aboutsummaryrefslogtreecommitdiff
path: root/lib/Transforms
AgeCommit message (Collapse)Author
2008-03-29make the common case of a single store (which clearly shouldn't be turnedChris Lattner
into a memset!) faster by avoiding an allocation of an std::list node. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48939 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-29give form-memset a significantly more sane heuristic, enable it by default.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48937 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-28make memset inference significantly more powerful: it can now handle Chris Lattner
memsets that initialize "structs of arrays" and other store sequences that are not sequential. This is still only enabled if you pass -form-memset-from-stores. The flag is not heavily tested and I haven't analyzed the perf regressions when -form-memset-from-stores is passed either, but this causes no make check regressions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48909 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-27PHI->removeIncomingValue may remove PHInode.Devang Patel
Increment iterator in advance. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48890 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-25Handle a special case xor undef, undef -> 0. Technically this should be ↵Evan Cheng
transformed to undef. But this is such a common idiom (misuse) we are going to handle it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48791 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-24Add incoming value from header only if phi node has any use inside the loop.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48738 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-24Increasing the inline limit from (overly conservative) 200 to 300. Given ↵Evan Cheng
each BB costs 20 and each instruction costs 5, 200 means a 4 BB function + 24 instructions (actually less because caller's size also contributes to it). Furthermore, double the limit when more than 10% of the callee instructions are vector instructions. Multimedia kernels tend to love inlining. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48725 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-24Temporarily disabling memset forming optimization. Add an option.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48720 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-24Transform (zext (or (icmp), (icmp))) to (or (zext (cimp), (zext icmp))) if ↵Evan Cheng
at least one of the (zext icmp) can be transformed to eliminate an icmp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48715 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-23Preserve calling convention during function cloningAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48708 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-22implement an initial hack at a straight-line store -> memset optimization.Chris Lattner
This fires dozens of times across spec and multisource, but I don't know if it actually speeds stuff up. Hopefully the testers will show something nice :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48680 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-22implement the logic for memset insertion and store deletion.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48679 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-22This is a partially implemented and currently disabled start of a storeChris Lattner
merging optimization. Nothing to see here, hopefully more later :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48670 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21Don't include <map> in Pass.h, which doesn't need it. This requiresDan Gohman
adding <map> to many files that actually do need it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48667 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21the size of a smallvector shouldn't be part of the interface to these methods.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48662 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21make gvn marginally faster by reallocating the lastSeenLoad map forChris Lattner
each basic block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48660 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21Minor cleanups and shrinkification.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48658 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21Handle getresult instructions in different basic blocksDan Gohman
from their aggregate operands by moving the getresult instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48657 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21FunctionExtractorPass has been superceded by GVExtractorPassAndrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48648 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21Fix the build for gcc-4.2.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48639 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21Teach masked value is zero about add and sub, and use MVIZ toChris Lattner
simplify things like (X & 4) >> 1 == 2 --> (X & 4) == 4. since it is obvious that the shift doesn't remove any bits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48631 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-20Incorporate feedback.Devang Patel
- Fix loop nest. - Use RetVals.size() - Check for null return value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48605 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-20C and Objective Caml bindings for mem2reg and reg2mem.Gordon Henriksen
Patch by Erick Tryzelaar. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48602 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-20Take the old function's name.Zhou Sheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48588 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-2080 col violation.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48573 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-19Add comment.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48567 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-19Remove dead options.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48556 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-17Update heuritics that estimates cost of call instructions.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48474 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-16C and Objective Caml bindings for several scalar transforms.Gordon Henriksen
Patch originally by Erick Tryzelaar, but has been modified somewhat. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48419 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14The inst combining of inttoptr into GEP with one index was using the bit size ofBill Wendling
the type instead of the byte size. This was causing troublesome mis-compilations. True to form, this took 2 days to find and is a one-line fix. :-P git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48354 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13Fix a bug in GVN that Duncan noticed, where we potentially need to insert a Owen Anderson
pointer bitcast when performing return slot optimization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48343 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13Update -mem2reg to use succ_iterator instead of iterating across TerminatorInstNick Lewycky
successors. This makes it support nounwind. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48320 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12Reimplement the parameter attributes support, phase #1. hilights:Chris Lattner
1. There is now a "PAListPtr" class, which is a smart pointer around the underlying uniqued parameter attribute list object, and manages its refcount. It is now impossible to mess up the refcount. 2. PAListPtr is now the main interface to the underlying object, and the underlying object is now completely opaque. 3. Implementation details like SmallVector and FoldingSet are now no longer part of the interface. 4. You can create a PAListPtr with an arbitrary sequence of ParamAttrsWithIndex's, no need to make a SmallVector of a specific size (you can just use an array or scalar or vector if you wish). 5. All the client code that had to check for a null pointer before dereferencing the pointer is simplified to just access the PAListPtr directly. 6. The interfaces for adding attrs to a list and removing them is a bit simpler. Phase #2 will rename some stuff (e.g. PAListPtr) and do other less invasive changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48289 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12Improve the return slot optimization to be both more aggressive (not limited ↵Owen Anderson
to sret parameters), and safer (when the passed pointer might be invalid). Thanks to Duncan and Chris for the idea behind this, and extra thanks to Duncan for helping me work out the trap-safety. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48280 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12Check multiple return values.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48267 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12Fix attribute handling.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48262 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11Handle multiple ret values.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48254 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11Initialize.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48253 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11Check to see if a two-entry PHI block can be simplifiedDan Gohman
before trying to merge the block into its predecessors. This allows two-entry-phi-return.ll to be simplified into a single basic block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48252 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11Skip functions that return multiple values.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48233 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11Become multiple return value aware.Devang Patel
Right now, the pass does not optimize tail recursions involving multiple return values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48228 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11Add TODO reminder.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48227 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11Initial multiple return values support.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48210 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10Restore optimization that merges blocks when inline function Devang Patel
has single return value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48162 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10SimplifyDevang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48161 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10simplifyDevang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48160 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10Turn unwind_to into "unwinds to".Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48123 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-09Fix some compilation errors on msvc:Ted Kremenek
- "Redefinition of I" (iterator masks previous definition) - include missing header file Patch by Argiris Kirtzidis! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48115 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-09And again.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48112 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-09Braces belong here. No functionality change.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48111 91177308-0d34-0410-b5e6-96231b3b80d8
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-06-24 09:45:31 +0000