search for: pipeling

Other suggestions 1/ Write a separate MI pass to split the macro MI which was generated earlier as a result of ISel to multiple MIs. 2/ Take the decision of splitting later in the pipeling during MC lowering. Decision about when you need to split should be driven by your intent to do any further processing over constituent instruction. ~ Jatin On Fri, Mar 2, 2018 at 8:19 PM, Jatin Bhateja <jatin.bhateja at gmail.com> wrote: > Hi Nagaraju, > > Few suggestions spli...

Hello everyone, I want to do a LLVM server which is multi-thread, translating independent LLVM IR files per thread in parallel. I am curious about the status of multi-thread LLVM. Any replies is appreciated. Ching -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20120703/133299ec/attachment.html>

Hi Nagaraju, Few suggestions split this into following steps. 1/ DAG Legalization : Custom lower the instruction (branch in your case) appropriately in legalization to target specific DAG nodes and glue the nodes together which you want scheduler should schedule together. 2/ Instruction Selection : Define patterns to match the custom DAG nodes. Thus actual decision of creating multiple

Hi All, I am working on a target which requires to generated two instructions for a single branch instruction. ex: imm 1 br r4,0xabcd branch address is 0x1abcd, imm has the upper 16 bits and br has lower 16 bits. Can anyone let me know how to write these kind of patterns in the InstrInfo.td file. Thanks in Advance, Nagaraju

...In modern processor microarchitecture, pipelining is a major approach to achieve higher clock speed. Super-pipelining involves pipelining the microarchitecture to finer granularities. With far more instructions in-flight in a super-pipelined microarchitecture, handling of events that disrupt the pipeling, such as cache mises, interrupts and branch misprediction, can be costly. A case in point is the Intel Itanium architecture, EPIC (explicitly parallel intruction computing). EPIC enables programmer or compiler to indicate the inherent parallelism of programs *explicitly* in the instruction sequen...