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2010-04-21Run LiveVariables instead of computing liveness locally in -regalloc=fast.Jakob Stoklund Olesen
This actually makes everything slower, but the plan is to have isel add <kill> flags the way it is already adding <dead> flags. Then LiveVariables can be removed again. When ignoring the time spent in LiveVariables, -regalloc=fast is now twice as fast as -regalloc=local. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102034 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Do not try to optimize a copy that has already been marked for deletion.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102027 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Add command line option to disable debug info printing in .s file. This ↵Devang Patel
option does not impact debug info generation and preservation through earlier compile starges. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102012 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Fix a performance problem with the new SSAUpdater. This showed up in theBob Wilson
GCCAS time for MultiSource/Benchmarks/ASCI_Purple/SMG2000. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102009 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Modified some assert() msg strings; no other functionality change.Johnny Chen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102008 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Add fast register allocator, enabled with -regalloc=fast.Jakob Stoklund Olesen
So far this is just a clone of -regalloc=local that has been lobotomized to run 25% faster. It drops the least-recently-used calculations, and is just plain stupid when it runs out of registers. The plan is to make this go even faster for -O0 by taking advantage of the short live intervals in unoptimized code. It should not be necessary to calculate liveness when most virtual registers are killed 2-3 instructions after they are born. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102006 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Identify when a lexical scope is split in to multiple instruction ranges. ↵Devang Patel
Emit such ranges using DW_AT_ranges. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102004 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Make ScalarEvolution::getConstant support pointer types, for consistencyDan Gohman
with ScalarEvolution's overall approach to pointer types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102003 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Dragonegg will be released along side llvm-2.7.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102001 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21final hacking for tonight, still more to go.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101995 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21continue the process of detangling this.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101992 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21rough pass moving stuff into relevant sections, still muchChris Lattner
editing to do. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101987 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21remove ldc, rubinious, macruby, icedtea, llvm-lua, whichChris Lattner
don't have updates for 2.7. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101985 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Implement -disable-non-leaf-fp-elim which disable frame pointer eliminationEvan Cheng
optimization for non-leaf functions. This will be hooked up to gcc's -momit-leaf-frame-pointer option. rdar://7886181 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101984 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21isel (i32 anyext i16) as insert_subreg when 16-bit ops are being promoted.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101979 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Trim include.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101978 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Add more const qualifiers on TargetMachine and friends.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101977 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Update CMakeLists.txt.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101976 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Move several SelectionDAG-independent utility functions out of theDan Gohman
SelectionDAG directory and into a new Analysis.cpp file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101975 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Thumb instructions which have reglist operands at the end and predicate operandsJohnny Chen
before reglist were not properly handled with respect to IT Block. Fix that by creating a new method ARMBasicMCBuilder::DoPredicateOperands() used by those instructions for disassembly. Add a test case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101974 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Implement (but don't enable) PR6724 and rdar://6295824. In short,Chris Lattner
we have RefreshCallGraph detect when a function pass devirtualizes a call, and have CGSCCPassMgr iterate (up to a count) when this happens. This allows (in the example) GVN to devirtualize the call in foo, then the inliner to inline it away. This is not currently enabled because I haven't done any analysis on the (potentially substantial) code size or performance impact of doing this, and guess what, it exposes callgraph updating bugs in various passes. This is progress though, and you can play with it by passing -max-cg-scc-iterations=5 to opt. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101973 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21- Clean up some crappy code which deals with coalescing of copies which look atEvan Cheng
extract_subreg / insert_subreg, etc. - Add support for more aggressive insert_subreg coalescing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101971 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Revert r101471. For tight recursive functions which have multipleDan Gohman
recursive callsites, inlining can reduce the number of calls by exponential factors, as it does in MultiSource/Benchmarks/Olden/treeadd. More involved heuristics will be needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101969 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Handle a displacement location in 64-bit as an RIP-relative displacement. ItBill Wendling
fixes a bug (<rdar://problem/7880900>) in the JIT. This code wouldn't work: target triple = "x86_64-apple-darwin" define double @func(double %a) { %tmp1 = fmul double %a, 5.000000e-01 ; <double> [#uses=1] ret double %tmp1 } define i32 @main() nounwind { %1 = call double @func(double 4.770000e-04) ; <i64> [#uses=0] ret i32 0 } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101965 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Rewrite machine cse to avoid recursion.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101964 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Add another variant of this test which found a place whereDan Gohman
CodeGen's ComputeMaskedBits was being over-conservative when computing bits for an ADD. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101963 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20teach the x86 address matching stuff to handleChris Lattner
(shl (or x,c), 3) the same as (shl (add x, c), 3) when x doesn't have any bits from c set. This finishes off PR1135. Before we compiled the block to: to: LBB0_3: ## %bb cmpb $4, %dl sete %dl addb %dl, %cl movb %cl, %dl shlb $2, %dl addb %r8b, %dl shlb $2, %dl movzbl %dl, %edx movl %esi, (%rdi,%rdx,4) leaq 2(%rdx), %r9 movl %esi, (%rdi,%r9,4) leaq 1(%rdx), %r9 movl %esi, (%rdi,%r9,4) addq $3, %rdx movl %esi, (%rdi,%rdx,4) incb %r8b decb %al movb %r8b, %dl jne LBB0_1 Now we produce: LBB0_3: ## %bb cmpb $4, %dl sete %dl addb %dl, %cl movb %cl, %dl shlb $2, %dl addb %r8b, %dl shlb $2, %dl movzbl %dl, %edx movl %esi, (%rdi,%rdx,4) movl %esi, 8(%rdi,%rdx,4) movl %esi, 4(%rdi,%rdx,4) movl %esi, 12(%rdi,%rdx,4) incb %r8b decb %al movb %r8b, %dl jne LBB0_1 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101958 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Because of the EMMS problem, right now we have to supportDale Johannesen
user-defined operations that use MMX register types, but the compiler shouldn't generate them on its own. This adds a Synthesizable abstraction to represent this, and changes the vector widening computation so it won't produce MMX types. (The motivation is to remove noise from the ABI compatibility part of the gcc test suite, which has some breakage right now.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101951 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Rename ValueMapTy as ValueToValueMapTy to clearly indicate that this has no ↵Devang Patel
replationship with ADT/ValueMap. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101950 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20There is no need to install ValueMapper.h header. Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101949 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Better error-handling of getBitFieldInvMask() where msb < lsb (encoding error),Johnny Chen
instead of just asserting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101942 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20I plan to release a version of dragonegg based on llvm-2.7 shortlyDuncan Sands
after the llvm-2.7 release. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101934 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20When MachineLICM is hoisting a physical register after regalloc, make sure theJakob Stoklund Olesen
register is not killed in the loop. This fixes 188.ammp on ARM where the post-ra scheduler would grab a register that looked available but wasn't. A testcase would be huge and fragile, sorry. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101930 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20When doing Thumb disassembly, there's no need to consider ↵Johnny Chen
t2ADDrSPi12/t2SUBrSPi12, as their generic counterparts t2ADDri12/t2SUBri12 should suffice. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101929 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Move CodeGen/X86/2010-04-19-DAGCombineCrash.ll into CodeGen/X86/crash.ll. AlsoBill Wendling
reduce. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101925 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20For t2LDRT, t2LDRBT, t2LDRHT, t2LDRSBT, and t2LDRSHT, if ↵Johnny Chen
Rn(Inst{19-16})=='1111', transform the Opcode to the corresponding t2LDR*pci counterpart. Ref: A8.6.86 LDRT, A8.6.65 LDRBT, A8.6.77 LDRHT, A8.6.81 LDRSBT, A8.6.85 LDRSHT git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101915 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Typo.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101914 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Add RUN:Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101913 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Sink the CopyToExportRegsIfNeeded calls out of SelectionDAGISelDan Gohman
into SelectionDAGBuilder. This avoids a separate pass over the instructions, and has the side effect of providing debug location information to the copy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101906 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Don't send PHI nodes down to SelectionDAGBuilder of FastISel, sinceDan Gohman
they end up doing nothing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101904 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Document that TargetRegisterInfo::contains does not cover virtual registers.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101903 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Sink this use_empty() check into isUsedOutsideOfDefiningBlock.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101902 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20If a PHI node somehow has debug info, propogate it to the MachineInstr PHI.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101901 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Don't iterate through the whole block just to find the PHI nodes.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101900 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20use abstract accessors to CallInstGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101899 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20PR6880: Don't dereference CallsExternalNode if it's NULL.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101897 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Fix -Wcast-qual warning.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101894 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20stop computing InstImpInputs, it is deadChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101881 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20DAGInstruction::ImpOperands is dead after my recent tblgen work, zap it.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101880 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Bill's change in r95336 broke empty aggregates embeddedChris Lattner
in other types. fix this by only bumping zero-byte globals up to a single byte if the *entire global* is zero size, fixing PR6340. This also fixes empty arrays etc to be handled correctly, and only does this on subsection-via-symbols targets (aka darwin) which is the only place where this matters. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101879 91177308-0d34-0410-b5e6-96231b3b80d8
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