65b257c9d2
Use DominatorTree::properlyDominates instead of dominates with an
...
explicit inequality check.
llvm-svn: 109401
2010-07-26 17:37:36 +00:00
31f73ef210
A block dominates itself, by definition.
...
llvm-svn: 109400
2010-07-26 17:35:32 +00:00
7bc0443f2b
Revert this because we can't clone cyclic MDNodes which are creating during a
...
build of llvm-gcc.
llvm-svn: 109355
2010-07-24 20:54:02 +00:00
14b69d59dd
Whether function-local or not, a MDNode may reference a Function in which case
...
it needs to be mapped to refer to the function in the new module, not the old
one. Fixes PR7700.
llvm-svn: 109353
2010-07-24 19:43:25 +00:00
5fa3813329
Speculatively revert 109117
...
llvm-svn: 109132
2010-07-22 18:44:00 +00:00
59f9970ba5
keep in 80 cols
...
llvm-svn: 109122
2010-07-22 17:18:03 +00:00
fac440cfb6
Map MDNode correctly.
...
A non function local MDNode can have an operand which is cloned by MapValue().
llvm-svn: 109117
2010-07-22 16:35:00 +00:00
dde79d8f1a
mass elimination of reliance on automatic iterator dereferencing
...
llvm-svn: 109103
2010-07-22 13:36:47 +00:00
84012a93ef
simplify
...
llvm-svn: 109101
2010-07-22 13:07:39 +00:00
b8686360a1
do not access arguments via low-level interface, do not multiply dereference use_iterators
...
llvm-svn: 109100
2010-07-22 13:04:32 +00:00
10bb1f5462
pass dereferenced iterator to dyn_cast
...
llvm-svn: 109099
2010-07-22 11:48:35 +00:00
36f25dfd33
pass dereferenced iterator to dyn_cast
...
llvm-svn: 109098
2010-07-22 11:43:44 +00:00
3e44ea1917
undo 80 column trespassing I caused
...
llvm-svn: 109092
2010-07-22 10:37:47 +00:00
2637cc1a38
Make NamedMDNode not be a subclass of Value, and simplify the interface
...
for creating and populating NamedMDNodes.
llvm-svn: 109061
2010-07-21 23:38:33 +00:00
a57b97e7e7
Fix batch of converting RegisterPass<> to INTIALIZE_PASS().
...
llvm-svn: 109045
2010-07-21 22:09:45 +00:00
afbe4a7a10
Make this code a little more readable.
...
llvm-svn: 108968
2010-07-20 23:49:44 +00:00
7373bd9973
Use DebugLocs instead of MDNodes.
...
llvm-svn: 108967
2010-07-20 23:49:05 +00:00
b22dd85bb3
Fix a typo.
...
llvm-svn: 108962
2010-07-20 23:10:36 +00:00
5c2e65b7bf
Don't look up the "dbg" metadata kind by name.
...
llvm-svn: 108961
2010-07-20 23:09:34 +00:00
d2c7e52d05
Use getDebugLoc and setDebugLoc instead of getDbgMetadata and setDbgMetadata,
...
avoiding MDNode overhead.
llvm-svn: 108909
2010-07-20 20:09:07 +00:00
12725c7d46
Remember that the induction variable is always a PHINode and
...
use getIncomingValueForBlock instead of
LoopInfo::getCanonicalInductionVariableIncrement.
llvm-svn: 108865
2010-07-20 17:18:52 +00:00
84774eda4b
Tweak per Chris' comments.
...
llvm-svn: 108736
2010-07-19 19:23:32 +00:00
32a58342ed
Reimplement r108639 in InstCombine rather than DAGCombine.
...
llvm-svn: 108687
2010-07-19 08:09:34 +00:00
7d2818b073
Another attempt at getting the clang self-host to like my instcombine patch.
...
llvm-svn: 108614
2010-07-17 06:56:35 +00:00
27e997a168
eliminate unlockedRefineAbstractTypeTo, types are all per-llvmcontext,
...
so there is no locking involved in type refinement.
llvm-svn: 108553
2010-07-16 20:50:13 +00:00
efd7f9c360
Reorder the contents of various getAnalysisUsage functions, eliminating
...
a redundant loopsimplify run from the default -O2 sequence.
llvm-svn: 108539
2010-07-16 17:58:45 +00:00
8a39c807e2
Remove the rest of my instcombine changes. Back to the drawing board on this one.
...
llvm-svn: 108530
2010-07-16 16:39:00 +00:00
6d673953e3
eliminate CallInst::ArgOffset
...
llvm-svn: 108522
2010-07-16 09:38:02 +00:00
375efe3157
Arrays and vectors with different numbers of elements are not equivalent.
...
llvm-svn: 108517
2010-07-16 06:31:12 +00:00
15a81cddb4
Also revert 108422, it's causing some test failures.
...
Working on testcases for Owen.
llvm-svn: 108494
2010-07-16 01:36:12 +00:00
1415208292
Don't merge uses when they are targetting fixup sites with
...
different widths. In a use with a narrower fixup, formulae
may be wider than the fixup, in which case the high bits
aren't necessarily meaningful, so it isn't safe to reuse
them for uses with wider fixups.
This fixes PR7618, though the testcase is too large for a
reasonable regression test, since it heavily dependes on
hitting LSR's heuristics in a certain way.
llvm-svn: 108455
2010-07-15 20:24:58 +00:00
a1501b9c50
Use dbgs() instead of errs() in a DEBUG.
...
llvm-svn: 108453
2010-07-15 20:12:42 +00:00
eaf64d5c1e
Speculatively revert r108429 to fix the clang self-host.
...
llvm-svn: 108436
2010-07-15 18:18:57 +00:00
eb08d01061
Per Chris' suggestion, get rid of the select canonicalization and just add
...
the corresponding or-icmp-and pattern. This has the added benefit of doing
the matching earlier, and thus being less susceptible to being confused by
earlier transforms.
llvm-svn: 108429
2010-07-15 17:24:23 +00:00
13700ebb02
Remove unneeded check, and correct style.
...
llvm-svn: 108427
2010-07-15 16:38:22 +00:00
4afd412d6b
Watch out for a constant offset cancelling out a base register, forming
...
a zero. This situation arrises in Fortran code with induction variables
that start at 1 instead of 0. This fixes PR7651.
llvm-svn: 108424
2010-07-15 15:14:45 +00:00
7151dfd48a
Reapply r108378, with bugfixes, testcase, and improved comment formatting.
...
This now passes LIT, nighty test, and llvm-gcc bootstrap on my machine.
llvm-svn: 108422
2010-07-15 15:00:23 +00:00
485ce5a49c
This is a full sentence.
...
llvm-svn: 108418
2010-07-15 06:51:22 +00:00
e6f3287cbb
Disable aliases on all platforms.
...
llvm-svn: 108417
2010-07-15 06:48:56 +00:00
e41ab07c61
make various clients of ReplaceAndSimplifyAllUses tolerate
...
it *changing* the things it replaces, not just causing them
to drop to null. There is no functionality change yet, but
this is required for a subsequent patch.
llvm-svn: 108414
2010-07-15 06:06:04 +00:00
a8b4e3732b
Speculatively revert r108378; may be causing bootstrap failures.
...
llvm-svn: 108389
2010-07-15 00:33:00 +00:00
37d91d84af
Add instcombine transforms to optimize tests of multiple bits of the same value into a single larger comparison.
...
llvm-svn: 108378
2010-07-14 23:33:51 +00:00
2cfe91379b
Extend SimplifyCFG's common-destination folding heuristic to allow a single
...
"bonus" instruction to be speculatively executed. Add a heuristic to
ensure we're not tripping up out-of-order execution by checking that this bonus
instruction only uses values that were already guaranteed to be available.
This allows us to eliminate the short circuit in (x&1)&&(x&2).
llvm-svn: 108351
2010-07-14 19:52:16 +00:00
ec0e7b1643
revert r108320, I see the failures now...
...
llvm-svn: 108322
2010-07-14 06:16:35 +00:00
658680b2f5
reapply benjamin's instcombine patch, I don't see anything wrong with it and can't repro any problems with a manual self-host.
...
llvm-svn: 108320
2010-07-14 05:59:13 +00:00
ea282034b6
Grammar.
...
llvm-svn: 108252
2010-07-13 18:27:13 +00:00
f88a284579
Handle the case of a tail recursion in which the tail call is followed
...
by a return that returns a constant, while elsewhere in the function
another return instruction returns a different constant. This is a
special case of accumulator recursion, so just generalize the existing
logic a bit.
llvm-svn: 108241
2010-07-13 15:41:41 +00:00
8f36402ac2
Nope, still breaks the release selfhost bots :(
...
llvm-svn: 108153
2010-07-12 16:38:48 +00:00
07b695e052
Reapply the "or" half of r108136, which seems to be less problematic.
...
llvm-svn: 108152
2010-07-12 16:15:48 +00:00
1b787df129
cache result of operator*
...
llvm-svn: 108150
2010-07-12 15:48:26 +00:00
c719e8ae9e
Revert r108141 again, sigh.
...
llvm-svn: 108148
2010-07-12 14:42:04 +00:00
96fedcb136
cache result of operator*
...
llvm-svn: 108147
2010-07-12 14:15:58 +00:00
f9c38b5a45
cache result of operator*
...
llvm-svn: 108146
2010-07-12 14:15:10 +00:00
88dd73b75e
cache result of operator*
...
llvm-svn: 108145
2010-07-12 14:14:03 +00:00
a75ed761a9
cache result of operator*
...
llvm-svn: 108144
2010-07-12 14:13:15 +00:00
15445db11b
cache results of operator*
...
llvm-svn: 108143
2010-07-12 14:12:11 +00:00
a5fa885d47
cache results of operator*
...
llvm-svn: 108142
2010-07-12 14:10:24 +00:00
f578c36035
Reapply 108136 with an ugly pasto fixed.
...
llvm-svn: 108141
2010-07-12 13:44:00 +00:00
11743249e6
Move optimization to avoid redundant matching.
...
llvm-svn: 108140
2010-07-12 13:34:22 +00:00
9675e759cf
Revert r108136 until I figure out why it broke selfhost.
...
llvm-svn: 108139
2010-07-12 12:35:49 +00:00
782f62412f
cache dereferenced iterators
...
llvm-svn: 108138
2010-07-12 12:03:02 +00:00
433b975fe2
recommit r108131 (hich has been backed out in r108135) with a fix
...
llvm-svn: 108137
2010-07-12 12:02:10 +00:00
35473faa50
instcombine: fold (x & y) | (~x & z) and (x & y) ^ (~x & z) into ((y ^ z) & x) ^ z which is one instruction shorter. (PR6773)
...
before:
%and = and i32 %y, %x
%neg = xor i32 %x, -1
%and4 = and i32 %z, %neg
%xor = xor i32 %and4, %and
after:
%xor1 = xor i32 %z, %y
%and2 = and i32 %xor1, %x
%xor = xor i32 %and2, %z
llvm-svn: 108136
2010-07-12 11:54:45 +00:00
f9610827ce
back out r108131 (of TailDuplication.cpp) for now, it causes a buildbot failure
...
llvm-svn: 108135
2010-07-12 11:32:39 +00:00
6143704ac5
cache dereferenced iterators
...
llvm-svn: 108134
2010-07-12 11:19:24 +00:00
8629f12bb8
cache dereferenced iterators
...
llvm-svn: 108133
2010-07-12 10:59:23 +00:00
d993402df3
cache dereferenced iterators
...
llvm-svn: 108132
2010-07-12 10:49:54 +00:00
2a464d7308
cache dereferenced iterators
...
llvm-svn: 108131
2010-07-12 10:36:48 +00:00
41b4a6b36a
Convert some tab stops into spaces.
...
llvm-svn: 108130
2010-07-12 08:16:59 +00:00
601e390a3b
make the prototypes for CreateMalloc and CreateFree more consistent. Patch
...
by Hans Vandierendonck from PR7605
llvm-svn: 108116
2010-07-12 00:57:28 +00:00
bbc25ff5cc
if jump threading is able to infer interesting values on both
...
the LHS and RHS of an and/or instruction, don't multiply add
known predecessor values. This fixes the crash on testcase
from PR7498
llvm-svn: 108114
2010-07-12 00:47:34 +00:00
82b21c086e
The accumulator tail recursion transform claims to work for any associative
...
operation, but the way it's implemented requires the operation to also be
commutative. So add a check for commutativity (and tweak the corresponding
comments). This makes no difference in practice since every associative
LLVM instruction is also commutative! Here's an example to show the need
for commutativity: the accum_recursion.ll testcase calculates the factorial
function. Before the transformation the result of a call is
((((1*1)*2)*3)...)*x
while afterwards it is
(((1*x)*(x-1))...*2)*1
which clearly requires both associativity and commutativity of * to be equal
to the original.
llvm-svn: 108056
2010-07-10 20:31:42 +00:00
9d5ae03404
cache result of operator*
...
llvm-svn: 107990
2010-07-09 16:51:20 +00:00
fd8e7d4a0f
cache result of operator*
...
llvm-svn: 107984
2010-07-09 16:31:08 +00:00
e7650c7c29
cache result of operator*
...
llvm-svn: 107983
2010-07-09 16:26:41 +00:00
04af1e4f65
cache result of operator*
...
llvm-svn: 107981
2010-07-09 16:17:52 +00:00
e82532a1c5
cache result of operator*
...
llvm-svn: 107976
2010-07-09 15:40:10 +00:00
6d8870fc35
cache result of operator*
...
llvm-svn: 107975
2010-07-09 15:25:42 +00:00
329c4d8ed9
cache result of operator*
...
llvm-svn: 107974
2010-07-09 15:25:09 +00:00
0028cc6730
cache result of operator*
...
llvm-svn: 107972
2010-07-09 15:01:36 +00:00
d323f5e161
cache result of operator* (found by inspection)
...
llvm-svn: 107971
2010-07-09 14:48:08 +00:00
b0d56ffc85
cache result of operator*
...
llvm-svn: 107969
2010-07-09 14:36:49 +00:00
4247949ce9
cache result of operator*
...
llvm-svn: 107968
2010-07-09 14:29:14 +00:00
a02f232c1b
cache result of operator*
...
llvm-svn: 107966
2010-07-09 14:18:23 +00:00
f0821f39ee
cache operator*'s result (in multiple functions)
...
llvm-svn: 107965
2010-07-09 14:02:13 +00:00
60a346d0f1
do not repeatedly dereference use_iterator
...
llvm-svn: 107962
2010-07-09 12:23:50 +00:00
2321e6a4d4
Teach instcombine to transform
...
(X >s -1) ? C1 : C2 and (X <s 0) ? C2 : C1
into ((X >>s 31) & (C2 - C1)) + C1, avoiding the conditional.
This optimization could be extended to take non-const C1 and C2 but we better
stay conservative to avoid code size bloat for now.
for
int sel(int n) {
return n >= 0 ? 60 : 100;
}
we now generate
sarl $31, %edi
andl $40, %edi
leal 60(%rdi), %eax
instead of
testl %edi, %edi
movl $60, %ecx
movl $100, %eax
cmovnsl %ecx, %eax
llvm-svn: 107866
2010-07-08 11:39:10 +00:00
efa3c824cc
Fix the second half of PR7437: scalarrepl wasn't preserving
...
address spaces when SRoA'ing memcpy's.
llvm-svn: 107846
2010-07-08 00:27:05 +00:00
408bb192de
Rename "Release" builds as "Release+Asserts"; rename "Release-Asserts"
...
builds to "Release". The default build is unchanged (optimization on,
assertions on), however it is now called Release+Asserts. The intent
is that future LLVM releases released via llvm.org will be Release builds
in the new sense, i.e. will have assertions disabled (currently they have
assertions enabled, for a more than 20% slowdown). This will bring them
in line with MacOS releases, which ship with assertions disabled. It also
means that "Release" now means the same things in make and cmake builds:
cmake already disables assertions for "Release" builds AFAICS.
llvm-svn: 107758
2010-07-07 07:48:00 +00:00
dace239949
Detabify this file.
...
llvm-svn: 107637
2010-07-06 03:53:43 +00:00
cefe3831b7
MDString is already checked earlier.
...
llvm-svn: 107516
2010-07-02 21:13:23 +00:00
832282e061
Don't claim to preserve AliasAnalysis. First, this is doesn't actually
...
have any effect, and second, deleting stores can potentially invalidate
an AliasAnalysis, and there's currently no notification for this.
llvm-svn: 107496
2010-07-02 18:43:05 +00:00
03bcd6ecc8
Implement the "linker_private_weak" linkage type. This will be used for
...
Objective-C metadata types which should be marked as "weak", but which the
linker will remove upon final linkage. However, this linkage isn't specific to
Objective-C.
For example, the "objc_msgSend_fixup_alloc" symbol is defined like this:
.globl l_objc_msgSend_fixup_alloc
.weak_definition l_objc_msgSend_fixup_alloc
.section __DATA, __objc_msgrefs, coalesced
.align 3
l_objc_msgSend_fixup_alloc:
.quad _objc_msgSend_fixup
.quad L_OBJC_METH_VAR_NAME_1
This is different from the "linker_private" linkage type, because it can't have
the metadata defined with ".weak_definition".
Currently only supported on Darwin platforms.
llvm-svn: 107433
2010-07-01 21:55:59 +00:00
2b434e12cd
Debugging infomration is encoded in llvm IR using metadata. This is designed
...
such a way that debug info for symbols preserved even if symbols are
optimized away by the optimizer.
Add new special pass to remove debug info for such symbols.
llvm-svn: 107416
2010-07-01 19:49:20 +00:00
b9e2e4b762
If a named mdnode is removed then mark module as changed.
...
llvm-svn: 107412
2010-07-01 18:27:46 +00:00
e74c78d539
lowerinvoke needs to handle aggregate function args like sjlj eh does.
...
llvm-svn: 107335
2010-06-30 22:22:59 +00:00
db735cbbab
Remove all debug info related named mdnodes.
...
llvm-svn: 107323
2010-06-30 21:29:00 +00:00
74470192d7
use ArgOperand API
...
llvm-svn: 107278
2010-06-30 12:42:43 +00:00
d50572802e
use ArgOperand API
...
llvm-svn: 107277
2010-06-30 12:40:35 +00:00
3abd881bea
use getArgOperand (corrected by CallInst::ArgOffset) instead of getOperand
...
llvm-svn: 107275
2010-06-30 12:38:26 +00:00
Dan Gohman