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2011-06-27During bottom up fast-isel, instructions emitted to materalize registers are ↵Devang Patel
at top of basic block and do not have debug location. This may misguide debugger while entering the basic block and sometimes debugger provides semi useful view of current location to developer by picking up previous known location as current location. Assign a sensible location to the first instruction in a basic block, if it does not have one location derived from source file, so that debugger can provide meaningful user experience to developers in edge cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133953 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-26There is only one register coalescer. Merge it into the base class andRafael Espindola
remove the analysis group. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133899 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-26Move RegisterCoalescer.h to lib/CodeGen.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133895 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-24Handle debug info for i128 constants.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133821 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-19Fix a FIXME by making GlobalVariable::getInitializer() return aJay Foad
const Constant *. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133400 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-18Don't allocate empty read-only SmallVectors during SelectionDAG deallocation.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133348 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17Lower multiply with overflow checking to __mulo<mode>Eric Christopher
calls if we haven't been able to lower them any other way. Fixes rdar://9090077 and rdar://9210061 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133288 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17Add a hook for PBQP clients to run a custom pre-alloc pass to run prior to ↵Lang Hames
PBQP allocation. Patch by Arnaud Allard de Grandmaison. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133249 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-16Introduce MachineBranchProbabilityInfo class, which has similar API toJakub Staszak
BranchProbabilityInfo (expect setEdgeWeight which is not available here). Branch Weights are kept in MachineBasicBlocks. To turn off this analysis set -use-mbpi=false. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133184 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-16Fix formatting.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133164 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15Add a new MVT::untyped. This will be used in future work for modelling ISA ↵Owen Anderson
features like register pairs and lists with "interesting" constraints (such as ARM NEON contiguous register lists or even-odd paired registers). We need to be able to generate these instructions (often from intrinsics), but don't want to have to assign a legal type to them. Instead, we'll use an "untyped" edge to bypass the type-checking and simply ensure that the register classes match. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133106 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15Added -stress-sched flag in the Asserts build.Andrew Trick
Added a test case for handling physreg aliases during pre-RA-sched. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133063 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-14Add one more argument to the prefetch intrinsic to indicate whether it's a dataBruno Cardoso Lopes
or instruction cache access. Update the targets to match it and also teach autoupgrade. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132976 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-11Reformatting. Moving class definitions to more natural places. No ↵Bill Wendling
functionalogical changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132876 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10Provide an ARMCCState subclass of CCState so that ARM clients will always setCameron Zwarich
CallOrPrologue correctly and eliminate the existing setter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132856 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10Rename the ParmContext enum values to make a bit more sense and add a smallCameron Zwarich
comment on their meaning. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132854 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10Remove tabs.Cameron Zwarich
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132853 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-08Add a parameter to CCState so that it can access the MachineFunction.Eric Christopher
No functional change. Part of PR6965 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132763 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-07Switched to DenseMap for allowed sets in PBQP. Reduces total LLC time by 15% ↵Lang Hames
on CINT2006 for x86-32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132707 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-02Remove dead code.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132488 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-01Typos.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132437 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-28When generating code for Win64 EH, emit StartProc and EndProc directives.Charles Davis
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132250 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27Make size computation less brittle.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132222 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27Add the suffix to the Win64 EH data sections' names if given. Add a test forCharles Davis
this. XFAIL'd, because the COFF AsmParser can't handle .section yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132220 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27Add a parameter to the Win64 EH section getters to get a section with aCharles Davis
suffix (e.g. .xdata$myfunc). The suffix part isn't implemented yet, but I'll get to it in the next patch. Fix up all callers of the affected functions. Make them pass said suffix to the function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132205 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-26Comment cleanup.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132162 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-24Remove dead code.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131974 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-20Add .pdata and .xdata sections to the COFF TLOF implementation.Charles Davis
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131763 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17Frame indices are signed. Update MachineOperand methods accordingly.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131475 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16Teach LiveInterval::isZeroLength about null SlotIndexes.Jakob Stoklund Olesen
When instructions are deleted, they leave tombstone SlotIndex entries. The isZeroLength method should ignore these null indexes. This causes RABasic to sometimes spill a callee-saved register in the abi-isel.ll test, so don't run that test with -regalloc=basic. Prioritizing register allocation according to spill weight can cause more registers to be used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131436 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16Delete unused variables.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131430 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16Make fast-isel work correctly s/uadd.with.overflow intrinsics.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131420 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16Basic fast-isel of extractvalue. Not too helpful on its own, given the IR ↵Eli Friedman
clang generates for cases like this, but it should become more useful soon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131417 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12Re-commit 131172 with fix. MachineInstr identity checks should check deadEvan Cheng
markers. In some cases a register def is dead on one path, but not on another. This is passing Clang self-hosting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131214 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-11Fix comment.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131173 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-10Use .cfi_sections to put the unwind info in .debug_frame when possible. WithRafael Espindola
this clang will use .debug_frame in, for example, clang -g -c -m32 test.c This matches gcc's behaviour. It looks like .debug_frame is a bit bigger than .eh_frame, but has the big advantage of not being allocated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131140 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-06Yet more dead code.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130988 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-06Update comments.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130987 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-06More dead code elimination.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130985 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05Allow FastISel of three-register-operand instructions.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130934 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-02Remove an unused variable in NDEBUG (found with -Wunused-variable).Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130688 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-02Add a SlotIndexes::insertMachineInstrInMaps to insert the instruction after ↵Jakob Stoklund Olesen
any null indexes. This makes a difference if a live interval is referring to a deleted instruction. It can be important to insert an instruction before or after a deleted instruction to avoid interference. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130686 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-01GCC uses a different encoding of pointers in the FDE when usingRafael Espindola
-fno-dwarf2-cfi-asm. Implement the same behavior. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130637 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-30Avoid using stale entries form the sibling value map.Jakob Stoklund Olesen
This could happen when trying to use a value that had been eliminated after dead code elimination and folding loads. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130597 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-29Factor some code to needsCFIMoves. Avoid printing moves when we don't have to.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130501 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-29add a missing operator that caused us to have to use (*MIB).foo everywhere.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130473 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-28Teach dwarf writer to handle complex address expression for .debug_loc entries.Devang Patel
This fixes clang generated blocks' variables' debug info. Radar 9279956. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130373 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-27Remove unnecessary argument.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130343 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-27Rename getPersonalityPICSymbol to getCFIPersonalitySymbol, document it, andRafael Espindola
give it a bit more responsibility. Also implement it for MachO. If hacked to use cfi, 32 bit MachO will produce .cfi_personality 155, L___gxx_personality_v0$non_lazy_ptr and 64 bit will produce .cfi_presonality ___gxx_personality_v0 The general idea is that .cfi_personality gets passed the final symbol. It is up to codegen to produce it if using indirect representation (like 32 bit MachO), but it is up to MC to decide which relocations to create. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130341 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-27Make the fast-isel code for literal 0.0 a bit shorter/faster, since 0.0 is ↵Eli Friedman
common. rdar://problem/9303592 . git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130338 91177308-0d34-0410-b5e6-96231b3b80d8