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Author SHA1 Message Date
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
Rafael Espindola
34be396a12 Fixed version of 118639 with an extra assert to catch similar problems 
earlier. Implicit bool -> int conversions are evil!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118651 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 23:42:07 +00:00
Bill Wendling
5fa22a1975 s/std::vector/SmallVector/ 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118648 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 23:28:44 +00:00
Rafael Espindola
037b5be15a Revert previous patch. Missed a case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118645 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 22:54:38 +00:00
Bill Wendling
c3236753d6 Delete the allocated vector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118644 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 22:51:42 +00:00
Bob Wilson
66f6c79450 Define the subtarget feature for the architecture version, 
as derived from the target triple.  This is important for enabling
features that are implied based on the architecture version.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118643 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 22:50:47 +00:00
Bob Wilson
54f9256380 Do not use MEMBARRIER_MCR for any Thumb code. 
It is only supported for ARM code.  Normally Thumb2 code would use DMB instead,
but depending on how the compiler is invoked (e.g., -mattr=-db) that might be
disabled.  This prevents a "cannot select MEMBARRIER_MCR" error in that
situation.  Radar 8644195

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118642 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 22:50:44 +00:00
Bill Wendling
7729e06c12 Two types of instructions have register lists: 
* LDM, et al, uses a bit mask to indicate the register list.
* VLDM, et al, uses a base register plus number.

The LDM instructions may be non-contiguous, but the VLDM ones must be
contiguous. Those are semantic checks that should be done later in the
compiler. Also postpone the creation of the bit mask until it's needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118640 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 22:44:22 +00:00
Rafael Espindola
e61a1ac595 Remove IsExplicit. It was always false. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118639 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 22:37:44 +00:00
Jim Grosbach
3a2429a86c Change the ARMConstantPoolValue modifier string to an enumeration. This will 
help in MC'izing the references that use them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118633 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 21:36:17 +00:00
Andrew Trick
071d1c063f Adds RABasic verification and tracing. 
(retry now that the windows build is green)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118630 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 21:04:34 +00:00
Dan Gohman
50a04d067f Convert comments to doxygen syntax. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118628 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 20:33:57 +00:00
Dan Gohman
4cf0dcfb44 Teach FunctionAttrs about the VAArg instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118627 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 20:17:38 +00:00
Dan Gohman
6d44d64f61 Use the AliasAnalysis interface to determine how a Function accesses 
memory. This isn't a real improvement with present day AliasAnalysis
implementations; it's mainly for consistency.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118624 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 20:13:27 +00:00
Dan Gohman
1cdaa3e5b1 VAArg doesn't capture its operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118623 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 20:09:35 +00:00
Dan Gohman
9423f63365 Translate IntrReadArgMem to AccessesArgumentsReadonly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118622 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 20:07:20 +00:00
Dan Gohman
c07661c1fa Teach AliasAnalysis about AccessesArgumentsReadonly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118621 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 20:06:55 +00:00
Dan Gohman
cd93f3bbb9 Teach LICM and AliasSetTracker about AccessesArgumentsReadonly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118618 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:58:21 +00:00
Dan Gohman
40b6a19daa Teach FunctionAttrs about AccessesArgumentsReadonly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118617 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:56:27 +00:00
Matt Beaumont-Gay
e33daaaaf9 Add a trivial virtual dtor to AbstractRegisterDescription to appease 
-Wnon-virtual-dtor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118616 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:56:25 +00:00
Dan Gohman
4a53f37a1a AccessesArgumentsReadonly is read-only. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118615 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:50:00 +00:00
Dan Gohman
db78c4873e Add a AccessesArgumentsReadonly ModRefBehavior value, so that the intrinsic 
property IntrReadArgMem can be modeled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118614 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:48:55 +00:00
Andrew Trick
32d9aeb1df Reverting r118604. Windows build broke. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118613 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:47:51 +00:00
Dan Gohman
467a0adfc8 Factor out the logic for onlyReadsMemory into a helper function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118611 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:43:24 +00:00
Dan Gohman
7293ac1281 Delete AccessesArgumentsAndGlobals, which was unused. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118610 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:41:37 +00:00
Jim Grosbach
c9962aca8f Handle ARM constant pool values that need an explicit reference to the '.' 
pseudo-label. (TLS stuff).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118609 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:40:22 +00:00
Chris Lattner
274191fa70 add a case we fail to devirt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118608 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:37:28 +00:00