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2006-09-05Completely eliminate def&use operands. Now a register operand is EITHER aChris Lattner
def operand or a use operand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30109 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-05Fix a long-standing wart in the code generator: two-address instruction loweringChris Lattner
actually *removes* one of the operands, instead of just assigning both operands the same register. This make reasoning about instructions unnecessarily complex, because you need to know if you are before or after register allocation to match up operand #'s with the target description file. Changing this also gets rid of a bunch of hacky code in various places. This patch also includes changes to fold loads into cmp/test instructions in the X86 backend, along with a significant simplification to the X86 spill folding code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30108 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-05jmp_bufs are this big on alpha.Andrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30107 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-04add support for returning 64bit valuesRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30103 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-04Fix some X86 JIT failures. This should really come from TargetJITInfo.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30102 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-04Correct fix for a crasher on functions with live in valuesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30099 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-04Hack around a regression I introduced yesterdayChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30098 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-04forgot thisDuraid Madina
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30097 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-04add setJumpBufSize() and setJumpBufAlignment() to target-lowering.Duraid Madina
Call these from your backend to enjoy setjmp/longjmp goodness, see lib/Target/IA64/IA64ISelLowering.cpp for an example git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30095 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-04new fileChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30082 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-04Completely rearchitect the interface between targets and the pass manager.Chris Lattner
This pass: 1. Splits TargetMachine into TargetMachine (generic targets, can be implemented any way, like the CBE) and LLVMTargetMachine (subclass of TM that is used by things using libcodegen and other support). 2. Instead of having each target fully populate the passmgr for file or JIT output, move all this to common code, and give targets hooks they can implement. 3. Commonalize the target population stuff between file emission and JIT emission. 4. All (native code) codegen stuff now happens in a FunctionPassManager, which paves the way for "fast -O0" stuff in the CFE later, and now LLC could lazily stream .bc files from disk to use less memory. 5. There are now many fewer #includes and the targets don't depend on the scalar xforms or libanalysis anymore (but codegen does). 6. Changing common code generator pass ordering stuff no longer requires touching all targets. 7. The JIT now has the option of "-fast" codegen or normal optimized codegen, which is now orthogonal to the fact that JIT'ing is being done. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30081 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-04Add accessorChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30080 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-04Add explicit doInitialization/doFinalization methods instead of makingChris Lattner
the FunctionPassManager redo this for each function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30079 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-04remove #includeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30078 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-03Simplify target construction.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30070 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-03eliminate use of TM.getName()Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30068 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-03add the SETULT condition codeRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30067 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-03Avoid beating on the mi2i map when we know the answer already.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30066 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-03minor speedupChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30065 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-03Fix Regression/CodeGen/Generic/2006-09-02-LocalAllocCrash.ll on X86.Chris Lattner
Just because an alias of a register is available, it doesn't mean that we can arbitrarily evict the register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30064 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-03When deleting a machine instruction, make sure to remove it from theChris Lattner
livevariables information. This fixes several regalloc=local failures on x86 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30062 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-03Move two methods out of line, make them work when the record for a machineChris Lattner
instruction includes physregs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30061 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-02Count the time for a pass to ReleaseMemory against that pass. Not doing thisChris Lattner
was under accounting for the time that livevariables cost git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30060 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-02Make ArgumentPromotion handle recursive functions that pass pointers in ↵Owen Anderson
their recursive calls. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30057 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-02add more condition codesRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30056 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-02Improve handling of SelectInst.Nick Lewycky
Reorder operations to remove duplicated work. Fix to leave floating-point types out of the optimization. Add tests to predsimplify.ll for SwitchInst and SelectInst handling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30055 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-02improve compat with certain versions of GCC (on cygwin?)Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30054 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-02Iteration is required for some cases, even if they don't occur in crafty.Chris Lattner
Restore it, which re-fixes X86/2006-08-21-ExtraMovInst.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30050 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-02When joining two intervals where the RHS is really simple, use a light-weightChris Lattner
method for joining the live ranges instead of the fully-general one. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30049 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-01Oops. Bad typo. Without the check of N1.hasOneUse() bad things can happen.Evan Cheng
Suppose the TokenFactor can reach the Op: [Load chain] ^ | [Load] ^ ^ | | / \- / | / [Op] / ^ ^ | .. | | / | [TokenFactor] | ^ | | | \ / \ / [Store] If we move the Load below the TokenFactor, we would have created a cycle in the DAG. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30040 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-01Use a couple of multiclass patterns to factor some integer ops.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30039 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-01remove a bunch of commentsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30038 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-01- Fixed broken Win32 buildAnton Korobeynikov
- Removed warning about clobbered parameter in Bytecode/Reader git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30026 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-01Remove extra spaces.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30025 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-01Last check-in was a mistake...Evan Cheng
I've been told apple gcc version number is not guaranteed to increase monotonically. Change the preprocess condition to make it less risky. The configuration change is done during the middle 10.4 life cycle so we have to check __APPLE_CC. For future OS X release, we should be able to assume -fenable-cxa-atexit is the default. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30024 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-01*** empty log message ***Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30023 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-01Allow legalizer to expand ISD::MUL using only MULHS in the rare case that isEvan Cheng
possible and the target only supports MULHS. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30022 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-01Corrections.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30021 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-01Better comments.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30017 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-01Yikes. This requires checking apple gcc version.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30016 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-01Pull some code out of a hot recursive function because the common case doesn'tChris Lattner
need recursion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30015 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-01Reserve space in the ValueNumberInfo vector. This speeds up live intervalChris Lattner
analysis 16% on crafty. Wrap long lines. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30012 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-01Iterative coallescing doesn't buy us anything (we get identical results onChris Lattner
crafty with and without it). Removing it speeds up live intervals 6%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30010 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-01Don't confuse canonicalize and lookup. Fixes predsimplify.reg4.ll. AlsoNick Lewycky
corrects missing optimization opportunity removing cases from a switch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30009 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-31DAG combiner fix for rotates. Previously the outer-most condition checksEvan Cheng
for ROTL availability. This prevents it from forming ROTR for targets that has ROTR only. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29997 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-31Add a special case that speeds up coallescing a bit, but not enough.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29996 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-31Delete copies as they are coallesced instead of waiting until the end.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29995 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-31avoid calling the virtual isMoveInstr method endlessly by caching its results.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29994 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-31Properties where both Values weren't in the union (as being equal toNick Lewycky
another Value) weren't being found by findProperties. This fixes predsimplify.ll test6, a missed optimization opportunity. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29991 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-30Fix a compiler crash bootstrapping llvm-gcc.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29989 91177308-0d34-0410-b5e6-96231b3b80d8