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2005-01-07Fix a pointer invalidation problem. This fixes Generic/badarg6.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19361 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07Fold conditional branches on constants away.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19360 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07Fix a thinko in the reassociation code, fixing Generic/badlive.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19359 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07Add support for truncating integer casts from long.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19358 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07Fix a bug in load expansion legalization and ret legalization. This fixesChris Lattner
CodeGen/Generic/select.ll:castconst. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19357 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07Legalize unconditional branches tooChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19356 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07Implement support for long GEP indices on 32-bit archs and support forChris Lattner
int GEP indices on 64-bit archs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19354 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07Simplify: truncate ({zero|sign}_extend (X))Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19353 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07implement legalization of a bunch more operators.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19352 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07Fix another bug legalizing calls!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19350 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07Fix handling of dead PHI nodes.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19349 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07Fix a bug legalizing callsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19348 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07After legalizing a DAG, delete dead nodes to save space.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19346 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07Implement RemoveDeadNodesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19345 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07Teach legalize how to handle condbranchesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19339 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07Initial implementation of the SelectionDAGISel class. This contains mostChris Lattner
of the code for lowering from LLVM code to a SelectionDAG. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19331 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07This file is obsoleteChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19330 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07Initial implementation of the DAG legalization. This still has a long wayChris Lattner
to go, but it does work for some non-trivial cases now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19329 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07Complete rewrite of the SelectionDAG class.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19327 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-07First draft of new Target interfaceChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19324 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-02Make the 2-address instruction lowering pass smarter in two ways:Chris Lattner
1. If we are two-addressing a commutable instruction and the LHS is not the last use of the variable, see if the instruction is the last use of the RHS. If so, commute the instruction, allowing us to avoid a register-register copy in many cases for common instructions like ADD, OR, AND, etc on X86. 2. If #1 doesn't hold, and if this is an instruction that also existing in 3-address form, promote the instruction to a 3-address instruction to avoid the register-register copy. We can do this for several common instructions in X86, including ADDrr, INC, DEC, etc. This patch implements test/Regression/CodeGen/X86/commute-two-addr.ll, overlap-add.ll, and overlap-shift.ll when I check in the X86 support for it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19245 91177308-0d34-0410-b5e6-96231b3b80d8
2004-12-15Move virtual method call out of loopChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18955 91177308-0d34-0410-b5e6-96231b3b80d8
2004-12-07Move virtual function call out of loop to speed up getFreePhysReg by aboutNate Begeman
20%, shaving 0.1s off hbd compile time on my g5. Yay. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18592 91177308-0d34-0410-b5e6-96231b3b80d8
2004-12-07For PR387:\Reid Spencer
Make only one print method to avoid overloaded virtual warnings when \ compiled with -Woverloaded-virtual git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18589 91177308-0d34-0410-b5e6-96231b3b80d8
2004-12-04Prevent accessing past the end of the intervals vector, this fixesChris Lattner
Prolang-C/bison in the JIT git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18477 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-28Fix SingleSource/UnitTests/2004-11-28-GlobalBoolLayout.c, and hopefullyChris Lattner
PR449 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18306 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-22Fix the FIXME, nuke the JIT specific forceCompilationOf method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18131 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-22These methods are obsoleteChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18129 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-20Adjust to changed interfacesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18064 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-20Add getCurrentPCOffset() and addRelocation() methods.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18034 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-19Match change in MachineCodeEmitter prototype.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18009 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-18* There is no reason for SpillWeights to be an instance varChris Lattner
* Do not put fixed registers into the unhandled set. This means they will never find their way into the inactive, active, or handled sets, so we can simplify a bunch of code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17945 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-18There is no need to check to see if j overflowed in this loop as we're onlyChris Lattner
incrementing i. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17944 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-18Moderate head scratching reveals that this conditional is not needed. IfChris Lattner
i->start == j->start, then certainly i->end > j->start. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17943 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-18Fix a couple of bugs where we considered physregs past their range as possiblyChris Lattner
intersecting an interval. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17939 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-18Fix typeoChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17938 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-18Start using the iterators in the fixed_ intervals to avoid having to binaryChris Lattner
search physreg intervals every time we access it. This takes another half second off of linscan. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17937 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-18Take another .7 seconds off of linear scan time.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17936 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-18Add a counter for the number of times linscan has to backtrack. Start usingChris Lattner
the iterator hints we have to speed up overlaps(). This speeds linscan up by about .2s (out of 8.7) on 175.vpr for PPC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17935 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-18Add ability to give hints to the overlaps routines.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17934 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-18* Improve comments/documentation substantiallyChris Lattner
* Eliminate the releaseMemory method, this is not an analysis * Change the fixed, active, and inactive lists of intervals to maintain an iterator for the current position in the interval. This allows us to do constant time increments of the iterator instead of having to do a binary search to find our liverange in our liveinterval all of the time, which substantially speeds up cases where LiveIntervals have many LiveRanges - which is very common for physical registers. On targets with many physregs, this can make a noticable difference. With a release build of LLC for PPC, this halves the time in processInactiveIntervals and processActiveIntervals, from 1.5s to .75s. This also lays the ground for more to come. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17933 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-18Add new advanceTo methodChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17932 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-18Fix a minor bug in expiredAt. endNumber() is the first number that is not ↵Chris Lattner
valid. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17931 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-18Rename some methods, use 'begin' instead of 'start', add new LiveIntervalChris Lattner
iterator/begin/end members. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17930 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-16Give a better message for a common assertion failure.Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17887 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-05Do not make i have bigger scope that we needChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17483 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-27Change Library Names Not To Conflict With Others When InstalledReid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17286 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-26Move method bodies that depend on <algorithm> from MBB.h to MBB.cppChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17253 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-26Clean up the MachineBasicBlock.h file, percolating #includes into this file.Chris Lattner
Patch contributed by Morten Ofstad git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17251 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-26Reduce usage of MRegisterInfo::getRegClassChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17238 91177308-0d34-0410-b5e6-96231b3b80d8
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