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2009-07-23Added PHI Def & Kill tracking to PHIElimination pass.Lang Hames
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76849 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22Reorder if-else branches as suggested by Bill.David Greene
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76808 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22Constify the key in Mi2IndexMap.David Greene
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76801 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22Ignore undef uses.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76799 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22Switch some clients to Value::getName(), and other getName() userDaniel Dunbar
simplification. - NFC git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76789 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22Put comment printing under asm-verbose.David Greene
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76780 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22Make some changes suggested by Bill and Evan.David Greene
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76775 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22remove the SelectSectionForMachineConst hook, replacing it withChris Lattner
a new getSectionForMergableConstant hook. This removes one dependence of TAI on Type, and provides the hook with enough info to make the right decision based on whether the global has relocations etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76705 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22Let each target determines whether a machine instruction is dead. If true, ↵Evan Cheng
that allows late codeine passes to delete it. This is considered a workaround. The problem is some targets are not modeling side effects correctly. PPC is apparently one of those. This patch allows ppc llvm-gcc to bootstrap on Darwin. Once we find out which instruction definitions are wrong, we can remove the PPCInstrInfo workaround. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76703 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22Get rid of the Pass+Context magic.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76702 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22reimplement Constant::ContainsRelocations as Chris Lattner
Constant::getRelocationInfo(), which has a much simpler to use API. It still should not be part of libvmcore, but is better than it was. Also teach it to be smart about hidden visibility. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76700 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Exposed PHIElimination pass within CodeGen.Lang Hames
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76688 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Add some support for iterative coalescers to calculate a joined liveDavid Greene
range's weight properly. This is turned off right now in the sense that you'll get an assert if you get into a situation that can only be caused by an iterative coalescer. All other code paths operate exactly as before so there is no functional change with this patch. The asserts should be disabled if/when an iterative coalescer gets added to trunk. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76680 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21no really, I can spell!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76679 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21add an API so target-independent codegen can determine if a constantChris Lattner
pool entry will require relocations against it. I implemented this conservatively for ARM, someone who is knowledgable about it should see if this can be improved. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76678 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Change ELFCodeEmitter logic to emit the constant pool and jump tables toBruno Cardoso Lopes
their appropriate sections before the code itself. They need to be emitted before the function because on some targets (x86 but not x86_64) the later may reference a JT or CP entry address git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76672 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21revert r76602, 76603, and r76615, pending design discussions.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76646 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Remove shift amount flavor. It isn't actually complete enough to Eli Friedman
be useful, and it's currently unused. (Some issues: it isn't actually rich enough to capture the semantics on many architectures, and semantics can vary depending on the type being shifted.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76633 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Prefix IR dumps with LiveInterval indices when possible. This turnsDavid Greene
this: %ESI<def> = MOV32rr %EDI<kill> ADJCALLSTACKDOWN64 0, %RSP<imp-def>, %EFLAGS<imp-def,dead>, %RSP<imp-use> %reg1027<def> = MOVZX64rr32 %ESI %reg1027<def> = ADD64ri8 %reg1027, 15, %EFLAGS<imp-def,dead> %reg1027<def> = AND64ri8 %reg1027, -16, %EFLAGS<imp-def,dead> %RDI<def> = MOV64rr %RSP %RDI<def> = SUB64rr %RDI, %reg1027<kill>, %EFLAGS<imp-def,dead> %RSP<def> = MOV64rr %RDI into this: 4 %reg1024<def> = MOV32rr %EDI<kill> 12 ADJCALLSTACKDOWN64 0, %RSP<imp-def>, %EFLAGS<imp-def,dead>, %RSP<imp-use> 20 %reg1025<def> = MOVZX64rr32 %reg1024 28 %reg1026<def> = MOV64rr %reg1025<kill> 36 %reg1026<def> = ADD64ri8 %reg1026, 15, %EFLAGS<imp-def,dead> 44 %reg1027<def> = MOV64rr %reg1026<kill> 52 %reg1027<def> = AND64ri8 %reg1027, -16, %EFLAGS<imp-def,dead> 60 %reg1028<def> = MOV64rr %RSP 68 %reg1029<def> = MOV64rr %reg1028<kill> 76 %reg1029<def> = SUB64rr %reg1029, %reg1027<kill>, %EFLAGS<imp-def,dead> 84 %RSP<def> = MOV64rr %reg1029 This helps greatly when debugging register allocation and coalescing problems. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76615 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21make AsmPrinter::doFinalization iterate over the global variablesChris Lattner
and call PrintGlobalVariable, allowing elimination and simplification of various targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76604 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Add PrefixPrinter arguments to the dump routines for MachineFunction andDavid Greene
MachineBasicBlock. We'll use these shortly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76603 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Rename getConstantInt{True|False} to get{True|False} at Chris' behest.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76598 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Rename LessPrivateGlobalPrefix -> LinkerPrivateGlobalPrefix to match theChris Lattner
LLVM IR concept. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76590 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Another rewriter bug exposed by recent coalescer changes. ↵Evan Cheng
ReuseInfo::GetRegForReload() should make sure the "switched" register is in the desired register class. I'm surprised this hasn't caused more failures in the past. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76558 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Simplify / normalize some uses of Value::getName.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76553 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Support adding relocations for data sections, handling the cases whereBruno Cardoso Lopes
global declared symbols are initialized with references from other global symbols. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76540 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Fix a dagga combiner bug: avoid creating illegal constant.Evan Cheng
Is this really a winning transformation? fold (shl (srl x, c1), c2) -> (shl (and x, (shl -1, c1)), (sub c2, c1)) or (srl (and x, (shl -1, c1)), (sub c1, c2)) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76535 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Move a bit more state over to the LLVMContext.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76533 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Cross RC coalescing is now on by default.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76519 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-20Move stripping of bitcasts in inline asm argumentsDale Johannesen
to a place where it affects everything. Occurs only on calls AFAIK. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76502 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-20Simplify the code in DarwinTargetAsmInfo::emitUsedDirectiveFor so that ↵Bill Wendling
humans can understand it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76480 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-20Pass in the unfortunately named "LessPrivatePrefix" for theBill Wendling
"LinkerPrivatePrefix". It seems to have been used in only one place before I started this "linker_private" business. I'm thinking that a rename is in order... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76479 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-20Use TII->findCommutedOpIndices to find the commute operands (rather than ↵Evan Cheng
guessing). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76472 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-20Fix some sub-reg coalescing bugs where the coalescer wasn't updating the ↵Evan Cheng
resulting interval's register class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76458 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-20For PC relative relocations where symbols are defined in the same section theyBruno Cardoso Lopes
are referenced, ignore the relocation entry and patch the relocatable field with the computed symbol offset directly git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76414 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-20implement a new magic global "llvm.compiler.used" which is like llvm.used, butChris Lattner
doesn't cause ".no_dead_strip" to be emitted on darwin. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76399 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-20use stripPointerCasts to simplify some code.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76397 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-20Add plumbing for the `linker_private' linkage type. This type is meant forBill Wendling
"private" symbols which the assember shouldn't strip, but which the linker may remove after evaluation. This is mostly useful for Objective-C metadata. This is plumbing, so we don't have a use of it yet. More to come, etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76385 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-19Fix http://llvm.org/bugs/show_bug.cgi?id=4583Jakob Stoklund Olesen
Inline asm instructions may have additional <imp-def,kill> register operands. These operands are not marked with a flag like the normal asm operands, so we must not assert that there is a flag. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76373 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-19Fix some minor MSVC compiler warnings.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76356 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-18Use R_X86_64_32S to handle Jump Table Index relocation entries. Hide TAI ↵Bruno Cardoso Lopes
usage inside getSection* functions git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76347 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-18Use a better name for the label relocations while emitting them for Jump TablesBruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76334 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-18Add support to properly reference private symbols on relocation entries.Bruno Cardoso Lopes
Use proper relocation type to build relocations for JumpTables (rodata sections). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76326 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-18Catch more coalescing opportunities.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76282 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-18Enable cross register class coalescing.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76281 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-17Fix pr4552. Stack slot coloring with register must take care not to generate ↵Evan Cheng
illegal ams. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76258 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-17remove AsmPrinter::findGlobalValue, just use Value::stripPointerCasts instead.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76246 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-17Simplify some more.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76239 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-17Use more terse and precise linkage checks.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76237 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-17Eliminate yet another copy of getOpcode.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76236 91177308-0d34-0410-b5e6-96231b3b80d8
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