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2012-11-27X86: do not fold load instructions such as [V]MOVS[S|D] to other instructionsManman Ren
when the destination register is wider than the memory load. These load instructions load from m32 or m64 and set the upper bits to zero, while the folded instructions may accept m128. rdar://12721174 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168710 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26Remove the X86 Maximal Stack Alignment Check pass as it is no longer necessary.Chad Rosier
This pass was conservative in that it always reserved the FP to enable dynamic stack realignment, which allowed the RA to use aligned spills for vector registers. This happens even when spills were not necessary. The RA has since been improved to use unaligned spills when necessary. The new behavior is to realign the stack if the frame pointer was already reserved for some other reason, but don't reserve the frame pointer just because a function contains vector virtual registers. Part of rdar://12719844 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168627 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26Normalize splat 256bit vectors with 8 elements.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168600 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26Decouple MCInstBuilder from the streamer per Eli's request.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168597 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26Add MCInstBuilder, a utility class to simplify MCInst creation similar to ↵Benjamin Kramer
MachineInstrBuilder. Simplify some repetitive code with it. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168587 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-21Fix execution domain for packed FMA4 instructions.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168417 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-21Mark ISD::FMA as Legal instead of custom for x86 with FMA3/FMA4. Needed so ↵Craig Topper
that llvm.muladd can be converted to ISD::FMA for fp_contract. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168413 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-21Make calcLiveInMask method static.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168409 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-21Make isScratchReg and isFPCopy methods static.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168407 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-20Add obvious constantness.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168396 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-20Intel OCL built-ins calling conventions now support MacOS 32-bit.Elena Demikhovsky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168359 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-16Add the Erlang/HiPE calling convention, patch by Yiannis Tsiouris.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168166 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-16Use roundps/pd for llvm.ceil, llvm.trunc, llvm.rint, and llvm.nearbyint of ↵Craig Topper
vector types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168141 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-15Return 0 instead of false.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168076 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-15Simplify code.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168064 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-15Add llvm.ceil, llvm.trunc, llvm.rint, llvm.nearbyint intrinsics.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168025 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14Remove unneeded #includes.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168006 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14X86: Enable SSE memory intrinsics even when stack alignment is less than 16 ↵Benjamin Kramer
bytes. The stack realignment code was fixed to work when there is stack realignment and a dynamic alloca is present so this shouldn't cause correctness issues anymore. Note that this also enables generation of AVX instructions for memset under the assumptions: - Unaligned loads/stores are always fast on CPUs supporting AVX - AVX is not slower than SSE We may need some tweaked heuristics if one of those assumptions turns out not to be true. Effectively reverts r58317. Part of PR2962. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167967 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14X86: Better diagnostics for 32-bit vs. 64-bit mode mismatches.Jim Grosbach
When an instruction as written requires 32-bit mode and we're assembling in 64-bit mode, or vice-versa, issue a more specific diagnostic about what's wrong. rdar://12700702 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167937 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14Factor out an overly replicated typecast. No functional change.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167916 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14Use TARGET2 relocation for TType references on ARM.Anton Korobeynikov
Do some cleanup of the code while here. Inspired by patch by Logan Chien! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167904 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13X86: when constructing VZEXT_LOAD from other loads, makes sure its outputManman Ren
chain is correctly setup. As an example, if the original load must happen before later stores, we need to make sure the constructed VZEXT_LOAD is constrained to be before the stores. rdar://12684358 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167859 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12Fix PR14314Michael Liao
- Fix operand order for atomic sub, where the minuend is the value loaded from memory and the subtrahend is the parameter specified. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167718 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-11Move some helper methods to being static functions in the implementation file.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167696 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-10Remove unnecessary subtraction and addition by 1 around a couple for loops.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167673 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-10Tidy up spacing. No functional change.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167671 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-10Removed unimplemented method declaration.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167670 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-10Simplify custom emitter code for pcmp(e/i)str(i/m) and make the helper ↵Craig Topper
functions static. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167669 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-10Cleanup pcmp(e/i)str(m/i) instruction definitions and load folding support.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167652 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-09Switch FreeBSD/i386 back to 4byte stack alignment. This partiallyRoman Divacky
reverts r126226. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167632 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-09indentNadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167607 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-08Add support of RTM from TSX extensionMichael Liao
- Add RTM code generation support throught 3 X86 intrinsics: xbegin()/xend() to start/end a transaction region, and xabort() to abort a tranaction region git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167573 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-06Simplify code. No functionality change.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167505 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-06Make the helper functions static. No functional change.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167501 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-06CostModel: add another known vector trunc optimization.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167488 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-06Cost Model: add tables for some avx type-conversion hacks.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167480 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-06Remove tailing whitespacesMichael Liao
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167445 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-05Refactor the getTypeLegalizationCost interface. No functionality change.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167422 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-05CostModel: Add tables for the common x86 compares.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167421 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-05Suppress signed/unsigned comparison warning.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167410 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-05Cost Model: Normalize the insert/extract index when splitting typesNadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167402 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-05Implement the cost of abnormal x86 instruction lowering as a table.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167395 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-04Remove alignments from folding tables for scalar FMA4 instructions.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167366 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-03X86 CostModel: Add support for a some of the common arithmetic instructions ↵Nadav Rotem
for SSE4, AVX and AVX2. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167347 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-02Add a stub for the x86 cost model impl. Implement a basic cost rule for ↵Nadav Rotem
inserting/extracting from XMM registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167333 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-01Revert the majority of the next patch in the address space series:Chandler Carruth
r165941: Resubmit the changes to llvm core to update the functions to support different pointer sizes on a per address space basis. Despite this commit log, this change primarily changed stuff outside of VMCore, and those changes do not carry any tests for correctness (or even plausibility), and we have consistently found questionable or flat out incorrect cases in these changes. Most of them are probably correct, but we need to devise a system that makes it more clear when we have handled the address space concerns correctly, and ideally each pass that gets updated would receive an accompanying test case that exercises that pass specificaly w.r.t. alternate address spaces. However, from this commit, I have retained the new C API entry points. Those were an orthogonal change that probably should have been split apart, but they seem entirely good. In several places the changes were very obvious cleanups with no actual multiple address space code added; these I have not reverted when I spotted them. In a few other places there were merge conflicts due to a cleaner solution being implemented later, often not using address spaces at all. In those cases, I've preserved the new code which isn't address space dependent. This is part of my ongoing effort to clean out the partial address space code which carries high risk and low test coverage, and not likely to be finished before the 3.2 release looms closer. Duncan and I would both like to see the above issues addressed before we return to these changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167222 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-01Revert the series of commits starting with r166578 which introduced theChandler Carruth
getIntPtrType support for multiple address spaces via a pointer type, and also introduced a crasher bug in the constant folder reported in PR14233. These commits also contained several problems that should really be addressed before they are re-committed. I have avoided reverting various cleanups to the DataLayout APIs that are reasonable to have moving forward in order to reduce the amount of churn, and minimize the number of commits that were reverted. I've also manually updated merge conflicts and manually arranged for the getIntPtrType function to stay in DataLayout and to be defined in a plausible way after this revert. Thanks to Duncan for working through this exact strategy with me, and Nick Lewycky for tracking down the really annoying crasher this triggered. (Test case to follow in its own commit.) After discussing with Duncan extensively, and based on a note from Micah, I'm going to continue to back out some more of the more problematic patches in this series in order to ensure we go into the LLVM 3.2 branch with a reasonable story here. I'll send a note to llvmdev explaining what's going on and why. Summary of reverted revisions: r166634: Fix a compiler warning with an unused variable. r166607: Add some cleanup to the DataLayout changes requested by Chandler. r166596: Revert "Back out r166591, not sure why this made it through since I cancelled the command. Bleh, sorry about this! r166591: Delete a directory that wasn't supposed to be checked in yet. r166578: Add in support for getIntPtrType to get the pointer type based on the address space. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167221 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-01Cleanup another place redundant SP maintainedMichael Liao
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167209 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31(For X86) Enhancement to add-carray/sub-borrow (adc/sbb) optimization.Shuxin Yang
The adc/sbb optimization is to able to convert following expression into a single adc/sbb instruction: (ult) ... = x + 1 // where the ult is unsigned-less-than comparison (ult) ... = x - 1 This change is to flip the "x >u y" (i.e. ugt comparison) in order to expose the adc/sbb opportunity. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167180 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31Add scalar forms of FMA4 VFNMSUB/VFNMADD to folding tables. Patch from ↵Craig Topper
Cameron McInally. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167106 91177308-0d34-0410-b5e6-96231b3b80d8
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