f0b5b67ba5
fit in 80 cols
...
llvm-svn: 111348
2010-08-18 03:13:35 +00:00
b45de95345
remove some dead code.
...
llvm-svn: 111344
2010-08-18 02:41:56 +00:00
941020ed72
Use the getUniquePredecessor() utility function, instead of doing
...
what it does manually.
llvm-svn: 111248
2010-08-17 17:07:02 +00:00
6e964c7fb4
Avoid #include <ScalarEvolution.h> in LoopSimplify.cpp, which doesn't
...
actually use ScalarEvolution.
llvm-svn: 111124
2010-08-16 14:44:03 +00:00
250b754428
Instead, teach SimplifyCFG to trim non-address-taken blocks from
...
indirectbr destination lists.
llvm-svn: 111122
2010-08-16 14:41:14 +00:00
aa445c0751
LoopSimplify shouldn't split loop backedges that use indirectbr. PR7867.
...
llvm-svn: 111061
2010-08-14 00:43:09 +00:00
4a63fad976
Teach SimplifyCFG how to simplify indirectbr instructions.
...
- Eliminate redundant successors.
- Convert an indirectbr with one successor into a direct branch.
Also, generalize SimplifyCFG to be able to be run on a function entry block.
It knows quite a few simplifications which are applicable to the entry
block, and it only needs a few checks to avoid trouble with the entry block.
llvm-svn: 111060
2010-08-14 00:29:42 +00:00
0f7892b8ae
Eliminate PromoteMemoryToRegisterID; just use addPreserved("mem2reg")
...
instead, as an example of what this looks like.
llvm-svn: 110478
2010-08-06 21:48:06 +00:00
a7aed18624
Reapply r110396, with fixes to appease the Linux buildbot gods.
...
llvm-svn: 110460
2010-08-06 18:33:48 +00:00
bda59bd247
Revert r110396 to fix buildbots.
...
llvm-svn: 110410
2010-08-06 00:23:35 +00:00
755aceb5d0
Don't use PassInfo* as a type identifier for passes. Instead, use the address of the static
...
ID member as the sole unique type identifier. Clean up APIs related to this change.
llvm-svn: 110396
2010-08-05 23:42:04 +00:00
f0084e1333
simplify
...
llvm-svn: 109589
2010-07-28 15:52:43 +00:00
7b0a5fd2a5
simplify: CallSite::get --> CallSite constructor
...
llvm-svn: 109506
2010-07-27 15:02:37 +00:00
0141c13b22
Remove LCSSA's bogus dependence on LoopSimplify and LoopSimplify's bogus
...
dependence on DominanceFrontier. Instead, add an explicit DominanceFrontier
pass in StandardPasses.h to ensure that it gets scheduled at the right
time.
Declare that loop unrolling preserves ScalarEvolution, and shuffle some
getAnalysisUsages.
This eliminates one LoopSimplify and one LCCSA run in the standard
compile opts sequence.
llvm-svn: 109413
2010-07-26 18:11:16 +00:00
a7908ae369
Preserve ScalarEvolution in the loop unroller.
...
llvm-svn: 109412
2010-07-26 18:02:06 +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
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
7373bd9973
Use DebugLocs instead of MDNodes.
...
llvm-svn: 108967
2010-07-20 23:49:05 +00:00
5c2e65b7bf
Don't look up the "dbg" metadata kind by name.
...
llvm-svn: 108961
2010-07-20 23:09:34 +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
6d673953e3
eliminate CallInst::ArgOffset
...
llvm-svn: 108522
2010-07-16 09:38:02 +00:00
13700ebb02
Remove unneeded check, and correct style.
...
llvm-svn: 108427
2010-07-15 16:38:22 +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
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
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
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
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
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
cefe3831b7
MDString is already checked earlier.
...
llvm-svn: 107516
2010-07-02 21:13:23 +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
e9acc46f65
use getArgOperand instead of getOperand
...
llvm-svn: 107269
2010-06-30 09:14:26 +00:00
ec60adf161
use CallInst::ArgOffset
...
llvm-svn: 107003
2010-06-28 12:30:07 +00:00
2de43a7c5c
use ArgOperand API and CallInst::ArgOffset
...
llvm-svn: 107002
2010-06-28 12:29:20 +00:00
ce97d55ad9
The hasMemory argument is irrelevant to how the argument
...
for an "i" constraint should get lowered; PR 6309. While
this argument was passed around a lot, this is the only
place it was used, so it goes away from a lot of other
places.
llvm-svn: 106893
2010-06-25 21:55:36 +00:00
e3ba486c9f
use ArgOperand API (one more hunk I could split)
...
llvm-svn: 106825
2010-06-25 07:58:41 +00:00
5f3e656a1b
use ArgOperand API (some hunks I could split)
...
llvm-svn: 106824
2010-06-25 07:57:14 +00:00
42f620cc55
use callsite to obtain all arguments
...
llvm-svn: 106728
2010-06-24 09:56:43 +00:00
0dc3c2d37e
Use ValueMap instead of DenseMap.
...
The ValueMapper used by various cloning utility maps MDNodes also.
llvm-svn: 106706
2010-06-24 00:33:28 +00:00
d8dedee96d
Use available typedef for " DenseMap<const Value*, Value*>".
...
llvm-svn: 106699
2010-06-24 00:00:42 +00:00
b8f11de105
Cosmetic change.
...
Do not use "ValueMap" as a name for a local variable or an argument.
llvm-svn: 106698
2010-06-23 23:55:51 +00:00
9ad629367d
Revert 106592 for now. It causes clang-selfhost build failure.
...
llvm-svn: 106598
2010-06-22 23:29:55 +00:00
87f75f75be
If a metadata operand is seeded in value map and the metadata should also be seeded in value map. This is not limited to function local metadata.
...
Failure to seed metdata in such cases causes troubles when in a cloned module, metadata from a new module refers to values in old module. Usually this results in mysterious bugpoint crashes. For example,
Checking to see if we can delete global inits: Unknown constant!
UNREACHABLE executed at /d/g/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp:904!
llvm-svn: 106592
2010-06-22 22:53:21 +00:00
e43c6487da
While cloning a module, clone metadata attached with instructions.
...
llvm-svn: 106591
2010-06-22 22:50:42 +00:00
e3fbbd19ed
Clone named metadata while cloning a module.
...
Reapply Bob's patch.
llvm-svn: 106560
2010-06-22 18:52:38 +00:00
d2d1ae105d
Use pre-increment instead of post-increment when the result is not used.
...
llvm-svn: 106542
2010-06-22 15:08:57 +00:00
f040dec68a
Revert 106528. It is causing self host failures.
...
llvm-svn: 106529
2010-06-22 06:14:09 +00:00
b195eb4acf
Do not rely on DenseMap slot which can be easily invalidated when DenseMap grows.
...
llvm-svn: 106528
2010-06-22 05:16:56 +00:00
6c1fc79cab
Revert my change to clone named metadata. Buildbots are complaining.
...
--- Reverse-merging r106508 into '.':
U lib/Transforms/Utils/CloneModule.cpp
llvm-svn: 106521
2010-06-22 02:08:51 +00:00
5f9575c1cd
Include named metadata when cloning a module.
...
llvm-svn: 106508
2010-06-22 00:11:03 +00:00
dd41bba517
Use A.append(...) instead of A.insert(A.end(), ...) when A is a
...
SmallVector, and other SmallVector simplifications.
llvm-svn: 106452
2010-06-21 19:47:52 +00:00
e94f1ded24
remove trailing whitespace
...
llvm-svn: 106164
2010-06-16 22:41:09 +00:00
1118860e3a
simplify-libcalls: fold strstr(a, b) == a -> strncmp(a, b, strlen(b)) == 0
...
llvm-svn: 106047
2010-06-15 21:34:25 +00:00
36da24b546
Copy location info for current function argument from dbg.declare if respective store instruction does not have any location info.
...
llvm-svn: 105490
2010-06-04 22:27:30 +00:00
5ba76b94f8
Remove unused code
...
llvm-svn: 105293
2010-06-01 21:56:30 +00:00
0e20dc5cd6
fix think-o
...
llvm-svn: 105291
2010-06-01 21:35:50 +00:00
b69c68742a
Simplify things a bit more. Fix prototype to use SmallVectorImpl and
...
change a few SmallVectors to vanilla C arrays.
llvm-svn: 105289
2010-06-01 21:06:46 +00:00
a37af16221
mirror of r105280 changes for LowerInvoke, which uses the same basic logic here
...
llvm-svn: 105281
2010-06-01 18:04:56 +00:00
7352167560
Use SmallVector instead of std::vector.
...
llvm-svn: 105279
2010-06-01 17:56:41 +00:00
4c904fa797
Fix PR7272: when inlining through a callsite with byval arguments,
...
the newly created allocas may be used by inlined calls, so these
need to have their tail call flags cleared. Fixes PR7272.
llvm-svn: 105255
2010-05-31 21:00:26 +00:00
aee2632be3
The memcpy intrinsic only takes i8* for %src and %dst, so cast them to that
...
first. Fixes PR7265.
llvm-svn: 105206
2010-05-31 06:16:35 +00:00
826bdf8c10
Move FindAvailableLoadedValue isSafeToLoadUnconditionally out of
...
lib/Transforms/Utils and into lib/Analysis so that Analysis passes
can use them.
llvm-svn: 104949
2010-05-28 16:19:17 +00:00
3e0fbafab2
Fix typo.
...
llvm-svn: 104914
2010-05-28 01:29:50 +00:00
e2099e8088
Fix typo.
...
llvm-svn: 104913
2010-05-28 01:17:51 +00:00
7a9dedf0ab
Do not drop location info for inlined function args.
...
llvm-svn: 104884
2010-05-27 20:25:04 +00:00
6739a89117
Fixes for Microsoft Visual Studio 2010, from Steven Watanabe!
...
llvm-svn: 103457
2010-05-11 06:17:44 +00:00
32cc43c242
Wrap const MDNode * inside DIDescriptor.
...
llvm-svn: 103295
2010-05-07 20:54:48 +00:00
4423abd734
Use overloaded operators instead of DIDescriptor::getNode()
...
llvm-svn: 103276
2010-05-07 18:19:32 +00:00
d1b38e317d
Combine the implementations of the core part of the SSAUpdater and
...
MachineSSAUpdater to avoid duplicating all the code.
llvm-svn: 103060
2010-05-04 23:18:19 +00:00
c2432b9d44
rename InlineInfo.DevirtualizedCalls -> InlinedCalls to
...
reflect that it includes all inlined calls now, not just
devirtualized ones.
llvm-svn: 102824
2010-05-01 01:26:13 +00:00
fc8d9ee6c3
Implement rdar://6295824 and PR6724 with two tiny changes
...
that can have a big effect :). The first is to enable the
iterative SCC passmanager juice that kicks in when the
scc passmgr detects that a function pass has devirtualized
a call. In this case, it will rerun all the passes it
manages on the SCC, up to the iteration count limit (4). This
is useful because a function pass may devirualize a call, and
we want the inliner to inline it, or pruneeh to infer stuff
about it, etc.
The second patch is to add *all* call sites to the
DevirtualizedCalls list the inliner uses. This list is
about to get renamed, but the jist of this is that the
inliner now reconsiders *all* inlined call sites as candidates
for further inlining. The intuition is this that in cases
like this:
f() { g(1); } g(int x) { h(x); }
We analyze this bottom up, and may decide that it isn't
profitable to inline H into G. Next step, we decide that it is
profitable to inline G into F, and do so, which means that F
now calls H. Even though the call from G -> H may not have been
profitable to inline, the call from F -> H may be (in this case
because a constant allows folding etc).
In my spot checks, this doesn't have a big impact on code. For
example, the LLC output for 252.eon grew from 0.02% (from
317252 to 317308) and 176.gcc actually shrunk by .3% (from 1525612
to 1520964 bytes). 252.eon never iterated in the SCC Passmgr,
176.gcc iterated at most 1 time.
llvm-svn: 102823
2010-05-01 01:15:56 +00:00
44a27efdf9
Fix a problem that lower invoke has with allocas (PR6694), and
...
add a version of createLowerInvokePass that allows the client
to specify whether it wants "expensive" or "cheap" lowering.
Patch by Alex Mac!
llvm-svn: 102402
2010-04-26 23:49:32 +00:00
c691de3b4e
switch InlineInfo.DevirtualizedCalls's list to be of WeakVH.
...
This fixes a bug where calls inlined into an invoke would get
changed into an invoke but the array would keep pointing to
the (now dead) call. The improved inliner behavior is still
disabled for now.
llvm-svn: 102196
2010-04-23 18:37:01 +00:00
2eee5d3467
The inliner was choosing to not consider call sites
...
that appear in the SCC as a result of inlining as candidates
for inlining. Change this so that it *does* consider call
sites that change from being indirect to being direct as a
result of inlining. This allows it to completely
"devirtualize" the testcase.
llvm-svn: 102146
2010-04-22 23:37:35 +00:00
4ba01ec869
refactor the interface to InlineFunction so that most of the in/out
...
arguments are handled with a new InlineFunctionInfo class. This
makes it easier to extend InlineFunction to return more info in the
future.
llvm-svn: 102137
2010-04-22 23:07:58 +00:00
016c00a311
when inlining something like this:
...
define void @f3(void (i8*)* %__f) ssp {
entry:
call void %__f(i8* undef)
unreachable
}
define void @f4(i8* %this) ssp align 2 {
entry:
call void @f3(void (i8*)* @f2) ssp
ret void
}
The inliner is turning the indirect call to %__f into a direct
call to F2. Make the call graph more precise when this happens.
The inliner doesn't revisit call sites introduced by inlining,
so there isn't an easy way to test for this, but a more precise
callgraph is a good thing.
llvm-svn: 102131
2010-04-22 21:31:00 +00:00
0a3b5b4e39
eliminate dead #include.
...
llvm-svn: 102119
2010-04-22 20:41:10 +00:00
4c7f50afb8
Fix a performance problem with the new SSAUpdater. This showed up in the
...
GCCAS time for MultiSource/Benchmarks/ASCI_Purple/SMG2000.
llvm-svn: 102009
2010-04-21 18:39:03 +00:00
2176643241
Rename ValueMapTy as ValueToValueMapTy to clearly indicate that this has no replationship with ADT/ValueMap.
...
llvm-svn: 101950
2010-04-20 22:24:18 +00:00
382b969647
There is no need to install ValueMapper.h header.
...
llvm-svn: 101949
2010-04-20 22:18:31 +00:00
ca51425d94
Re-commit my previous SSAUpdater changes. The previous version naively tried
...
to determine where to place PHIs by iteratively comparing reaching definitions
at each block. That was just plain wrong. This version now computes the
dominator tree within the subset of the CFG where PHIs may need to be placed,
and then places the PHIs in the iterated dominance frontier of each definition.
The rest of the patch is mostly the same, with a few more performance
improvements added in.
llvm-svn: 101612
2010-04-17 03:08:24 +00:00
7258dcd77f
Revert 101465, it broke internal OpenGL testing.
...
Probably the best way to know that all getOperand() calls have been handled
is to replace that API instead of updating.
llvm-svn: 101579
2010-04-16 23:37:20 +00:00
f375520f7b
reapply r101434
...
with a fix for self-hosting
rotate CallInst operands, i.e. move callee to the back
of the operand array
the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary
llvm-svn: 101465
2010-04-16 15:33:14 +00:00
403e9694f9
back out r101423 and r101397, they break llvm-gcc self-host on darwin10
...
llvm-svn: 101434
2010-04-16 01:16:20 +00:00
33ae80bff7
reapply r101364, which has been backed out in r101368
...
with a fix
rotate CallInst operands, i.e. move callee to the back
of the operand array
the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary
llvm-svn: 101397
2010-04-15 20:51:13 +00:00
9fd00c7d25
back out r101364, as it trips the linux nightlybot on some clang C++ tests
...
llvm-svn: 101368
2010-04-15 12:46:56 +00:00
aafd209632
rotate CallInst operands, i.e. move callee to the back
...
of the operand array
the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary
llvm-svn: 101364
2010-04-15 10:49:53 +00:00
4016dcd625
Actually... return after the check for invalid input.
...
llvm-svn: 101139
2010-04-13 16:41:29 +00:00
1f272f7fd8
Verify function prototypes before trying to optimize functions. We also
...
need TargetData, just return false if we don't have it.
Update testcases accordingly.
Fixes PR6807.
llvm-svn: 101011
2010-04-12 04:48:00 +00:00
ef60190a00
performance: cache result of looking up user
...
llvm-svn: 100862
2010-04-09 15:18:34 +00:00
e8b281c3c3
Add support for stpncpy_chk.
...
llvm-svn: 100710
2010-04-07 23:00:07 +00:00
2104b8d36e
rename llvm::llvm_report_error -> llvm::report_fatal_error
...
llvm-svn: 100709
2010-04-07 22:58:41 +00:00
ba930449a9
Code clean up.
...
llvm-svn: 100467
2010-04-05 21:16:25 +00:00
c576ee9040
Reapply address space patch after fixing an issue in MemCopyOptimizer.
...
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
llvm-svn: 100304
2010-04-04 03:10:48 +00:00
f1aa4743d9
Revert all my SSAUpdater patches. The PHI placement algorithm is not correct
...
(what was I thinking?) and there's also a problem with LCSSA. I'll try again
later with fixes.
--- Reverse-merging r100263 into '.':
U lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100177 into '.':
G lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100148 into '.':
G lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100147 into '.':
U include/llvm/Transforms/Utils/SSAUpdater.h
G lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100131 into '.':
G include/llvm/Transforms/Utils/SSAUpdater.h
G lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100130 into '.':
G lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100126 into '.':
G include/llvm/Transforms/Utils/SSAUpdater.h
G lib/Transforms/Utils/SSAUpdater.cpp
--- Reverse-merging r100050 into '.':
D test/Transforms/GVN/2010-03-31-RedundantPHIs.ll
--- Reverse-merging r100047 into '.':
G include/llvm/Transforms/Utils/SSAUpdater.h
G lib/Transforms/Utils/SSAUpdater.cpp
llvm-svn: 100264
2010-04-03 03:50:38 +00:00
25f1aefd5b
Add a DEBUG_TYPE for the SSAUpdater.
...
llvm-svn: 100263
2010-04-03 03:28:44 +00:00
999c1b927b
Revert r100191 since it breaks objc in clang
...
llvm-svn: 100199
2010-04-02 18:43:02 +00:00
a972ab8564
Reapply address space patch after fixing an issue in MemCopyOptimizer.
...
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
llvm-svn: 100191
2010-04-02 18:04:15 +00:00
3c54edf9b3
Recommit 100158 now that the buildbots are happy again.
...
llvm-svn: 100177
2010-04-02 05:09:46 +00:00
0389adcd73
Revert 100158 in case it is causing some of the buildbot problems.
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llvm-svn: 100164
2010-04-02 01:22:49 +00:00
9af4e118c6
Check for terminating conditions before adding PHIs to the worklists.
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This is more efficient than adding them to the worklist and then ignoring them.
llvm-svn: 100158
2010-04-02 00:10:41 +00:00
737195069a
Remove trailing whitespace.
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llvm-svn: 100148
2010-04-01 23:06:38 +00:00
37b73d9d3e
Rewrite another SSAUpdater function to avoid recursion.
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llvm-svn: 100147
2010-04-01 23:05:58 +00:00
8409feadf0
Change another SSAUpdater function to avoid recursion.
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llvm-svn: 100131
2010-04-01 20:04:30 +00:00
043c0406f7
Simplify the code to check for existing PHIs, now that it is only used in
...
one place. This removes the template function added in svn 94690.
llvm-svn: 100130
2010-04-01 19:53:48 +00:00
38fc88ee5d
The SSAUpdater should avoid recursive traversals of the CFG, since that may
...
blow out the stack for really big functions. Start by fixing an easy case.
llvm-svn: 100126
2010-04-01 18:46:59 +00:00
ac229124f4
Rewrite part of the SSAUpdater to be more careful about inserting redundant
...
PHIs. The previous algorithm was unable to reliably detect when existing
PHIs in a cycle can be reused. I'm still working on reducing a testcase.
Radar 7711900.
llvm-svn: 100047
2010-03-31 20:51:00 +00:00
6f7fd28824
Revert Mon Ping's change 99928, since it broke all the llvm-gcc buildbots.
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llvm-svn: 99948
2010-03-30 22:27:04 +00:00
7460571381
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
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e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
A update of langref will occur in a subsequent checkin.
llvm-svn: 99928
2010-03-30 20:55:56 +00:00
39027c403c
Fix a grammaro.
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llvm-svn: 99917
2010-03-30 20:04:57 +00:00
b469818279
fix two cases where the arguments were extracted from the wrong range out of the InvokeInst
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spotted by baldrick -- thanks\!
llvm-svn: 99914
2010-03-30 19:20:53 +00:00
6c6b2fd2b2
rename pred_const_iterator to const_pred_iterator for consistency's sake
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llvm-svn: 99567
2010-03-25 23:25:28 +00:00
c78d720f02
rename use_const_iterator to const_use_iterator for consistency's sake
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llvm-svn: 99564
2010-03-25 23:06:16 +00:00
1d38538fb6
Temporarily revert this, it's causing an issue with an internal project.
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llvm-svn: 99451
2010-03-24 23:35:21 +00:00
a2fbc0ae1b
Finally land the InvokeInst operand reordering.
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I have audited all getOperandNo calls now, fixing
hidden assumptions. CallSite related uglyness will
be eliminated successively.
Note this patch has a long and griveous history,
for all the back-and-forths have a look at
CallSite.h's log.
llvm-svn: 99399
2010-03-24 13:21:49 +00:00
11ff53146f
cache result of UI.getOperandNo() instead of calling it twice, it is cheaper this way
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llvm-svn: 99394
2010-03-24 10:12:54 +00:00
00eeac4179
add some accessors to callsite/callinst/invokeinst to check
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for the noinline attribute, and make the inliner refuse to
inline a call site when the call site is marked noinline even
if the callee isn't. This fixes PR6682.
llvm-svn: 99341
2010-03-23 22:59:07 +00:00
d9e822345c
Teach simplify libcall to transform __strcpy_chk to __memcpy_chk to enable optimizations down stream.
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llvm-svn: 99282
2010-03-23 15:48:04 +00:00
9a7b270825
Fix 80 col violation.
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llvm-svn: 99224
2010-03-22 22:44:31 +00:00
e1517a084f
backing out r99170 because it still fails on clang-x86_64-darwin10-fnt
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llvm-svn: 99171
2010-03-22 09:11:00 +00:00
7a743e15e3
Now that hopefully all direct accesses to InvokeInst operands are fixed
...
we can reapply the InvokeInst operand reordering patch. (see r98957).
llvm-svn: 99170
2010-03-22 08:28:00 +00:00
6c56ed847e
back out r98957, it broke http://smooshlab.apple.com:8010/builders/clang-x86_64-darwin10-fnt/builds/703 in the nightly test suite
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llvm-svn: 98958
2010-03-19 13:50:02 +00:00
8335f9c0bf
Recommit r80858 again (which has been backed out in r80871).
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This time I did a self-hosted bootstrap on Linux x86-64,
with no problems. Let's see how darwin 64-bit self-hosting
goes. At the first sign of failure I'll back this out.
Maybe the valgrind bots give me a hint of what may be wrong
(it at all).
llvm-svn: 98957
2010-03-19 11:55:53 +00:00
b21991c4f5
Skip debug info intrinsics.
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llvm-svn: 98581
2010-03-15 21:25:29 +00:00
ee84f27536
Make returns more consistent with others.
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llvm-svn: 98490
2010-03-14 10:40:28 +00:00
a956527c92
Add a virtual destructor and give vtable a home.
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llvm-svn: 98376
2010-03-12 20:41:29 +00:00
7b88a49f3e
Factor checked library call optimization into a common helper class and use it
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to unify the almost identical code in CodeGenPrepare and InstCombineCalls.
llvm-svn: 98338
2010-03-12 09:27:41 +00:00
2fc395659c
stpcpy is so similar to strcpy, it doesn't deserve a complete copy of the __strcpy_chk -> strcpy code.
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llvm-svn: 98284
2010-03-11 20:45:13 +00:00
607de1de53
Lower stpcpy_chk when possible.
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llvm-svn: 98274
2010-03-11 19:24:34 +00:00
103e3ef893
Fix typo.
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llvm-svn: 98260
2010-03-11 17:45:38 +00:00
43dc11c525
Add strncpy libcall creator. Use it when it should be used.
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llvm-svn: 98219
2010-03-11 01:25:07 +00:00
2734ebd37f
Add a DominatorTree argument to isLCSSA so that it doesn't have to
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compute a set of reachable blocks for itself each time it is called, which
is fairly frequently.
llvm-svn: 98179
2010-03-10 19:38:49 +00:00
b7e0b87441
Fix a comment.
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llvm-svn: 98122
2010-03-10 02:18:48 +00:00
3b548aa8e2
Avoid using DIDescriptor.isNull().
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This is a first step towards eliminating checks in Descriptor constructors.
llvm-svn: 97975
2010-03-08 20:52:55 +00:00
bc97f6b757
Revert r97947.
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llvm-svn: 97963
2010-03-08 19:20:38 +00:00
fe28599f6f
Avoid using DIDescriptor.isNull().
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This is a first step towards eliminating unncessary constructor checks in light weight DIDescriptor wrappers.
llvm-svn: 97947
2010-03-08 18:25:48 +00:00
65bb311629
Update CMake build.
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llvm-svn: 97846
2010-03-05 22:34:16 +00:00
87abfc506f
Move SimplifyLibCalls's LibCall builders to a separate file so they
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can be used in more places. Add an argument for the TargetData that
most of them need. Update for the getInt8PtrTy() change. Should be
no functionality change.
llvm-svn: 97844
2010-03-05 22:25:30 +00:00
39917c7c81
Add some debug output to LoopSimplify.
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llvm-svn: 97458
2010-03-01 17:55:27 +00:00
a9c205cc88
Make LoopSimplify change conditional branches in loop exiting blocks
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which branch on undef to branch on a boolean constant for the edge
exiting the loop. This helps ScalarEvolution compute trip counts for
loops.
Teach ScalarEvolution to recognize single-value PHIs, when safe, and
ForgetSymbolicName to forget such single-value PHI nodes as apprpriate
in ForgetSymbolicName.
llvm-svn: 97126
2010-02-25 06:57:05 +00:00
aff96b2132
Rename SuccessorNumber to GetSuccessorNumber.
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llvm-svn: 96387
2010-02-16 21:06:42 +00:00
3de492ec35
Refactor to share code to find the position of a basic block successor in the
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terminator's list of successors.
llvm-svn: 96377
2010-02-16 19:49:17 +00:00
19d0b47b1f
There are two ways of checking for a given type, for example isa<PointerType>(T)
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and T->isPointerTy(). Convert most instances of the first form to the second form.
Requested by Chris.
llvm-svn: 96344
2010-02-16 11:11:14 +00:00
6fbfe5897c
fix PR6305 by handling BlockAddress in a helper function
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called by jump threading.
llvm-svn: 96263
2010-02-15 20:47:49 +00:00
9dff9bec31
Uniformize the names of type predicates: rather than having isFloatTy and
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isInteger, we now have isFloatTy and isIntegerTy. Requested by Chris!
llvm-svn: 96223
2010-02-15 16:12:20 +00:00
5e7f705934
Speed up codegen prepare from 3.58s to 0.488s.
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llvm-svn: 96081
2010-02-13 05:01:14 +00:00
72c4dce884
PHINode::getBasicBlockIndex is O(n) in the number of inputs
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to a PHI, avoid it in the common case where the BB occurs
in the same index for multiple phis. This speeds up CGP on
an insane testcase from 8.35 to 3.58s.
llvm-svn: 96080
2010-02-13 04:24:19 +00:00
b0ebb65ab0
iterate over preds using PHI information when available instead of
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using pred_begin/end. It is much faster.
llvm-svn: 96079
2010-02-13 04:15:26 +00:00
916f48a054
Teach SimplifyCFG about magic pointer constants.
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Weird code sometimes uses pointer constants other than null. This patch
teaches SimplifyCFG to build switch instructions in those cases.
Code like this:
void f(const char *x) {
if (!x)
puts("null");
else if ((uintptr_t)x == 1)
puts("one");
else if (x == (char*)2 || x == (char*)3)
puts("two");
else if ((intptr_t)x == 4)
puts("four");
else
puts(x);
}
Now becomes a switch:
define void @f(i8* %x) nounwind ssp {
entry:
%magicptr23 = ptrtoint i8* %x to i64 ; <i64> [#uses=1]
switch i64 %magicptr23, label %if.else16 [
i64 0, label %if.then
i64 1, label %if.then2
i64 2, label %if.then9
i64 3, label %if.then9
i64 4, label %if.then14
]
Note that LLVM's own DenseMap uses magic pointers.
llvm-svn: 95439
2010-02-05 22:03:18 +00:00
8abb67df63
Use a SmallSetVector instead of a SetVector; this code showed up as a
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malloc caller in a profile.
llvm-svn: 95407
2010-02-05 19:20:15 +00:00
f65ba356e1
Fix pr6198 by moving the isSized() check to an outer conditional.
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The testcase from pr6198 does not crash for me -- I don't know what's up with
that -- so I'm not adding it to the tests.
llvm-svn: 94984
2010-02-01 17:41:44 +00:00
56600a15ad
Check alignment of loads when deciding whether it is safe to execute them
...
unconditionally. Besides checking the offset, also check that the underlying
object is aligned as much as the load itself.
llvm-svn: 94875
2010-01-30 04:42:39 +00:00
34e10c2218
Use uint64_t instead of unsigned for offsets and sizes.
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llvm-svn: 94835
2010-01-29 20:34:28 +00:00
7c42b9d51e
Improve isSafeToLoadUnconditionally to recognize that GEPs with constant
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indices are safe if the result is known to be within the bounds of the
underlying object.
llvm-svn: 94829
2010-01-29 19:19:08 +00:00
006b53f199
mem2reg erases the dbg.declare intrinsics that it converts to dbg.val intrinsics
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llvm-svn: 94763
2010-01-29 00:01:35 +00:00
7577e948e4
Avoid creating redundant PHIs in SSAUpdater::GetValueInMiddleOfBlock.
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This was already being done in SSAUpdater::GetValueAtEndOfBlock so I've
just changed SSAUpdater to check for existing PHIs in both places.
llvm-svn: 94690
2010-01-27 22:01:02 +00:00
1266d46d32
Don't bother with sprintf, just pass the Twine through.
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llvm-svn: 94684
2010-01-27 19:58:47 +00:00
65f4733b77
some cleanups.
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llvm-svn: 94649
2010-01-27 02:12:20 +00:00
711e701f1c
no need to check for null
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llvm-svn: 94648
2010-01-27 02:04:20 +00:00
477d9274bb
When converting dbg.declare to dbg.value, attach promoted store's debug metadata to dbg.value
...
llvm-svn: 94634
2010-01-27 00:44:36 +00:00
2b17e2a452
Avoid extra calls to MD->getNumOperands()
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llvm-svn: 94618
2010-01-26 23:29:09 +00:00
9ecd2f039f
Switch AllocaDbgDeclares to SmallVector and don't leak DIFactory
...
llvm-svn: 94567
2010-01-26 18:57:53 +00:00
cd94410152
In mem2reg, for all alloca/stores that get promoted where the alloca has an associated llvm.dbg.declare instrinsic, insert an llvm.dbg.var intrinsic before each store.
...
llvm-svn: 94493
2010-01-26 02:42:15 +00:00
8a588e1444
Revert r94260 until findDbgDeclare() is made more efficient
...
llvm-svn: 94432
2010-01-25 17:52:13 +00:00
823aed16f9
make -fno-rtti the default unless a directory builds with REQUIRES_RTTI.
...
llvm-svn: 94378
2010-01-24 20:43:08 +00:00
5006e43faf
In mem2reg, for all alloca/stores that get promoted where the alloca has an associated llvm.dbg.declare instrinsic, insert an llvm.dbg.var intrinsic before each store
...
llvm-svn: 94260
2010-01-23 00:17:34 +00:00
5f8c8c034a
Keep ignoring pointer-to-pointer bitcasts
...
llvm-svn: 94194
2010-01-22 19:05:05 +00:00
7ba0661f27
Stop building RTTI information for *most* llvm libraries. Notable
...
missing ones are libsupport, libsystem and libvmcore. libvmcore is
currently blocked on bugpoint, which uses EH. Once it stops using
EH, we can switch it off.
This #if 0's out 3 unit tests, because gtest requires RTTI information.
Suggestions welcome on how to fix this.
llvm-svn: 94164
2010-01-22 06:49:46 +00:00
7b151e9f06
No need to look through bitcasts for DbgInfoIntrinsic
...
llvm-svn: 94114
2010-01-21 23:09:12 +00:00
ae4d949721
DbgInfoIntrinsic no longer appear in an instruction's use list
...
llvm-svn: 94113
2010-01-21 23:08:36 +00:00
1df65186d1
DbgInfoIntrinsics no longer appear in an instruction's use list; so clean up looking for them in use iterations and remove OnlyUsedByDbgInfoIntrinsics()
...
llvm-svn: 94111
2010-01-21 23:05:53 +00:00
24716b6c63
It turns out that this #include is needed because otherwise
...
ValueMapper.cpp ends up calling an out of line
__ZNK4llvm12PATypeHolder3getEv, which is a template and llvm-config
determines arbitrarily to use the one in libipo. This sucks, but
keeping the #include is a reasonable workaround.
llvm-svn: 94103
2010-01-21 21:29:25 +00:00
9889b4be04
unbreak the build, apparently without this transformutils starts depending on libipa?
...
llvm-svn: 94102
2010-01-21 21:20:51 +00:00
e39837d5ee
tidy up
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llvm-svn: 94101
2010-01-21 21:05:54 +00:00
a9ad174b49
Don't need to include IntrinsicInst.h any more
...
llvm-svn: 94092
2010-01-21 19:33:59 +00:00
d089f4e10b
No need to map NULL operands of metadata
...
llvm-svn: 94091
2010-01-21 19:26:20 +00:00
f2462407ee
Switch Elts from vector to SmallVector
...
llvm-svn: 93989
2010-01-20 06:56:16 +00:00
5fa88d4e30
Map operands of all function-local metadata, not just metadata passed to llvm.dbg.declare intrinsics
...
llvm-svn: 93979
2010-01-20 05:49:59 +00:00
696cb8d410
While mapping llvm.dbg.declare intrinsic manually map its operand, if possible,
...
because it points to an alloca instruction through metadata.
llvm-svn: 93757
2010-01-18 19:52:14 +00:00
e0da4b6cff
Fix a comment typo.
...
llvm-svn: 93560
2010-01-15 21:55:02 +00:00
7c743f2c74
add a helper function.
...
llvm-svn: 93251
2010-01-12 19:40:54 +00:00
321098ebec
Fix nondeterministic behavior.
...
llvm-svn: 93093
2010-01-10 01:07:22 +00:00
f50a3f19da
Fix nondeterministic behavior.
...
llvm-svn: 93038
2010-01-09 01:06:49 +00:00
a81a6dff0d
Convert a ton of simple integer type equality tests to the new predicate.
...
llvm-svn: 92760
2010-01-05 20:07:06 +00:00
c3c031bb37
Nick Lewycky pointed out that this code makes changes unconditionally.
...
llvm-svn: 92739
2010-01-05 17:50:58 +00:00
28943873e6
Use do+while instead of while for loops which obviously have a
...
non-zero trip count. Use SmallVector's pop_back_val().
llvm-svn: 92734
2010-01-05 16:27:25 +00:00
cb99fe9839
Make RecursivelyDeleteTriviallyDeadInstructions,
...
RecursivelyDeleteDeadPHINode, and DeleteDeadPHIs return a flag
indicating whether they made any changes.
llvm-svn: 92732
2010-01-05 15:45:31 +00:00
ccce8bae14
Avoid going through the LLVMContext for type equality where it's safe to dereference the type pointer.
...
llvm-svn: 92726
2010-01-05 13:12:22 +00:00
084b0dde9d
Change errs() to dbgs().
...
llvm-svn: 92606
2010-01-05 01:26:57 +00:00
76a4e852f8
Change errs() to dbgs().
...
llvm-svn: 92605
2010-01-05 01:26:54 +00:00
725c7c3f2e
Change errs() to dbgs().
...
llvm-svn: 92604
2010-01-05 01:26:52 +00:00
3774a38fdf
Change errs() to dbgs().
...
llvm-svn: 92603
2010-01-05 01:26:49 +00:00
50c54238e4
Change errs() to dbgs().
...
llvm-svn: 92602
2010-01-05 01:26:45 +00:00
0ad6dce031
Change errs() to dbgs().
...
llvm-svn: 92601
2010-01-05 01:26:44 +00:00
627f40a9f2
Change errs() to dbgs().
...
llvm-svn: 92600
2010-01-05 01:26:41 +00:00
a8a32dd987
Change errs() to dbgs().
...
llvm-svn: 92599
2010-01-05 01:26:39 +00:00
be94f23992
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.
llvm-svn: 92557
2010-01-05 01:10:40 +00:00
6a0ca6aa90
fix Analysis/DebugInfo.h to not include Metadata.h. Do this
...
by moving one method out of line and eliminating redundant checks
from other methods.
llvm-svn: 92337
2009-12-31 03:02:08 +00:00
9b493028df
rename "elements" of metadata to "operands". "Elements" are
...
things that occur in types. "operands" are things that occur
in values.
llvm-svn: 92322
2009-12-31 01:22:29 +00:00
756d7086c1
Use an array instead of a SmallVector.
...
llvm-svn: 92264
2009-12-29 11:04:52 +00:00
22e13ba4e5
prune #includes.
...
llvm-svn: 92260
2009-12-29 09:12:29 +00:00
a0566979b7
Final step in the metadata API restructuring: move the
...
getMDKindID/getMDKindNames methods to LLVMContext (and add
convenience methods to Module), eliminating MetadataContext.
Move the state that it maintains out to LLVMContext.
llvm-svn: 92259
2009-12-29 09:01:33 +00:00
6311212bf9
remove useless argument.
...
llvm-svn: 92256
2009-12-29 08:03:58 +00:00
2f2aa2b067
This is a major cleanup of the instruction metadata interfaces that
...
I asked Devang to do back on Sep 27. Instead of going through the
MetadataContext class with methods like getMD() and getMDs(), just
ask the instruction directly for its metadata with getMetadata()
and getAllMetadata().
This includes a variety of other fixes and improvements: previously
all Value*'s were bloated because the HasMetadata bit was thrown into
value, adding a 9th bit to a byte. Now this is properly sunk down to
the Instruction class (the only place where it makes sense) and it
will be folded away somewhere soon.
This also fixes some confusion in getMDs and its clients about
whether the returned list is indexed by the MDID or densely packed.
This is now returned sorted and densely packed and the comments make
this clear.
This introduces a number of fixme's which I'll follow up on.
llvm-svn: 92235
2009-12-28 23:41:32 +00:00
7093946ab1
rename getMDKind -> getMDKindID, make it autoinsert if an MD Kind
...
doesn't exist already, eliminate registerMDKind. Tidy up a bunch
of random stuff.
llvm-svn: 92225
2009-12-28 20:45:51 +00:00
eaa25da8bb
improve indentation avoid a pointless conversion from weakvh to trackingvh,
...
no functionality change.
llvm-svn: 91848
2009-12-21 22:43:03 +00:00
4edfcb88e1
revert r89298, which was committed without a testcase. I think
...
the underlying PHI node insertion issue in SSAUpdate is fixed.
llvm-svn: 91821
2009-12-21 07:45:57 +00:00
8fb07c5a21
fix PR5837 by having SSAUpdate reuse phi nodes for the
...
'GetValueInMiddleOfBlock' case, instead of inserting
duplicates.
A similar fix is almost certainly needed by the machine-level
SSAUpdate implementation.
llvm-svn: 91820
2009-12-21 07:16:11 +00:00
18fa5686f6
Add Loop contains utility methods for testing whether a loop
...
contains another loop, or an instruction. The loop form is
substantially more efficient on large loops than the typical
code it replaces.
llvm-svn: 91654
2009-12-18 01:24:09 +00:00
1af1954852
Update a comment.
...
llvm-svn: 91645
2009-12-18 00:28:43 +00:00
45d040bd85
Remove isPod() from DenseMapInfo, splitting it out to its own
...
isPodLike type trait. This is a generally useful type trait for
more than just DenseMap, and we really care about whether something
acts like a pod, not whether it really is a pod.
llvm-svn: 91421
2009-12-15 07:26:43 +00:00
dcf5dacb2c
Don't leave pointers uninitialized in the default constructor. GCC complains
...
about the potential use of these uninitialized members under certain conditions.
llvm-svn: 91239
2009-12-13 07:04:45 +00:00
8bca014d7f
Remove unnecessary #include "llvm/LLVMContext.h".
...
llvm-svn: 90836
2009-12-08 05:45:41 +00:00
2bd9609992
add an assert to make it really clear what this is doing. Return singularval as
...
a compile time perf optimization to avoid a load.
llvm-svn: 90507
2009-12-04 01:03:32 +00:00
a48f44d9ee
improve portability to avoid conflicting with std::next in c++'0x.
...
Patch by Howard Hinnant!
llvm-svn: 90365
2009-12-03 00:50:42 +00:00
d831ef4945
Move EliminateDuplicatePHINodes() from SimplifyCFG.cpp to Local.cpp
...
llvm-svn: 90324
2009-12-02 17:06:45 +00:00
15a1287c1f
Pull LLVMContext out of PromoteMemToReg.
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llvm-svn: 89645
2009-11-23 03:50:44 +00:00
fbffe63528
Make Loop::getLoopLatch() work on loops which don't have preheaders, as
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it may be used in contexts where preheader insertion may have failed due
to an indirectbr.
Make LoopSimplify's LoopSimplify::SeparateNestedLoop properly fail in
the case that it would require splitting an indirectbr edge.
These fix PR5502.
llvm-svn: 89484
2009-11-20 20:51:18 +00:00
dcef55b2ef
Eliminate duplicate phi nodes in loops. Loop rotation, for example, can introduce these, and it's beneficial to later passes to clean them up.
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llvm-svn: 89298
2009-11-19 02:03:18 +00:00
cc69a1ba9a
Make EliminateDuplicatePHINodes() available as a utility function
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llvm-svn: 89297
2009-11-19 02:02:10 +00:00
11881e2283
Add the braces gcc suggested.
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llvm-svn: 86933
2009-11-12 02:52:56 +00:00
ba61fed5d3
Don't trivially delete unused calls to llvm.invariant.start. This allows
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llvm.invariant.start to be used without necessarily being paired with a call
to llvm.invariant.end. If you run the entire optimization pipeline then such
calls are in fact deleted (adce does it), but that's actually a good thing since
we probably do want them to be zapped late in the game. There should really be
an integration test that checks that the llvm.invariant.start call lasts long
enough that all passes that do interesting things with it get to do their stuff
before it is deleted. But since no passes do anything interesting with it yet
this will have to wait for later.
llvm-svn: 86840
2009-11-11 15:34:13 +00:00
f6eeaebd76
Implement support to debug inlined functions.
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llvm-svn: 86748
2009-11-10 23:06:00 +00:00
852d6d64ff
move some generally useful functions out of jump threading
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into libanalysis and transformutils.
llvm-svn: 86735
2009-11-10 22:26:15 +00:00
cbd18fc93d
refactor TryToSimplifyUncondBranchFromEmptyBlock out of SimplifyCFG.
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llvm-svn: 86666
2009-11-10 05:59:26 +00:00
cdfb80de16
fix ConstantFoldCompareInstOperands to take the LHS/RHS as
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individual operands instead of taking a temporary array
llvm-svn: 86619
2009-11-09 23:06:58 +00:00
f324dd65f8
Fix a comment in a typo that Duncan noticed.
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llvm-svn: 86575
2009-11-09 18:59:22 +00:00
c146c78060
Generalize LCSSA to handle loops with exits with predecessors outside
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the loop. This is needed because with indirectbr it may not be possible
for LoopSimplify to guarantee that all loop exit predecessors are
inside the loop. This fixes PR5437.
LCCSA no longer actually requires LoopSimplify form, but for now it
must still have the dependency because the PassManager doesn't know
how to schedule LoopSimplify otherwise.
llvm-svn: 86569
2009-11-09 18:28:24 +00:00
46b5c642b9
remove a bunch of extraneous LLVMContext arguments
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from various APIs, addressing PR5325.
llvm-svn: 86231
2009-11-06 04:27:31 +00:00
928068a886
Avoid calling getUniqueExitBlocks from within LoopSimplify, as it depends
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on loops having dedicated exits, which LoopSimplify can no longer always
guarantee.
llvm-svn: 86181
2009-11-05 21:48:32 +00:00
1ef784db67
The introduction of indirectbr meant the introduction of
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unsplittable critical edges, which means the introduction of
loops which cannot be transformed to LoopSimplify form. Fix
LoopSimplify to avoid transforming such loops into invalid
code.
llvm-svn: 86176
2009-11-05 21:14:46 +00:00
415c64ea3f
Teach LoopUnroll how to bail if LoopSimplify can't give it what it needs.
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llvm-svn: 86164
2009-11-05 19:44:06 +00:00
885c46e387
Delete an unused member variable.
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llvm-svn: 86160
2009-11-05 19:33:15 +00:00
00c793822e
Add an assertion to catch indirectbr in SplitBlockPredecessors. This
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makes several optimization passes abort in cases where they're currently
silently miscompiling code.
Remove the indirectbr assertion from SplitEdge. Indirectbr is only
a problem for critical edges, and SplitEdge defers to SplitCriticalEdge
to handle those, and SplitCriticalEdge has its own assertion for
indirectbr.
llvm-svn: 86147
2009-11-05 18:25:44 +00:00
5a3832496a
remove a isFreeCall check: it is a callinst that can write to memory already.
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llvm-svn: 85863
2009-11-03 05:33:46 +00:00
2124f0d43f
Alphabetize.
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llvm-svn: 85859
2009-11-03 04:01:53 +00:00
4e849162ef
fix a bug exposed by moving SRoA earlier which caused a crash building kc++
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llvm-svn: 85786
2009-11-02 04:37:17 +00:00
249f96e339
improve comment.
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llvm-svn: 85725
2009-11-01 18:17:37 +00:00
a1dc101f66
change llvm::MergeBlockIntoPredecessor to not merge two blocks BB1->BB2
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when BB2 has its address taken. Since it ends up doing BB2->rauw(BB1),
this can cause the address of the entry block to be taken. Since it is
generally undesirable to nuke blocks whose address is taken, even when
we can, just unconditionally stop this xform.
llvm-svn: 85708
2009-11-01 04:57:33 +00:00
54a4b84012
constant fold indirectbr(blockaddress(%bb)) -> br label %bb.
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llvm-svn: 85704
2009-11-01 03:40:38 +00:00
aa99c94e2a
Revert 85678/85680. The decision is to stay with the current form of
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indirectbr, thus we don't need "blockaddr(@func, null)". Eliminate it
for simplicity.
llvm-svn: 85699
2009-11-01 01:27:45 +00:00
c872b09676
llvm::SplitEdge should refuse to split an edge from an indirectbr.
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Fix CodeGenPrepare to not try to split edges from indirectbr.
llvm-svn: 85690
2009-10-31 22:04:43 +00:00
ba364b0a9a
update the comment above llvm::SplitCriticalEdge, and make
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it abort on IndirectBrInst as describe in the comment.
llvm-svn: 85688
2009-10-31 21:51:10 +00:00
3c89c53f35
adjust a couple xforms to work with null bb's in BlockAddress.
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llvm-svn: 85680
2009-10-31 20:13:24 +00:00
2d02ff8cbb
Revert r85667. LoopUnroll currently can't call utility functions which
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auto-update the DominatorTree because it doesn't keep the DominatorTree
current while it works.
llvm-svn: 85670
2009-10-31 17:33:01 +00:00
144694bcb7
Remove redundant code.
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llvm-svn: 85668
2009-10-31 16:16:41 +00:00
041e2dbad1
Merge the enhancements from LoopUnroll's FoldBlockIntoPredecessor into
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MergeBlockIntoPredecessor. This makes SimplifyCFG slightly more aggressive,
and makes it unnecessary for LoopUnroll to have its own copy of this code.
llvm-svn: 85667
2009-10-31 16:08:00 +00:00
fa8969f70e
Simplify this code.
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llvm-svn: 85662
2009-10-31 14:46:50 +00:00
f35b6640f6
Update CMakeLists for recent renames.
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llvm-svn: 85660
2009-10-31 14:38:25 +00:00
f70e76c435
Rename UnrollLoop.cpp to LoopUnroll.cpp, and LoopUnroll.cpp to
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LoopUnrollPass.cpp, for consistency with other passes which are
similarly split.
llvm-svn: 85659
2009-10-31 14:37:31 +00:00
7f7d97eb73
Add a comment about a missed opportunity.
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llvm-svn: 85635
2009-10-30 23:15:43 +00:00
1a95106602
Teach SimplifyCFG how to eliminate duplicate PHI nodes within a block.
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This reduces codesize on a variety of codes by 1-2% on x86-64. It also
helps clean up after SSAUpdater.
llvm-svn: 85626
2009-10-30 22:39:04 +00:00
ee8b951e73
teach various passes about blockaddress. We no longer
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crash on any clang tests.
llvm-svn: 85465
2009-10-29 01:21:20 +00:00
be060382e9
teach ValueMapper about BlockAddress', making bugpoint a lot more useful.
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llvm-svn: 85458
2009-10-29 00:31:02 +00:00
cf5a47d63d
unindent massive blocks, no functionality change.
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llvm-svn: 85457
2009-10-29 00:28:30 +00:00
11cf3f4a27
Factor out redundancy from clone() implementations.
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llvm-svn: 85327
2009-10-27 22:16:29 +00:00
f390e04a47
Rename MallocFreeHelper as MemoryBuiltins
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llvm-svn: 85286
2009-10-27 20:05:49 +00:00
c6b3b25f94
Fix a pretty serious misfeature of the inliner: if it inlines a function
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with multiple return values it inserts a PHI to merge them all together.
However, if the return values are all the same, it ends up with a pointless
PHI and this pointless PHI happens to really block SRoA from happening in
at least a silly C++ example written by Doug, but probably others. This
fixes rdar://7339069.
llvm-svn: 85206
2009-10-27 05:39:41 +00:00
762195bd01
Rename MallocHelper as MallocFreeHelper, since it now also identifies calls to free()
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llvm-svn: 85181
2009-10-26 23:58:56 +00:00
de5ad42aa1
Remove FreeInst.
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Remove LowerAllocations pass.
Update some more passes to treate free calls just like they were treating FreeInst.
llvm-svn: 85176
2009-10-26 23:43:48 +00:00
974e12b2d3
Remove includes of Support/Compiler.h that are no longer needed after the
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VISIBILITY_HIDDEN removal.
llvm-svn: 85043
2009-10-25 06:57:41 +00:00
02d5f77d26
Remove VISIBILITY_HIDDEN from class/struct found inside anonymous namespaces.
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Chris claims we should never have visibility_hidden inside any .cpp file but
that's still not true even after this commit.
llvm-svn: 85042
2009-10-25 06:33:48 +00:00
ef41a1ce3c
MapValue doesn't needs its LLVMContext argument.
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llvm-svn: 85020
2009-10-24 23:37:16 +00:00
e297149e26
Auto-upgrade free instructions to calls to the builtin free function.
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Update all analysis passes and transforms to treat free calls just like FreeInst.
Remove RaiseAllocations and all its tests since FreeInst no longer needs to be raised.
llvm-svn: 84987
2009-10-24 04:23:03 +00:00
7f903681ac
alternate fix for PR5258 which avoids worklist problems, with reduced testcase.
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llvm-svn: 84667
2009-10-20 20:27:49 +00:00
cf10ec951d
Fix PR5258, jump-threading creating invalid PHIs.
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When an incoming value for a PHI is updated, we must also updated all other
incoming values for the same BB to match, otherwise we create invalid PHIs.
llvm-svn: 84638
2009-10-20 15:42:00 +00:00
8f986672a1
Fix SplitBlockPredecessors' LoopInfo updating code to handle the case
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where a loop's header is being split and it has predecessors which are not
contained by the most-nested loop which contains the loop.
This fixes PR5235.
llvm-svn: 84505
2009-10-19 16:04:50 +00:00
511d2e26dd
Change instnamer to name arguments "arg" instead of "tmp" for clarity, and
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to name basic blocks "bb" instead of "BB", for consistency.
llvm-svn: 84502
2009-10-19 14:47:32 +00:00
88b36f1140
Simplify some code (first hunk) and fix PR5208 (second hunk) by
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updating the callgraph when introducing a call.
llvm-svn: 84310
2009-10-17 05:39:39 +00:00
a3aaf85e23
Remove MallocInst from LLVM Instructions.
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llvm-svn: 84299
2009-10-17 01:18:07 +00:00
0058c7bcb0
Strip trailing white space.
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llvm-svn: 84256
2009-10-16 15:20:13 +00:00
113d959f1b
Update CMake file.
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llvm-svn: 84001
2009-10-13 18:48:07 +00:00
54463e837a
Commit the removal of this file, which is now moved to lib/Analysis.
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llvm-svn: 83999
2009-10-13 18:37:20 +00:00
5b3e05bcaa
Start refactoring the inline cost estimation code so that it can be used
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for purposes other than inlining.
llvm-svn: 83997
2009-10-13 18:24:11 +00:00
19788ca686
change simplifycfg to not duplicate 'unwind' instructions. Hopefully
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this will increase the likelihood of common code getting sunk towards
the unwind.
llvm-svn: 83996
2009-10-13 18:13:05 +00:00
71d353dd48
rewrite LCSSA to use SSAUpdate, to only return true if it modifies
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the IR, and to implement the FIXME'd optimization.
llvm-svn: 83748
2009-10-11 02:53:37 +00:00
101dde30ed
clean up and simplify some code. Don't use setvector when things will be
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inserted only once, just use vector. Don't compute ExitBlocks unless we
need it, change std::sort to array_pod_sort.
llvm-svn: 83747
2009-10-11 01:07:15 +00:00
9c382cebc5
add a simple helper method.
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llvm-svn: 83745
2009-10-10 23:41:48 +00:00
249265de06
add ability for clients of SSAUpdater to find out about the
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PHI nodes inserted.
llvm-svn: 83744
2009-10-10 23:15:24 +00:00
67cdd8b567
add the ability to get a rewritten value from the middle of a block,
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not just at the end. Add a big comment explaining when this could
be useful (which never happens for jump threading).
llvm-svn: 83741
2009-10-10 23:00:11 +00:00
e474a8d3a7
rename GetValueInBlock -> GetValueAtEndOfBlock to better reflect
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what it does.
llvm-svn: 83740
2009-10-10 22:41:58 +00:00
65e69a77e1
use a typedef instead of spelling out an insane type. Yay for auto someday.
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llvm-svn: 83707
2009-10-10 09:09:20 +00:00
60d4e69c81
Implement an efficient and fully general SSA update mechanism that
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works on unstructured CFGs. This implements PR217, our oldest open PR.
llvm-svn: 83705
2009-10-10 09:04:27 +00:00
f30a2b0c86
random tidying
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llvm-svn: 83701
2009-10-10 06:22:45 +00:00
96a5b87ae2
Use names instead of numbers for some of the magic
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constants used in inlining heuristics (especially
those used in more than one file). No functional change.
llvm-svn: 83675
2009-10-09 21:42:02 +00:00
e666bc9f64
Add FreeInst to the "is a call" check for Insts that are calls, but
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not intrinsics.
llvm-svn: 83441
2009-10-07 00:54:08 +00:00
6ba26317ce
While we still have a MallocInst treat it as a call like any other
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for inlining.
When MallocInst goes away this code will be subsumed as part of
calls and work just fine...
llvm-svn: 83434
2009-10-07 00:02:18 +00:00
Chris Lattner