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2007-04-18new testcaseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36243 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18fix a pastoChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36242 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18New crasher test case.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36241 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18Don't populate TryAgainList when coalescing only physical registers with ↵Evan Cheng
virtual registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36240 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18Cache DT[*SI] lookup.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36239 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18don't access argument list of prototypesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36238 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18FixDevang Patel
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070416/047971.html git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36236 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18New test.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36235 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18what's an & between friends?Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36234 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18Increment use count of new virtuals created during PHI elimination.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36233 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17Be more careful when inserting reused instructions. This fixes ↵Chris Lattner
CodeGen/Generic/2007-04-17-lsr-crash.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36231 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17new testcaseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36230 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17Oops. Didn't mean to check in a quick hack.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36227 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17Fix a bug in my previous patch, grabbing the shift amount width from theChris Lattner
wrong operand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36223 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17dag combiner just got better at pruning bits. This fixes CodeGen/ARM/rev.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36222 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17Fold (x << c1)>> c2 into a single shift if the bits shifted out aren't used.Chris Lattner
This compiles: int baz(long long a) { return (short)(((int)(a >>24)) >> 9); } into: _baz: srwi r2, r3, 1 extsh r3, r2 blr on PPC, instead of: _baz: slwi r2, r3, 8 srwi r2, r2, 9 extsh r3, r2 blr GCC produces: _baz: srwi r10,r4,24 insrwi r10,r3,24,0 srawi r9,r3,24 srawi r3,r10,9 extsh r3,r3 blr This implements CodeGen/PowerPC/shl_elim.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36221 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17new testcaseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36220 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17Use // not ; since this is C.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36219 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17Copy coalescing change to prevent a physical register from being pin to aEvan Cheng
long live interval that has low usage density. 1. Change order of coalescing to join physical registers with virtual registers first before virtual register intervals become too long. 2. Check size and usage density to determine if it's worthwhile to join. 3. If joining is aborted, assign virtual register live interval allocation preference field to the physical register. 4. Register allocator should try to allocate to the preferred register first (if available) to create identify moves that can be eliminated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36218 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17New test case.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36217 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17Add a register allocation preference field; add a method to compute size of ↵Evan Cheng
a live interval. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36216 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17Change getAllocatableSet() so it returns allocatable registers for a ↵Evan Cheng
specific register class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36215 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17Keep track of number of uses within the function per virtual register.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36214 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17Add commentAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36213 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17SIGN_EXTEND_INREG does not demand its top bits. Give SimplifyDemandedBitsChris Lattner
a chance to hack on it. This compiles: int baz(long long a) { return (short)(((int)(a >>24)) >> 9); } into: _baz: slwi r2, r3, 8 srwi r2, r2, 9 extsh r3, r2 blr instead of: _baz: srwi r2, r4, 24 rlwimi r2, r3, 8, 0, 23 srwi r2, r2, 9 extsh r3, r2 blr This implements CodeGen/PowerPC/sign_ext_inreg1.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36212 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17new testcaseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36211 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17Commit an patch from Gabor Greif in Mar 2005. This eliminates the tailChris Lattner
pointer from ilist, storing it in the prev pointer of the first node in the list instead. This shrinks ilist from 8 to 4 bytes, BasicBlock from 40->36 bytes, Function from 76->68 bytes, Module from 52->44 bytes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36210 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17make getnext/getprev accessors private.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36209 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17Spell doFinalization right, so that it is a proper virtual override andDan Gohman
gets called. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36208 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17make next/prev accessors privateChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36207 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17bool on darwin/ppc is 4 bytes.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36206 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17remove use of BasicBlock::getNextChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36205 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17Instruction:: Next/Prev accessors are now privateChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36204 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17add a noteChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36203 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17remove use of BasicBlock::getNextChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36202 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17Remove use of Instruction::getNextChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36201 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17eliminate use of Instruction::getNext()Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36200 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17remove use of Instruction::getNextChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36199 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17eliminate use of Instruction::getPrev(). Patch by Gabor Greif in 2005.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36198 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17eliminate a use of Instruction::getPrev(), patch by Gabor Greif in 2005.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36197 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17rename X86FunctionInfo to X86MachineFunctionInfo to match the header fileChris Lattner
it is defined in. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36196 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17Implemented correct stack probing on mingw/cygwin for dynamic alloca's.Anton Korobeynikov
Also, fixed static case in presence of eax livin. This fixes PR331 PS: Why don't we still have push/pop instructions? :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36195 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17Make it work on 64-bit systems.Jeff Cohen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36194 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17Fix build breakage on 64-bit systems.Jeff Cohen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36193 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17merge several fields in GlobalValue to use the same word, move CallingConvChris Lattner
field into SubclassData in Value. This shrinks GlobalVAlue from 48->40 bytes, Function from 88->76, and GlobalVariable from 76->68. This trims 4640 bytes off my testcase, reading a bc file without materializing any functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36192 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17Use this nifty Constraints thing and fix the inverted conditional movesAndrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36191 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17this is fixedAndrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36190 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17The (negative) offset from a SymbolTableListTraits-using ilist to its containerChris Lattner
object is always constant. As such, evaluate it at compile time instead of storing it as an ivar in SymbolTableListTraits. This shrinks every SymbolTableListTraits ilist by a word, shrinking BasicBlock from 44->40 bytes, Function from 96->88 bytes, and Module from 60->52 bytes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36189 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17Refactor SymbolTableListTraits to only have a single pointer in it, insteadChris Lattner
of two. This shrinkifies Function by 8 bytes (104->96) and Module by 8 bytes (68->60). On a testcase of mine, this reduces the memory used to read a module header from 565680b to 561024, a little over 4K. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36188 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17urr, yeah.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36187 91177308-0d34-0410-b5e6-96231b3b80d8
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