similar to: Potential infinite loop in MemorySSAUpdater

On Sat, Sep 23, 2017 at 9:55 AM, Godala, Bhargav-reddy < Bhargav-reddy.Godala at amd.com> wrote: > > With regards > Bhargav Reddy Godala > Software Engineer 2 > Bangalore, India > E-mail: Bhargav-reddy.Godala at amd.com Ext 30678 > > > > On 23-Sep-2017, at 9:27 PM, Daniel Berlin <dberlin at dberlin.org> wrote: > > > > On Sat, Sep 23, 2017 at

I understand that changing the starting element to “InsertedPHIs.being() + StartingPHISize” it will be finite but given that InsrtedPHIs is finite. I have a case where one element(same element is appened to InsertedPHIs) is added to InsertedPHIs every time fixupDefs is invoked. I traced the issue why this was happening. template <class RangeType> MemoryAccess

With regards Bhargav Reddy Godala Software Engineer 2 Bangalore, India E-mail: Bhargav-reddy.Godala at amd.com<mailto:Bhargav-reddy.Godala at amd.com> Ext 30678 On 23-Sep-2017, at 9:27 PM, Daniel Berlin <dberlin at dberlin.org<mailto:dberlin at dberlin.org>> wrote: On Sat, Sep 23, 2017 at 8:38 AM, Godala, Bhargav-reddy via llvm-dev <llvm-dev at

We should only add phis that were newly inserted, not ones that were already found. There are two cases we will hvae inserted phis: Part of the recursive call, or right in this function. The easiest way to differentiate new phis from old ones is whether they have 0 operands. I expect the attached will fix it. If not, please file a bug with reproducible IR. On Sun, Sep 24, 2017 at 11:40 PM,

On Sat, Sep 23, 2017 at 8:38 AM, Godala, Bhargav-reddy via llvm-dev < llvm-dev at lists.llvm.org> wrote: > Hi, > > Can some one explain the intended behaviour of following loop in void > MemorySSAUpdater::insertDef(MemoryDef *MD, bool RenameUses) function. > > while (!FixupList.empty()) { > unsigned StartingPHISize = InsertedPHIs.size(); >

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KSR[T] Advisory #002 Date: Jul 16, 1997 ID #: lin-ldso-002 Operating System(s): Linux Affected Program: ld.so / ld-linux.so Problem Description: ld.so is the run-time linker used by dynamically linked executables(a.out). Inside the error reporting

Update to KSR[T] Advisory #002 Our advisory contained one serious piece of mis-information. The latest version of ld.so that we tested (1.9.2) still appeared to be vulnerable to this overflow. We strongly recommend that anyone running linux install the patch distributed with the advisory, or wait for your vendor to release an updated ld.so package and install that as soon as possible. The

When we erase a memory access instruction, existing passes using memory ssa like GVN, NewGVN, GVNHoist and EarlyCSE uses MemorySSAUpdater to do the update before the instruction is erased. However, if we call llvm::RecursivelyDeleteTriviallyDeadInstructions to find out dead instruction recursively and memory access instructions may be erased inside the recursive process, we need a way to update

Hi guys, a question about updating memory SSA: Is it expected that e.g insertion of MemoryDef doesn't change all dominated uses? For example test case CreateLoadsAndStoreUpdater produces: define void @F(i8*) { ; 1 = MemoryDef(liveOnEntry) store i8 16, i8* %0 ; 4 = MemoryDef(1) store i8 16, i8* %0 br i1 true, label %2, label %3 ; <label>:2: ;

Hi, Can someone who's familiar with lld take a look? [2980/3371] Building C object tools/llvm-c-test/CMakeFiles/llvm-c-test.dir/disassemble.c.o [2981/3371] Building CXX object tools/lld/COFF/CMakeFiles/lldCOFF.dir/Writer.cpp.o FAILED: tools/lld/COFF/CMakeFiles/lldCOFF.dir/Writer.cpp.o /opt/arm/arm-linux-compiler-20.0_Generic-AArch64_RHEL-7_aarch64-linux/bin/armclang++ -DGTEST_HAS_RTTI=0

In particular, if you want to add support, the right way to know what to rename is (off the top of my head) add a flag or something to have renamepass reset all uses it sees (you only have to change the uses, defs are all linked together and thus already fixed by the updater). Right now it only does that if they have no defining access. Make it skip blocks already in the visited set (the

Given a vector;> ab = seq(0.5,1, by=0.1)> ab[1] 0.5 0.6 0.7 0.8 0.9 1.0 The euclidean distance between the vector elements is given by the lower triangular matrix > dd1 = dist(ab,"euclidean")> dd1    1   2   3   4   52 0.1                3 0.2 0.1            4 0.3 0.2 0.1        5 0.4 0.3 0.2 0.1    6 0.5 0.4 0.3 0.2 0.1 Convert the lower triangular matrix to a full