similar to: [LLVMdev] Catching exceptions passed through a JIT ExecutionEngine

On Tue, Jul 12, 2011 at 07:25:16PM -0400, Peter Zion said > Hi All, > > I'm trying to catch an exception that is "passed through" an LLVM ExecutionEngine but I am unable to do so. Specifically, in C++ code, inside a try/catch block, I call a JITted function, which in turn calls back into my code. Everything works fine unless an exception is thrown; I would except the

Yes, I did -- it made no difference. Should it? Note that I have since discovered that this is not a problem on Windows -- the exception drops through as expected. pz On 2011-07-21, at 5:45 PM, Garrison Venn wrote: > Sorry Peter, just saw this. > > If you are still having the problem: > > Did you set: llvm::JITExceptionHandling = true; ? > > Garrison > > On Jul

Ok, see llvm/examples/ExceptionDemo/ExceptionDemo.cpp For OS X and Linux, build llvm with the environmental variable BUILD_EXAMPLES set to 1(csh: setenv BUILD_EXAMPLES 1). If llvm is already built, it will only build the examples from clang and llvm, ExceptionDemo being one of those. If I understand your case, running ExceptionDemo with an arg of -1 emulates your scenario. Note that the

Sorry Peter, just saw this. If you are still having the problem: Did you set: llvm::JITExceptionHandling = true; ? Garrison On Jul 12, 2011, at 19:25, Peter Zion wrote: > Hi All, > > I'm trying to catch an exception that is "passed through" an LLVM ExecutionEngine but I am unable to do so. Specifically, in C++ code, inside a try/catch block, I call a JITted function,

Is the labeling/naming of levels in the documentation for the predict.glmmPQL function "backwards"? The documentation states "Level values increase from outermost to innermost grouping, with level zero corresponding to the population predictions". Taking the sample in the documentation: fit <- glmmPQL(y ~ trt + I(week > 2), random = ~1 | ID, family =

I have data for several rings of a left heart chamber, and which I would like to display in concentric rings, with color-encoding of the values. Each ring corresponds to one slice through the heart, and the rings correspond to positions from the base to the apex of the heart as you move from the outermost ring to the innermost one. The data have a circular pattern. These types of displays are

Hi, I am trying to find way to speed up read access on ext3 filesystem. I did some tests using dd, with different block sizes, directio and none, etc. The test file is about 1Gig in size, and spread across 25 fragments (found using filefrag). Block size is 4k. I have also tried setting readahead buffer using blockdev , from 256 to 32767. time /root/dd conv=nocreat ibs=4096 obs=4096

On Apr 4, 2012, at 9:32 PM, Paul J. Lucas wrote: > On Mar 23, 2012, at 4:46 PM, Bill Wendling wrote: [...] > This all seems to work just fine. I can throw a C++ exception either in a C++ object's constructor or in an ordinary member function and the stack unwinds correctly (the object's destructors are called) and the exception is propagated back up the C++ code that called the

On Apr 8, 2012, at 10:40 PM, Bill Wendling wrote: > What gets returned by the landingpad instruction (%0 here) is normally a structure. LLVM doesn't typically treat aggregates as first-class citizens. In particular, you shouldn't store the whole structure to memory like you do to %5. You can use 'extractvalue' to get the different elements of the structure. If you need to

On Apr 8, 2012, at 4:20 AM, Bill Wendling wrote: > On Apr 4, 2012, at 9:32 PM, Paul J. Lucas wrote: > >> This all seems to work just fine. I can throw a C++ exception either in a C++ object's constructor or in an ordinary member function and the stack unwinds correctly (the object's destructors are called) and the exception is propagated back up the C++ code that called the

On Mar 23, 2012, at 4:29 PM, Paul J. Lucas wrote: > On Mar 23, 2012, at 3:25 PM, Bill Wendling wrote: > >> Let's take your example. You will have code that looks like this: >> >> extern "C" void thunk_item_M_delete( void *v_that ) { >> item *that = 0; >> try { >> that = static_cast<item*>( v_that ); >>

Hi weiren, Thanks for your suggestion! Yes, I am trying to do this "nested flattening". It seems that I need a post-dominator tree-based algorithm to flatten the nested loops from the innermost to the outermost, level by level. Is there any feature already existed in LLVM tools? Or similar? On Sun, Oct 22, 2017 at 2:31 AM, 陳韋任 <chenwj.cs97g at g2.nctu.edu.tw> wrote: > If

On Apr 8, 2012, at 8:47 AM, Paul J. Lucas wrote: > On Apr 8, 2012, at 4:20 AM, Bill Wendling wrote: > >> On Apr 4, 2012, at 9:32 PM, Paul J. Lucas wrote: >> >>> This all seems to work just fine. I can throw a C++ exception either in a C++ object's constructor or in an ordinary member function and the stack unwinds correctly (the object's destructors are

It appears that "break" will break from the outermost enclosing loop not the innermost loop. Is it a bug or language feature? Tim -- Timothy H. Keitt National Center for Ecological Analysis and Synthesis 735 State Street, Suite 300, Santa Barbara, CA 93101 Phone: 805-892-2519, FAX: 805-892-2510 http://www.nceas.ucsb.edu/~keitt/

Hi, On 02/10/2016 01:23 AM, haicheng at codeaurora.org wrote: > Thank you, Mikael. I can reproduce what you saw and am looking into it. Great! > Just curious, why do you run loop-deletion before licm and loop-idiom? As part of our internal testing we use Csmith to generate C-programs and then we run the compiler with random generated compiler flags on that input. This bug was

I observed about +6% performance improvement in one of c++ tests in spec2006 in AArch64 by avoiding inlining functions in exception handling region. I guess this is not really rare because programers often make small methods with throw statement like fCallee() in below sample c++ code. Thanks, Jun > Hi Jun, > > It's a very common that C++ exception handling code blow up the

I'm getting some odd behaviour from Wine when I call it from PHP, and I was wondering if someone who has the command line version of PHP installed would be willing to give the following test a try to see if it is something local to me or not. When I call Wine from a PHP script, it runs perfectly quickly. When I call that PHP script from another one, the whole thing slows down dramatically.

Hi Chris, The MCSymbol r98459 patch of llvm seems to have broken the ExceptionDemo example. As the example is dying in the associated personality's first unwind search phase, which happens to have no language specific context, and is returning a _URC_CONTINUE_UNWIND, I believe the issue is generic and not specific to the example. However I'm not sure why then this wasn't seen in one

Ok, I've isolated the recent additions that cause the issue and supplied a patch which is NOT meant to be applied, but instead solely exists for identification purposes for those who know what they are doing. :-) The patch is offset from HEAD. The patch is a hack which removes use of the MCSymbol::isDefined(...) method, as its use happens to break in the exception JIT context; both in

Hi everyone, I hope to implement a feature to transform an IR with "while" or "for" loops to a new IR with no loop. Instead, I just want to use if-else statements in the new IR to implement the original semantics. I can easily write a transform pass to handle the 1-level loop case, but for nested loops it seems a little harder. Can you show me some hints? Thank you very