1815b688cc
Make sure IPSCCP never marks a tracked call as overdefined in SCCPSolver::ResolvedUndefsIn. If we do, we can end up in a situation where a function is resolved to return a constant, but the caller is marked overdefined, which confuses the code later.
...
<rdar://problem/9956541> (again).
llvm-svn: 140210
2011-09-20 23:28:51 +00:00
321fb37773
Use Duncan's patch to delete the instructions in reverse order (minus the landingpad and terminator).
...
llvm-svn: 139090
2011-09-04 09:43:36 +00:00
a336e70573
Update comments to reflect reality.
...
llvm-svn: 139023
2011-09-02 18:43:33 +00:00
bf8280ff27
Change worklist driven deletion to be an iterative process.
...
Duncan noticed this!
llvm-svn: 138967
2011-09-01 21:28:33 +00:00
770d0f0700
Make sure we aren't deleting the landingpad instruction.
...
The landingpad instruction is required in the landing pad block. Because we're
not deleting terminating instructions, the invoke may still jump to here (see
Transforms/SCCP/2004-11-16-DeadInvoke.ll). Remove all uses of the landingpad
instruction, but keep it around until code-gen can remove the basic block.
llvm-svn: 138890
2011-08-31 20:55:20 +00:00
d7749be2d7
Silly mistake from r137777; restore significant isStructTy() checks. While here, be a bit more defensive
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with unknown instructions.
Fixes PR10687.
llvm-svn: 137836
2011-08-17 18:10:43 +00:00
0793eb4c46
A bunch of misc fixes to SCCPSolver::ResolvedUndefsIn, including a fix to stop
...
making random bad assumptions about instructions which are not explicitly listed.
Includes fix for rdar://9956541, a version of "undef ^ undef should return
0 because it's easier than arguing with users".
llvm-svn: 137777
2011-08-16 22:06:31 +00:00
56f2f21254
Minor bug in SCCP found by inspection. (I don't think it's possible to hit this with a normal pass pipeline, but fixing for completeness.)
...
llvm-svn: 137755
2011-08-16 21:12:35 +00:00
fae1475823
Initial commit of the 'landingpad' instruction.
...
This implements the 'landingpad' instruction. It's used to indicate that a basic
block is a landing pad. There are several restrictions on its use (see
LangRef.html for more detail). These restrictions allow the exception handling
code to gather the information it needs in a much more sane way.
This patch has the definition, implementation, C interface, parsing, and bitcode
support in it.
llvm-svn: 137501
2011-08-12 20:24:12 +00:00
366bccefad
Add new atomic instructions to SCCP. No functional change, but stops debug spam.
...
llvm-svn: 136723
2011-08-02 21:35:16 +00:00
f891bf8b30
Add the 'resume' instruction for the new EH rewrite.
...
This adds the 'resume' instruction class, IR parsing, and bitcode reading and
writing. The 'resume' instruction resumes propagation of an existing (in-flight)
exception whose unwinding was interrupted with a 'landingpad' instruction (to be
added later).
llvm-svn: 136589
2011-07-31 06:30:59 +00:00
ad088e6724
Revert r136253, r136263, r136269, r136313, r136325, r136326, r136329, r136338,
...
r136339, r136341, r136369, r136387, r136392, r136396, r136429, r136430, r136444,
r136445, r136446, r136253 pending review.
llvm-svn: 136556
2011-07-30 05:42:50 +00:00
6c923bb8d9
Merge the contents from exception-handling-rewrite to the mainline.
...
This adds the new instructions 'landingpad' and 'resume'.
llvm-svn: 136253
2011-07-27 20:18:04 +00:00
89b694b096
Misc mid-level changes for new 'fence' instruction.
...
llvm-svn: 136205
2011-07-27 01:08:30 +00:00
77cb8e681f
Add missing space (this line is no longer pushing the 80-column limit).
...
llvm-svn: 135973
2011-07-25 21:16:04 +00:00
ed8db7d9df
Convert ConstantExpr::getGetElementPtr and
...
ConstantExpr::getInBoundsGetElementPtr to use ArrayRef.
llvm-svn: 135673
2011-07-21 14:31:17 +00:00
5cf753c95e
move tier out of an anonymous namespace, it doesn't make sense
...
to for it to be an an anon namespace and be in a header.
Eliminate some extraenous uses of tie.
llvm-svn: 135669
2011-07-21 06:21:31 +00:00
f4b14a2b0d
Use ArrayRef in ConstantFoldInstOperands and ConstantFoldCall.
...
llvm-svn: 135477
2011-07-19 13:32:40 +00:00
229907cd11
land David Blaikie's patch to de-constify Type, with a few tweaks.
...
llvm-svn: 135375
2011-07-18 04:54:35 +00:00
3de2ddc578
PR7952: Make isa<> use the same logic as cast<>, so that they both work
...
consistently.
llvm-svn: 131803
2011-05-21 19:13:10 +00:00
0ab5e2cded
Fix a ton of comment typos found by codespell. Patch by
...
Luis Felipe Strano Moraes!
llvm-svn: 129558
2011-04-15 05:18:47 +00:00
ae0275e018
SCCP doesn't actually preserve the CFG. It will delete and insert terminator
...
instructions.
llvm-svn: 123973
2011-01-21 08:38:09 +00:00
ed1fb92cfe
simplify a little
...
llvm-svn: 123573
2011-01-16 07:11:21 +00:00
d3a58c8fa1
Avoid exponential growth of a table. It feels like
...
there should be a better way to do this. PR 8679.
llvm-svn: 120457
2010-11-30 20:23:21 +00:00
6c18d1aac0
Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which
...
must be called in the pass's constructor. This function uses static dependency declarations to recursively initialize
the pass's dependencies.
Clients that only create passes through the createFooPass() APIs will require no changes. Clients that want to use the
CommandLine options for passes will need to manually call the appropriate initialization functions in PassInitialization.h
before parsing commandline arguments.
I have tested this with all standard configurations of clang and llvm-gcc on Darwin. It is possible that there are problems
with the static dependencies that will only be visible with non-standard options. If you encounter any crash in pass
registration/creation, please send the testcase to me directly.
llvm-svn: 116820
2010-10-19 17:21:58 +00:00
df7a4f2515
Now with fewer extraneous semicolons!
...
llvm-svn: 115996
2010-10-07 22:25:06 +00:00
b45de95345
remove some dead code.
...
llvm-svn: 111344
2010-08-18 02:41:56 +00:00
363226dfe8
fix PR7876: If ipsccp decides that a function's address is taken
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before it rewrites the code, we need to use that in the post-rewrite pass.
llvm-svn: 110962
2010-08-12 22:25:23 +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
62f0aac99d
simplify by using CallSite constructors; virtually eliminates CallSite::get from the tree
...
llvm-svn: 109687
2010-07-28 22:50:26 +00:00
a57b97e7e7
Fix batch of converting RegisterPass<> to INTIALIZE_PASS().
...
llvm-svn: 109045
2010-07-21 22:09:45 +00:00
87aa2243e2
fix PR6940: sitofp(undef) folds to 0.0, not undef.
...
llvm-svn: 102358
2010-04-26 18:21:23 +00:00
c6c153be45
fix a SCCP miscompilation that could happen when a
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forced constant is changed to a constant, we would end
up adding the instruction to the wrong worklist,
preventing it from being properly revisited. This fixes
rdar://7832370
llvm-svn: 100837
2010-04-09 01:14:31 +00:00
adca608281
fix a really nasty bug that Evan was tracking in SCCP. When resolving
...
undefs in branches/switches, we have two cases: a branch on a literal
undef or a branch on a symbolic value which is undef. If we have a
literal undef, the code was correct: forcing it to a constant is the
right thing to do.
If we have a branch on a symbolic value that is undef, we should force
the symbolic value to a constant, which then makes the successor block
live. Forcing the condition of the branch to being a constant isn't
safe if later paths become live and the value becomes overdefined. This
is the case that 'forcedconstant' is designed to handle, so just use it.
This fixes rdar://7765019 but there is no good testcase for this, the
one I have is too insane to be useful in the future.
llvm-svn: 100478
2010-04-05 22:14:48 +00:00
5d5db5342b
Introduce ImmutableCallSite, useful for contexts where no mutation
...
is necessary. Inherits from new templated baseclass CallSiteBase<>
which is highly customizable. Base CallSite on it too, in a configuration
that allows full mutation.
Adapt some call sites in analyses to employ ImmutableCallSite.
llvm-svn: 100100
2010-04-01 08:21:08 +00:00
c78d720f02
rename use_const_iterator to const_use_iterator for consistency's sake
...
llvm-svn: 99564
2010-03-25 23:06:16 +00:00
a2fbc0ae1b
Finally land the InvokeInst operand reordering.
...
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
9027ffb918
increase const goodness and remove pointless getUser() calls
...
llvm-svn: 99395
2010-03-24 10:29:52 +00:00
2af7e3dceb
fix grammaro's pointed out by daniel
...
llvm-svn: 97313
2010-02-27 07:50:40 +00:00
d887f1da73
fix PR6414, a nondeterminism issue in IPSCCP which was because
...
of a subtle interation in a loop operating in densemap order.
llvm-svn: 97288
2010-02-27 00:07:42 +00:00
19d0b47b1f
There are two ways of checking for a given type, for example isa<PointerType>(T)
...
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
389fc3b9f6
Change errs() to dbgs().
...
llvm-svn: 92612
2010-01-05 01:27:15 +00:00
1f522d98f8
Fix a use of an invalidated iterator in the case where there are multiple
...
adjacent uses of a dead basic block from the same user. This fixes PR5596.
llvm-svn: 89658
2009-11-23 16:13:39 +00:00
d15302afa0
Fix IPSCCP's code for deleting dead blocks to tolerate outstanding
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blockaddress users. This fixes PR5569.
llvm-svn: 89483
2009-11-20 20:19:14 +00:00
02e2cee7dc
fix a crash in SCCP handling extractvalue of an array, pointed out and
...
tracked down by Stephan Reiter!
llvm-svn: 86726
2009-11-10 22:02:09 +00:00
3fcbb82151
Do map insert+find in one step. TODO -= 2.
...
llvm-svn: 86133
2009-11-05 14:33:27 +00:00
762b56fa8c
Fix an iterator invalidation bug that happens when a hashtable
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resizes in IPSCCP. This fixes PR5394.
llvm-svn: 86036
2009-11-04 18:57:42 +00:00
156b8c7109
reimplement multiple return value handling in IPSCCP, making it
...
more aggressive an correct. This survives building llvm in 64-bit
mode with optimizations and the built llvm passes make check.
llvm-svn: 85973
2009-11-03 23:40:48 +00:00
2c427233d4
finish half thunk thought
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llvm-svn: 85937
2009-11-03 20:52:57 +00:00
cde8de519d
fix an IPSCCP bug I introduced when I changed IPSCCP to start working on
...
functions that don't have local linkage. Basically, we need to be more
careful about propagating argument information to functions whose results
we aren't tracking. This fixes a miscompilation of
LLVMCConfigurationEmitter.cpp when built with an llvm-gcc that has ipsccp
enabled.
llvm-svn: 85923
2009-11-03 19:24:51 +00:00
e1d5cd9f48
fix a subtle bug I introduced when refactoring SCCP. Testcase
...
to follow.
llvm-svn: 85903
2009-11-03 16:50:11 +00:00
fb14181b18
turn IPSCCP back on now that the iterator invalidation bug is fixed.
...
llvm-svn: 85858
2009-11-03 03:42:51 +00:00
b70ef3c8c7
fix a nasty iterator invalidation bug from my conversion from
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std::map to DenseMap, exposed on release llvm-gcc bootstrap.
llvm-svn: 85840
2009-11-02 23:25:39 +00:00
a15cc59dcb
revert r8579[56], which are causing unhappiness in buildbot land.
...
llvm-svn: 85818
2009-11-02 19:31:10 +00:00
a3d794ebbb
disable IPSCCP support for multiple return values, it is buggy, so just
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disable it until I can fix it.
llvm-svn: 85810
2009-11-02 18:22:51 +00:00
9d49f0c858
improve IPSCCP to be able to propagate the result of "!mayBeOverridden"
...
function to calls of that function, regardless of whether it has local
linkage or has its address taken. Not escaping should only affect
whether we make an aggressive assumption about the arguments to a
function, not whether we can track the result of it.
llvm-svn: 85795
2009-11-02 07:33:59 +00:00
47837c5182
don't mark the arguments of prototype overdefined, they will never be queried.
...
llvm-svn: 85793
2009-11-02 06:34:04 +00:00
5503328332
restore some code I removed in r85788, refactor it into
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a shared place instead of duplicating it 4 times.
llvm-svn: 85792
2009-11-02 06:28:16 +00:00
4910b656b2
remove some confused code that dates from when we had
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"multiple return values" but not "first class aggregates"
llvm-svn: 85791
2009-11-02 06:17:06 +00:00
809aee2f40
avoid redundant lookups in BBExecutable, and make it a SmallPtrSet.
...
llvm-svn: 85790
2009-11-02 06:11:23 +00:00
e77c9aa04a
Use the libanalysis 'ConstantFoldLoadFromConstPtr' function
...
instead of reinventing SCCP-specific logic. This gives us
new powers.
llvm-svn: 85789
2009-11-02 06:06:14 +00:00
f548403989
switch the main 'ValueState' map from being an std::map to being
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a DenseMap. Doing this required being aware of subtle iterator
invalidation issues, but it provides a big speedup. In a
release-asserts build, this sped up optimizing 403.gcc from
1.34s -> 0.79s (IPSCCP) and 1.11s -> 0.44s (SCCP).
This commit also conflates in a bunch of general cleanups, sorry.
llvm-svn: 85788
2009-11-02 05:55:40 +00:00
e82b087ae6
only IPSCCP incoming arguments if the function is executable, this fixes
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an assertion on the buildbot.
llvm-svn: 85784
2009-11-02 03:25:55 +00:00
9e97fbe114
add a new ValueState::getConstantInt() helper, use it to
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simplify some code.
llvm-svn: 85783
2009-11-02 03:21:36 +00:00
7ccf1a6df6
tidy up some more: remove some extraneous inline specifiers, return harder.
...
llvm-svn: 85780
2009-11-02 03:03:42 +00:00
b5a13d4c90
eliminate the SCCPSolver::getValueMapping method.
...
llvm-svn: 85778
2009-11-02 02:54:24 +00:00
c49ae9912a
fix failures introduced in r85774
...
llvm-svn: 85777
2009-11-02 02:48:17 +00:00
e405ed9651
factor duplicated code into a new DeleteInstructionInBlock
...
function, eliminate temporary (and pointless) smallvector.
llvm-svn: 85776
2009-11-02 02:47:51 +00:00
a3c39d394d
Chris used to use '...' instead of proper grammar.
...
llvm-svn: 85775
2009-11-02 02:33:50 +00:00
6df5cec72f
remove some extraneous llvmcontext stuff.
...
llvm-svn: 85774
2009-11-02 02:30:06 +00:00
efdd2bbce6
change LatticeVal to use PointerIntPair to save some space.
...
llvm-svn: 85773
2009-11-02 02:20:32 +00:00
1a8b80ed5a
teach ipsccp and ipconstprop that a blockaddress doesn't 'take the address' of a function
...
in a way that should prevent ip constprop. This allows clang/test/CodeGen/indirect-goto.c
to pass with the new indirect goto lowering.
llvm-svn: 85709
2009-11-01 06:11:53 +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
f390e04a47
Rename MallocFreeHelper as MemoryBuiltins
...
llvm-svn: 85286
2009-10-27 20:05:49 +00:00
762195bd01
Rename MallocHelper as MallocFreeHelper, since it now also identifies calls to free()
...
llvm-svn: 85181
2009-10-26 23:58:56 +00:00
de5ad42aa1
Remove FreeInst.
...
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
e297149e26
Auto-upgrade free instructions to calls to the builtin free function.
...
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
8acf2956b8
Remove AllocationInst. Since MallocInst went away, AllocaInst is the only subclass of AllocationInst, so it no longer is necessary.
...
llvm-svn: 84969
2009-10-23 21:09:37 +00:00
729d92bd74
Fix PR4313: IPSCCP was not setting the lattice value for the invoke instruction
...
when the invoke had multiple return values: it set the lattice value only on the
extractvalue.
This caused the invoke's lattice value to remain the default (undefined), and
later propagated to extractvalue's operand, which incorrectly introduces
undefined behavior.
llvm-svn: 84637
2009-10-20 15:15:09 +00:00
e525d9ddc0
Remove an unnnecessary LLVMContext argument in
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ConstantFoldLoadThroughGEPConstantExpr.
llvm-svn: 83311
2009-10-05 16:36:26 +00:00
fdd8790718
strength reduce a ton of type equality tests to check the typeid (Through
...
the new predicates I added) instead of going through a context and doing a
pointer comparison. Besides being cheaper, this allows a smart compiler
to turn the if sequence into a switch.
llvm-svn: 83297
2009-10-05 05:54:46 +00:00
f9e0c7f84b
calls to external functions are already marked overdefined, special casing
...
malloc isn't needed.
llvm-svn: 82932
2009-09-27 21:35:11 +00:00
21bd8c9fc5
Constant propagating byval pointer is safe if function is readonly.
...
llvm-svn: 82700
2009-09-24 18:33:42 +00:00
f95a450ef9
Don't constant propagate byval pointers, since they are not really pointers, but
...
rather structs passed by value.
This fixes PR5038.
llvm-svn: 82689
2009-09-24 09:47:18 +00:00
5d034499ad
Enhance transform passes so that they apply the same tranforms to malloc calls as to MallocInst.
...
Reviewed by Dan Gohman.
llvm-svn: 82300
2009-09-18 22:35:49 +00:00
2dd09dbdf7
eliminate VISIBILITY_HIDDEN from Transforms/Scalar. PR4861
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llvm-svn: 80766
2009-09-02 06:11:42 +00:00
a3e620caba
add getPointerAddressSpace() to GEP instruction, use the method
...
in a few scalar xforms to simplify things.
llvm-svn: 80506
2009-08-30 20:06:40 +00:00
b25de3ff60
eliminate the "Value" printing methods that print to a std::ostream.
...
This required converting a bunch of stuff off DOUT and other cleanups.
llvm-svn: 79819
2009-08-23 04:37:46 +00:00
8dd69f88ea
Fix debug output to include a newline after printing a Value, now
...
that Value's operator<< doesn't include one.
llvm-svn: 79240
2009-08-17 15:25:05 +00:00
55f1c09e31
Push LLVMContexts through the IntegerType APIs.
...
llvm-svn: 78948
2009-08-13 21:58:54 +00:00
5a1acd9912
Move a few more APIs back to 2.5 forms. The only remaining ones left to change back are
...
metadata related, which I'm waiting on to avoid conflicting with Devang.
llvm-svn: 77721
2009-07-31 20:28:14 +00:00
23a204d91b
Move getTrue() and getFalse() to 2.5-like APIs.
...
llvm-svn: 77685
2009-07-31 17:39:07 +00:00
b292b8ce70
Move more code back to 2.5 APIs.
...
llvm-svn: 77635
2009-07-30 23:03:37 +00:00
487375e9a2
Move ConstantExpr to 2.5 API.
...
llvm-svn: 77494
2009-07-29 18:55:55 +00:00
9813b0b025
Eliminate some uses of DOUT, cerr, and getNameStart().
...
llvm-svn: 77145
2009-07-26 07:49:05 +00:00
0dd5e1ed39
More migration to raw_ostream, the water has dried up around the iostream hole.
...
- Some clients which used DOUT have moved to DEBUG. We are deprecating the
"magic" DOUT behavior which avoided calling printing functions when the
statement was disabled. In addition to being unnecessary magic, it had the
downside of leaving code in -Asserts builds, and of hiding potentially
unnecessary computations.
llvm-svn: 77019
2009-07-25 00:23:56 +00:00
47db941fd3
Get rid of the Pass+Context magic.
...
llvm-svn: 76702
2009-07-22 00:24:57 +00:00
c37bc69e91
Rename getConstantInt{True|False} to get{True|False} at Chris' behest.
...
llvm-svn: 76598
2009-07-21 18:03:38 +00:00
20b34ac794
Move the ConstantInt uniquing table into LLVMContextImpl. This exposed a number of issues in
...
our current context-passing stuff, which is also fixed here
llvm-svn: 76089
2009-07-16 18:04:31 +00:00
fbcc663cbf
llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.
...
This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").
llvm-svn: 75640
2009-07-14 16:55:14 +00:00
542619e6d5
Move more functionality over to LLVMContext.
...
llvm-svn: 75497
2009-07-13 20:58:05 +00:00
56d0659726
assert(0) -> LLVM_UNREACHABLE.
...
Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.
llvm-svn: 75379
2009-07-11 20:10:48 +00:00
ccb29cd290
Convert more assert(0)+abort() -> LLVM_UNREACHABLE,
...
and abort()/exit() -> llvm_report_error().
llvm-svn: 75363
2009-07-11 13:10:19 +00:00
38264b1554
"LLVMContext* " --> "LLVMContext *"
...
llvm-svn: 74878
2009-07-06 23:00:19 +00:00
f1f1743b2e
Finish LLVMContext-ing lib/Analysis. This required pushing LLVMContext's through the ValueTracking API.
...
llvm-svn: 74873
2009-07-06 22:37:39 +00:00
39f00cc1d4
Thread LLVMContext through the constant folding APIs, which touches a lot of files.
...
llvm-svn: 74844
2009-07-06 18:42:36 +00:00
340288c621
Even more passes being LLVMContext'd.
...
llvm-svn: 74781
2009-07-03 19:42:02 +00:00
7ea68536b5
Don't crash on multiple return value with no obvious inserted value.
...
Fixes PR4314.
llvm-svn: 73007
2009-06-06 23:13:08 +00:00
206876e2da
Use Operands.data() instead of &Operands[0] where Operands is a potentially
...
empty SmallVector.
llvm-svn: 72512
2009-05-28 04:08:10 +00:00
1f15ca7c7a
Factorize out a concept - no functionality change.
...
llvm-svn: 67454
2009-03-21 21:27:31 +00:00
a09e0afe74
Don't load values out of global constants with weak
...
linkage: the value may be replaced with something
different at link time. (Frontends that want to
allow values to be loaded out of weak constants can
give their constants weak_odr linkage).
llvm-svn: 67407
2009-03-20 21:53:29 +00:00
6de96a1b5d
Add the private linkage.
...
llvm-svn: 62279
2009-01-15 20:18:42 +00:00
8fb9480ed2
Fix PR3325, a miscompilation of invokes by IPSCCP. Patch by Jay Foad!
...
llvm-svn: 62244
2009-01-14 21:01:16 +00:00
45f1ae028e
Fix unused variable warnings.
...
llvm-svn: 59778
2008-11-21 01:52:59 +00:00
d73806a9cc
Replace explicit loop with utility function.
...
llvm-svn: 58593
2008-11-03 03:49:14 +00:00
a79db30d28
Tidy up several unbeseeming casts from pointer to intptr_t.
...
llvm-svn: 55779
2008-09-04 17:05:41 +00:00
add44f3fb7
improve encapsulation of the BBExecutable set.
...
llvm-svn: 55271
2008-08-23 23:39:31 +00:00
65938fc69a
Switch an assortment of maps, sets and vectors to more efficient versions,
...
patch contributed by m-s!
llvm-svn: 55270
2008-08-23 23:36:38 +00:00
861bec78f8
Temporarily revert r54792. It's causing an ICE during bootstrapping.
...
llvm-svn: 54804
2008-08-14 23:05:24 +00:00
52dc07b01a
Use DenseMap. Patch by Pratik Solanki.
...
llvm-svn: 54792
2008-08-14 21:31:10 +00:00
8ded5d5884
Fix SCCP's handling of struct value loads and stores. SCCP doesn't
...
track individual leaf values in such cases, so it needs to treat
struct values as normal values in this case.
llvm-svn: 54760
2008-08-13 21:22:48 +00:00
fa1211f69b
Enable first-class aggregates support.
...
Remove the GetResultInst instruction. It is still accepted in LLVM assembly
and bitcode, where it is now auto-upgraded to ExtractValueInst. Also, remove
support for return instructions with multiple values. These are auto-upgraded
to use InsertValueInst instructions.
The IRBuilder still accepts multiple-value returns, and auto-upgrades them
to InsertValueInst instructions.
llvm-svn: 53941
2008-07-23 00:34:11 +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
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
5c207c83c6
Fix PR2358 by resolving calls with undef arguments to overdefined.
...
llvm-svn: 51535
2008-05-24 03:59:33 +00:00
fecb88249f
Allow for switch with no cases. Was causing fault
...
in gcc.dg/pr27531-1.c.
llvm-svn: 51464
2008-05-23 01:01:31 +00:00
d78c400b5b
Clean up the use of static and anonymous namespaces. This turned up
...
several things that were neither in an anonymous namespace nor static
but not intended to be global.
llvm-svn: 51017
2008-05-13 00:00:25 +00:00
47fed61526
Fix various DOUTs to not call the extremely expensive Value::getName()
...
method. DOUT statements are disabled when assertions are off, but the
side effects of getName() are still evaluated. Just call getNameSTart,
which is close enough and doesn't cause heap traffic.
llvm-svn: 50958
2008-05-11 01:55:59 +00:00
82146fa267
Simplify code by using SwitchInst::findCaseValue instead of reimplementing it.
...
llvm-svn: 50957
2008-05-10 23:56:54 +00:00
4d43d3c72c
Remove 'unwinds to' support from mainline. This patch undoes r47802 r47989
...
r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123.
llvm-svn: 50265
2008-04-25 16:53:59 +00:00
97951ac580
code restructuring, not functionality change.
...
llvm-svn: 50203
2008-04-24 00:21:50 +00:00
12f1e007f7
Don't replace multiple result of calls with undef,
...
sccp tracks getresult values, not call values in this
case.
llvm-svn: 50202
2008-04-24 00:19:54 +00:00
769203cb03
code cleanup, no functionality change.
...
llvm-svn: 50201
2008-04-24 00:16:28 +00:00
5a58a4dc6d
Rewrite multiple return value handling in SCCP. Before, the -sccp pass
...
would turn every getresult instruction into undef. This helps with
rdar://5778210
llvm-svn: 50140
2008-04-23 05:38:20 +00:00
a7dfbc0366
Be conservative if getresult operand is neither call nor invoke.
...
llvm-svn: 49430
2008-04-09 15:58:24 +00:00
e9ecc68d8f
API changes for class Use size reduction, wave 1.
...
Specifically, introduction of XXX::Create methods
for Users that have a potentially variable number of
Uses.
llvm-svn: 49277
2008-04-06 20:25:17 +00:00
9988569af8
Don't include <map> in Pass.h, which doesn't need it. This requires
...
adding <map> to many files that actually do need it.
llvm-svn: 48667
2008-03-21 23:51:57 +00:00
e418de3023
Add TODO reminder.
...
llvm-svn: 48227
2008-03-11 17:32:05 +00:00
a7a2075ab8
Initial multiple return values support.
...
llvm-svn: 48210
2008-03-11 05:46:42 +00:00
83750d9caf
SCCP also needs to be taught to follow unwind_to
...
llvm-svn: 48109
2008-03-09 09:44:38 +00:00
35e92c7bea
Not all users of a BB are Instructions any more.
...
llvm-svn: 48047
2008-03-08 07:48:41 +00:00
1bfd121321
Make Transforms to be 4.3 warnings-clean
...
llvm-svn: 47371
2008-02-20 11:26:25 +00:00
1b706dd680
Fix PR1938 by forcing the code that uses an undefined value to branch one
...
way or the other. Rewriting the code itself prevents subsequent analysis
passes from making contradictory conclusions about the code that could
cause an infeasible path to be made feasible.
llvm-svn: 46427
2008-01-28 00:32:30 +00:00
f3ebc3f3d2
Remove attribution from file headers, per discussion on llvmdev.
...
llvm-svn: 45418
2007-12-29 20:36:04 +00:00
b053b80b79
Disable null pointer folding transforms for non-generic address spaces. This should probably be a target-specific predicate based on address space. That way for targets where this isn't applicable the predicate can be optimized away.
...
llvm-svn: 45403
2007-12-29 07:56:53 +00:00
c731c97fac
Use empty() member functions when that's what's being tested for instead
...
of comparing begin() and end().
llvm-svn: 42585
2007-10-03 19:26:29 +00:00
2be91fcdd8
Place SCCPSolver also in the anonymous namespace. This
...
pacifies g++-4.2.
llvm-svn: 40089
2007-07-20 08:56:21 +00:00
2c30a37a5c
Fix PR1431
...
Test case at Transformations/SCCP/2007-05-16-InvokeCrash.ll
llvm-svn: 37185
2007-05-17 22:10:15 +00:00
e7da2d6ac3
Fix typo in comment.
...
llvm-svn: 36873
2007-05-06 13:37:16 +00:00
8c78a0bff0
Drop 'const'
...
llvm-svn: 36662
2007-05-03 01:11:54 +00:00
e95c6ad802
Use 'static const char' instead of 'static const int'.
...
Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.
llvm-svn: 36652
2007-05-02 21:39:20 +00:00
09f162ca6a
Do not use typeinfo to identify pass in pass manager.
...
llvm-svn: 36632
2007-05-01 21:15:47 +00:00
28d921d04f
fix long lines
...
llvm-svn: 36031
2007-04-14 23:32:02 +00:00
c33fd469ef
minor cleanups
...
llvm-svn: 34904
2007-03-04 04:50:21 +00:00
d84d35ba70
For PR1195:
...
Rename PackedType -> VectorType, ConstantPacked -> ConstantVector, and
PackedTyID -> VectorTyID. No functional changes.
llvm-svn: 34293
2007-02-15 02:26:10 +00:00
557ab15e71
Apply the VISIBILITY_HIDDEN field to the remaining anonymous classes in
...
the Transforms library. This reduces debug library size by 132 KB, debug
binary size by 376 KB, and reduces link time for llvm tools slightly.
llvm-svn: 33939
2007-02-05 23:32:05 +00:00
fc8190dbb7
Switch this back to using an std::map. DenseMap entries are getting invalidated
...
llvm-svn: 33799
2007-02-02 22:36:16 +00:00
37d400a83d
Remove more malloc thrashing, this speeds up IPSCCP on kimwitu another 6.7%.
...
llvm-svn: 33796
2007-02-02 21:15:06 +00:00
3e667f3e61
Convert an std::set to SmallSet, this speeds up IPSCCP 17% on kimwitu.
...
llvm-svn: 33794
2007-02-02 20:57:39 +00:00
0e7ec675da
eliminate a malloc/free for (almost) every GEP processed. This speeds up
...
IPSCCP 3.3% on kimwitu.
llvm-svn: 33793
2007-02-02 20:51:48 +00:00
067d607e0e
switch hash_map's over to DenseMap in SCCP. This speeds up SCCP by 30% in
...
a release-assert build on kimwitu++.
llvm-svn: 33792
2007-02-02 20:38:30 +00:00
2341c22ec7
Changes to support making the shift instructions be true BinaryOperators.
...
This feature is needed in order to support shifts of more than 255 bits
on large integer types. This changes the syntax for llvm assembly to
make shl, ashr and lshr instructions look like a binary operator:
shl i32 %X, 1
instead of
shl i32 %X, i8 1
Additionally, this should help a few passes perform additional optimizations.
llvm-svn: 33776
2007-02-02 02:16:23 +00:00
024f4ab383
Adjust #includes to match movement of constant folding code from transformutils to libanalysis.
...
llvm-svn: 33680
2007-01-30 23:46:24 +00:00
0d74d3c09b
use smallvector instead of vector to make constant folding a bit more efficient
...
llvm-svn: 33672
2007-01-30 23:15:19 +00:00
5301e7c605
For PR1136: Rename GlobalVariable::isExternal as isDeclaration to avoid
...
confusion with external linkage types.
llvm-svn: 33663
2007-01-30 20:08:39 +00:00
ff7434a526
Fix a minor bug handling constant exprs, introduced by a recent patch.
...
llvm-svn: 33175
2007-01-13 00:42:58 +00:00
7a9c62baa6
For PR1064:
...
Implement the arbitrary bit-width integer feature. The feature allows
integers of any bitwidth (up to 64) to be defined instead of just 1, 8,
16, 32, and 64 bit integers.
This change does several things:
1. Introduces a new Derived Type, IntegerType, to represent the number of
bits in an integer. The Type classes SubclassData field is used to
store the number of bits. This allows 2^23 bits in an integer type.
2. Removes the five integer Type::TypeID values for the 1, 8, 16, 32 and
64-bit integers. These are replaced with just IntegerType which is not
a primitive any more.
3. Adjust the rest of LLVM to account for this change.
Note that while this incremental change lays the foundation for arbitrary
bit-width integers, LLVM has not yet been converted to actually deal with
them in any significant way. Most optimization passes, for example, will
still only deal with the byte-width integer types. Future increments
will rectify this situation.
llvm-svn: 33113
2007-01-12 07:05:14 +00:00
cddc9dfe97
Implement review feedback for the ConstantBool->ConstantInt merge. Chris
...
recommended that getBoolValue be replaced with getZExtValue and that
get(bool) be replaced by get(const Type*, uint64_t). This implements
those changes.
llvm-svn: 33110
2007-01-12 04:24:46 +00:00
542964f55b
Rename BoolTy as Int1Ty. Patch by Sheng Zhou.
...
llvm-svn: 33076
2007-01-11 18:21:29 +00:00
75b871fb1e
For PR1043:
...
Merge ConstantIntegral and ConstantBool into ConstantInt.
Remove ConstantIntegral and ConstantBool from LLVM.
llvm-svn: 33073
2007-01-11 12:24:14 +00:00
806adafd95
Enable a couple xforms for packed vectors (undef | v) -> -1 for packed.
...
llvm-svn: 32858
2007-01-04 02:12:40 +00:00
c4ba9c161b
Vectors are not supported by ConstantInt::getAllOnesValue.
...
llvm-svn: 32827
2007-01-03 00:11:03 +00:00
e8a74ee5ea
Fix a typo.
...
llvm-svn: 32803
2006-12-31 22:26:06 +00:00
266e42b312
For PR950:
...
This patch removes the SetCC instructions and replaces them with the ICmp
and FCmp instructions. The SetCondInst instruction has been removed and
been replaced with ICmpInst and FCmpInst.
llvm-svn: 32751
2006-12-23 06:05:41 +00:00
1847f6ddbd
handle undef values much more carefully: generalize the resolveundefbranches
...
code to handle instructions as well, so that we properly fold things like
X & undef -> 0.
This fixes Transforms/SCCP/2006-12-19-UndefBug.ll
llvm-svn: 32715
2006-12-20 06:21:33 +00:00
79a42ac941
Switch over Transforms/Scalar to use the STATISTIC macro. For each statistic
...
converted, we lose a static initializer. This also allows GCC to emit warnings
about unused statistics.
llvm-svn: 32690
2006-12-19 21:40:18 +00:00
b341b0861d
Change inferred getCast into specific getCast. Passes all tests.
...
llvm-svn: 32469
2006-12-12 05:05:00 +00:00
f3baad3ee1
Changed llvm_ostream et all to OStream. llvm_cerr, llvm_cout, llvm_null, are
...
now cerr, cout, and NullStream resp.
llvm-svn: 32298
2006-12-07 01:30:32 +00:00
700b873130
Detemplatize the Statistic class. The only type it is instantiated with
...
is 'unsigned'.
llvm-svn: 32279
2006-12-06 17:46:33 +00:00
21efc73161
SCCP does not handle Packed Type properly. Disable Packed Type handling
...
for now.
llvm-svn: 32208
2006-12-04 23:54:59 +00:00
5dbf43c983
Removed #include <iostream> and replaced with llvm_* streams.
...
llvm-svn: 31923
2006-11-26 09:46:52 +00:00
de46e48420
For PR786:
...
Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.
llvm-svn: 31380
2006-11-02 20:25:50 +00:00
fe7b6ef346
Handle fallout from the recent branch-on-undef changes. This fixes
...
Prolangs-C/agrep and SCCP/2006-10-23-IPSCCP-Crash.ll
llvm-svn: 31132
2006-10-23 18:57:02 +00:00
af17096dcf
3 Changes:
...
1. Better document what is going on here.
2. Only hack on one branch per iteration, making the results less conservative.
3. Handle the problematic case by marking edges executable instead of by
playing with value lattice states. This is far less pessimistic, and fixes
SCCP/ipsccp-gvar.ll.
llvm-svn: 31106
2006-10-22 05:59:17 +00:00
319c86fd38
Fix an ugly problem in SCCP. This fixes Benchmarks/Misc-C++/mandel-text.cpp
...
llvm-svn: 31073
2006-10-20 20:19:08 +00:00
6ab03f6a08
Eliminate ConstantBool::True and ConstantBool::False. Instead, provide
...
ConstantBool::getTrue() and ConstantBool::getFalse().
llvm-svn: 30665
2006-09-28 23:35:22 +00:00
c2d3d3112e
eliminate RegisterOpt. It does the same thing as RegisterPass.
...
llvm-svn: 29925
2006-08-27 22:42:52 +00:00
17bd60588c
Add supprot for shufflevector
...
llvm-svn: 27513
2006-04-08 01:19:12 +00:00
06a0ed1ee0
Implement some more interesting select sccp cases. This implements:
...
test/Regression/Transforms/SCCP/select.ll
llvm-svn: 26049
2006-02-08 02:38:11 +00:00
c597b8a55e
Make iostream #inclusion explicit
...
llvm-svn: 25514
2006-01-22 23:32:06 +00:00
6dce25019d
Lowerpacked and SCCP support for the insertelement operation.
...
llvm-svn: 25406
2006-01-17 20:06:55 +00:00
bd518d153b
Added lower packed support for the extractelement operation.
...
llvm-svn: 25180
2006-01-10 19:05:05 +00:00
02ae21e1e0
Eliminate GetGEPGlobalInitializer in favor of the more powerful
...
ConstantFoldLoadThroughGEPConstantExpr function in the utils lib.
llvm-svn: 23446
2005-09-26 05:28:52 +00:00
82639853c0
Eliminate tabs and trailing spaces
...
llvm-svn: 21480
2005-04-23 21:38:35 +00:00
b1c9317bb4
Remove trailing whitespace
...
llvm-svn: 21427
2005-04-21 23:48:37 +00:00
8cb10a1775
Wrap some long lines.
...
Make IPSCCP strip off dead constant exprs that are using functions, making
them appear as though their address is taken. This allows us to propagate
some more pool descriptors, lowering the overhead of pool alloc.
llvm-svn: 21363
2005-04-19 19:16:19 +00:00
531f9e92d4
This mega patch converts us from using Function::a{iterator|begin|end} to
...
using Function::arg_{iterator|begin|end}. Likewise Module::g* -> Module::global_*.
This patch is contributed by Gabor Greif, thanks!
llvm-svn: 20597
2005-03-15 04:54:21 +00:00
ce274ce93d
Silence warnings
...
llvm-svn: 19379
2005-01-08 19:34:41 +00:00
cbc0161d1f
If one side of and/or is known to be 0/-1, it doesn't matter
...
if the other side is overdefined.
This allows us to fold conditions like: if (X < Y || Y > Z) in some cases.
llvm-svn: 18807
2004-12-11 23:15:19 +00:00
2f687fd9d6
Two bug fixes:
...
1. Actually increment the Statistic for the GV elim optzn
2. When resolving undef branches, only resolve branches in executable blocks,
avoiding marking a bunch of completely dead blocks live. This has a big
impact on the quality of the generated code.
With this patch, we positively rip up vortex, compiling Ut_MoveBytes to a
single memcpy call. In vortex we get this:
12 ipsccp - Number of globals found to be constant
986 ipsccp - Number of arguments constant propagated
1378 ipsccp - Number of basic blocks unreachable
8919 ipsccp - Number of instructions removed
llvm-svn: 18796
2004-12-11 06:05:53 +00:00
8525ebe465
Do not delete the entry block to a function.
...
llvm-svn: 18795
2004-12-11 05:32:19 +00:00
91dbae6fee
Implement Transforms/SCCP/ipsccp-gvar.ll, by tracking values stored to
...
non-address-taken global variables.
llvm-svn: 18790
2004-12-11 05:15:59 +00:00
99e1295645
Fix a bug where we could delete dead invoke instructions with uses.
...
In functions where we fully constant prop the return value, replace all
ret instructions with 'ret undef'.
llvm-svn: 18786
2004-12-11 02:53:57 +00:00
bae4b64553
Implement SCCP/ipsccp-conditional.ll, by totally deleting dead blocks.
...
llvm-svn: 18781
2004-12-10 22:29:08 +00:00
7285f43836
Fix SCCP/2004-12-10-UndefBranchBug.ll
...
llvm-svn: 18776
2004-12-10 20:41:50 +00:00
b439464c61
This is the initial implementation of IPSCCP, as requested by Brian.
...
This implements SCCP/ipsccp-basic.ll, rips apart Olden/mst (as described in
PR415), and does other nice things.
There is still more to come with this, but it's a start.
llvm-svn: 18752
2004-12-10 08:02:06 +00:00
27af257ea0
Do not delete dead invoke instructions!
...
llvm-svn: 17897
2004-11-16 16:32:28 +00:00
1890f94413
Minor cleanups. There is no reason for SCCP to derive from instvisitor anymore.
...
llvm-svn: 17825
2004-11-15 07:15:04 +00:00
9a038a3a5e
Count more accurately
...
llvm-svn: 17824
2004-11-15 07:02:42 +00:00
d18c16b842
Two minor improvements:
...
1. Speedup getValueState by having it not consider Arguments. It's better
to just add them before we start SCCP'ing.
2. SCCP can delete the contents of dead blocks. No really, it's ok! This
reduces the size of the IR for subsequent passes, even though
simplifycfg would do the same job. In practice, simplifycfg does not
run until much later than sccp in gccas
llvm-svn: 17820
2004-11-15 05:45:33 +00:00
4f0316229c
rename InstValue to LatticeValue, as it holds for more than instructions.
...
llvm-svn: 17818
2004-11-15 05:03:30 +00:00
074be1f6e4
Substantially refactor the SCCP class into an SCCP pass and an SCCPSolver
...
class. The only changes are minor:
* Do not try to SCCP instructions that return void in the rewrite loop.
This is silly and fool hardy, wasting a map lookup and adding an entry
to the map which is never used.
* If we decide something has an undefined value, rewrite it to undef,
potentially leading to further simplications.
llvm-svn: 17816
2004-11-15 04:44:20 +00:00
7dfc2d29ac
Convert 'struct' to 'class' in various places to adhere to the coding standards
...
and work better with VC++. Patch contributed by Morten Ofstad!
llvm-svn: 17281
2004-10-27 16:14:51 +00:00
646354bae1
Handle undef values as undefined on the constant lattice
...
ignore unreachable instructions
llvm-svn: 17044
2004-10-16 18:09:41 +00:00
5c91c8f18b
Use DEBUG instead of DebugFlag directly, as DebugFlag does not respect
...
-debug-only!
llvm-svn: 16868
2004-10-09 19:30:36 +00:00
3e86084641
Prototype these functions more accurately
...
llvm-svn: 16432
2004-09-20 04:43:15 +00:00
6614946443
Convert code to compile with vc7.1.
...
Patch contributed by Paolo Invernizzi. Thanks Paolo!
llvm-svn: 16368
2004-09-15 17:06:42 +00:00
7c16caa336
Changes For Bug 352
...
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.
llvm-svn: 16137
2004-09-01 22:55:40 +00:00
832437255d
Stop using getValues().
...
llvm-svn: 15487
2004-08-04 08:44:43 +00:00
f0a5bcaae4
Delete a redundant if branch.
...
llvm-svn: 14967
2004-07-18 08:34:52 +00:00
c5afc9512b
bug 122:
...
- Replace ConstantPointerRef usage with GlobalValue usage
- Correct isa<Constant> for GlobalValue subclass
llvm-svn: 14947
2004-07-18 00:31:05 +00:00
d79334df33
This patch was contributed by Daniel Berlin!
...
Speed up SCCP substantially by processing overdefined values quickly. This
patch speeds up SCCP by about 30-40% on large testcases.
llvm-svn: 14861
2004-07-15 23:36:43 +00:00
9a63520b1a
Fixes working towards PR341
...
llvm-svn: 14839
2004-07-15 01:50:47 +00:00
ff9362a8da
Add SCCP support for constant folding calls, implementing:
...
test/Regression/Transforms/SCCP/calltest.ll
llvm-svn: 12921
2004-04-13 19:43:54 +00:00
69193f93b6
Support getelementptr instructions which use uint's to index into structure
...
types and can have arbitrary 32- and 64-bit integer types indexing into
sequential types.
llvm-svn: 12653
2004-04-05 01:30:19 +00:00
7a7b114871
Do not try to optimize PHI nodes with incredibly high degree. This reduces SCCP
...
time from 615s to 1.49s on a large testcase that has a gigantic switch statement
that all of the blocks in the function go to (an intepreter).
llvm-svn: 12442
2004-03-16 19:49:59 +00:00
59db22dcd4
Add sccp support for select instructions
...
llvm-svn: 12318
2004-03-12 05:52:44 +00:00
538fee7aa2
Since 'load null' is undefined, we can make it do whatever we want. Returning
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a zero value is the most likely way to cause further simplification, so we do it.
llvm-svn: 12197
2004-03-07 22:16:24 +00:00
76b2ff4ded
Adjustments to support the new ConstantAggregateZero class
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llvm-svn: 11474
2004-02-15 05:55:15 +00:00
1b7d4d7b63
Don't use ConstantExpr::getShift anymore
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llvm-svn: 10791
2004-01-12 19:08:43 +00:00
0fe5b32c01
Use constantexprs for casts. Eliminate use of the ConstantHandling interfaces
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llvm-svn: 10779
2004-01-12 17:43:40 +00:00
fe992d4332
Fix fairly severe bug in my last checking where we treated all unfoldable
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constants as being "true" when evaluating branches. This was introduced
because we now create constantexprs for the constants instead of failing the
fold.
llvm-svn: 10778
2004-01-12 17:40:36 +00:00
49f74522ec
* Implement minor performance optimization for the getelementptr case
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* Implement SCCP of load instructions, implementing Transforms/SCCP/loadtest.ll
This allows us to fold expressions like "foo"[2], even if the pointer is only
a conditional constant.
llvm-svn: 10767
2004-01-12 04:29:41 +00:00
05fe6847a8
Implement SCCP/phitest.ll
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llvm-svn: 10763
2004-01-12 03:57:30 +00:00
49525f8cf4
Finegrainify namespacification
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llvm-svn: 10725
2004-01-09 06:02:20 +00:00
960707c335
Put all LLVM code into the llvm namespace, as per bug 109.
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llvm-svn: 9903
2003-11-11 22:41:34 +00:00
482202a601
Added LLVM project notice to the top of every C++ source file.
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Header files will be on the way.
llvm-svn: 9298
2003-10-20 19:43:21 +00:00
f0fc9be634
ADd support for the new varargs instructions
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llvm-svn: 9225
2003-10-18 05:56:52 +00:00
8b2bd4ed47
Fix spelling.
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llvm-svn: 9027
2003-10-10 17:57:28 +00:00
35e56e7372
Update comment
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llvm-svn: 8965
2003-10-08 16:56:11 +00:00
0bbbe5d4c8
Use a set to keep track of which edges have been noticed as executable already
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to avoid reprocessing PHI nodes needlessly. This speeds up the big bad PHI
testcase 43%: from 104.9826 to 73.5157s
llvm-svn: 8964
2003-10-08 16:55:34 +00:00
7324f7cd03
Minor fixes here and there
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llvm-svn: 8963
2003-10-08 16:21:03 +00:00
71ac22ffb5
Avoid building data structures we don't really need. This improves the runtime
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of a test that Bill Wendling sent me from 228.5s to 105s. Obviously there is
more improvement to be had, but this is a nice speedup which should be "felt"
by many programs.
llvm-svn: 8962
2003-10-08 15:47:41 +00:00
9c58cf6d03
Add support for the unwind instruction
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llvm-svn: 8408
2003-09-08 18:54:55 +00:00
df741d62de
Fix bug: SCCP/2003-08-26-InvokeHandling.ll
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llvm-svn: 8152
2003-08-27 01:08:35 +00:00
7eb05a170a
Spell `necessary' correctly.
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llvm-svn: 7944
2003-08-18 14:43:39 +00:00
8abcd56c74
DEBUG got moved to Support/Debug.h
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llvm-svn: 7492
2003-08-01 22:15:03 +00:00
Eli Friedman