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Hi, I'm pursuing M.Tech course. As a part of the project work i'm using LLVM as back-end. My project area is "Enhancing the performance of V8 javascript engine using LLVM as a back-end". Now i'm writing code for shift left(SHL) operator. I had my own Value Structure .. it's like this Struct Value { void *val ; char type; } The "char type" holds

Hi, Is there a recommended way to round to the nearest whole (x86 RC field of FPU control = 00) ? It appears an intentional truncation instruction is generated (if ms disassembly is correct): IRBuilder<>::CreateFPToSI %1 = fptosi double %0 to i64 00370025 fisttp qword ptr [esp] Thanks, Bob -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20100928/42385881/attachment.html>

...mes Molloy <James.Molloy at arm.com> >> wrote: >> Hi Sarath, >> >> If you can only hold doubles (not integers), and you originally converted >> the doubles to integers to do an integer shift, why can you not just convert >> the result back to a double using CreateFPToSI ? >> >> CreateFPToSI(CreateShr(CreateSIToFP(arg0), CreateSIToFP(arg1))) >> >> Cheers, >> >> James >> >> From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On >> Behalf Of sarath chandra >> Sent: 22 September 2011...

...value structure) On Thu, Sep 22, 2011 at 3:12 PM, James Molloy <James.Molloy at arm.com> wrote: Hi Sarath, If you can only hold doubles (not integers), and you originally converted the doubles to integers to do an integer shift, why can you not just convert the result back to a double using CreateFPToSI ? CreateFPToSI(CreateShr(CreateSIToFP(arg0), CreateSIToFP(arg1))) Cheers, James From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On Behalf Of sarath chandra Sent: 22 September 2011 10:37 To: llvmdev at cs.uiuc.edu Subject: [LLVMdev] Need help in converting int to dou...

...at 3:12 PM, James Molloy <James.Molloy at arm.com<mailto:James.Molloy at arm.com>> wrote: Hi Sarath, If you can only hold doubles (not integers), and you originally converted the doubles to integers to do an integer shift, why can you not just convert the result back to a double using CreateFPToSI ? CreateFPToSI(CreateShr(CreateSIToFP(arg0), CreateSIToFP(arg1))) Cheers, James From: llvmdev-bounces at cs.uiuc.edu<mailto:llvmdev-bounces at cs.uiuc.edu> [mailto:llvmdev-bounces at cs.uiuc.edu<mailto:llvmdev-bounces at cs.uiuc.edu>] On Behalf Of sarath chandra Sent: 22 September 2...

...22, 2011 at 3:12 PM, James Molloy <James.Molloy at arm.com> > wrote: > Hi Sarath, > > If you can only hold doubles (not integers), and you originally converted > the doubles to integers to do an integer shift, why can you not just convert > the result back to a double using CreateFPToSI ? > > CreateFPToSI(CreateShr(CreateSIToFP(arg0), CreateSIToFP(arg1))) > > Cheers, > > James > > From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On > Behalf Of sarath chandra > Sent: 22 September 2011 10:37 > To: llvmdev at cs.uiuc.edu &g...

...ar *Name > = "") { > + return CreateCast(Instruction::SExt, V, DestTy, Name); > + } > + Value *CreateFPToUI(Value *V, const Type *DestTy, const char > *Name = ""){ > + return CreateCast(Instruction::FPToUI, V, DestTy, Name); > + } > + Value *CreateFPToSI(Value *V, const Type *DestTy, const char > *Name = ""){ > + return CreateCast(Instruction::FPToSI, V, DestTy, Name); > + } > + Value *CreateUIToFP(Value *V, const Type *DestTy, const char > *Name = ""){ > + return CreateCast(Instruction::UIToFP, V,...

Devang Patel wrote: > On Dec 15, 2007, at 12:15 PM, Richard Pennington wrote: > >> I got the current version of LLVM via svn yesterday and modified my >> code to >> use the LLVMFoldingBuilder. Very nice! >> >> My question is this: I noticed that the folding builder doesn't fold >> some >> operations, e.g. casts. Is there some reason why? If