Chris Lattner
eb388af89f
improve comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53531 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-13 21:55:46 +00:00
Chris Lattner
867661ac8b
factor another large hunk of code out into its own function.
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No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53530 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-13 21:53:26 +00:00
Chris Lattner
4f60e4de90
add a description.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53529 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-13 21:27:36 +00:00
Chris Lattner
3698909623
Final bit of simplification for FoldBranchToCommonDest.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53528 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-13 21:20:19 +00:00
Chris Lattner
70087f31f1
simplify logic a bit
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53527 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-13 21:15:11 +00:00
Chris Lattner
1347e87c7b
Refactor some code out into its own helper function, getting rid of crazy multiline
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conditionals and commenting the code better.
No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53526 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-13 21:12:01 +00:00
Duncan Sands
56eb133095
Fix comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53525 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-13 20:14:38 +00:00
Chris Lattner
3dda08ad5d
Fix PR2231 - opt -internalize -std-compile-opts should run internalize first
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53523 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-13 19:35:21 +00:00
Cedric Venet
9322fe02dd
Remove deleted files from VC++ project.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53521 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-13 11:12:36 +00:00
Ted Kremenek
a052246590
Inline typedef for alist_iterator::pointer to work with MSVC++.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53517 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-12 18:28:46 +00:00
Nick Lewycky
59cff12f88
Stop creating extraneous smax/umax in SCEV. This removes a regression where we
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started complicating many loops ('for' loops, in fact).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53508 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-12 07:41:32 +00:00
Nick Lewycky
066075030a
operator[] is not defined for list::iterator. Overload it in ilist::iterator
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to prevent silly things from happening accidentally. PR2171
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53507 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-12 07:00:52 +00:00
Nick Lewycky
3ac9e109b2
Enhance analysis of srem.
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Remove dead code analyzing urem. 'urem' of power-of-2 is canonicalized to an
'and' instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53506 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-12 05:04:38 +00:00
Evan Cheng
5330192ab5
Implement llvm.atomic.cmp.swap.i32 on PPC. Patch by Gary Benson!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53505 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-12 02:23:19 +00:00
Evan Cheng
b9890ae3c3
Typos.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53504 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-12 02:22:07 +00:00
Evan Cheng
79a796c2b1
Fix PR2536: a nasty spiller bug. If a two-address instruction uses a register but the use portion of its live range is not part of its liveinterval, it must be defined by an implicit_def. In that case, do not spill the use. e.g.
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8 %reg1024<def> = IMPLICIT_DEF
12 %reg1024<def> = INSERT_SUBREG %reg1024<kill>, %reg1025, 2
The live range [12, 14) are not part of the r1024 live interval since it's defined by an implicit def. It will not conflicts with live interval of r1025. Now suppose both registers are spilled, you can easily see a situation where both registers are reloaded before the INSERT_SUBREG and both target registers that would overlap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53503 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-12 01:56:02 +00:00
Evan Cheng
b5eec33dcd
Back out 53476 and 53480 for now. Somehow they cause llc to miscompile 179.art.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53502 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-12 01:38:51 +00:00
Dan Gohman
cddc11e757
Add a utility function to MachineInstr for testing whether an instruction
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has exactly one MachineMemOperand, and change some X86 lowering code to
make use of it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53498 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-12 00:10:52 +00:00
Dan Gohman
e6acf36dca
Fix spelling of "hierarchy" in comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53489 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 22:51:32 +00:00
Dan Gohman
e4f1a7e8ff
Fix typos in comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53487 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 22:48:20 +00:00
Dan Gohman
a54cf17661
Include a frame index in the "fixed stack" pseudo source value
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instead of using the frame index for the SVOffset, which was
inconsistent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53486 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 22:44:52 +00:00
Ted Kremenek
eca64f0980
Minor tweaks to the ImmutableList iterator interface.
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Added partial specialization of DenseMapInfo<T> for ImmutableList.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53485 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 22:43:07 +00:00
Bill Wendling
499d7cf188
Porting r53478 into mainline:
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Update to build_llvm. Don't output a floating point number for the version.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53484 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 22:42:10 +00:00
Dan Gohman
5e76c3be73
Fix an obsolete top-level comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53481 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 22:39:58 +00:00
Dan Gohman
0f4012f475
Factor out debugging code into the common base class.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53480 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 22:36:22 +00:00
Dan Gohman
dbe2a5a269
Add support for putting NamedRegionTimers in TimerGroups, and
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use a timer group for the timers in SelectionDAGISel. Also,
Split scheduling out from emitting, to give each their own
timer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53476 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 21:54:34 +00:00
Dan Gohman
c418bf3dd5
Use find instead of lower_bound.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53474 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 20:58:19 +00:00
Chris Lattner
78d60458d5
add support for returning i128, PR2532.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53472 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 20:53:00 +00:00
Dan Gohman
dc2fbddd9d
Trim unnecessary #includes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53471 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 20:38:31 +00:00
Owen Anderson
c45996bf74
Don't call lookupNumber more than we have to.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53470 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 20:05:13 +00:00
Duncan Sands
92e0834ac7
Remove an apparently useless routine: there should
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be no need to split the result of a vector RET node,
since they are always already legal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53462 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 17:02:09 +00:00
Duncan Sands
ac6cecec18
It is pointless to turn a UINT_TO_FP into an
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SINT_TO_FP libcall plus additional operations:
it might as well be a direct UINT_TO_FP libcall.
So only turn it into an SINT_TO_FP if the target
has special handling for SINT_TO_FP.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53461 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 17:00:14 +00:00
Duncan Sands
9bed0f58eb
Add two missing SINT_TO_FP libcalls.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53460 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 16:57:02 +00:00
Duncan Sands
edfba7e707
Port a shift-by-1 optimization from LegalizeDAG: it
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was presumably added after the rest of the code was
copied to LegalizeTypes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53459 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 16:54:57 +00:00
Duncan Sands
dddc6291fb
Add support for 128 bit shifts and 32 bit shifts
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on 16 bit machines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53458 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 16:52:29 +00:00
Nick Lewycky
7d9843fc37
Document 'mask' in this calculation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53454 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 08:16:26 +00:00
Duncan Sands
569d8f7087
Align comments, colons and cases. Remove trailing
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whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53453 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 07:37:30 +00:00
Nick Lewycky
1f26c188f8
Remove misleading constant from comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53452 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 07:36:19 +00:00
Nick Lewycky
4bf1e59819
Add another optimization from PR2330. Also catch some missing cases that are
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similar.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53451 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 07:20:53 +00:00
Bill Wendling
71ca353ae6
The frame address on an x86-64 box needs to be offset by -8, not -4.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53450 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 07:18:52 +00:00
Chris Lattner
d01bee7170
a missed optimization that Eli spotted
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53449 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 06:40:29 +00:00
Chris Lattner
f9685ac68e
another bug in the same line.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53448 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 06:38:16 +00:00
Chris Lattner
a8ff4a88bb
fix a bug spotted by Eli's eagle eyes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53447 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 06:36:01 +00:00
Chris Lattner
183661e43a
simplify and merge a bunch of code. Instead of comparing against
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the min/max values for an integer type, compare against the min/max
values we can prove contain the input. This might be a tighter bound,
so this is general goodness.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53446 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 05:40:05 +00:00
Chris Lattner
84dff672a4
fold away (x <= cst) earlier, allowing us to not have to
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handle them in some code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53445 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 05:08:55 +00:00
Chris Lattner
85b5eb0505
Fix folding of icmp's of i1 where the comparison is signed. The code
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was using the algorithm for folding unsigned comparisons which is
completely wrong. This has been broken since the signless types change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53444 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 04:20:58 +00:00
Chris Lattner
f299184565
Fix a bogus optimization: folding (slt (zext i1 A to i32), 1) -> (slt i1 A, true)
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This cause a regression in InstCombine/JavaCompare, which was doing the right
thing on accident. To handle the missed case, generalize the comparisons based
on masked bits a little bit to handle comparisons against the max value. For
example, we can now xform (slt i32 (and X, 4), 4) -> (setne i32 (and X, 4), 4)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53443 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 04:09:09 +00:00
Chris Lattner
99672cb130
make this condition more precise.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53442 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 03:54:57 +00:00
Chris Lattner
1913b94c11
regenerate
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53440 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 00:30:39 +00:00
Chris Lattner
d15990189d
Implement PR2538
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53438 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 00:30:06 +00:00