similar to: [LLVMdev] PHINode containing itself causes segfault when compiling Blender OpenCL kernel with R600 backend

https://bugs.freedesktop.org/show_bug.cgi?id=111007 Bug ID: 111007 Summary: Blender crash when opening material tab GTX 750Ti -- NV117 (GM107) Product: Mesa Version: 19.1 Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium

Hi all, I have problem with ExtractCodeRegion (CodeExtractor.cpp). My original program is as follows. bb: ... %tmp.15 = load %struct.MYSQL_ROWS** %3, align 4 ... bb1: ... %tmp.1 = load %struct.MYSQL_ROWS** %6, align 4 ... bb4: ; preds = %bb1, %bb, %entry %tmp.0 = phi %struct.MYSQL_ROWS* [ null, %entry ], [ %tmp.15, %bb ], [ %tmp.1, %bb1 ]

I am getting a segmentation fault as soon as I touch the Basic block *b value defined as :  std::string getPHIAssigns(const PHINode *PH)  { const BasicBlock *b = PH->getParent();    errs() << b->size(); where as getPHIAssigns is being called from               for (BasicBlock::iterator ins=b->begin(), e3=b->end(); ins!=e3; ++ins, ++l) // get instructions                

Hi all, I have encountered the following instruction: %.0.i = phi i8* [ %9, %8 ], [ %11, %10 ] How can I get the %8 and %10? I'm using http://llvm.org/doxygen/classllvm_1_1PHINode.html as a reference but I cannot understand how to do that. Thanks -------------- next part -------------- An HTML attachment was scrubbed... URL:

I guess I didn't have a clear question. Suppose we have BB1 and BB2 both point to BB3. BB1 has variable x. BB2 also as variable x. BB3 will have PHINode for x with 2 value from BB1 and BB2. BB1 BB2 \ / BB3 Now if BB1 and BB2 is extracted into a function (using ExtractCodeRegion), they will be replaced by a basic block called codeRepl (which has a call to the extracted

Hi Surinder, I don't see anything obviously wrong with your code. I suggest that (1) you build LLVM with assertions enabled, (2) you run the verifier on your bitcode, and (3) run your program under valgrind. Ciao, Duncan. > I am getting a segmentation fault as soon as I touch the Basic block > *b value defined as : > > std::string getPHIAssigns(const PHINode *PH) > {

On 01/26/2011 07:50 PM, Vu Le wrote: > I guess I didn't have a clear question. > > Suppose we have BB1 and BB2 both point to BB3. > BB1 has variable x. BB2 also as variable x. > BB3 will have PHINode for x with 2 value from BB1 and BB2. > BB1 BB2 > \ / > BB3 > > Now if BB1 and BB2 is extracted into a function > (using ExtractCodeRegion), they

I'm running into an error message about PHINode which I don't understand too well. Hopefully I can explain this clearly. At a high level, I'm just trying to add a fprintf() statement at the end of functions to show me a timestamp. However, I also add an if/then such that I can turn the printing on/off. When using llvm-gcc, I've disabled linker and assembler optimizations in

I now understand that IndVarSimplify.cpp is capable of reproducing array references when the pointer initialization from the array address is found inside the immediately enclosing loop, such that in the following code: int A[20000], B[100], Z; int main() { int i, j, *a, *b; for ( a = &A[0], i = 0; i != 200; i++ ) for ( b = &B[0], j = 0; j != 100; j++

Hi, I've been writing an optimization pass (described on the ML previously). Sometimes this pass removes some case entries from switch instructions, which cause an abort because removeCase() doesn't fix the PHINodes predecessors when needed. e.g.: define i32 @foo() nounwind { ifthen: %call = call i32 @bar() switch i32 %call, label %myphi [ i32 0, label %ifelse i32 1, label

Here is the code snippet that I am using to create the PHIs in the loop according to the PHIs in the new preheader. At this point I have already redirected the loop backedge and removed the preheader from the loop. for (BasicBlock::iterator II = loopHeaderBB->begin(); (PN=dyn_cast<PHINode>(II)); ++II) { // remove loop back PHI and add it to split BB

Hi! I'm using Dovecot 2.2.13 (Debian Jessie package 1:2.2.13-12~deb8u1) on my personal mail server (the address I'm writing from is on this server). I use Maildirs, I have fts + fts_squat enabled, and I have a problem with it for a long time - dovecot seems to not update the index always "incrementally". Yesterday I've finally made a test by telneting to imap port and

Nuno Lopes wrote: > PHINode should have one entry for each predecessor of its parent basic > block! > %ret.0 = phi i32 [ 0, %ifthen ], [ 1, %ifelse ] ; <i32> > [#uses=1] > Broken module found, compilation aborted! > > This is because myphi is not reachable from ifthen anymore. My question is: > is this a bug (or missing feature) or do I need to

Hi, Simple description of the problem below. I have code coming into pruneEH as follows fn a { entry: call fn b ... for_cond: %i = phi [1, entry] [%x, for_body] cmp $i with someval cond-br for_body or for_exit for_body: ... $x = $i + 1 branch for_cond for_exit ... } PruneEH determines that the call to fn-b won't return. The code is modified thus. fn a { entry: call fn b unreachable insn

I guess I thought that once I redirected the branches and created new PHIs that LLVM would correct the variable usage when I return true (changed CFG) from the pass. Is this not the case? On Wed, Mar 7, 2012 at 4:08 PM, Ryan Taylor <ryta1203 at gmail.com> wrote: > Here is the code snippet that I am using to create the PHIs in the loop > according to the PHIs in the new preheader. At

On Wed, 23 Jun 2004, Patrick Meredith wrote: > What's different about code that's been mem2reg'd from straight front end > code, or anything that mem2reg hasn't been run on? PHINODES! Yup, front-ends generally don't produce SSA form. :) > It appears to be crashing when I try to cast a Value* that's really a > BB* (from the PHInode operands) to a User*,

On Wed, Jun 23, 2004 at 03:50:09PM -0500, Patrick Meredith wrote: > MetaSplit is an anlysis I just finished writing. It doesn't alter > anything, all it does is build a set of "program instructions". For > some reason even though if I run it with any other combination of > passes I've found, anytime I run it with mem2reg I get a seg fault in > dyn_cast!

I have attached a case of what I am trying to do, I'm pretty sure I'm just missing some simple API call. In the cfg you can see that although Im setting "lsr.iv441" as "lsr.iv44" from for.body.387.i it's not propagating that through the block or graph. On Wed, Mar 7, 2012 at 12:03 PM, Ryan Taylor <ryta1203 at gmail.com> wrote: > I am splitting a one BB

https://bugs.freedesktop.org/show_bug.cgi?id=97922 Bug ID: 97922 Summary: Having easily reproducible xorg hang on extensive blender 3d editor usage Product: xorg Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium

---------- Forwarded message ---------- From: Ryan Taylor <ryta1203 at gmail.com> Date: Mon, Feb 6, 2012 at 10:36 AM Subject: Re: [LLVMdev] Updating PHI for Instruction Domination? To: Eric Christopher <echristo at apple.com> Since I'm not sure which instructions I might want to replicate, would it be possible to cast the Value from "PHINode::getIncomingValue" to