Factor local liveness computation out into its own function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53352 91177308-0d34-0410-b5e6-96231b3b80d8

Reuse the MO variable instead of recomputing it in RegAllocLocal.
Keep RegAllocSimple in sync.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53351 91177308-0d34-0410-b5e6-96231b3b80d8

Distinguish .const and .const_data on Darwin, when needed. This is somehow crazy :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53350 91177308-0d34-0410-b5e6-96231b3b80d8

Give RegAllocSimple a TargetInstrInfo member to keep it consistent
with RegAllocLocal.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53347 91177308-0d34-0410-b5e6-96231b3b80d8

RegAllocLocal has a TargetInstrInfo data member. Use it instead
of having local variables duplicate it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53346 91177308-0d34-0410-b5e6-96231b3b80d8

Use find with std::map, when that's what's needed, instead of lower_bound
with extra checks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53344 91177308-0d34-0410-b5e6-96231b3b80d8

Weak stuff always goes to coalesced sections on Darwin

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53340 91177308-0d34-0410-b5e6-96231b3b80d8

Remove #include <iostream>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53333 91177308-0d34-0410-b5e6-96231b3b80d8

Testcase for PR2024

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53327 91177308-0d34-0410-b5e6-96231b3b80d8

Silence a warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53326 91177308-0d34-0410-b5e6-96231b3b80d8

Drop enum and use constants for SectionFlags

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53325 91177308-0d34-0410-b5e6-96231b3b80d8

Add FIXME needed to be resolved later

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53324 91177308-0d34-0410-b5e6-96231b3b80d8

Use only 'subset' of flags

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53323 91177308-0d34-0410-b5e6-96231b3b80d8

Typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53322 91177308-0d34-0410-b5e6-96231b3b80d8

Revert accidentially added stuff

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53321 91177308-0d34-0410-b5e6-96231b3b80d8

First sketch of special section objects

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53320 91177308-0d34-0410-b5e6-96231b3b80d8

Honour text sections

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53319 91177308-0d34-0410-b5e6-96231b3b80d8

Use isWeakForLinker() hook

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53318 91177308-0d34-0410-b5e6-96231b3b80d8

Unbreak

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53317 91177308-0d34-0410-b5e6-96231b3b80d8

Switch to new section name handling facility

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53316 91177308-0d34-0410-b5e6-96231b3b80d8

Another bunch of hacks for named sections support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53315 91177308-0d34-0410-b5e6-96231b3b80d8

Typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53314 91177308-0d34-0410-b5e6-96231b3b80d8

Drop mergeable flag, if size is no suitable

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53313 91177308-0d34-0410-b5e6-96231b3b80d8

Fix several bugs in named sections handling

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53312 91177308-0d34-0410-b5e6-96231b3b80d8

Add hacky way to distinguish named and named sections. This will be generalized in the future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53311 91177308-0d34-0410-b5e6-96231b3b80d8

Use 'gnu.linkonce', where needed

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53310 91177308-0d34-0410-b5e6-96231b3b80d8

Fix thinko

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53309 91177308-0d34-0410-b5e6-96231b3b80d8

Drop dead member reference

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53308 91177308-0d34-0410-b5e6-96231b3b80d8

Add funny darwin section selection logic

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53307 91177308-0d34-0410-b5e6-96231b3b80d8

Handle ELF mergeable sections

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53306 91177308-0d34-0410-b5e6-96231b3b80d8

Provide section selection for X86 ELF targets

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53305 91177308-0d34-0410-b5e6-96231b3b80d8

Provide general hook for section name calculation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53304 91177308-0d34-0410-b5e6-96231b3b80d8

Print entity size for mergeable sections

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53303 91177308-0d34-0410-b5e6-96231b3b80d8

Split PrintSectionFlags

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53302 91177308-0d34-0410-b5e6-96231b3b80d8

Split UniqueSectionForGlobal()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53301 91177308-0d34-0410-b5e6-96231b3b80d8

Split PreferredEHDataFormat hook

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53300 91177308-0d34-0410-b5e6-96231b3b80d8

Split X86TargetAsmInfo into 4 subtarget-specific classes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53299 91177308-0d34-0410-b5e6-96231b3b80d8

Whitespace cleanup

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53298 91177308-0d34-0410-b5e6-96231b3b80d8

Move flag decoding stuff into special hook

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53297 91177308-0d34-0410-b5e6-96231b3b80d8

Properly handle linkonce stuff

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53296 91177308-0d34-0410-b5e6-96231b3b80d8

Provide skeletone code for calculation of section, where global should be emitted into

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53295 91177308-0d34-0410-b5e6-96231b3b80d8

Use 'llvm-linkonce' consistently

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53294 91177308-0d34-0410-b5e6-96231b3b80d8

Make hooks virtual

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53293 91177308-0d34-0410-b5e6-96231b3b80d8

Add default section name resolution routine

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53292 91177308-0d34-0410-b5e6-96231b3b80d8

Constify

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53291 91177308-0d34-0410-b5e6-96231b3b80d8

Add code for default section falgs computation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53290 91177308-0d34-0410-b5e6-96231b3b80d8

Remove some unneeded includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53289 91177308-0d34-0410-b5e6-96231b3b80d8

Redo LegalizeTypes soft float support for
SINT_TO_FP and UINT_TO_FP.  This now produces
the same code as LegalizeDAG (the previous
code was based on a mistaken idea of what
LegalizeDAG did in this case).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53288 91177308-0d34-0410-b5e6-96231b3b80d8

Forgot to update the chain result when softening
loads.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53287 91177308-0d34-0410-b5e6-96231b3b80d8

LegalizeTypes soft float support for FP_TO_SINT and
FP_TO_UINT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53286 91177308-0d34-0410-b5e6-96231b3b80d8

LegalizeTypes support for powi soft float.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53285 91177308-0d34-0410-b5e6-96231b3b80d8

Make the role of MVT::i32 clearer here, and add a
note since it is not clear whether it is correct.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53284 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify, suggested by Chris Lattner.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53283 91177308-0d34-0410-b5e6-96231b3b80d8

Fold (a < 8) && (b < 8) into (a|b) < 8 for unsigned less or greater than.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53282 91177308-0d34-0410-b5e6-96231b3b80d8

Missed alignment argument on stores lowered from memcpy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53281 91177308-0d34-0410-b5e6-96231b3b80d8

Back out 53254. It broke ppc debug info codegen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53280 91177308-0d34-0410-b5e6-96231b3b80d8

Make the DICountVisitor not a visitor. This keeps us from calling virtual
functions and junk.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53279 91177308-0d34-0410-b5e6-96231b3b80d8

Silence warning by initializing variable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53278 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed features usage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53277 91177308-0d34-0410-b5e6-96231b3b80d8

Fold ((1 << a) & 1) to (a == 0).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53276 91177308-0d34-0410-b5e6-96231b3b80d8

Add a little wrapper header that is put around bc files when emitting
bc files for modules with a target triple that indicates they are for
darwin.  The reader unconditionally handles this, and the writer could
turn this on for more targets if we care.

This change has two benefits for darwin:

1) it allows us to encode the cpu type of the file in an easy to read
   place that doesn't require decoding the bc file.
2) it works around a bug (IMO) in darwin's AR where it is incapable of
   handling files that are not a multiple of 8 bytes long.  BC files
   are only guaranteed to be multiples of 4 bytes long.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53275 91177308-0d34-0410-b5e6-96231b3b80d8

random bugfix sitting in my tree.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53274 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a broken test.  Neither load is eliminable without changing the CFG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53273 91177308-0d34-0410-b5e6-96231b3b80d8

Fixe typos and 80 column size problems

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53272 91177308-0d34-0410-b5e6-96231b3b80d8

Reduce x - y to -y when we know the 'x' part will get masked off anyways.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53271 91177308-0d34-0410-b5e6-96231b3b80d8

MipsTargetLowering cleanup

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53270 91177308-0d34-0410-b5e6-96231b3b80d8

Remove getValueRange from SCEV. It wasn't doing anything there anyways, and a
more complete version is now available from the LoopVR pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53269 91177308-0d34-0410-b5e6-96231b3b80d8

Consistently put quotes around pass names in debugging output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53268 91177308-0d34-0410-b5e6-96231b3b80d8

If loop induction variable's start value is less then its exit value then do not split the loop.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53265 91177308-0d34-0410-b5e6-96231b3b80d8

const-ify SelectionDAG::getNodeValueTypes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53264 91177308-0d34-0410-b5e6-96231b3b80d8

It's no longer necessary to test if a MachineBasicBlock's
parent is non-null. It now always is.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53263 91177308-0d34-0410-b5e6-96231b3b80d8

Verify that MachineMemOperand alignment is a non-zero power of 2.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53262 91177308-0d34-0410-b5e6-96231b3b80d8

Factor out the code for computing an alignment value, and make it
available to getAtomic in addition to just getLoad and getStore,
to prevent MachineMemOperands with 0 alignment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53261 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the build.  Apparently MachineInstr& is no longer implicitly convertable to MachineBasicBlock::iterator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53260 91177308-0d34-0410-b5e6-96231b3b80d8

The graph name really does matter for configurations that use gv.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53259 91177308-0d34-0410-b5e6-96231b3b80d8

Make the local register allocator compute (purely local) liveness information for itself
rather than depending on LiveVariables.  This decreases compile time from:
0.5909s (LV + Regalloc) to 0.421s (just regalloc).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53256 91177308-0d34-0410-b5e6-96231b3b80d8

Testcase for debug info from data-only files.
This one is x86-32-Darwin specific.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53255 91177308-0d34-0410-b5e6-96231b3b80d8

Make debug info come out in data-only files.

This is a question of the debugging setup code not
being called at the right time, and it's called from
target-dependent code for some reason.  I have only
attempted to fix Darwin, but I'm pretty sure it's
broken elsewhere; I'll leave that to people who can
test it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53254 91177308-0d34-0410-b5e6-96231b3b80d8

Remove some dead code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53253 91177308-0d34-0410-b5e6-96231b3b80d8

fix dangling pointer and argv off by one errors.  Add support for --disable-inlining

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53249 91177308-0d34-0410-b5e6-96231b3b80d8

Do not CSE DEBUG_LOC, DBG_LABEL, DBG_STOPPOINT, DECLARE, and EH_LABEL SDNode's. This improves compile time slightly at -O0 -g.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53246 91177308-0d34-0410-b5e6-96231b3b80d8

Remove custom expansion from LegalizeTypes when doing
soft float: experiments show that targets aren't
expecting this for results or for operands.  Add
support select/select_cc result soft float and
correct operand soft float for these.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53245 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing select_cc libcall line, somehow omitted
in LegalizeTypes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53244 91177308-0d34-0410-b5e6-96231b3b80d8

improve comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53243 91177308-0d34-0410-b5e6-96231b3b80d8

'Optimize' test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53242 91177308-0d34-0410-b5e6-96231b3b80d8

Add a new hidden option to the interpreter to cause it to print
out every volatile load and store.  This is useful for tracking
down insane volatile memory bugs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53241 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR2496, a really nasty bug which involved sinking volatile loads
into phis.  This is actually the same bug as PR2262 /
2008-04-29-VolatileLoadDontMerge.ll, but I missed checking the first
predecessor for multiple successors.  Testcase here:
InstCombine/2008-07-08-VolatileLoadMerge.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53240 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase for PR2496

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53239 91177308-0d34-0410-b5e6-96231b3b80d8

Unbreak C++ tests on x86 Darwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53237 91177308-0d34-0410-b5e6-96231b3b80d8

Global variables beginning with \01 have special meaning on Darwin, so we need to remove
the name prefix when we change them from internal to external.  This allows bugpointing
of codegen miscompilations to work more reliably on Darwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53236 91177308-0d34-0410-b5e6-96231b3b80d8

LegalizeTypes support for FP_ROUND and FP_EXTEND
soft float.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53231 91177308-0d34-0410-b5e6-96231b3b80d8

Testcase for PR2520.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53230 91177308-0d34-0410-b5e6-96231b3b80d8

Add some helpers for manipulating function
parameter attributes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53228 91177308-0d34-0410-b5e6-96231b3b80d8

Pacify gcc-4.3.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53227 91177308-0d34-0410-b5e6-96231b3b80d8

Note that 'nest' only applies to pointers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53226 91177308-0d34-0410-b5e6-96231b3b80d8

Add CallSite::getArgumentNo() to be able to translate an operand number into a
argument number.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53225 91177308-0d34-0410-b5e6-96231b3b80d8

Add CallSite::getArgumentOffset() to hide the differences in operands betwen
Call and Invoke in a single method instead of having it hardcoded in multiple
places.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53224 91177308-0d34-0410-b5e6-96231b3b80d8

Add some convenience methods for manipulating
call attributes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53223 91177308-0d34-0410-b5e6-96231b3b80d8

Fix three bugs:

1) evaluate [v]fcmp true/false with undefs to true or false instead
   of undef.
2) fix vector comparisons with undef to return a vector result instead
   of i1
3) fix vector comparisons with evaluatable results to return vector
   true/false instead of i1 true/false (PR2529)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53220 91177308-0d34-0410-b5e6-96231b3b80d8

clarify :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53218 91177308-0d34-0410-b5e6-96231b3b80d8