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I'm probably missing something obvious here, but naively, this makes it kind of awkward to have mutable thread local state... -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20141212/53b577ae/attachment.html>

...think it would be better if it returned an int, which was -1 if not found. + MemoryDependenceAnalysis& MD = getAnalysis<MemoryDependenceAnalysis>(); You can sink this link to right before the call to MD.getDependency. + // Require pointer to have local dependency. + if (!dep.getInst() || dep.isNonLocal()) + return false; Random thought: after this patch goes in, it would be interesting to see how many queries get rejected because they are non-local: handling non-local would be pretty easy. Please add a TODO that mentions this. In any case, the check for dep.isNonLoca...

...don't hack volatile loads. 2. The dependency check is relatively expensive, so please reorder it to be checked after the check for alloca: + Value* pointer = L->getPointerOperand(); + MemDepResult dep = MD.getDependency(L); + + // Require pointer to have local dependency. + if(!dep.getInst() || dep.isNonLocal()) + return false; + + // Require pointer to be an alloca. + if(!isa<AllocaInst>(pointer)) + return false; 3. In this code, does the argument also need to be sret, or is any argument ok? + if(CallInst *C = dyn_cast<CallInst>(dep.getInst())) { + CallS...

Hello, This patch fixes PR2218. However, I'm not pretty sure that this optimization should be in MemCpyOpt. I think that GVN is good place as well. Regards -- Jakub Staszak -------------- next part -------------- A non-text attachment was scrubbed... Name: pr2218.patch Type: application/octet-stream Size: 6146 bytes Desc: not available URL:

Hello, I fixed my patch as you asked. Sorry for the delay, I'd been working on my SSU patch (http://lists.cs.uiuc.edu/pipermail/llvmdev/2009-August/025347.html ) I hope that everything is fine now. -Jakub -------------- next part -------------- A non-text attachment was scrubbed... Name: pr2218-3.patch Type: application/octet-stream Size: 7511 bytes Desc: not available URL:

...wouldn't look good I think. > > + MemoryDependenceAnalysis& MD = > getAnalysis<MemoryDependenceAnalysis>(); > > You can sink this link to right before the call to MD.getDependency. > > > > + // Require pointer to have local dependency. > + if (!dep.getInst() || dep.isNonLocal()) > + return false; > > Random thought: after this patch goes in, it would be interesting to > see how many queries get rejected because they are non-local: > handling non-local would be pretty easy. Please add a TODO that > mentions this. > >...

...ms/Scalar/DeadStoreElimination.cpp (working copy) > @@ -117,10 +117,12 @@ > > // If this is a store-store dependence, then the previous store > is dead so > // long as this store is at least as big as it. > - if (StoreInst *DepStore = dyn_cast<StoreInst>(InstDep.getInst())) > - if (TD && > - TD->getTypeStoreSize(DepStore->getOperand(0)->getType()) <= > - TD->getTypeStoreSize(SI->getOperand(0)->getType())) { > + if (StoreInst *DepStore = dyn_cast<StoreInst>(InstDep.getInst > ())) { > +...

Re-posting with better-looking code. Hans Wennborg wrote: > The attached patch makes DeadStoreElimination able to remove stores in > store-store dependencies when the operand types are equal, even if there > is no TargetData available. > > / Hans > > > ------------------------------------------------------------------------ > >

...10.22/"); it shows the exception Exception in thread "main" java.lang.UnsatisfiedLinkError: Unable to load library 'virt': The specified module could not be found. ??????? at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:164) ??????? at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:237) ??????? at com.sun.jna.Library$Handler.<init>(Library.java:140) ??????? at com.sun.jna.Native.loadLibrary(Native.java:374) ??????? at com.sun.jna.Native.loadLibrary(Native.java:359) ??????? at org.libvirt.jna.Libvirt.<clinit>(Unknown Source) ??????? at org.l...

...//default. Exception in thread "main" java.lang.UnsatisfiedLinkError: Unable to load library 'virt': libvirt.so: cannot open shared object file: No such file or directory at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:164) at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:237) at com.sun.jna.Library$Handler.<init>(Library.java:140) at com.sun.jna.Native.loadLibrary(Native.java:374) at com.sun.jna.Native.loadLibrary(Native.java:359) at org.libvirt.jna.Libvirt.<clinit>(Unknown Source) at org.li...

The attached patch makes DeadStoreElimination able to remove stores in store-store dependencies when the operand types are equal, even if there is no TargetData available. / Hans -------------- next part -------------- A non-text attachment was scrubbed... Name: DeadStoreElimination.patch Type: text/x-patch Size: 812 bytes Desc: not available URL:

...ne is interested in taking a stab at it I would greatly appreciate it! Regards, Dan require ''java'' # The Win32 module serves as a namespace only. module Win32 class API class Error < StandardError; end private KERNEL32 = com.sun.jna.NativeLibrary.getInstance(''kernel32'') LoadLibrary = KERNEL32.getFunction(''LoadLibraryA'') GetProcAddress = KERNEL32.getFunction(''GetProcAddress'') FormatMessageA = KERNEL32.getFunction(''FormatMessageA'') LocalFree =...

...rs() << *i << "\n"; // look for loads and stores if (i->mayReadFromMemory() || i->mayWriteToMemory()) { // get dependence for this instruction MemDepResult d = MDA->getDependency(i); if (d.isClobber()) errs() << "clobber " << *(d.getInst()); if (d.isDef()) errs() << "def " << *(d.getInst()); if (d.isNonLocal()) { errs() << "\tnot defined in this block\n"; BasicBlock *bb = i->getParent(); SmallVectorImpl<NonLocalDepResult> result(4); bool isLoad = false; AliasAnalysis::Locat...

...y() && "Uses remain when a value is destroyed!"' failed. As a separate but probably related detail, the function 'invoke foo' is not being inserted in the foo2 IR. The foo2 invoke generation looks like this: llvm::Module* module = Compiler::Services::SymbolResolver::getInstance()->resolveOrCreateModule( buildParameters.getLLVMContext() , buildParameters.getModuleDefinition() ); HAssertMsg( 0 != module , " null module "); llvm::Module* excptModule = Compiler::Services::SymbolResolver::getInstance()->resolv...

...tion.cpp (working copy) >> @@ -117,10 +117,12 @@ >> >> // If this is a store-store dependence, then the previous store is >> dead so >> // long as this store is at least as big as it. >> - if (StoreInst *DepStore = dyn_cast<StoreInst>(InstDep.getInst())) >> - if (TD && >> - TD->getTypeStoreSize(DepStore->getOperand(0)->getType()) <= >> - TD->getTypeStoreSize(SI->getOperand(0)->getType())) { >> + if (StoreInst *DepStore = dyn_cast<StoreInst>(InstDep.getInst()))...

...results); for(llvm::SmallVector<llvm::NonLocalDepResult, 16>::iterator II = results.begin(), EE = results.end(); !pick && II != EE; ++II) { const llvm::MemDepResult &result = II->getResult(); if(llvm::Instruction *dep = result.getInst()) { if(llvm::StoreInst *store = llvm::dyn_cast<llvm::StoreInst>(dep)) pick |= (stores.count(store) != 0); } } #else llvm::MemDepResult result = mda->getDependency(*I); if(llvm::Instruction *d...

...ption : Exception in thread "main" java.lang.UnsatisfiedLinkError: %1 is not a valid Win32 application. at com.sun.jna.Native.open(Native Method) at com.sun.jna.Native.open(Native.java:1718) at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:210) at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:322) at com.sun.jna.Library$Handler.<init>(Library.java:142) at com.sun.jna.Native.loadLibrary(Native.java:387) at com.sun.jna.Native.loadLibrary(Native.java:366) at org.libvirt.jna.Libvirt.<clinit>(Unknown Source) at org.libvirt.Library.<clinit>(Unknow...

I MAY be able to derive something out of the present example given here : http://blog.codeinmotion.com/index.php/2006/12/22/pdf-generation-in-ruby-on-rails/ but this deals with filling out forms. Is there a simpler example that just allows you to talk to itext , send it some plain text and get back a pdf and then send that pdf to the user as downloadable / renderable data? -- Posted via

...2. The dependency check is relatively expensive, so please reorder > it to be checked after the check for alloca: > > + Value* pointer = L->getPointerOperand(); > + MemDepResult dep = MD.getDependency(L); > + > + // Require pointer to have local dependency. > + if(!dep.getInst() || dep.isNonLocal()) > + return false; > + > + // Require pointer to be an alloca. > + if(!isa<AllocaInst>(pointer)) > + return false; > > > 3. In this code, does the argument also need to be sret, or is any > argument ok? > > + if(CallInst *C = d...

...d only one dep for a instruction.I want to get all dependences for an instruction. MemoryDependenceAnalysis &mda = getAnalysis<MemoryDependenceAnalysis>(); MemDepResult mdr = mda.getDependency(inst); if (mdr.isDef()) { Instruction *dep = mdr.getInst(); if (isa<LoadInst>(inst)) { if (isa<StoreInst>(dep)) { //READ AFTER WRITE } } if (isa<StoreInst>(inst)) { if (isa<LoadInst>(dep)) {...