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2007-04-19Fix a message, patch by Christopher Lamb.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36264 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-19Fix a bug in getFrameRegister.Lauro Ramos Venancio
Reported by Raul Herbster. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36262 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-19Make use of ConstantInt::isZero instead of ConstantInt::isNullValue.Zhou Sheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36261 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-19Make the operations of APInt variables more efficient.Zhou Sheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36260 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-19Fix some VC++ warnings.Jeff Cohen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36259 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18Revert Owen's last check-in. This is breaking Mac OS X / PPC llvm-gcc bootstrap.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36258 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18Provide link.Jeff Cohen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36257 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18Fix the spelling of the prefetchnta instruction.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36256 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18Revert changes that caused breakage.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36255 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18Switch more uses of DominatorTree over to ETForest.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36254 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18Use ETForest instead of DominatorTree.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36252 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18Add accessor to get the blocks immediately dominated by a given block to ↵Owen Anderson
ETForest. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36251 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18VarInfo::UsedBlocks is no longer used. Remove.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36250 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18Use ETForest instead of DominatorTree.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36249 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18Use new ETForest accessor.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36248 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18Use ETForest instead of DominatorTree.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36247 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18Add an accessor to make ETForest more useful.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36246 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18allow SRL to simplify its operands, as it doesn't demand all bits as input.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36245 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-18When replacing a node in SimplifyDemandedBits, if the old node used anyChris Lattner
single-use nodes, they will be dead soon. Make sure to remove them before processing other nodes. This implements CodeGen/X86/shl_elim.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36244 91177308-0d34-0410-b5e6-96231b3b80d8
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
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