIC -g -O2 -c data.c -o data.o /tmp...

Hello, by checking the precision of a convolution algorithm, we found the following "inexactness": We work with R Version 1.8.1 (2003-11-21) on Windows systems (NT, 2000, XP). Try the code: ## Kolmogorov distance between two methods to ## determine P(Poisson(lambda)<=x) Kolm.dist <- function(lam, eps){ x <- seq(0,qpois(1-eps, lambda=lam), by=1) max(abs(ppois(x, lambda=l...

Hello R-Community, I have the following matching problem: I have two data.frames, one with an observation every month (per company ID), and one with an observation every quarter (per company ID; note that quarter means fiscal quarter; therefore 1Q = Jan, Feb, Mar is not necessarily correct and also, a fiscal quarter is not necessarily 3 month long). For every month and company, I want to get the

...k one… (and we already did :) I see the source of confusion now. IEEE does not define any operations as trapping on sNaN. It defines operations as raising the invalid flag on sNaN, which is *not a trap* under default exception handling. It is exactly the same as raising the underflow, overflow, inexact, or division-by-zero flag. Any llvm instruction necessarily assumes default exception handling—otherwise, we would be using the constrained intrinsics instead. So there’s no reason for sNaN inputs to ever be undef with the llvm instructions. They are just NaNs. – Steve -------------- next part -...

...e this at the discretion of the backend. Also, we should take care to document the non-constrained forms of these intrinsics in a way that makes clear that we are “assuming” and not requiring that the operation has no side effects. For the constrained version of nearbyint, we will require that the inexact exception is not raised (to be consistent with iEEE 754-2019’s roundToIntegral operations) and for the constrained version of rint we will require that the inexact exception is raised (to be consistent with iEEE 754-2019’s roundToIntegralExact operation), but for the non-constrained forms it should...

...qs_on() (Not tainted) [<c040566e>] show_trace_log_lvl+0x58/0x177 [<c0405c73>] show_trace+0xd/0x10 [<c0405cb1>] dump_stack+0x19/0x1b [<c043646e>] trace_hardirqs_on+0xa4/0x120 [<c0404e67>] restore_all+0x37/0x3a DWARF2 unwinder stuck at restore_all+0x37/0x3a Leftover inexact backtrace: Inexact backtrace: [<c0405c73>] show_trace+0xd/0x10 [<c0405cb1>] dump_stack+0x19/0x1b [<c043646e>] trace_hardirqs_on+0xa4/0x120 [<c0404e67>] restore_all+0x37/0x3a any help ? -------------------- Itamar Reis Peixoto e-mail: itamar@ispbrasil.com.br ms...

...qs_on() (Not tainted) [<c040566e>] show_trace_log_lvl+0x58/0x177 [<c0405c73>] show_trace+0xd/0x10 [<c0405cb1>] dump_stack+0x19/0x1b [<c043646e>] trace_hardirqs_on+0xa4/0x120 [<c0404e67>] restore_all+0x37/0x3a DWARF2 unwinder stuck at restore_all+0x37/0x3a Leftover inexact backtrace: Inexact backtrace: [<c0405c73>] show_trace+0xd/0x10 [<c0405cb1>] dump_stack+0x19/0x1b [<c043646e>] trace_hardirqs_on+0xa4/0x120 [<c0404e67>] restore_all+0x37/0x3a any help ? -------------------- Itamar Reis Peixoto e-mail: itamar@ispbrasil.com.br ms...

...ta for each sensor identified in some way, but you do not know the > > > mapping between sensor identifiers from the database and the (x,y) coordinates. > > > Is this correct? > > > > Yes. > > > > > > > > > So I modelled the problem as inexact match between 2 Graphs. Since the best > > > > package on Graphs i.e. iGraph does not have any function for Graph matching > > > > > > I think, the problem is close to > > > > > > http://en.wikipedia.org/wiki/Graph_isomorphism > > > &...

...my knowledge, facts on declarations are valid even in the place of derefinement.  This results in the analysis being unnecessarily conservative around external declarations. *AlwaysInline and hasExactDefinition* I believe, but have not fully thought through, that it is legal to IPO across an inexact definition boundary if a particularly callsite or declaration is marked alwaysinline.  It's not clear this matters since we'll eventually inline it anyway, but this might be a compile time savings by simplifying callers earlier than otherwise possible. Philip -------------- next part -...

...broken? If it's > going to take broader discussion to agree on an answer, that's probably out > of scope for this thread, but perhaps there's a clear answer that just > wasn't written down so far? > > For the constrained version of nearbyint, we will require that the inexact >> exception is not raised (to be consistent with iEEE 754-2019’s >> roundToIntegral operations) and for the constrained version of rint we will >> require that the inexact exception is raised (to be consistent with iEEE >> 754-2019’s roundToIntegralExact operation), but for...

...ng patch addresses. -Andy From: llvm-dev [mailto:llvm-dev-bounces at lists.llvm.org] On Behalf Of Flamedoge via llvm-dev Sent: Wednesday, April 19, 2017 10:14 AM To: Michael Clark <michaeljclark at mac.com> Cc: llvm-dev <llvm-dev at lists.llvm.org> Subject: Re: [llvm-dev] [cfe-dev] FE_INEXACT being set for an exact conversion from float to unsigned long long > Are we better off using branches instead of cmove to implement FP to unsigned i64? This seems like it was done for perf reason (mispredict). Conditional-to-cmov transformation should keep from introducing additional observabl...

...iscussion to agree on an answer, that's probably out >>> of scope for this thread, but perhaps there's a clear answer that just >>> wasn't written down so far? >>> >>> For the constrained version of nearbyint, we will require that the >>>> inexact exception is not raised (to be consistent with iEEE 754-2019’s >>>> roundToIntegral operations) and for the constrained version of rint we will >>>> require that the inexact exception is raised (to be consistent with iEEE >>>> 754-2019’s roundToIntegralExact oper...

> > I'm not sure why this is an issue. Yes, these two intrinsics depend > on the current rounding mode according to the C standard, and yes, > LLVM in default mode assumes that the current rounding mode is the > default rounding mode. But the same holds true for many other > intrinsics and even the arithmetic IR operations like add. Any other intrinsic, like `floor`,

On Tue, Oct 2, 2018 at 12:09 PM Kevin Neal <Kevin.Neal at sas.com> wrote: > If we don’t have constrained intrinsics for some of the fp math > instructions then aren’t we risking non-strict optimizations? > So far we've only added constrained FP intrinsics for operations that have side effects (i.e. can trap). The quiet-computational sign-bit operations are special. They never

...e reports that were made by Crystal Reports the program displays the message "Application-defined or object-defined error." Any advice on how to get this work??? Thanks! Here is a copy of the messages that was displayed on the terminal when I clicked the report: First chance exception: inexact float result in 32-bit code (0x7b83f4a0). Register dump: CS:0073 SS:007b DS:007b ES:007b FS:0033 GS:003b EIP:7b83f4a0 ESP:0034f608 EBP:0034f66c EFLAGS:00200202( - 00 - - I1) EAX:7b82bd59 EBX:7b8a59c0 ECX:00000000 EDX:0034f684 ESI:0034f684 EDI:0034f738 Stack dump: 0x0034f608: 0034f684 00...

Per https://buildd.debian.org/build.php?pkg=r-base, we see the Alpha platform having trouble with deriv.c : gcc -I. -I../../src/include -I../../src/include -DHAVE_CONFIG_H -mieee-with-inexact -fpic -std=gnu99 -O3 -pipe -g -c deriv.c -o deriv.o deriv.c: In function 'simplify': deriv.c:267: error: unrecognizable insn: (insn 2103 64 65 9 ../../src/include/Rinlinedfuns.h:86 (set (reg:DI 2 $2) (const:DI (plus:DI (label_ref:DI 68) (const_int 24 [0x18])))) -1...