a2de8eab61
Fixes the last x86-64 test failure in compat.exp:
...
<16 x float> is 64-byte aligned (for some reason),
which gets us into the stack realignment code. The
computation changing FP-relative offsets to SP-relative
was broken, assiging a spill temp to a location
also used for parameter passing. This
fixes it by rounding up the stack frame to a multiple
of the largest alignment (I concluded it wasn't fixable
without doing this, but I'm not very sure.)
llvm-svn: 52750
2008-06-26 01:51:13 +00:00
3f1c75c4d8
Remove unused function.
...
llvm-svn: 52749
2008-06-26 01:19:35 +00:00
d0ab9c47e6
Move GetConstantStringInfo to lib/Analysis. Remove
...
string output routine from Constant. Update all
callers. Change debug intrinsic api slightly to
accomodate move of routine, these now return values
instead of strings.
llvm-svn: 52748
2008-06-26 00:31:12 +00:00
b1e66ce3bb
when we know the signbit of an input to uint_to_fp is zero,
...
change it to sint_to_fp on targets where that is cheaper (and
visaversa of course). This allows us to compile uint_to_fp to:
_test:
movl 4(%esp), %eax
shrl $23, %eax
cvtsi2ss %eax, %xmm0
movl 8(%esp), %eax
movss %xmm0, (%eax)
ret
instead of:
.align 3
LCPI1_0: ## double
.long 0 ## double least significant word 4.5036e+15
.long 1127219200 ## double most significant word 4.5036e+15
.text
.align 4,0x90
.globl _test
_test:
subl $12, %esp
movl 16(%esp), %eax
shrl $23, %eax
movl %eax, (%esp)
movl $1127219200, 4(%esp)
movsd (%esp), %xmm0
subsd LCPI1_0, %xmm0
cvtsd2ss %xmm0, %xmm0
movl 20(%esp), %eax
movss %xmm0, (%eax)
addl $12, %esp
ret
llvm-svn: 52747
2008-06-26 00:16:49 +00:00
b55675e1db
Remember which MachineOperand we were processing, so we don't have to scan the list to find it again later.
...
This speeds up live intervals from 0.37s to 0.30s on instcombine.
llvm-svn: 52745
2008-06-25 23:39:39 +00:00
39b07db75a
Fix the text in an assert string.
...
llvm-svn: 52744
2008-06-25 22:14:43 +00:00
3fc2372d3a
- Fix a x86 vector isel bug: illegal transformation of a vector_shuffle into a
...
shift.
- Add a readme entry for a missing vector_shuffle optimization that results in
awful codegen.
llvm-svn: 52740
2008-06-25 20:52:59 +00:00
33ff5c8d0d
Add support for expanding PPC 128 bit floats.
...
For this it is convenient to permit floats to
be used with EXTRACT_ELEMENT, so I tweaked
things to allow that. I also added libcalls
for ppcf128 to i32 forms of FP_TO_XINT, since
they exist in libgcc and this case can certainly
occur (and does occur in the testsuite) - before
the i64 libcall was being used. Also, the
XINT_TO_FP result seemed to be wrong when
the argument is an i128: the wrong fudge
factor was added (the i32 and i64 cases were
handled directly, but the i128 code fell
through to some generic softening code which
seemed to think it was i64 to f32!). So I
fixed it by adding a fudge factor that I
found in my breakfast cereal.
llvm-svn: 52739
2008-06-25 20:24:48 +00:00
58ecfbdad6
Implement JIT support for global aliases, patch by David Chisnall!
...
llvm-svn: 52738
2008-06-25 20:21:35 +00:00
88ca48b09d
Restore DeadArgElim back to 52570. It's breaking 447.dealII.
...
llvm-svn: 52736
2008-06-25 18:10:09 +00:00
d3406fc2a7
Switch the PPC backend and target-independent JIT to use the libsystem
...
InvalidateInstructionCache method instead of calling through
a hook on the JIT. This is a host feature, not a target feature.
llvm-svn: 52734
2008-06-25 17:18:44 +00:00
b4325a8316
fix compilation errors in my previous patch
...
llvm-svn: 52733
2008-06-25 17:17:53 +00:00
881d537d2c
Add a new InvalidateInstructionCache method to sys::Memory.
...
llvm-svn: 52731
2008-06-25 17:14:10 +00:00
906b630f83
SimpleInstructionSelector is here no more.
...
llvm-svn: 52725
2008-06-25 16:38:59 +00:00
6920b254ad
Add/complete support for integer and float
...
select_cc and friends. This code could be
factorized a bit but I'm not sure that it's
worth it.
llvm-svn: 52724
2008-06-25 16:34:21 +00:00
1b03c2ac98
Pacify gcc-4.3.
...
llvm-svn: 52723
2008-06-25 16:31:18 +00:00
aa01afd47c
Remove the OrigVT member from AtomicSDNode, as it is redundant with
...
the base SDNode's VTList.
llvm-svn: 52722
2008-06-25 16:07:49 +00:00
6a490371c9
Added MemOperands to Atomic operations since Atomics touches memory.
...
Added abstract class MemSDNode for any Node that have an associated MemOperand
Changed atomic.lcs => atomic.cmp.swap, atomic.las => atomic.load.add, and
atomic.lss => atomic.load.sub
llvm-svn: 52706
2008-06-25 08:15:39 +00:00
2e2001d8b9
Fix a (false) warning on darwin.
...
llvm-svn: 52705
2008-06-25 08:12:16 +00:00
4e1cf1e7d7
Fix some cosmetics in comments.
...
llvm-svn: 52704
2008-06-25 08:10:21 +00:00
5fd28b54c7
- Use O(1) check of basic block size limit.
...
- Avoid speculatively execute vector ops.
llvm-svn: 52703
2008-06-25 07:50:12 +00:00
c9c81fb0df
Fix PR2488, a case where we deleted stack restores too aggressively.
...
llvm-svn: 52702
2008-06-25 05:59:28 +00:00
73db52ebf8
Enable two-address remat by default.
...
llvm-svn: 52701
2008-06-25 01:16:38 +00:00
ee9c30d435
Use push_back rather than operator[], which is incorrect in this cases. Unfortunately, this slow the testcase down a little bit,
...
but only marginally.
llvm-svn: 52700
2008-06-25 01:05:05 +00:00
5ceb8b676c
Append to the ActiveTimers std::vector before looking at the timer instead
...
of after, so that any reallocation it does doesn't get counted for the pass
being timed. This probably doesn't account for a timing discrepancy I was
looking into, but I'm fixing it anyway.
llvm-svn: 52693
2008-06-24 22:07:07 +00:00
e5f4ffbdf1
Add v2f32 (MMX) type to X86. Support is primitive:
...
load,store,call,return,bitcast. This is enough to
make call and return work.
llvm-svn: 52691
2008-06-24 22:01:44 +00:00
79c69bc45f
In ConstantArray::getAsString(), we know the size of the resultant string in advance so we can pre-allocate it and just fill in
...
the entries. This improves the time for the AsmPrinter on InstructionCombining.cpp from 0.4248s to 0.3370s.
llvm-svn: 52690
2008-06-24 21:58:29 +00:00
230b3eb80c
Use SmallVector instead of std::vector for a minor compile time improvement.
...
llvm-svn: 52689
2008-06-24 21:44:59 +00:00
04c8bd7e11
Revert 52645, the loop unroller changes. It caused a regression in 252.eon.
...
llvm-svn: 52688
2008-06-24 20:44:42 +00:00
4be44e62b3
Fix a typo in a comment.
...
llvm-svn: 52687
2008-06-24 18:00:21 +00:00
61163850af
Use const_cast instead of a C-style cast.
...
llvm-svn: 52684
2008-06-24 17:47:37 +00:00
c702e1d32f
Commit the new DeadArgElim pass again, this time with the gcc bootstrap failures fixed.
...
Also add a testcase to reproduce the gcc bootstrap failure in very much reduced form.
llvm-svn: 52677
2008-06-24 16:30:26 +00:00
19a6469e1b
Rename a few variables to be more consistent.
...
llvm-svn: 52672
2008-06-24 09:14:10 +00:00
3f2ceac565
If it's determined safe, remat MOV32r0 (i.e. xor r, r) and others as it is instead of using the longer MOV32ri instruction.
...
llvm-svn: 52670
2008-06-24 07:10:51 +00:00
4aef821183
Fix some signed vs. unsigned issues in array and vector handling.
...
llvm-svn: 52664
2008-06-24 01:17:52 +00:00
02a2aaf2e7
Add a note about a potential PIC optimization.
...
llvm-svn: 52663
2008-06-24 00:53:07 +00:00
76600aa35c
Fixes for being compiled PIC on Linux. This isn't the most
...
general solution possible, but it's a fairly simple one.
Based on a patch from the OpenGTL project!
llvm-svn: 52662
2008-06-24 00:50:01 +00:00
9cc3f68ab1
A brief survey of priority_queue usage in the tree turned this up
...
as a questionable case, but the code isn't actually needed.
llvm-svn: 52657
2008-06-23 23:51:16 +00:00
c44659b92a
This situation can occur:
...
,------.
| |
| v
| t2 = phi ... t1 ...
| |
| v
| t1 = ...
| ... = ... t1 ...
| |
`------'
where there is a use in a PHI node that's a predecessor to the defining
block. We don't want to mark all predecessors as having the value "alive" in
this case. Also, the assert was too restrictive and didn't handle this case.
llvm-svn: 52655
2008-06-23 23:41:14 +00:00
0d8a61eb60
Use the new PriorityQueue in ScheduleDAGList too, which also
...
needs arbitrary-element removal.
llvm-svn: 52654
2008-06-23 23:40:09 +00:00
abd8f41c81
Use use_empty() instead of getNumUses(), avoiding a use list traversal.
...
llvm-svn: 52651
2008-06-23 23:23:49 +00:00
79d2fa52fa
Use getMBBEndIdx rather than assuming that the end is right after the last instruction in the block.
...
llvm-svn: 52649
2008-06-23 22:12:23 +00:00
ac563833ae
Fix spelling and grammar in a comment.
...
llvm-svn: 52648
2008-06-23 22:11:52 +00:00
48c5c7e860
Revamp the loop unroller, extending it to correctly update PHI nodes
...
in the presence of out-of-loop users of in-loop values and the trip
count is not a known multiple of the unroll count, and to be a bit
simpler overall. This fixes PR2253.
llvm-svn: 52645
2008-06-23 21:29:41 +00:00
71013f8c78
Remove option used to debug stack coloring bugs. It's no longer needed since stack coloring is now bug free.
...
llvm-svn: 52644
2008-06-23 21:24:32 +00:00
403e567043
Disable PRE. It's breaking bootstrapping.
...
llvm-svn: 52643
2008-06-23 21:22:35 +00:00
fa63cc4e91
Move a DenseMap's declaration outside of a loop, and just call
...
clear() on each iteration. This avoids allocating and deallocating
all of DenseMap's memory on each iteration.
llvm-svn: 52642
2008-06-23 21:15:00 +00:00
c72dcd103c
Instead of adding an isSS field to LiveInterval to denote stack slot. Use top bit of 'reg' instead. If the top bit is set, than the LiveInterval represents a stack slot live interval.
...
llvm-svn: 52639
2008-06-23 21:03:19 +00:00
41b744dc51
First step to fix PR2088. Implement routine to compute the
...
multiplicative inverse of a given number. Modify udivrem to allow input and
output pairs of arguments to overlap. Patch is based on the work by Chandler
Carruth.
llvm-svn: 52638
2008-06-23 19:39:50 +00:00
b936ea7fc4
Update the .cvs files.
...
llvm-svn: 52637
2008-06-23 18:43:26 +00:00
a7c3e0e120
Fix the types for NumElements variables, and add a comment
...
explaining why empty array constants use ValID::createUndef().
llvm-svn: 52636
2008-06-23 18:40:28 +00:00
54e02194a1
Tighten the conditions under which we do PRE, remove some unneeded code, and correct our preserved analyses list, since we
...
do now change the CFG by splitting critical edges during PRE.
llvm-svn: 52631
2008-06-23 17:49:45 +00:00
4d754bc97b
minor tidying of comments.
...
llvm-svn: 52630
2008-06-23 17:11:23 +00:00
210e6c1876
Remove two convenience constructors because they're now private, and the
...
private implementation doesn't really need the convenience.
llvm-svn: 52629
2008-06-23 16:48:17 +00:00
031f0bba15
Use std::copy instead of a loop.
...
llvm-svn: 52628
2008-06-23 16:45:24 +00:00
a469bdbcdf
More changes from Chris' review: simplify getIndices and avoid
...
copying its return value.
llvm-svn: 52627
2008-06-23 16:39:44 +00:00
b4e2637e9b
Duncan pointed out this code could be tidied.
...
llvm-svn: 52624
2008-06-23 15:29:14 +00:00
d803ce29a8
Port some integer multiplication fixes from LegalizeDAG.
...
Bail out with an error if there is no libcall available
for the given size of integer.
llvm-svn: 52622
2008-06-23 15:15:44 +00:00
73ceffa3df
Support for expanding the result of EXTRACT_ELEMENT.
...
llvm-svn: 52621
2008-06-23 15:08:15 +00:00
bc12dce8bb
Cleanup up LegalizeTypes handling of loads and
...
stores.
llvm-svn: 52620
2008-06-23 14:19:45 +00:00
00fdbd01e5
At Chris' suggestion, move the liveness and worklist datastructures into
...
instance variables so they can be allocated just once, and reuse the worklist
as the dead list as well.
llvm-svn: 52618
2008-06-23 06:13:12 +00:00
5ca5e02480
Improve LSR's dead-phi detection to handle use-def cycles
...
with more than two nodes.
llvm-svn: 52617
2008-06-22 20:44:02 +00:00
90071075e2
Use Loop::block_iterator.
...
llvm-svn: 52616
2008-06-22 20:18:58 +00:00
05e8973559
Generalize createSCEV to be able to form SCEV expressions from
...
ConstantExprs.
llvm-svn: 52615
2008-06-22 19:56:46 +00:00
6829fffaee
Use SCEVAddRecExpr::isAffine.
...
llvm-svn: 52614
2008-06-22 19:23:09 +00:00
1f2b2a4abe
Remove unnecessary #includes.
...
llvm-svn: 52613
2008-06-22 19:21:26 +00:00
0e4cf89f1a
Move a few more SCEVExpander methods out-of-line.
...
llvm-svn: 52612
2008-06-22 19:09:18 +00:00
6ff85681e4
Fix PR2369 by making scalarrepl more careful about promoting
...
structures. Its default threshold is to promote things that are
smaller than 128 bytes, which is sane. However, it is not sane
to do this for things that turn into 128 *registers*. Add a cap
on the number of registers introduced, defaulting to 128/4=32.
llvm-svn: 52611
2008-06-22 17:46:21 +00:00
5fb92e58de
Make custom lowering of ADD work correctly. This
...
fixes PR2476; patch by Richard Osborne. The same
problem exists for a bunch of other operators, but
I'm ignoring this because they will be automagically
fixed when the new LegalizeTypes infrastructure lands,
since it already solves this problem centrally.
llvm-svn: 52610
2008-06-22 09:42:16 +00:00
d3449df326
Fix for PR2479: correctly optimize expressions like (a > 13) & (a ==
...
15).
See also PR1800, which is about the signed case.
llvm-svn: 52608
2008-06-21 23:36:13 +00:00
158ff2c4a9
Use Instruction::eraseFromParent().
...
llvm-svn: 52606
2008-06-21 22:08:46 +00:00
c7076914ac
Use Function's arg_size() and size() methods.
...
llvm-svn: 52605
2008-06-21 22:06:54 +00:00
546505e7e1
Simplify some getNode calls.
...
llvm-svn: 52604
2008-06-21 22:06:07 +00:00
ea0452016e
canClobberPhysRegDefs shouldn't called without checking hasPhysRegDefs;
...
check this with an assert.
llvm-svn: 52603
2008-06-21 22:05:24 +00:00
33204b7c20
Avoid creating a redundant zero APInt.
...
llvm-svn: 52602
2008-06-21 22:03:12 +00:00
38c19aae38
Use clear() to zero an existing APInt.
...
llvm-svn: 52601
2008-06-21 22:02:15 +00:00
1ac5813726
Use back() instead of [size()-1].
...
llvm-svn: 52600
2008-06-21 22:00:54 +00:00
55083d5dd3
Use MachineBasicBlock::transferSuccessors.
...
llvm-svn: 52594
2008-06-21 20:21:19 +00:00
1cf5af9e42
Use static_cast instead of reinterpret_cast for casting void*.
...
llvm-svn: 52592
2008-06-21 20:17:03 +00:00
8459e0bc59
Fix warning when assertions disabled.
...
llvm-svn: 52590
2008-06-21 19:49:01 +00:00
e635acab67
fix warning when assertions disabled.
...
llvm-svn: 52589
2008-06-21 19:48:22 +00:00
18a3284a0a
fix warning when assertion disabled.
...
llvm-svn: 52588
2008-06-21 19:47:44 +00:00
106b046d83
fix some warnings when assertions are disabled.
...
llvm-svn: 52587
2008-06-21 19:47:03 +00:00
14b911d929
Remove a redundant return.
...
llvm-svn: 52585
2008-06-21 19:34:57 +00:00
46520a25a4
Remove ScheduleDAG's SUnitMap altogether. Instead, use SDNode's NodeId
...
field, which is otherwise unused after instruction selection, as an index
into the SUnit array.
llvm-svn: 52583
2008-06-21 19:18:17 +00:00
a4db3352f9
Add a priority queue class, which is a wrapper around std::priority_queue
...
and provides fairly efficient removal of arbitrary elements. Switch
ScheduleDAGRRList from std::set to this new priority queue.
llvm-svn: 52582
2008-06-21 18:35:25 +00:00
3bb8999719
Support for load/store of expanded float types. I
...
don't know if a truncating store is possible here,
but added support for it anyway.
llvm-svn: 52577
2008-06-21 17:00:47 +00:00
e6e1348275
Change ScheduleDAG's SUnitMap from DenseMap<SDNode*, vector<SUnit*> >
...
to DenseMap<SDNode*, SUnit*>, and adjust the way cloned SUnit nodes are
handled so that only the original node needs to be in the map.
This speeds up llc on 447.dealII.llvm.bc by about 2%.
llvm-svn: 52576
2008-06-21 15:52:51 +00:00
42bbca11cc
Enable PRE.
...
llvm-svn: 52574
2008-06-21 07:26:53 +00:00
f593a65497
Undo spill weight tweak. Need to investigate the performance regressions.
...
llvm-svn: 52572
2008-06-21 06:45:54 +00:00
4b49be1cbe
Simplify some template parameterization.
...
llvm-svn: 52571
2008-06-21 01:08:22 +00:00
33067210d1
Back out Matthijs' DAE patches. It's miscompiling gcc driver.
...
llvm-svn: 52570
2008-06-21 00:31:44 +00:00
efc67e78d7
Enhanced heuristic to determine the *best* register to spill. Instead of picking the register with the lowest spill weight. Consider (up to) 2 additional registers with spill weights that are close to the lowest spill weight. The one with fewest defs and uses that conflicts with the current interval (weighted by loop depth) is the spill candidate.
...
This is not always a win, but there are much more wins than loses and wins tend to be more noticeable.
llvm-svn: 52554
2008-06-20 21:45:16 +00:00
f362183c24
Share some code that is common between integer and
...
float expansion (and sometimes vector splitting too).
llvm-svn: 52548
2008-06-20 18:40:50 +00:00
49295b48eb
Rename the operation of turning a float type into an
...
integer of the same type. Before it was "promotion",
but this is confusing because it is quite different
to promotion of integers. Call it "softening" instead,
inspired by "soft float".
llvm-svn: 52546
2008-06-20 17:49:55 +00:00
3792c470d5
Clean up some uses of std::distance, now that we have allnodes_size.
...
llvm-svn: 52545
2008-06-20 17:15:19 +00:00
3ada1e118b
Clean up a use of std::distance.
...
llvm-svn: 52544
2008-06-20 17:11:32 +00:00
a5dd67f002
Tidy up some commments and use the getAggregateOperand and
...
getInsertedValueOperand accessors. Thanks Matthijs!
llvm-svn: 52543
2008-06-20 16:41:17 +00:00
b5210efb31
Fix the conditions under which SCCP should examine insertvalue
...
instructions. Thanks to Matthijs Kooijman for pointing this out!
llvm-svn: 52542
2008-06-20 16:39:44 +00:00
c456f9dfc6
80 column and trailing whitespace fixes.
...
llvm-svn: 52539
2008-06-20 15:34:07 +00:00
0c50b953c5
Don't let DeadArgumentElimination attempt to update callers when the return
...
type wasn't changed.
llvm-svn: 52538
2008-06-20 15:25:43 +00:00
9dc59b7666
Don't let DeadArgElimination change the return type ({} into void and {T}
...
into T) when no return values are actually dead.
llvm-svn: 52537
2008-06-20 15:16:45 +00:00
013b6a9a42
Explicitely track if any arguments or return values were removed in
...
DeadArgumentElimination and assert that the function type does not change if
nothing was changed. This should catch subtle changes in function type that are
not intended.
llvm-svn: 52536
2008-06-20 14:28:52 +00:00
e91aed6ce1
Remove debug output.
...
llvm-svn: 52535
2008-06-20 14:03:35 +00:00
8d32dee428
Recommit r52459, rewriting of the dead argument elimination pass.
...
This is a fixed version that no longer uses multimap::equal_range, which
resulted in a pointer invalidation problem.
Also, DAE::InspectedFunctions was not really necessary, so it got removed.
Lastly, this version no longer applies the extra arg hack on functions who did
not have any arguments to start with.
llvm-svn: 52532
2008-06-20 09:36:16 +00:00
78fbcafb53
Really disable PRE.
...
llvm-svn: 52531
2008-06-20 08:59:13 +00:00
d53bd2da98
Fix an error handling redefinition of linkonce functions where the
...
types differ. Patch by Nathan Keynes!
llvm-svn: 52527
2008-06-20 05:29:39 +00:00
f3ecd2d290
Fix PR2471, which is a bug involving an invalid promotion from a conditional load.
...
llvm-svn: 52525
2008-06-20 05:12:56 +00:00
9f337549a7
Add C binding for ExecutionEngine::addGlobalMapping.
...
llvm-svn: 52523
2008-06-20 02:16:11 +00:00
593a010c56
Teach ReturnInst lowering about aggregate return values.
...
llvm-svn: 52522
2008-06-20 01:29:26 +00:00
1b3ea963f7
Change around the data structures used to store availability sets, resulting in a GVN+PRE that is faster that GVN alone was before.
...
llvm-svn: 52521
2008-06-20 01:15:47 +00:00
041f9d03ff
Teach SCCP about insertvalue and extractvalue, and about
...
propagating constants across aggregate return values when
insertvalue and extractvalue are used.
llvm-svn: 52520
2008-06-20 01:15:44 +00:00
3b18fd7b02
Teach InlineFunction how to differentiate between multiple-value
...
return statements and aggregate returns so that it handles both
correctly.
llvm-svn: 52519
2008-06-20 01:03:44 +00:00
9598f930f3
Disable PRE for now. It seems to be breaking llvm-gcc bootstrapping.
...
llvm-svn: 52518
2008-06-20 01:01:07 +00:00
44b2c57e2b
Fix the index calculations for the extractvalue lowering code.
...
llvm-svn: 52517
2008-06-20 00:54:19 +00:00
c7a32fc8ca
Simplify the ComputeLinearIndex logic and fix a few bugs.
...
llvm-svn: 52516
2008-06-20 00:53:00 +00:00
d87e813e41
Simplify this code. Thanks Chris!
...
llvm-svn: 52514
2008-06-20 00:47:44 +00:00
be0429c558
ISD::UNDEF should be expanded recursively / iteratively.
...
llvm-svn: 52508
2008-06-19 22:01:11 +00:00
e780d66657
Add a hidden -disable-pre flag for testing purposes. This should be removed
...
once benchmarking is completed.
llvm-svn: 52506
2008-06-19 19:57:25 +00:00
fdf9f168b5
PRE requires that critical edges be split.
...
llvm-svn: 52505
2008-06-19 19:54:19 +00:00
cd6fb1d0a8
Remove dead code causing a warning.
...
llvm-svn: 52502
2008-06-19 18:00:44 +00:00
d6530872f3
Use the common API for adding instructions to basic blocks instead of
...
using BasicBlock::getInstList.
llvm-svn: 52500
2008-06-19 17:53:32 +00:00
ff21db851d
Be sure to remove values from the value numbering table after we delete them.
...
This fixes a failure on povray.
llvm-svn: 52499
2008-06-19 17:53:26 +00:00
ed2250990a
Use Instruction::moveBefore instead of manipulating the instruction list
...
directly.
llvm-svn: 52498
2008-06-19 17:47:47 +00:00
9eea470fcf
Avoid using BasicBlock::getInstList directly in a few places.
...
llvm-svn: 52497
2008-06-19 17:37:25 +00:00
45d3701fce
Revert support for insertvalue and extractvalue instructions for the moment.
...
GVN expects that all inputs which to an instruction fall somewhere in the value
hierarchy, which isn't true for these.
llvm-svn: 52496
2008-06-19 17:25:39 +00:00
6f880690b8
Use the transferSuccessors helper function.
...
llvm-svn: 52495
2008-06-19 17:22:29 +00:00
68f539e807
Delete dead code.
...
llvm-svn: 52494
2008-06-19 17:18:39 +00:00
0c71732497
Use a CallSite to find the nth argument of a call/invoke instruction instead of
...
using getOperand() directly. This makes things work with invoke instructions as
well.
llvm-svn: 52489
2008-06-19 08:53:24 +00:00
db356eea26
Fix some warnings reported by gcc-4.3. Hopefully
...
this still compiles on windows - I can't test!
llvm-svn: 52488
2008-06-19 08:47:31 +00:00
849fa11f15
Missed a check.
...
llvm-svn: 52487
2008-06-19 06:17:19 +00:00
8d66e98c92
Fix a bug with <8 x i16> shuffle lowering on X86 where parts of the
...
shuffle could be skipped. The check is invalid because the loop index i
doesn't correspond to the element actually inserted. The correct check is
already done a few lines earlier, for whether the element is already in
the right spot, so this shouldn't have any effect on the codegen for
code that was already correct.
llvm-svn: 52486
2008-06-19 06:09:51 +00:00
3c4ccc830e
Revert my last patch, which was causing regression test failures.
...
llvm-svn: 52485
2008-06-19 05:29:34 +00:00
0c8ef553f5
Coalesce copy from one register class to a sub register class. e.g. X86::MOV16to16_.
...
llvm-svn: 52480
2008-06-19 01:39:21 +00:00
18e46d455b
Cosmetic changes.
...
llvm-svn: 52479
2008-06-19 01:21:26 +00:00
2dbba985d5
Unneeded include's.
...
llvm-svn: 52478
2008-06-19 01:21:02 +00:00
55bc848640
Minor spiller tweak to unfavor reload into load/store instructions.
...
llvm-svn: 52477
2008-06-19 01:16:17 +00:00
80ef880b98
Insert empty slots into the instruction numbering in live intervals, so that we can more easily
...
add new instructions.
llvm-svn: 52475
2008-06-19 00:10:49 +00:00
3ea800fbad
Add support for extractvalue and insertvalue instructions in GVN.
...
llvm-svn: 52472
2008-06-18 21:59:00 +00:00
6a903bc601
Add local PRE to GVN. This only operates in cases where it would not increase code size, namely when the instantiated expression
...
would only need to be created in one predecessor.
llvm-svn: 52471
2008-06-18 21:41:49 +00:00
55a8524241
Fix the source line debug information for the Windows platform.
...
According to DWARF-2 specification, the line information is provided through an offset in the .debug_line section.
Replace the label reference that is used with a section offset.
llvm-svn: 52468
2008-06-18 19:27:37 +00:00
78119b4742
Fix the regressions on sext-misc.ll my patch yesterday caused.
...
llvm-svn: 52466
2008-06-18 18:11:55 +00:00
9094cc957e
Revert r52459, which was causing an infinite loop or massive slowdown on MultiSource/Applications/SPASS, and possibly others as well.
...
Please reapply once this is fixed.
llvm-svn: 52465
2008-06-18 17:32:16 +00:00
095ca74a7f
Move SCEVExpander::visitAddExpr out-of-line.
...
llvm-svn: 52464
2008-06-18 16:37:11 +00:00
be928e3b21
Move LSR's private isZero function to a public SCEV member
...
function, and make use of it in several places.
llvm-svn: 52463
2008-06-18 16:23:07 +00:00
964557fdf5
Rewrite the DeadArgumentElimination pass, to use a more explicit tracking of
...
dependencies between return values and/or arguments. Also make the handling of
arguments and return values the same.
The pass now looks properly inside returned structs, but only at the first
level (ie, not inside nested structs).
Also add a testcase for testing various variations of (multiple) dead rerturn
values.
llvm-svn: 52459
2008-06-18 11:12:53 +00:00
fd17357643
Reapply r52397 (make IPConstProp promote returned arguments), but fixed this
...
time. Sorry for the trouble!
This time, also add a testcase, which I should have done in the first place...
llvm-svn: 52455
2008-06-18 08:30:37 +00:00
1d260dfa3b
XOR32rr, etc. are not AsCheapAsMove, but MOV32ri, etc. are.
...
llvm-svn: 52454
2008-06-18 08:13:07 +00:00
97034598b1
Reapply r52396, it was unrelated to the breakage (that was caused by r52397, my
...
commit after this).
llvm-svn: 52453
2008-06-18 08:09:27 +00:00
c5618ebdb9
Complete support for two-address pass rematerialization. Now *almost* always a win.
...
llvm-svn: 52452
2008-06-18 07:49:14 +00:00
50d59478da
Cosmetic.
...
llvm-svn: 52450
2008-06-18 07:47:28 +00:00
ef36dcd10b
implement some simple bswap optimizations, rdar://5992453
...
llvm-svn: 52442
2008-06-18 04:33:20 +00:00
b5ee8b3e89
make truncate/sext elimination capable of changing phi's. This
...
implements rdar://6013816 and the testcase in Transforms/InstCombine/sext-misc.ll.
llvm-svn: 52440
2008-06-18 04:00:49 +00:00
f6a1466829
Unbreak DECLARE isel in pic mode.
...
llvm-svn: 52439
2008-06-18 02:48:27 +00:00
cd6b697945
Preserve dominance frontier while trivially unswitching loop.
...
llvm-svn: 52438
2008-06-18 02:16:38 +00:00
7cc14c55da
Auto-upgrade code for multiple-value return statements. This code
...
isn't actually called yet.
llvm-svn: 52435
2008-06-17 23:38:43 +00:00
d8ca05f4ee
In InsertValueInst's copy ctor, actually copy the operands.
...
llvm-svn: 52434
2008-06-17 23:25:49 +00:00
75f3732b23
We don't want to find dependencies within the same block in this case. It leads to incorrect results because
...
we're detecting something at or after the call we're querying on.
llvm-svn: 52433
2008-06-17 22:27:06 +00:00
4a3125ba29
Implement the ExtractValueInst::getIndexedType that accepts one
...
index value.
llvm-svn: 52432
2008-06-17 21:07:55 +00:00
f873ed1b10
Live-through live interval is [mbb start, mbb end+1].
...
llvm-svn: 52431
2008-06-17 20:13:36 +00:00
1eb69314fa
When extending a liveinterval by commuting, don't throw away the live ranges that are not affected.
...
llvm-svn: 52430
2008-06-17 20:11:16 +00:00
90ada832be
Consistently set "Buckets[NumBuckets] = reinterpret_cast<void*>(-1)" throughout FoldingSet.cpp.
...
llvm-svn: 52425
2008-06-17 19:12:43 +00:00
2505e0c36b
Add an insertBefore method for attaching previously unattached instructions,
...
such as those created by clone(), to a basic block.
llvm-svn: 52424
2008-06-17 18:29:27 +00:00
5e4188f1ac
It's not safe to remove SUBREG_TO_REG that looks like identity copies, e.g. movl %eax, %eax on x86-64 actually does a zero-extend.
...
llvm-svn: 52421
2008-06-17 17:59:16 +00:00
f51ed6a161
Add one more 'magic' define :)
...
llvm-svn: 52420
2008-06-17 17:57:43 +00:00
8e5d9214ba
Unbreak non-PPC builds
...
llvm-svn: 52419
2008-06-17 17:38:31 +00:00
7d7dcd52db
Provide generic hooks for icache invalidation. Add PPC implementation.
...
Patch by Gary Benson!
llvm-svn: 52418
2008-06-17 17:30:05 +00:00
aecc3750d1
revert recent patch which is causing widespread breakage.
...
llvm-svn: 52415
2008-06-17 17:06:43 +00:00
84a9055e27
Don't forget to initialize SymbolSearchingDisabled.
...
llvm-svn: 52414
2008-06-17 16:49:02 +00:00
4b50fde2c4
Fix typo that changed the logic to something wrong.
...
Spotted by Nick Lewycky.
llvm-svn: 52411
2008-06-17 15:55:30 +00:00
4c69995fb2
Split type expansion into ExpandInteger and ExpandFloat
...
rather than bundling them together. Rename FloatToInt
to PromoteFloat (better, if not perfect). Reorganize
files by types rather than by operations.
llvm-svn: 52408
2008-06-17 14:27:01 +00:00
332836d68d
Learn IPConstProp to propagate arguments that are directly returned. Strictly
...
speaking these are not constant values. However, when a function always returns
one of its arguments, then from the point of view of each caller the return
value is constant (or at least a known value) and can be replaced.
llvm-svn: 52397
2008-06-17 12:20:24 +00:00
f03c1ae407
Learn IPConstProp to look at individual return values and propagate them
...
individually.
Also learn IPConstProp how returning first class aggregates work, in addition
to old style multiple return instructions.
Modify the return-constants testscase to confirm this behaviour.
llvm-svn: 52396
2008-06-17 12:02:52 +00:00
8369c67cbd
Use a SmallVector instead of an array, since auto_ptr doesn't handle arrays
...
properly.
llvm-svn: 52390
2008-06-17 08:24:37 +00:00
1b08c4a709
add a new -enable-value-prop flag for llcbeta, that enables propagation
...
of value info (sign/zero ext info) from one MBB to another. This doesn't
handle much right now because of two limitations:
1) only handles zext/sext, not random bit propagation (no assert exists
for this)
2) doesn't handle phis.
llvm-svn: 52383
2008-06-17 06:09:18 +00:00
0ae829e5d1
Fix spelling.
...
llvm-svn: 52381
2008-06-17 03:24:13 +00:00
e47ca0940f
Rather than avoiding to wrap ISD::DECLARE GV operand in X86ISD::Wrapper, simply handle it at dagisel time with x86 specific isel code.
...
llvm-svn: 52377
2008-06-17 02:01:22 +00:00
56cdea6b3e
Add a missing ~ (dtor became ctor) which caused crashes on a bunch of stuff.
...
llvm-svn: 52374
2008-06-16 23:06:51 +00:00
1cde1f8d5e
Do not issue identity copies.
...
llvm-svn: 52373
2008-06-16 22:52:53 +00:00
ab0dccba6b
Refine the change in r52258 for avoiding use-before-def conditions
...
when changing the stride of a comparison so that it's slightly
more precise, by having it scan the instruction list to determine
if there is a use of the condition after the point where the
condition will be inserted.
llvm-svn: 52371
2008-06-16 22:34:15 +00:00
caefb0b5c7
switch TypeHasCycleThroughItself from using an std::set to using a SmallPtrSet,
...
this speeds up the linking testcase in PR1860 by 44% (.379 -> 0.263)
llvm-svn: 52365
2008-06-16 21:20:58 +00:00
9be15893c5
stop making PATypeHolder's so crazily.
...
llvm-svn: 52364
2008-06-16 21:17:12 +00:00
a5e30076a0
Horizontal-add instructions are not commutative.
...
llvm-svn: 52363
2008-06-16 21:16:24 +00:00
319e9a4f63
Switch over to SetVector to ensure same order of iterations do not vary across runs.
...
llvm-svn: 52361
2008-06-16 21:08:17 +00:00
eee6f995dd
use a real associative container for type association instead of using
...
a vector with a linear search. This speeds up the linking testcase
in PR1860 from 0.965s to 0.385s on my system.
llvm-svn: 52357
2008-06-16 21:00:18 +00:00
b90be27f8c
mpsadbw is commutable.
...
llvm-svn: 52352
2008-06-16 20:25:59 +00:00
fe677e9570
bail out sooner if we have two concrete but different types.
...
llvm-svn: 52351
2008-06-16 20:03:01 +00:00
85b66d18b9
simplify some code.
...
llvm-svn: 52350
2008-06-16 19:55:40 +00:00
8cb74995cc
Apply a patch from Nathan Keynes, which speeds up llvm-link on
...
the testcases in PR1860 from taking more than 1 hour (when I killed it)
to taking 1s.
llvm-svn: 52347
2008-06-16 19:48:08 +00:00
476e91ab75
Remove special case handling of empty MBBs now that we assign indices to them.
...
llvm-svn: 52345
2008-06-16 19:32:40 +00:00
9995302b02
handle vectors. Any integers that got here would necessarily be different already.
...
llvm-svn: 52341
2008-06-16 18:27:53 +00:00
8aa89e4181
Simplify ResolveTypes by pulling the null case out into the one
...
client that cares and simplifying its control flow.
Remove the DestST argument to ResolveTypes and RecursiveResolveTypes*
which are dead now.
llvm-svn: 52340
2008-06-16 18:19:05 +00:00
a72cdcd1a2
Iterating over SmallPtrSet is not deterministic.
...
llvm-svn: 52339
2008-06-16 18:17:09 +00:00
e9bb8552af
simplify RecursiveResolveTypes and ResolveTypes by pulling the naming out of
...
ResolveTypes into the one place that needs it.
llvm-svn: 52338
2008-06-16 18:11:40 +00:00
86d4f3a2a9
Add a new flag that disables symbol lookup with dlsym when set. This allows
...
a JIT client to completely control symbol lookup with the LazyFunctionCreator
interface.
llvm-svn: 52335
2008-06-16 17:44:14 +00:00
8b69e8a647
Add support for icache invalidation on non-darwin ppc systems.
...
Patch by Gary Benson!
llvm-svn: 52332
2008-06-16 17:04:06 +00:00
773b2d3ac3
Re-enable empty block indexing by default, since it doesn't seem to have any
...
impact on code quality or compile time.
llvm-svn: 52329
2008-06-16 16:58:24 +00:00
fa4d0b883a
Make BuildSubAggregate use FindInsertedElement again to prevent it from
...
inserting extractvalues. In particular, this prevents the insertion of
extractvalues that can't be folded away later. Also add an example of when this
stuff is needed.
llvm-svn: 52328
2008-06-16 14:13:46 +00:00
69801d4fd1
Make the InsertBefore argument to FindInsertedValue optional, so you can find an inserted value without modifying the code.
...
llvm-svn: 52319
2008-06-16 13:28:31 +00:00
86cda9e050
Pass around Instruction* instead of Instruction& in FindInsertedValue and friends.
...
llvm-svn: 52318
2008-06-16 13:13:08 +00:00
Dale Johannesen