similar to: [LLVMdev] help

Sir ,how can I get the variable %2 in instruction %2 = sub nsw i32 1, %y If I am using getName() function then it outputs the null string. How can I get the original name? Regards, Rajwinder Singh -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20100623/37038c90/attachment.html>

On Wed, Dec 12, 2012 at 01:59:55PM -0800, Dan Gohman wrote: > The bug here isn't in clang's use of noalias or in BasicAliasAnalysis' > implementation of noalias; it's in the code that's optimizing the > icmp. Let's come back to this. The attached patch decouples InstSimplify from the alias analysis and provides the conservative logic for when pointers are not

How can I get list of its predecessor basic blocks from a basic block? --Rajwinder Singh -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20100625/21c52063/attachment.html>

This addition converts strlen() calls to strnlen() when the result is compared to a constant. For example, the following: strlen(s) < 5 Becomes: strnlen(s, 5) < 5 That way, we don't have to walk through the entire string. There is the added overhead of maintaining a counter when using strnlen(), but I thought I'd start with the general case. It may make sense to only use this

Can anyone tell me, In the following instruction %"struct.std::locale::facet" = type { i32 (...)**, i32 } what does i32 (...)** means? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20100718/3f9fe5fe/attachment.html>

On Wed, Dec 12, 2012 at 1:26 PM, Joerg Sonnenberger <joerg at britannica.bec.de> wrote: > On Wed, Dec 12, 2012 at 11:01:01AM -0800, Dan Gohman wrote: >> > Is that >> > assumption violated if I explicitly cast away const and pass the result >> > to a function with NoAlias argument? >> >> Not immediately, no. It means that you can't access the

On Wed, Dec 12, 2012 at 11:01:01AM -0800, Dan Gohman wrote: > > Is that > > assumption violated if I explicitly cast away const and pass the result > > to a function with NoAlias argument? > > Not immediately, no. It means that you can't access the constant > pointer's pointee directly within the noalias argument's scope. Access > to that object must go

On 25/06/10 06:05, RAJWINDER SINGH wrote: > How can I get list of its predecessor basic blocks from a basic block? If BB is a BasicBlock*, you can get begin and end iterators using pred_begin(BB) and pred_end(BB). Ciao, Duncan.

RAJWINDER SINGH wrote: > I am making a CDFG graph out of the instruction. What is a CDFG? Do you mean a control dependence graph? Control-dependence can be computed utilizing the PostDominatorTree pass. > for that purpose I require the name because > if I am using its ID then ID may be same for the two such variables. What do you mean by an instruction's ID? > How can I

Hi all: I am trying to compare the return value of a call instruction with 0. The called function's return type is uint32. The return value is 1 or 0. But the icmp instruction cannot be created. CallInst *ret = CallInst::Create(ptr_func, params.begin(), params.end(), "", bb); Value *cmp = new ICmpInst(*bb, ICmpInst::ICMP_EQ, ret, ,ConstantInt::get(getIntegerType(32), 0)

Hello, In one of the loop transformations I am developing, I need to convert eq and neq loop latch condition into less than or greater than depending on the control flow. The problem is that CmpInst::ICMP_EQ and CmpInst::ICMP_NE are neither signed nor unsigned in LLVM. Also, I did not find a way to find out if the integer operands of the CmpInst are signed or unsigned. Apparently, LLVM does

Hi, Is it intentional that LazyValueInfo.getPredicateAt doesn't solve for the value and only takes assumptions into account? getPredicateAt gets lattice value from cache using getValueAt call: LVILatticeVal LazyValueInfoCache::getValueAt(Value *V, Instruction *CxtI) { ... LVILatticeVal Result; mergeAssumeBlockValueConstantRange(V, Result, CxtI); ... return Result; } Other

hi all, i am have a project need to compute the back-edge taken count of a loop, and the "getBackedgeTakenCount" function of ScalarEvolution could do this for me. but later i found that ScalarEvolution could not compute loops with test expression containing a "=", such as: void scop_func(long A[], long n) { long i; for (i = 1; i<= n; i++) A[i] = 1; } after have

Hi. There are few one-line bugs Andrey Karpov have found with static analisys. He wrote a big article in russian on http://habrahabr.ru/blogs/compilers/125626/ for advertising purposes of static analyzer for Visual Studio his company developed. Most of the problems are easy to fix, so I list them in here for trunk version. Also few problems in clang code were found, I don't list them in here.

Sure On Mon, Jul 4, 2016, 9:40 AM Carlos Liam <carlos at aarzee.me> wrote: > It looks like there's already something similar in PropagateEquality which > eg X >= Y == true and replaces X < Y == false, which is somewhat similar - > could I base an addition off of that? > > > - CL > > On Jul 3, 2016, at 7:13 PM, Daniel Berlin <dberlin at dberlin.org>

Hello ! I want some piece of advice regarding a LLVM pass. My particular problem is: There is a method bool patternDC::runOnFunction(Function &F) { ... if ( CC->operEquiv(icmpInstrArray[i], icmpInstrArray[j]) ) {...} ... } having the array elements of type Instruction* : http://llvm.org/doxygen/classllvm_1_1Instruction.html The called method is bool

Let us say there is an Instruction I in an IR. Is there any function using which I can know that in which line number this Instruction I lies in the original c++ file?? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20100722/e43be8d3/attachment.html>

This lets us spill more values and compile a big shader for Civilization 6. Signed-off-by: Tobias Klausmann <tobias.johannes.klausmann at mni.thm.de> --- src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp | 2 -- 1 file changed, 2 deletions(-) diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp index b33d7b4010..f29c8a1a95

In the insrtuction %1 = load i32** %y_addr, align 4 what is the meaning of align 4?? Can anyone explain? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20100716/ef433d43/attachment.html>

On Wed, Jan 16, 2013 at 12:53:55AM +0100, Joerg Sonnenberger wrote: > Let's come back to this. The attached patch decouples InstSimplify from > the alias analysis and provides the conservative logic for when pointers > are not equal. Let's take the version with the cleanup from IRC. *sigh* Dealing with too many copies. Joerg -------------- next part -------------- Index: