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2005-08-08Suck the base value out of the UsersToProcess vector into the BasedUserChris Lattner
class to simplify the code. Fuse two loops. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22721 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08Split MoveLoopVariantsToImediateField out from MoveImmediateValues. TheChris Lattner
first is a correctness thing, and the later is an optzn thing. This also is needed to support a future change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22720 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08Factor out some common code, and be smarter about when to emit load hi/loNate Begeman
code sequences. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22719 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08Allow tools with "consume after" options (like lli) to take more positionalChris Lattner
opts than they take directly. Thanks to John C for pointing this problem out to me! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22717 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08Remove getImmediateForOpcode, which is now dead.Chris Lattner
Patch by Jim Laskey. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22716 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08Add new immediate handling support for mul/div.Chris Lattner
Patch by Jim Laskey! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22715 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08Add support for OR/XOR/SUB immediates that are handled with the new immediateChris Lattner
way. This allows ORI/ORIS pairs, for example. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22714 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08Modify the ISD::AND opcode case to use new immediate constant predicates.Chris Lattner
Includes wider support for rotate and mask cases. Patch by Jim Laskey. I've requested that Jim add new regression tests the newly handled cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22712 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08Modify the ISD::ADD opcode case to use new immediate constant predicates.Chris Lattner
Includes support for 32-bit constants using addi/addis. Patch by Jim Laskey. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22711 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08Modify existing support functions to use new immediate constant predicates.Chris Lattner
Patch by Jim Laskey git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22710 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08Add support predicates for future immediate constant changes.Chris Lattner
Patch by Jim Laskey git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22709 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08Move IsRunOfOnes to a more logical place and rename to a proper predicate formChris Lattner
(lowercase isXXX). Patch by Jim Laskey. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22708 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08Fix JIT encoding of ppc mfocrf instruction; the operands were reversedNate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22707 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08Use the new 'moveBefore' method to simplify some code. Really, which isChris Lattner
easier to understand? :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22706 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08Reject command lines that have too many positional arguments passed (e.g.,Chris Lattner
'opt x y'). This fixes PR493. Patch contributed by Owen Anderson! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22705 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08Not all constants are legal immediates in load/store instructions.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22704 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08Implement LoopStrengthReduce/share_code_in_preheader.ll by having oneChris Lattner
rewriter for all code inserted into the preheader, which is never flushed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22702 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08Implement a simple optimization for the termination condition of the loop.Chris Lattner
The termination condition actually wants to use the post-incremented value of the loop, not a new indvar with an unusual base. On PPC, for example, this allows us to compile LoopStrengthReduce/exit_compare_live_range.ll to: _foo: li r2, 0 .LBB_foo_1: ; no_exit li r5, 0 stw r5, 0(r3) addi r2, r2, 1 cmpw cr0, r2, r4 bne .LBB_foo_1 ; no_exit blr instead of: _foo: li r2, 1 ;; IV starts at 1, not 0 .LBB_foo_1: ; no_exit li r5, 0 stw r5, 0(r3) addi r5, r2, 1 cmpw cr0, r2, r4 or r2, r5, r5 ;; Reg-reg copy, extra live range bne .LBB_foo_1 ; no_exit blr This implements LoopStrengthReduce/exit_compare_live_range.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22699 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08add new helper functionChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22698 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-08Handle 64-bit constant exprs on 64-bit targets.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22696 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-07All stats are "Number of ..."Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22694 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-07Add some simple folds that occur in bitfield cases. Fix a minor bug inChris Lattner
isHighOnes, where it would consider 0 to have high ones. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22693 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-07Fix typoCVS: ↵Chris Lattner
---------------------------------------------------------------------- git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22692 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-07add a small simplification that can be exposed after promotion/expansionChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22691 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-07* Use the new PHINode::hasConstantValue method to simplify some codeChris Lattner
* Teach this code to move allocas out of the loop when tail call eliminating a call marked 'tail'. This implements TailCallElim/move_alloca_for_tail_call.ll * Do not perform this transformation if a call is marked 'tail' and if there are allocas that we cannot move out of the loop in #2. Doing so would increase the stack usage of the function. This implements fixes PR615 and TailCallElim/dont-tce-tail-marked-call.ll. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22690 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05Consolidate the GPOpt stuff to all use the Subtarget, instead of stillChris Lattner
depending on the command line option. Now the command line option just sets the subtarget as appropriate. G5 opts will now default to on on G5-enabled nightly testers among other machines. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22688 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05adjust to change in getSubtarget() apiChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22687 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05Enable gp optimizations by default when available, even when a target tripleChris Lattner
is available, since the target triple doesn't specify whether to use gpopts or not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22685 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05add a noteChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22681 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05Change FindEarliestCallSeqEnd (used by libcall insertion) to use a set toChris Lattner
avoid revisiting nodes more than once. This eliminates a source of potentially exponential behavior. For a small function in 191.fma3d (hexah_stress_divergence_), this speeds up isel from taking > 20mins to taking 0.07s. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22680 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05Fix a use-of-dangling-pointer bug, from the introduction of SrcValue's.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22679 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05Fix a latent bug in the libcall inserter that was exposed by Nate's patchChris Lattner
yesterday. This fixes whetstone and a bunch of programs in the External tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22678 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05don't crash when running the PPC backend on non-ppc hosts without specifyingChris Lattner
a subtarget. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22677 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05PHINode::hasConstantValue should never return the PHI itself, even if theChris Lattner
PHI is its only operand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22676 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05Fix an iterator invalidation problem when we decide a phi has a constant valueChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22675 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05Make sure to clean CastedPointers after casts are potentially deleted.Chris Lattner
This fixes LSR crashes on 301.apsi, 191.fma3d, and 189.lucas git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22673 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05now that hasConstantValue defaults to only returning values that dominateChris Lattner
the PHI node, this ugly code can vanish. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22672 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05Invoke instructions do not dominate all successorsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22671 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05Now that hasConstantValue is more careful w.r.t. returning values that onlyChris Lattner
dominate the PHI node, this code can go away. This also makes passes more aggressive, e.g. implementing Transforms/CondProp/phisimplify2.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22670 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05Use the bool argument to hasConstantValue to decide whether the client isChris Lattner
prepared to deal with return values that do not dominate the PHI. If we cannot prove that the result dominates the PHI node, do not return it if the client can't cope. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22669 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05This code can handle non-dominating instructionsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22667 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05Mark hasConstantValue as a const methodChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22666 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-04Add an extra parameter that Chris requestedNate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22665 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-04Fix a fixme in CondPropagate.cpp by moving a PhiNode optimization intoNate Begeman
BasicBlock's removePredecessor routine. This requires shuffling around the definition and implementation of hasContantValue from Utils.h,cpp into Instructions.h,cpp git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22664 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-04Modify how immediates are removed from base expressions to deal with the factChris Lattner
that the symbolic evaluator is not always able to use subtraction to remove expressions. This makes the code faster, and fixes the last crash on 178.galgel. Finally, add a statistic to see how many phi nodes are inserted. On 178.galgel, we get the follow stats: 2562 loop-reduce - Number of PHIs inserted 3927 loop-reduce - Number of GEPs strength reduced git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22662 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-04Fix a fixme in LegalizeDAGNate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22661 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-04Hack to naturally align doubles in the constant pool. Remove this once weNate Begeman
know what The Right Thing To Do is. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22660 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-04Use the new subtarget support to automatically choose the correct ABINate Begeman
and asm printer for PowerPC if one is not specified. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22659 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-04* Refactor some code into a new BasedUser::RewriteInstructionToUseNewBaseChris Lattner
method. * Fix a crash on 178.galgel, where we would insert expressions before PHI nodes instead of into the PHI node predecessor blocks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22657 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-04Fix a case that caused this to crash on 178.galgelChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22653 91177308-0d34-0410-b5e6-96231b3b80d8
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