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2008-06-27Reverting broken patch r52803.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52806 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-27Don't perform expensive queries checking for super and sub registers when we ↵Owen Anderson
know that there aren't any. This speed up LiveVariables on instcombine at -O0 -g from 0.3855s to 0.3503s. Look for more improvements in this area soon! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52804 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-27- Remove a use of std::vector.Bill Wendling
- Make sure that we're not recalculating the size of a vector that never changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52803 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-27Refactor the DebugInfoDesc stuff out of the MachineModuleInfo file. Clean upBill Wendling
some uses of std::vector, where it's return std::vector by value. Yuck! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52800 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-26duncan points out that isOperationLegal includes a check forChris Lattner
type legality. Thanks Duncan! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52786 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-26Don't create a whole new string just to copy the elements into it.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52785 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-26Fixes the last x86-64 test failure in compat.exp:Dale Johannesen
<16 x float> is 64-byte aligned (for some reason), which gets us into the stack realignment code. The computation changing FP-relative offsets to SP-relative was broken, assiging a spill temp to a location also used for parameter passing. This fixes it by rounding up the stack frame to a multiple of the largest alignment (I concluded it wasn't fixable without doing this, but I'm not very sure.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52750 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-26Move GetConstantStringInfo to lib/Analysis. RemoveEric Christopher
string output routine from Constant. Update all callers. Change debug intrinsic api slightly to accomodate move of routine, these now return values instead of strings. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52748 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-26when we know the signbit of an input to uint_to_fp is zero,Chris Lattner
change it to sint_to_fp on targets where that is cheaper (and visaversa of course). This allows us to compile uint_to_fp to: _test: movl 4(%esp), %eax shrl $23, %eax cvtsi2ss %eax, %xmm0 movl 8(%esp), %eax movss %xmm0, (%eax) ret instead of: .align 3 LCPI1_0: ## double .long 0 ## double least significant word 4.5036e+15 .long 1127219200 ## double most significant word 4.5036e+15 .text .align 4,0x90 .globl _test _test: subl $12, %esp movl 16(%esp), %eax shrl $23, %eax movl %eax, (%esp) movl $1127219200, 4(%esp) movsd (%esp), %xmm0 subsd LCPI1_0, %xmm0 cvtsd2ss %xmm0, %xmm0 movl 20(%esp), %eax movss %xmm0, (%eax) addl $12, %esp ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52747 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-25Remember which MachineOperand we were processing, so we don't have to scan ↵Owen Anderson
the list to find it again later. This speeds up live intervals from 0.37s to 0.30s on instcombine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52745 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-25Fix the text in an assert string.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52744 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-25- Fix a x86 vector isel bug: illegal transformation of a vector_shuffle into aEvan Cheng
shift. - Add a readme entry for a missing vector_shuffle optimization that results in awful codegen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52740 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-25Add support for expanding PPC 128 bit floats.Duncan Sands
For this it is convenient to permit floats to be used with EXTRACT_ELEMENT, so I tweaked things to allow that. I also added libcalls for ppcf128 to i32 forms of FP_TO_XINT, since they exist in libgcc and this case can certainly occur (and does occur in the testsuite) - before the i64 libcall was being used. Also, the XINT_TO_FP result seemed to be wrong when the argument is an i128: the wrong fudge factor was added (the i32 and i64 cases were handled directly, but the i128 code fell through to some generic softening code which seemed to think it was i64 to f32!). So I fixed it by adding a fudge factor that I found in my breakfast cereal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52739 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-25Add/complete support for integer and floatDuncan Sands
select_cc and friends. This code could be factorized a bit but I'm not sure that it's worth it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52724 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-25Remove the OrigVT member from AtomicSDNode, as it is redundant withDan Gohman
the base SDNode's VTList. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52722 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-25Added MemOperands to Atomic operations since Atomics touches memory.Mon P Wang
Added abstract class MemSDNode for any Node that have an associated MemOperand Changed atomic.lcs => atomic.cmp.swap, atomic.las => atomic.load.add, and atomic.lss => atomic.load.sub git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52706 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-25Enable two-address remat by default.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52701 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-24Use SmallVector instead of std::vector for a minor compile time improvement.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52689 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-23A brief survey of priority_queue usage in the tree turned this upDan Gohman
as a questionable case, but the code isn't actually needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52657 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-23This situation can occur:Bill Wendling
,------. | | | v | t2 = phi ... t1 ... | | | v | t1 = ... | ... = ... t1 ... | | `------' where there is a use in a PHI node that's a predecessor to the defining block. We don't want to mark all predecessors as having the value "alive" in this case. Also, the assert was too restrictive and didn't handle this case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52655 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-23Use the new PriorityQueue in ScheduleDAGList too, which alsoDan Gohman
needs arbitrary-element removal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52654 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-23Use getMBBEndIdx rather than assuming that the end is right after the last ↵Owen Anderson
instruction in the block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52649 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-23Remove option used to debug stack coloring bugs. It's no longer needed since ↵Evan Cheng
stack coloring is now bug free. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52644 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-23Move a DenseMap's declaration outside of a loop, and just callDan Gohman
clear() on each iteration. This avoids allocating and deallocating all of DenseMap's memory on each iteration. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52642 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-23Instead of adding an isSS field to LiveInterval to denote stack slot. Use ↵Evan Cheng
top bit of 'reg' instead. If the top bit is set, than the LiveInterval represents a stack slot live interval. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52639 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-23Duncan pointed out this code could be tidied.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52624 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-23Port some integer multiplication fixes from LegalizeDAG.Duncan Sands
Bail out with an error if there is no libcall available for the given size of integer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52622 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-23Support for expanding the result of EXTRACT_ELEMENT.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52621 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-23Cleanup up LegalizeTypes handling of loads andDuncan Sands
stores. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52620 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-22Make custom lowering of ADD work correctly. ThisDuncan Sands
fixes PR2476; patch by Richard Osborne. The same problem exists for a bunch of other operators, but I'm ignoring this because they will be automagically fixed when the new LegalizeTypes infrastructure lands, since it already solves this problem centrally. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52610 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21Simplify some getNode calls.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52604 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21canClobberPhysRegDefs shouldn't called without checking hasPhysRegDefs;Dan Gohman
check this with an assert. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52603 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21Use clear() to zero an existing APInt.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52601 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21Use back() instead of [size()-1].Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52600 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21Remove a redundant return.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52585 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21Remove ScheduleDAG's SUnitMap altogether. Instead, use SDNode's NodeIdDan Gohman
field, which is otherwise unused after instruction selection, as an index into the SUnit array. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52583 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21Add a priority queue class, which is a wrapper around std::priority_queueDan Gohman
and provides fairly efficient removal of arbitrary elements. Switch ScheduleDAGRRList from std::set to this new priority queue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52582 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21Support for load/store of expanded float types. IDuncan Sands
don't know if a truncating store is possible here, but added support for it anyway. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52577 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21Change ScheduleDAG's SUnitMap from DenseMap<SDNode*, vector<SUnit*> >Dan Gohman
to DenseMap<SDNode*, SUnit*>, and adjust the way cloned SUnit nodes are handled so that only the original node needs to be in the map. This speeds up llc on 447.dealII.llvm.bc by about 2%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52576 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21Undo spill weight tweak. Need to investigate the performance regressions.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52572 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-21Simplify some template parameterization.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52571 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20Enhanced heuristic to determine the *best* register to spill. Instead of ↵Evan Cheng
picking the register with the lowest spill weight. Consider (up to) 2 additional registers with spill weights that are close to the lowest spill weight. The one with fewest defs and uses that conflicts with the current interval (weighted by loop depth) is the spill candidate. This is not always a win, but there are much more wins than loses and wins tend to be more noticeable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52554 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20Share some code that is common between integer andDuncan Sands
float expansion (and sometimes vector splitting too). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52548 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20Rename the operation of turning a float type into anDuncan Sands
integer of the same type. Before it was "promotion", but this is confusing because it is quite different to promotion of integers. Call it "softening" instead, inspired by "soft float". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52546 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20Clean up some uses of std::distance, now that we have allnodes_size.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52545 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20Teach ReturnInst lowering about aggregate return values.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52522 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20Fix the index calculations for the extractvalue lowering code.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52517 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20Simplify the ComputeLinearIndex logic and fix a few bugs.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52516 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19ISD::UNDEF should be expanded recursively / iteratively.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52508 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19Use the transferSuccessors helper function.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52495 91177308-0d34-0410-b5e6-96231b3b80d8
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