search for: copyfrom

...ap<{anonymous}::Expression, unsigned int>, KeyT = {anonymous}::Expression, ValueT = unsigned int, KeyInfoT = llvm::DenseMapInfo<{anonymous}::Expression>]’: /home/zeus/masterLLVM/llvm/include/llvm/ADT/DenseMap.h:600:5: instantiated from ‘void llvm::DenseMap<KeyT, ValueT, KeyInfoT>::copyFrom(const llvm::DenseMap<KeyT, ValueT, KeyInfoT>&) [with KeyT = {anonymous}::Expression, ValueT = unsigned int, KeyInfoT = llvm::DenseMapInfo<{anonymous}::Expression>, llvm::DenseMap<KeyT, ValueT, KeyInfoT> = llvm::DenseMap<{anonymous}::Expression, unsigned int>]’ /home/zeus...

Hello everybody, hi Evan, this patch changes the lowering of arguments for tail call optimized calls. Before arguments that could be overwritten by each other were explicitly lowered to a stack slot, not giving the register allocator a chance to optimize. Now a sequence of copyto/copyfrom virtual registers ensures that arguments are loaded in (virtual) registers before they are lowered to the stack slot (and might overwrite each other). Also parameter stack slots are marked mutable for (potentially) tail caling functions. okay to commit? regards arnold -------------- next part ---...

...ression, unsigned int>, KeyT > = {anonymous}::Expression, ValueT = unsigned int, KeyInfoT = > llvm::DenseMapInfo<{anonymous}::Expression>]’: > /home/zeus/masterLLVM/llvm/include/llvm/ADT/DenseMap.h:600:5: instantiated > from ‘void llvm::DenseMap<KeyT, ValueT, KeyInfoT>::copyFrom(const > llvm::DenseMap<KeyT, ValueT, KeyInfoT>&) [with KeyT = > {anonymous}::Expression, ValueT = unsigned int, KeyInfoT = > llvm::DenseMapInfo<{anonymous}::Expression>, llvm::DenseMap<KeyT, ValueT, > KeyInfoT> = llvm::DenseMap<{anonymous}::Expression, unsigned...

...quot; > </div> <div dir="ltr" >Tim Northover responded with some useful insight but I did not really get a direct answer to my question on how to add MBB inputs (or if it's possible). The solution that I developed myself is to use virtual registers within MBBs and build CopyFrom/ToReg nodes at the BB boundaries with a physreg number, then add this physreg as a live-in where appropriate. This has been working for a few weeks now and, until I discovered this new issue where my live-in is ignored, had no known issues.</div> <div dir="ltr" > </div>...

...I create a value with a DAG.getUndef(myVT); call during instruction legalization, how can I access that value as input in another BB/DAG (also during instruction legalization) without worrying about live-ins and/or phi nodes? Can I create a single virtual register and build both a CopyToReg and a CopyFromReg node with it? I assumed that would break SSA. Perhaps I should have said that what stops me is that I don't know how to pass a newly created virtual register from one MBB/DAG to another. Tyler From: Matthias Braun <mbraun at apple.com> To: Tyler Kenney/Marlborough/IBM at IBMUS Cc...

<div class="socmaildefaultfont" dir="ltr" style="font-family:Arial;font-size:10.5pt" ><div class="socmaildefaultfont" dir="ltr" style="font-family:Arial;font-size:10.5pt" ><div dir="ltr" > </div> <div dir="ltr" >Hi all,</div> <div dir="ltr" > </div> <div