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* Do away with kill / dead maps. Move kill / dead info onto MI's.Evan Cheng2006-11-151-81/+107
| | | | llvm-svn: 31759
* Add implicit def / use operands to MachineInstr.Evan Cheng2006-11-101-17/+2
| | | | llvm-svn: 31633
* For PR786:Reid Spencer2006-11-021-1/+0
| | | | | | | | | | Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting fall out by removing unused variables. Remaining warnings have to do with unused functions (I didn't want to delete code without review) and unused variables in generated code. Maintainers should clean up the remaining issues when they see them. All changes pass DejaGnu tests and Olden. llvm-svn: 31380
* Fix for PR929. The PHI nodes were being gone through for each instructionBill Wendling2006-10-031-21/+26
| | | | | | | | in a successor block for every block...resulting in some O(N^k) algorithm which wasn't very good for performance. Calculating this information up front and keeping it in a map made it much faster. llvm-svn: 30697
* Only call isUse/isDef on register operandsChris Lattner2006-09-051-2/+2
| | | | llvm-svn: 30118
* Move two methods out of line, make them work when the record for a machineChris Lattner2006-09-031-0/+36
| | | | | | instruction includes physregs. llvm-svn: 30061
* Eliminate RegisterAnalysis. RegisterPass now does all that is necessary.Chris Lattner2006-08-271-1/+1
| | | | llvm-svn: 29921
* Eliminate data relocations by using NULL instead of global empty list.Jim Laskey2006-07-211-6/+10
| | | | llvm-svn: 29250
* Remove a bunch more dead V9 specific stuffChris Lattner2006-05-041-8/+6
| | | | llvm-svn: 28094
* Add a LiveVariables::VarInfo::dump methodChris Lattner2006-01-041-0/+20
| | | | llvm-svn: 25080
* Add section switching to common code generator code. Add a couple ofChris Lattner2005-11-211-2/+3
| | | | | | asserts. llvm-svn: 24445
* Implement LiveVariables.h changeChris Lattner2005-08-241-0/+30
| | | | llvm-svn: 22994
* adjust to new live variables interfaceChris Lattner2005-08-231-22/+24
| | | | llvm-svn: 22992
* allow a virtual register to be associated with live-in values.Chris Lattner2005-05-131-4/+4
| | | | llvm-svn: 21927
* Remove trailing whitespaceMisha Brukman2005-04-211-10/+10
| | | | llvm-svn: 21420
* Consider the livein/out set for a function, allowing targets to not have toChris Lattner2005-04-091-0/+20
| | | | | | use ugly imp_def/imp_uses for arguments and return values. llvm-svn: 21180
* Just in case, handle something that is both a use and a def.Chris Lattner2005-01-191-1/+2
| | | | llvm-svn: 19696
* When an instruction moves, make sure to update the VarInfo::Kills list asChris Lattner2005-01-191-3/+10
| | | | | | | well as all of teh other stuff in livevar. This fixes the compiler crash on fourinarow last night. llvm-svn: 19695
* Do not use variable sized arrays in C++, they are non-portable. PatchChris Lattner2004-10-251-5/+5
| | | | | | contributed by Morten Ofstad llvm-svn: 17217
* Changes For Bug 352Reid Spencer2004-09-011-2/+2
| | | | | | | | Move include/Config and include/Support into include/llvm/Config, include/llvm/ADT and include/llvm/Support. From here on out, all LLVM public header files must be under include/llvm/. llvm-svn: 16137
* Give a better assertion if we see a use before a def.Alkis Evlogimenos2004-09-011-0/+2
| | | | llvm-svn: 16135
* Remove dead code.Alkis Evlogimenos2004-08-281-1/+0
| | | | llvm-svn: 16077
* Use newly added API in MRegisterInfo and don't expose the allocatableAlkis Evlogimenos2004-08-261-13/+1
| | | | | | register set anymore. Its users now use the MRegisterInfo API. llvm-svn: 16061
* There is no need to store the MBB along with the MI any more, we can nowChris Lattner2004-07-191-9/+9
| | | | | | ask instructions for their parent. llvm-svn: 14998
* Simplify the interface to LiveVariables::addVirtualRegister(Killed|Dead)Chris Lattner2004-07-191-2/+3
| | | | llvm-svn: 14997
* Remove the DefBlock element of VarInfo. DefBlock is always DefInst->getParent()Chris Lattner2004-07-191-4/+4
| | | | llvm-svn: 14996
* Add checks to ensure that there are no unreachable blocks in the functionChris Lattner2004-07-091-0/+8
| | | | llvm-svn: 14725
* Now that MachineFunction/MachineBasicBlock keep a mapping of blocks to ID #'sChris Lattner2004-07-011-20/+0
| | | | | | use them instead of a local LiveVariables numbering llvm-svn: 14523
* Start using MBB numbers directly instead of going through the live variablesChris Lattner2004-07-011-2/+2
| | | | | | map. llvm-svn: 14518
* Instead of building a private numbering of MBB's use brg's nifty auto-numbering.Chris Lattner2004-07-011-5/+5
| | | | | | Also convert df_iterator -> df_ext_iterator for subsequent stuff I'm doing. llvm-svn: 14517
* Convert tabs to spaces.Misha Brukman2004-06-241-45/+44
| | | | llvm-svn: 14373
* Adjust to new TargetMachine interfaceChris Lattner2004-06-021-1/+1
| | | | llvm-svn: 13956
* Patch to fix PR337. Make sure to mark all aliased physical registers as usedChris Lattner2004-05-101-3/+8
| | | | | | | | | | | | | when we see a read of a register. This is important in cases like: AL = ... AH = ... = AX The read of AX must make both the AL and AH defs live until the use. llvm-svn: 13444
* Stop LiveVariables from using BasicBlocks as part of the mapping, insteadChris Lattner2004-05-011-29/+20
| | | | | | | | use MachineBasicBlocks. To do this, we traverse the Machine CFG instead of the LLVM CFG, which is also *MUCH* more efficient by having fewer levels of indirections and mappings. llvm-svn: 13301
* Correctly update LiveVariables when an instruction changesAlkis Evlogimenos2004-03-301-3/+3
| | | | llvm-svn: 12561
* Add an assertChris Lattner2004-02-291-1/+4
| | | | llvm-svn: 12010
* Uncomment assertions that register# != 0 on calls toAlkis Evlogimenos2004-02-261-3/+3
| | | | | | | MRegisterInfo::is{Physical,Virtual}Register. Apply appropriate fixes to relevant files. llvm-svn: 11882
* Fix an iterator invalidation problem. :(Chris Lattner2004-02-191-2/+11
| | | | llvm-svn: 11627
* Add method to update livevar when an instruction movesChris Lattner2004-02-191-0/+34
| | | | llvm-svn: 11625
* Make dense maps keyed on physical registers smallerusingAlkis Evlogimenos2004-02-151-4/+3
| | | | | | | | | | MRegisterInfo::getNumRegs() instead of MRegisterInfo::FirstVirtualRegister. Also use MRegisterInfo::is{Physical,Virtual}Register where appropriate. llvm-svn: 11477
* Change MachineBasicBlock's vector of MachineInstr pointers into anAlkis Evlogimenos2004-02-121-4/+3
| | | | | | | | | ilist of MachineInstr objects. This allows constant time removal and insertion of MachineInstr instances from anywhere in each MachineBasicBlock. It also allows for constant time splicing of MachineInstrs into or out of MachineBasicBlocks. llvm-svn: 11340
* Add #includeChris Lattner2004-02-101-0/+1
| | | | llvm-svn: 11285
* Do not use MachineOperand::isVirtualRegister either!Chris Lattner2004-02-101-8/+6
| | | | llvm-svn: 11283
* Eliminate users of MachineOperand::isPhysicalRegisterChris Lattner2004-02-101-2/+4
| | | | llvm-svn: 11278
* Ugh, perform an optimization that GCC should be able to do itself. ThisChris Lattner2004-02-091-6/+7
| | | | | | speeds up livevar from .48/.32s -> .45/.31s in LLC on perlbmk llvm-svn: 11217
* Only do stuff for the REAL number of physical registers we have, not 1024.Chris Lattner2004-02-091-10/+8
| | | | | | | This speeds up live variables a lot, from .60/.39s -> .47/.26s in LLC, for the first/second pass respectively. llvm-svn: 11216
* Finegrainify namespacification, use new MRegisterInfo::isVirtualRegisterChris Lattner2004-01-311-1/+1
| | | | | | method llvm-svn: 11037
* Finegrainify namespacificationChris Lattner2004-01-301-4/+17
| | | | | | Implement LiveVariables::getIndexMachineBasicBlock llvm-svn: 11018
* Remove unneeded check (with the recent change in live variables a useAlkis Evlogimenos2004-01-131-4/+2
| | | | | | of a physical register is always dominated by a def). llvm-svn: 10821
* Correctly compute live variable information for physical registersAlkis Evlogimenos2004-01-131-19/+12
| | | | | | | | | | | | | | when an implicitely defined register is later used by an alias. For example: call foo %reg1024 = mov %AL The call implicitely defines EAX but only AL is used. Before this fix no information was available on AL. Now EAX and all its aliases except AL get defined and die at the call instruction whereas AL lives to be killed by the assignment. llvm-svn: 10813
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