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17751dac3e
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13236 Commits

Author SHA1 Message Date
Evan Cheng
17751dac3e Fix a minor regression from my dag combiner changes. One more place which needs to look pass truncates. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92885 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-07 00:54:06 +00:00
Jim Grosbach
9631864688 80 column violations 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92876 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 23:54:42 +00:00
Jakob Stoklund Olesen
30ac0467ce Add Target hook to duplicate machine instructions. 
Some instructions refer to unique labels, and so cannot be trivially cloned
with CloneMachineInstr.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92873 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 23:47:07 +00:00
Jim Grosbach
ce3e769c15 Addressing mode 6 (load/store) instructions can't encode an immediate offset 
for stack references.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92871 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 23:45:18 +00:00
Evan Cheng
d40d03e1bd Teach dag combine to fold the following transformation more aggressively: 
(OP (trunc x), (trunc y)) -> (trunc (OP x, y))

Unfortunately this simple change causes dag combine to infinite looping. The problem is the shrink demanded ops optimization tend to canonicalize expressions in the opposite manner. That is badness. This patch disable those optimizations in dag combine but instead it is done as a late pass in sdisel.

This also exposes some deficiencies in dag combine and x86 setcc / brcond lowering. Teach them to look pass ISD::TRUNCATE in various places.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92849 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 19:38:29 +00:00
Duncan Sands
e10920d678 Fix a README item: have functionattrs look through selects and 
phi nodes when deciding which pointers point to local memory.
I actually checked long ago how useful this is, and it isn't
very: it hardly ever fires in the testsuite, but since Chris
wants it here it is!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92836 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 15:37:47 +00:00
Duncan Sands
7c422ac216 Partially address a README by having functionattrs consider calls to 
memcpy, memset and other intrinsics that only access their arguments
to be readnone if the intrinsic's arguments all point to local memory.
This improves the testcase in the README to readonly, but it could in
theory be made readnone, however this would involve more sophisticated
analysis that looks through the memcpy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92829 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 08:45:52 +00:00
Dale Johannesen
b7339d079d Reenable debug info on PPC. Works well enough to 
bootstrap.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92818 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 02:21:00 +00:00
Dale Johannesen
e89c510c0a Make sure debug info hook gets called when emitting 
synonyms for PPC.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92817 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 02:20:18 +00:00
Johnny Chen
8314299161 Undo r92785, it caused test failure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92796 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 22:37:28 +00:00
Johnny Chen
83f1136cfd Add Rt2 to the asm format string for 32-bit Thumb load/store register dual 
instructions.  Thumb does not have the restriction that t2 = t+1.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92785 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 21:51:46 +00:00
Jakob Stoklund Olesen
e5319202af Don't specify CR sub-registers as implicit defs of BL instructions. 
It is enough to give the super registers CR0, CR1, ..., and specifying the
sub-registers as well causes confusion in the liveness computations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92778 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 21:38:37 +00:00
Benjamin Kramer
8c65f6e71c Move remaining stuff to the isInteger predicate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92771 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 21:05:54 +00:00
Benjamin Kramer
11acaa374c Convert a ton of simple integer type equality tests to the new predicate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92760 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 20:07:06 +00:00
Evan Cheng
54de3ea1ca Code refactoring. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92694 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 06:52:31 +00:00
David Greene
9759c305c2 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92655 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:29:36 +00:00
David Greene
f5c95a6ee2 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92654 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:29:34 +00:00
David Greene
5b90132332 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92653 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:29:29 +00:00
David Greene
92f164416b Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92651 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:29:23 +00:00
David Greene
bd7b8458d1 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92648 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:29:13 +00:00
David Greene
d7f4f24d3f Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92647 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:29:08 +00:00
David Greene
c719d5f621 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92644 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:28:53 +00:00
Dan Gohman
eeb3a00b84 Change SelectCode's argument from SDValue to SDNode *, to make it more 
clear what information these functions are actually using.

This is also a micro-optimization, as passing a SDNode * around is
simpler than passing a { SDNode *, int } by value or reference.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92564 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:24:18 +00:00
Devang Patel
44a29e066a Remove dead debug info intrinsics. 
Intrinsic::dbg_stoppoint
 Intrinsic::dbg_region_start 
 Intrinsic::dbg_region_end 
 Intrinsic::dbg_func_start
AutoUpgrade simply ignores these intrinsics now.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92557 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 01:10:40 +00:00
Dan Gohman
4361bbfd0e Remove the SDNPAssociative properties for the flags-producing 
operators. Eli pointed out that it's not obvious what that
would mean.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92555 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 00:44:20 +00:00
Evan Cheng
760d1945bc Perform this folding as a target specific dag combine: 
(or (x << c) | (y >> (64 - c))) ==> (shld64 x, y, c)

The isel patterns may not catch all the cases if general dag combine has reduced width of source operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92513 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 21:22:48 +00:00
Dan Gohman
3c02c22ef9 Remove some README.txt entries which are now implemented. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92511 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 20:55:05 +00:00
Dan Gohman
3cc4a307a8 A use by operand 1 or 2 of a SELECT is not a FLAGS use. This 
lets the test-elimination work in more conditional-move cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92508 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 20:52:50 +00:00
Dan Gohman
9ef51c8011 Flags-producing add, and, or, etc. have the same profibility 
rules as normal add, and, or, etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92507 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 20:51:50 +00:00
Dan Gohman
43ffe6769a Add SDNPCommutative and SDNPAssociative to several X86 target nodes. 
This lets isel fold loads into them in more cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92506 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 20:51:05 +00:00
Anton Korobeynikov
39784e158a Fix invalid chain folding for memory variant of sdiv / udiv 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92472 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 10:31:54 +00:00
Chris Lattner
e4412c1f0b implement an instcombine xform needed by clang's codegen 
on the example in PR4216.  This doesn't trigger in the testsuite,
so I'd really appreciate someone scrutinizing the logic for
correctness.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92458 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 06:03:59 +00:00
Chris Lattner
f031e8ad01 Teach codegen to lower llvm.powi to an efficient (but not optimal) 
multiply sequence when the power is a constant integer.  Before, our
codegen for std::pow(.., int) always turned into a libcall, which was
really inefficient.

This should also make many gfortran programs happier I'd imagine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92388 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-01 03:32:16 +00:00
Chris Lattner
398ffba75f update this. To take the next step, llvm.powi should be generalized to work 
on integers as well and codegen should lower them to branch trees.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92382 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-01 01:29:26 +00:00
Benjamin Kramer
7f1a560b2f Replace a few more SmallVectors with arrays. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92265 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-29 16:57:26 +00:00
Sanjiv Gupta
223497e1ef Extern declaration for unordered.f32 libcall was not being emitted. Fixed that. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92242 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-29 03:24:34 +00:00
Chris Lattner
43469b6957 move debug info stuff out of line, allowing two #includes 
to go away from IRBuilder.h


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92230 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 21:45:40 +00:00
Benjamin Kramer
e55b15fa47 Add missing include (for inline PATypeHolder::get). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92222 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 12:27:56 +00:00
Sanjiv Gupta
917283a418 Fixed llc crash for zext (i1 -> i8) loads. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92201 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 04:53:24 +00:00
Sanjiv Gupta
8f17a36d31 Allow targets to specify the return type of libcalls that are generated for floating point comparisons, rather than hard-coding them as i32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92199 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 02:40:33 +00:00
Bill Wendling
202249a698 Mark variable used by 'assert' as 'unused'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92198 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 02:07:00 +00:00
Bill Wendling
57f08adbb3 Remove dead variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92197 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 02:05:36 +00:00
Bill Wendling
53df23cff4 Remove dead variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92196 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 02:04:53 +00:00
Bill Wendling
cc690b694a Remove dead variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92195 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 02:01:06 +00:00
Bill Wendling
ab58f13839 Remove dead variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92194 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 02:00:30 +00:00
Bill Wendling
9bf50f45e7 Remove dead variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92193 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 01:57:39 +00:00
Bill Wendling
3ef10858de Remove dead variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92186 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 01:42:12 +00:00
Bill Wendling
67f9dc2559 Remove dead variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92185 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 01:41:12 +00:00
Bill Wendling
c41b638d4a Remove dead variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92184 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 01:36:02 +00:00
Bill Wendling
ce90c245ff Remove dead store. The initial value was never used, but always overridden. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92182 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 01:31:11 +00:00