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Author SHA1 Message Date
Dan Gohman
ec9b4ac914 Set NonLocalDepInfo's Size field to UnknownSize when invalidating 
it, so that it doesn't appear to be a known size.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118748 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 00:20:27 +00:00
Jakob Stoklund Olesen
1e8e72d72a Insert two blank SlotIndexes between basic blocks instead of just one. 
This is the first small step towards using closed intervals for liveness instead
of the half-open intervals we're using now.

We want to be able to distinguish between a SlotIndex that represents a variable
being live-out of a basic block, and an index representing a variable live-in to
its successor.

That requires two separate indexes between blocks. One for live-outs and one for
live-ins.

With this change, getMBBEndIdx(MBB).getPrevSlot() becomes stable so it stays
greater than any instructions inserted at the end of MBB.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118747 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 00:19:20 +00:00
Devang Patel
40d438e20a Document debuginfo-tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118746 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 00:13:39 +00:00
Jakob Stoklund Olesen
01f98abe3e Delete unused function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118743 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:56:02 +00:00
Jakob Stoklund Olesen
b5f327b30f No need to add liveness that's already there. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118742 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:56:00 +00:00
Jakob Stoklund Olesen
e93198af07 Hook up AliasAnalysis in InlineSpiller. This is used for rematerializing 
constant loads.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118741 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:55:56 +00:00
Jim Grosbach
954ffff79b Move LDM predicate operand encoding into base clase. Add STM missing STM 
encoding bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118738 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:44:32 +00:00
Jim Grosbach
5d5eb9e381 ARM LDM encoding for the mode (ia, ib, da, db) operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118736 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:38:36 +00:00
Rafael Espindola
c87a94a942 Factor some code into WriteSection. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118733 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:36:59 +00:00
Jim Grosbach
c1235e2a4e Fix ARM encoding of non-return LDM instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118732 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:18:49 +00:00
Jim Grosbach
866aa394ca Fix ARM encoding of LDM+Return instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118730 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:12:48 +00:00
Dan Gohman
2365f08c7d When clearing a non-local pointer dependency cache entry, clear 
the reverse map too. This fixes seflhost build errors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118729 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 22:35:02 +00:00
Rafael Espindola
1d739a010d Update the section index map after we add the medatada sections. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118728 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 22:34:07 +00:00
Devang Patel
62367045a4 Take care of special characters while creating named MDNode name to hold function specific local variable's info. 
This fixes radar 8653152. I am checking in testcase as a separate check-in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118726 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 22:19:21 +00:00
Rafael Espindola
4beee3d06b Use SectionIndexMap in WriteSymbolTable to make it a little less brittle. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118725 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 22:16:43 +00:00
Dan Gohman
533c2ad360 Factor out the code for computing an AliasAnalysis::Location 
for a given instruction into a helper function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118723 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 21:51:35 +00:00
Rafael Espindola
bab2a80525 Factor some code into ComputeIndexMap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118722 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 21:51:05 +00:00
Dan Gohman
733c54da1e Fully invalidate cached results when a prior query's size or 
type is insufficient for, or incompatible with, the current query.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118721 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 21:45:11 +00:00
Nate Begeman
bf5be2654e Fix an issue where we tried to turn a v2f32 build_vector into a v4i32 build vector with 2 elts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118720 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 21:35:41 +00:00
Duncan Sands
bc68d71d2a Reduce the maximum recursion depth, 5 seems pointlessly too much. 
Probably it should just be 1, but compromise with 3.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118718 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 20:53:24 +00:00
Dan Gohman
075fb5d68f Enhance GVN to do more precise alias queries for non-local memory 
references. For example, this allows gvn to eliminate the load in
this example:

  void foo(int n, int* p, int *q) {
    p[0] = 0;
    p[1] = 1;
    if (n) {
      *q = p[0];
    }
  }


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118714 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 20:37:15 +00:00
Rafael Espindola
af3d38f70e Change the String<size> methods to take a fragment instead of a buffer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118709 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 20:02:59 +00:00
Jakob Stoklund Olesen
cfa7134a9c Basic rematerialization during splitting. 
Whenever splitting wants to insert a copy, it checks if the value can be
rematerialized cheaply instead.

Missing features:
- Delete instructions when all uses have been rematerialized.
- Truncate live ranges to the remaining uses after rematerialization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118702 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 19:31:50 +00:00
Andrew Trick
f4baeaf848 RABasic is nearly functionally complete. There are a few remaining 
benchmarks hitting an assertion.
Adds LiveIntervalUnion::collectInterferingVRegs.
Fixes "late spilling" by checking for any unspillable live vregs among
all physReg aliases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118701 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 19:18:47 +00:00
Rafael Espindola
4283f4b81e Use MCSectionELF in places we know we have an ELF section. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118699 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 19:05:07 +00:00
Dan Gohman
3355c4e598 Use getValueOperand() and getPointerOperand() on load and store 
instructions instead of hard-coding operand numbers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118698 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 19:03:33 +00:00
Dan Gohman
e88ccb545d Rename AccessesArguments and AccessesArgumentsReadonly, and rewrite 
their comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118696 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 18:30:00 +00:00
Duncan Sands
a74a58c83b Teach InstructionSimplify how to look through PHI nodes. Since PHI 
nodes can be used in loops, this could result in infinite looping
if there is no recursion limit, so add such a limit.  It is also
used for the SelectInst case because in theory there could be an
infinite loop there too if the basic block is unreachable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118694 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 18:23:01 +00:00
Dan Gohman
b395e4a026 Fix a copy+pasto Duncan noticed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118693 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 18:18:23 +00:00
Dan Gohman
68a6056daf Add a doesAccessArgPointees helper function, and update code to use 
it, and to be consistent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118692 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 18:17:28 +00:00
Jim Grosbach
7c7ddb21c3 Simplify and clean up MC symbol lookup for ARM constant pool values. This fixes 
double quoting of ObjC symbol names in constant pool entries.

rdar://8652107

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118688 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 17:59:10 +00:00
Dan Gohman
432d08cbdb Factor out the code for testing whether a function accesses 
arbitrary memory into a helper function, and adjust some comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118687 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 17:34:04 +00:00
Dan Gohman
50bcaece67 Give NonLocalDepResult a NonLocalDepEntry member, replacing 
indivudal members holding the same data, to clarify the relationship
between NonLocalDepResult and NonLocalDepEntry.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118686 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 17:15:52 +00:00
Tobias Grosser
a84b567713 Detect if llvm-gcc is built on dragonegg. 
Store the flags needed to disable optimizations and to emit LLVM-IR depending on
the version of llvm-gcc used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118684 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 16:31:34 +00:00
Michael J. Spencer
6c43de46ff Fix Whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118683 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 15:06:00 +00:00
Michael J. Spencer
7aac79bdea System/Path: Update comments to match code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118682 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 15:05:50 +00:00
Michael J. Spencer
339b9121bd System/Win32/Path: Implement isSymLink. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118681 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 15:05:39 +00:00
Duncan Sands
b2cbdc35ba Simplify binary operations where one operand is a select instruction. 
The simplifications performed here never create new instructions, they
only return existing instructions (or a constant), and so are always a
win.  In theory they should transform (for example)
  %z = and i32 %x, %y
  %s = select i1 %cond, i32 %y, i32 %z
  %r = and i32 %x, %s
into
  %r = and i32 %x, y
but in practice they get into a fight with instcombine, and lose.
Unfortunately instcombine does a poor job in this case.  Nonetheless
I'm committing this transform to make it easier to discuss what to
do to make peace with instcombine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118679 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 13:00:08 +00:00
NAKAMURA Takumi
46cf7c5fd6 Win32/Process.inc: [PR8527] Process::FileDescriptorIsDisplayed(fd) should not check by FILE_TYPE_CHAR. It must be better to check it with Console API. 
The special file "NUL" is FILE_TYPE_CHAR with GetFileType(h). It was treated as display device and discarding output to NUL had failed. (eg. opt -o nul)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118678 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 08:37:47 +00:00
Duncan Sands
867fe8570f There is no EndPtr anymore - reinterpret the original comment in terms 
of InputData.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118677 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 07:46:36 +00:00
Jim Grosbach
2c4d5125c7 Update ARMConstantPoolValue to not use a modifier string. Use an explicit 
VariantKind marker to indicate the additional information necessary. Update
MC to handle the new Kinds. rdar://8647623



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118671 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 03:26:07 +00:00
Bruno Cardoso Lopes
0cf2b2b9f0 Add a test to the previous added clo instruction. Patch by Akira again 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118668 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 02:22:44 +00:00
Bruno Cardoso Lopes
c4bb67c8d9 Add clo instruction. Patch by Akira Hatanaka (ahatanaka@mips.com) with some minor tweaks 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118667 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 02:13:22 +00:00
Dale Johannesen
201ab3acff When checking that the necessary bits are zero in 
order to reduce ((x<<30)>>24) to x<<6, check the
correct bits.  PR 8547.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118665 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 01:30:56 +00:00
Bill Wendling
8ea974039a Emit a '!' if this is a "writeback" register or memory address. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118662 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 01:07:54 +00:00
Jakob Stoklund Olesen
b80e973c95 Simplify the LiveRangeEdit::canRematerializeAt() interface a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118661 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 01:05:12 +00:00
Dan Gohman
42c31a7073 Make ModRefBehavior a lattice. Use this to clean up AliasAnalysis 
chaining and simplify FunctionAttrs' GetModRefBehavior logic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118660 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 01:02:18 +00:00
Matt Beaumont-Gay
cc8d10e1a8 Rename a parameter to avoid confusion with a local variable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118656 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 00:08:58 +00:00
Bill Wendling
8e8b18bcfa Emit the warning about the register list not being in ascending order only once. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118653 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 23:45:59 +00:00
Dale Johannesen
18f601820c Jim's recent fixes 118600, 118587, 118513 have made these work. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118652 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 23:43:34 +00:00