Eli Friedman
98daf610fb
Remove function left over from other jump threading cleanup.
...
llvm-svn: 86289
2009-11-06 21:24:57 +00:00
Chris Lattner
93a3e74486
Fix a problem discovered on self host.
...
llvm-svn: 86278
2009-11-06 19:21:48 +00:00
Chris Lattner
17dc911808
remove more code subsumed by r86264
...
llvm-svn: 86270
2009-11-06 18:24:32 +00:00
Devang Patel
1a557eacb8
Tolerate invalid derived type.
...
llvm-svn: 86269
2009-11-06 18:24:05 +00:00
Chris Lattner
8b677402d3
eliminate some more code subsumed by r86264
...
llvm-svn: 86267
2009-11-06 18:22:54 +00:00
Chris Lattner
79534a05af
remove now redundant code, r86264 handles this case.
...
llvm-svn: 86266
2009-11-06 18:20:58 +00:00
Chris Lattner
b688868418
Extend jump threading to support much more general threading
...
predicates. This allows us to jump thread things like:
_ZN12StringSwitchI5ColorE4CaseILj7EEERS1_RAT__KcRKS0_.exit119:
%tmp1.i24166 = phi i8 [ 1, %bb5.i117 ], [ %tmp1.i24165, %_Z....exit ], [ %tmp1.i24165, %bb4.i114 ]
%toBoolnot.i87 = icmp eq i8 %tmp1.i24166, 0 ; <i1> [#uses=1]
%tmp4.i90 = icmp eq i32 %tmp2.i, 6 ; <i1> [#uses=1]
%or.cond173 = and i1 %toBoolnot.i87, %tmp4.i90 ; <i1> [#uses=1]
br i1 %or.cond173, label %bb4.i96, label %_ZN12...
Where it is "obvious" that when coming from %bb5.i117 that the 'and' is always
false. This triggers a surprisingly high number of times in the testsuite,
and gets us closer to generating good code for doug's strswitch testcase.
This also make a bunch of other code in jump threading redundant, I'll rip
out in the next patch. This survived an enable-checking llvm-gcc bootstrap.
llvm-svn: 86264
2009-11-06 18:15:14 +00:00
Dan Gohman
aadf548295
Use WriteAsOperand to print GlobalAddress MachineOperands. This
...
prints them with the leading '@'.
llvm-svn: 86261
2009-11-06 18:03:10 +00:00
Devang Patel
0d1f6a9d0e
Do not bother to emit debug info for nameless global variable.
...
llvm-svn: 86259
2009-11-06 17:58:12 +00:00
Daniel Dunbar
4daaf9d3f4
Pass StringRef by value.
...
llvm-svn: 86251
2009-11-06 10:58:06 +00:00
Chris Lattner
6a31c1141c
remove some more Context arguments.
...
llvm-svn: 86235
2009-11-06 05:59:53 +00:00
Chris Lattner
903ae55e1c
remove a bunch of extraneous LLVMContext arguments
...
from various APIs, addressing PR5325.
llvm-svn: 86231
2009-11-06 04:27:31 +00:00
Victor Hernandez
a5a12cd62e
Revert r86077 because it caused crashes in 179.art and 175.vpr on ARM
...
llvm-svn: 86213
2009-11-06 01:33:24 +00:00
Devang Patel
5035033346
Do not try to emit debug info entry for dead global variable.
...
llvm-svn: 86212
2009-11-06 01:30:04 +00:00
Dan Gohman
ada358e6a2
Factor out the printing of the leading tab into printInlineAsm.
...
llvm-svn: 86199
2009-11-06 00:04:54 +00:00
Dan Gohman
1a8616a0d7
Use SUBREG_TO_REG instead of INSERT_SUBREG to model x86-64's
...
implicit zero-extend.
llvm-svn: 86196
2009-11-05 23:53:08 +00:00
Dan Gohman
54aa68b309
Teach LSR to avoid calling SplitCriticalEdge on edges with indirectbr.
...
llvm-svn: 86193
2009-11-05 23:34:59 +00:00
Dan Gohman
d159b46665
Fix the label name generation for address-taken labels to avoid potential
...
problems with name collisions.
llvm-svn: 86189
2009-11-05 23:14:35 +00:00
Lang Hames
3af601069a
Added support for renumbering existing index list elements. Removed some junk from the initial numbering code in runOnMachineFunction.
...
llvm-svn: 86184
2009-11-05 22:20:57 +00:00
Dan Gohman
e93b2dbc0f
Avoid calling getUniqueExitBlocks from within LoopSimplify, as it depends
...
on loops having dedicated exits, which LoopSimplify can no longer always
guarantee.
llvm-svn: 86181
2009-11-05 21:48:32 +00:00
Dan Gohman
6a3eefbfeb
LoopDeletion depends on loops having dedicated exits.
...
llvm-svn: 86180
2009-11-05 21:47:04 +00:00
Dan Gohman
f65735f0c5
The introduction of indirectbr meant the introduction of
...
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
Dan Gohman
3c155aa3cd
Update various Loop optimization passes to cope with the possibility that
...
LoopSimplify form may not be available.
llvm-svn: 86175
2009-11-05 21:11:53 +00:00
David Goodwin
8a18560a67
Fix bug in aggressive antidep breaking; liveness was not updated correctly for regions that do not have antidep candidates.
...
llvm-svn: 86172
2009-11-05 21:06:09 +00:00
Dan Gohman
cf44615b89
Teach LoopUnroll how to bail if LoopSimplify can't give it what it needs.
...
llvm-svn: 86164
2009-11-05 19:44:06 +00:00
Dan Gohman
0c3b2f8419
Call getAnalysis<LoopInfo> the normal way, instead of asking passed-in
...
LoopPassManager for it.
llvm-svn: 86163
2009-11-05 19:43:25 +00:00
Dan Gohman
770613e3be
Fix IVUsers to avoid assuming that the loop has a unique backedge.
...
llvm-svn: 86161
2009-11-05 19:41:37 +00:00
Dan Gohman
a25cd27300
Delete an unused member variable.
...
llvm-svn: 86160
2009-11-05 19:33:15 +00:00
Dan Gohman
6f6862e558
Factor out the predicate code for loopsimplify form exit blocks into
...
a separate helper function.
llvm-svn: 86159
2009-11-05 19:21:41 +00:00
Dan Gohman
e564d875c8
Avoid printing a redundant space in SDNode->dump().
...
llvm-svn: 86151
2009-11-05 18:49:11 +00:00
Dan Gohman
eec0f1c506
Remove uninteresting and confusing debug output.
...
llvm-svn: 86149
2009-11-05 18:47:09 +00:00
Dan Gohman
7e9c38c364
Add an assertion to catch indirectbr in SplitBlockPredecessors. This
...
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
Chris Lattner
7f61fbfcca
add a note from PR5313
...
llvm-svn: 86146
2009-11-05 18:19:19 +00:00
Benjamin Kramer
a38019a3de
Teach SimplifyLibCalls to fold memcmp calls with constant arguments.
...
llvm-svn: 86141
2009-11-05 17:44:22 +00:00
Benjamin Kramer
f10e3edefb
Do map insert+find in one step. TODO -= 2.
...
llvm-svn: 86133
2009-11-05 14:33:27 +00:00
Benjamin Kramer
ac39e59ede
Path::createDirectoryOnDisk should ignore existing directories on win32 too.
...
llvm-svn: 86132
2009-11-05 14:32:40 +00:00
Mon P Wang
0669a8df22
Reintroduce support for overloading target intrinsics
...
llvm-svn: 86114
2009-11-05 03:19:08 +00:00
David Goodwin
66b5886123
Replace std::map.at() with std::map[].
...
llvm-svn: 86102
2009-11-05 01:45:50 +00:00
David Goodwin
5ddf009b51
Break anti-dependencies using free registers in a round-robin manner to avoid introducing new anti-dependencies.
...
llvm-svn: 86098
2009-11-05 01:19:35 +00:00
Evan Cheng
52dedf7dfe
Now that code placement optimization pass is run for JIT, make sure it's before pre-emit passes.
...
llvm-svn: 86092
2009-11-05 01:16:59 +00:00
Devang Patel
02635b0c7a
Use WeakVH while storing metadata in containers.
...
This fixes PR5393.
llvm-svn: 86091
2009-11-05 01:13:02 +00:00
Evan Cheng
3a05d1d9bb
Code refactoring.
...
llvm-svn: 86085
2009-11-05 00:51:13 +00:00
David Goodwin
442fe1bbf8
Correctly add chain dependencies around calls and unknown-side-effect instructions.
...
llvm-svn: 86080
2009-11-05 00:16:44 +00:00
Victor Hernandez
21ec158c23
Update CreateMalloc so that its callers specify the size to allocate:
...
MallocInst-autoupgrade users use non-TargetData-computed allocation sizes.
Optimization uses use TargetData to compute the allocation size.
Now that malloc calls can have constant sizes, update isArrayMallocHelper() to use TargetData to determine the size of the malloced type and the size of malloced arrays.
Extend getMallocType() to support malloc calls that have non-bitcast uses.
Update OptimizeGlobalAddressOfMalloc() to optimize malloc calls that have non-bitcast uses. The bitcast use of a malloc call has to be treated specially here because the uses of the bitcast need to be replaced and the bitcast needs to be erased (just like the malloc call) for OptimizeGlobalAddressOfMalloc() to work correctly.
Update PerformHeapAllocSRoA() to optimize malloc calls that have non-bitcast uses. The bitcast use of the malloc is not handled specially here because ReplaceUsesOfMallocWithGlobal replaces through the bitcast use.
Update OptimizeOnceStoredGlobal() to not care about the malloc calls' bitcast use.
Update all globalopt malloc tests to not rely on autoupgraded-MallocInsts, but instead use explicit malloc calls with correct allocation sizes.
llvm-svn: 86077
2009-11-05 00:03:03 +00:00
Devang Patel
c69c29bc4b
While calculating original type size for a derived type, handle type variants encoded as DIDerivedType appropriately.
...
This improves bitfield support.
llvm-svn: 86073
2009-11-04 23:48:00 +00:00
Jim Grosbach
ef37391033
Grammar.
...
llvm-svn: 86068
2009-11-04 23:20:40 +00:00
Chris Lattner
a003aee613
improve DSE when TargetData is not around, based on work by
...
Hans Wennborg!
llvm-svn: 86067
2009-11-04 23:20:12 +00:00
Jim Grosbach
2867641b64
Now that the memory leak from McCat/08-main has been fixed (86056), re-enable
...
aggressive testing of dynamic stack alignment.
Note that this is off by default, and enabled for LLCBETA nightly results.
llvm-svn: 86064
2009-11-04 23:11:07 +00:00
Jim Grosbach
c0cabc9119
If a function has no stack frame at all, dynamic realignment isn't necessary.
...
llvm-svn: 86057
2009-11-04 22:41:51 +00:00
Jim Grosbach
c8a01556f4
dynamic stack realignment necessitates scanning the floating point callee-
...
saved instructions even if no stack adjustment for those saves is needed.
llvm-svn: 86056
2009-11-04 22:41:00 +00:00
Devang Patel
799b8cc191
Fix DW_AT_data_member_location for bit-fields. It points to the location of annonymous field that covers respective field.
...
llvm-svn: 86054
2009-11-04 22:06:12 +00:00
Bob Wilson
25738f9e79
Add PowerPC codegen for indirect branches.
...
llvm-svn: 86050
2009-11-04 21:31:18 +00:00
Lang Hames
2b16464904
Handle empty/tombstone keys for LiveIndex more cleanly. Check for index sanity when constructing index list entries.
...
llvm-svn: 86049
2009-11-04 21:24:15 +00:00
Duncan Sands
7d20275318
A value is only assigned to errno if NumRead equals -1, so do
...
not reason based on errno if NumRead has a different value.
llvm-svn: 86046
2009-11-04 20:50:23 +00:00
Eric Christopher
f20f6980cb
Add some options to disable various code gen optimizations.
...
llvm-svn: 86044
2009-11-04 19:57:50 +00:00
Devang Patel
773993746e
Array element size does not match array size but array is not a bitfield.
...
llvm-svn: 86043
2009-11-04 19:37:40 +00:00
Jakob Stoklund Olesen
f775e222e0
Print out an informative comment for KILL instructions.
...
The KILL pseudo-instruction may survive to the asm printer pass, just like the IMPLICIT_DEF. Print the KILL as a comment instead of just leaving a blank line in the output.
With -asm-verbose=0, a blank line is printed, like IMPLICIT?DEF.
llvm-svn: 86041
2009-11-04 19:24:37 +00:00
Chris Lattner
4864198071
Fix an iterator invalidation bug that happens when a hashtable
...
resizes in IPSCCP. This fixes PR5394.
llvm-svn: 86036
2009-11-04 18:57:42 +00:00
Evan Cheng
801415706c
RangeIsDefinedByCopyFromReg() should check for subreg_to_reg, insert_subreg,
...
and extract_subreg as a "copy" that defines a valno.
Also fixes a typo. These two issues prevent a simple subreg coalescing from
happening before.
llvm-svn: 86022
2009-11-04 08:33:14 +00:00
Chris Lattner
d8ab8fbe9f
move two functions up higher in the file. Delete a useless argument
...
to EmitGEPOffset.
Implement some new transforms for optimizing
subtracts of two pointer to ints into the same vector. This happens
for C++ iterator idioms for example, stringmap takes a const char*
that points to the start and end of a string. Once inlined, we want
the pointer difference to turn back into a length.
This is rdar://7362831.
llvm-svn: 86021
2009-11-04 08:05:20 +00:00
Evan Cheng
22121f4c69
The .n suffix must go after the predicate.
...
llvm-svn: 86019
2009-11-04 07:38:48 +00:00
Douglas Gregor
4cd9c97c74
Fix CMake makefiles
...
llvm-svn: 85994
2009-11-04 01:32:06 +00:00
Evan Cheng
1a06b12330
Use ldr.n to workaround a darwin assembler bug.
...
llvm-svn: 85980
2009-11-04 00:00:39 +00:00
Lang Hames
deed780bc6
The Indexes Patch.
...
This introduces a new pass, SlotIndexes, which is responsible for numbering
instructions for register allocation (and other clients). SlotIndexes numbering
is designed to match the existing scheme, so this patch should not cause any
changes in the generated code.
For consistency, and to avoid naming confusion, LiveIndex has been renamed
SlotIndex.
The processImplicitDefs method of the LiveIntervals analysis has been moved
into its own pass so that it can be run prior to SlotIndexes. This was
necessary to match the existing numbering scheme.
llvm-svn: 85979
2009-11-03 23:52:08 +00:00
Bob Wilson
8209e942a6
Fix branch folding bug for indirect branches: for a block containing only
...
an unconditional branch (possibly from tail merging), this code is
trying to redirect all of its predecessors to go directly to the branch
target, but that isn't feasible for indirect branches. The other
predecessors (that don't end with indirect branches) could theoretically
still be handled, but that is not easily done right now.
The AnalyzeBranch interface doesn't currently let us distinguish jump table
branches from indirect branches, and this code is currently handling
jump tables. To avoid punting on address-taken blocks, we would have to give
up handling jump tables. That seems like a bad tradeoff.
llvm-svn: 85975
2009-11-03 23:44:31 +00:00
Chris Lattner
b634c6cdb5
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
Evan Cheng
b50510c510
Fix t2Int_eh_sjlj_setjmp. Immediate form of orr is a 32-bit instruction. So it should be 22 bytes instead of 20 bytes long.
...
llvm-svn: 85965
2009-11-03 23:13:34 +00:00
Evan Cheng
caab17007b
fconsts / fconstd immediate should be proceeded with #.
...
llvm-svn: 85952
2009-11-03 21:59:33 +00:00
Evan Cheng
d783406059
Re-apply 85799. It turns out my code isn't buggy.
...
llvm-svn: 85947
2009-11-03 21:40:02 +00:00
David Goodwin
629a685f05
Do a scheduling pass ignoring anti-dependencies to identify candidate registers that should be renamed.
...
llvm-svn: 85939
2009-11-03 20:57:50 +00:00
Chris Lattner
10c341e8fa
finish half thunk thought
...
llvm-svn: 85937
2009-11-03 20:52:57 +00:00
Victor Hernandez
628b65ea6e
Changes requested (avoid getFunction(), avoid Type creation via isVoidTy(), and avoid redundant isFreeCall cases) in feedback to r85176
...
llvm-svn: 85936
2009-11-03 20:39:35 +00:00
David Goodwin
9f1cf41932
<rdar://problem/7352605>. When building schedule graph use mayAlias information to avoid chaining loads/stores of spill slots with non-aliased memory ops.
...
llvm-svn: 85934
2009-11-03 20:15:00 +00:00
Victor Hernandez
046375ac3f
Changes (* location in pointer variables, avoiding include, and using APInt::getLimitedValue) based on feedback to r85814
...
llvm-svn: 85933
2009-11-03 20:02:35 +00:00
Chris Lattner
2aa5962af6
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
Duncan Sands
d4b8f9ee93
Make this code more robust by not thinking we are making progress
...
if zero bytes were read.
llvm-svn: 85922
2009-11-03 19:10:22 +00:00
Devang Patel
5b0aaf3a1f
Parse debug info attached with insertvalue and extractvalue instructions.
...
llvm-svn: 85921
2009-11-03 19:06:07 +00:00
Anton Korobeynikov
de7cbab064
Move subtarget check upper for NEON reg-reg fixup pass.
...
llvm-svn: 85914
2009-11-03 18:46:11 +00:00
Devang Patel
7cb7017106
Ignore unnamed variables.
...
llvm-svn: 85909
2009-11-03 18:30:27 +00:00
Chris Lattner
bfe755788f
fix a subtle bug I introduced when refactoring SCCP. Testcase
...
to follow.
llvm-svn: 85903
2009-11-03 16:50:11 +00:00
Benjamin Kramer
c6b59b889b
Eliminate some temporaries.
...
llvm-svn: 85896
2009-11-03 12:52:50 +00:00
Evan Cheng
1d4575274c
Trim unnecessary include.
...
llvm-svn: 85878
2009-11-03 07:08:08 +00:00
Bob Wilson
97331f70ca
For Thumb indirect branches, use "mov pc, reg" which does not switch
...
between ARM/Thumb modes and does not require the low bit of the target
address to be set for Thumb.
llvm-svn: 85874
2009-11-03 06:29:56 +00:00
Jeffrey Yasskin
bc6f9d7e70
Fix a funky "declared with greater visibility than the type of its field"
...
warning from gcc by removing VISIBILITY_HIDDEN attributes.
llvm-svn: 85873
2009-11-03 06:29:36 +00:00
Evan Cheng
ed22395c61
Fix PR5367. QPR_8 is the super regclass of DPR_8 and SPR_8.
...
llvm-svn: 85871
2009-11-03 05:52:54 +00:00
Evan Cheng
2807af42c0
Clean up copyRegToReg.
...
llvm-svn: 85870
2009-11-03 05:51:39 +00:00
Evan Cheng
9bedf1b587
Add QPR_8 as a superreg class of SPR_8 and DPR_8.
...
llvm-svn: 85869
2009-11-03 05:50:57 +00:00
Chris Lattner
7585c1f162
remove unneeded checks of isFreeCall
...
llvm-svn: 85866
2009-11-03 05:35:19 +00:00
Chris Lattner
cbd903cd12
remove a check of isFreeCall: the argument to free is already nocapture so the generic call code works fine.
...
llvm-svn: 85865
2009-11-03 05:34:51 +00:00
Chris Lattner
9d0f925cf0
remove a isFreeCall check: it is a callinst that can write to memory already.
...
llvm-svn: 85863
2009-11-03 05:33:46 +00:00
Ted Kremenek
a474928cda
Update CMake file.
...
llvm-svn: 85861
2009-11-03 04:14:12 +00:00
Ted Kremenek
cd7ab8bfa0
Alphabetize.
...
llvm-svn: 85859
2009-11-03 04:01:53 +00:00
Chris Lattner
b1dfdadabd
turn IPSCCP back on now that the iterator invalidation bug is fixed.
...
llvm-svn: 85858
2009-11-03 03:42:51 +00:00
Anton Korobeynikov
ff29071cc6
Turn neon reg-reg moves fixup code into separate pass. This should reduce the compile time.
...
llvm-svn: 85850
2009-11-03 01:04:26 +00:00
Anton Korobeynikov
48b30c79be
Revert r85049, it is causing PR5367
...
llvm-svn: 85847
2009-11-03 00:24:48 +00:00
Bob Wilson
7e071e14eb
Revert previous change to a comment. The BlockAddresses go in the
...
constant pool so they don't get wrapped separately.
llvm-svn: 85844
2009-11-03 00:02:05 +00:00
Chris Lattner
00c9eb665d
fix a nasty iterator invalidation bug from my conversion from
...
std::map to DenseMap, exposed on release llvm-gcc bootstrap.
llvm-svn: 85840
2009-11-02 23:25:39 +00:00
Evan Cheng
ca5847665b
Revert 85799 for now. It might be breaking llvm-gcc driver.
...
llvm-svn: 85827
2009-11-02 21:49:14 +00:00
Bob Wilson
3144715b53
Put BlockAddresses into ARM constant pools.
...
llvm-svn: 85824
2009-11-02 20:59:23 +00:00
Kevin Enderby
633b294095
Fix ARMAsmParser::ParseMemoryOffsetReg() where the parameter OffsetRegNum should
...
have been passed as a reference.
llvm-svn: 85823
2009-11-02 20:14:39 +00:00
Chris Lattner
6f515d4ba8
revert r8579[56], which are causing unhappiness in buildbot land.
...
llvm-svn: 85818
2009-11-02 19:31:10 +00:00
Victor Hernandez
1d2fd19df6
Set bit instead of calling pow() to compute 2 << n
...
llvm-svn: 85814
2009-11-02 18:51:28 +00:00
Chris Lattner
874e573d61
typo
...
llvm-svn: 85812
2009-11-02 18:28:45 +00:00
Chris Lattner
a1776913ab
disable IPSCCP support for multiple return values, it is buggy, so just
...
disable it until I can fix it.
llvm-svn: 85810
2009-11-02 18:22:51 +00:00
David Goodwin
9aa890eab6
Fix schedule model for BFC.
...
llvm-svn: 85809
2009-11-02 17:28:36 +00:00
Bob Wilson
0c213bed8b
Hyphenate some comments.
...
llvm-svn: 85808
2009-11-02 17:10:37 +00:00
David Goodwin
0668ac893d
Chain dependencies used to enforce memory order should have latency of 0 (except for true dependency of Store followed by aliased Load... we estimate that case with a single cycle of latency assuming the hardware will bypass)
...
llvm-svn: 85807
2009-11-02 17:06:28 +00:00
Bob Wilson
6eb4f53d90
Add support for BlockAddress values in ARM constant pools.
...
llvm-svn: 85806
2009-11-02 16:59:06 +00:00
Bob Wilson
ac53e0c640
Prune unnecessary include.
...
llvm-svn: 85805
2009-11-02 16:58:31 +00:00
Evan Cheng
ec5cb0cdbd
Initilize the machine LICM CSE map upon the first time an instruction is hoisted to
...
the loop preheader. Add instructions which are already in the preheader block that
may be common expressions of those that are hoisted out. These does get a few more
instructions CSE'ed.
llvm-svn: 85799
2009-11-02 08:09:49 +00:00
Evan Cheng
e79ff8a615
These are done / no longer care.
...
llvm-svn: 85798
2009-11-02 07:58:25 +00:00
Evan Cheng
532dfd431f
Add an entry.
...
llvm-svn: 85797
2009-11-02 07:51:19 +00:00
Chris Lattner
f1afb57935
improve IPSCCP to be able to propagate the result of "!mayBeOverridden"
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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
Chris Lattner
c9279a9b4d
don't mark the arguments of prototype overdefined, they will never be queried.
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llvm-svn: 85793
2009-11-02 06:34:04 +00:00
Chris Lattner
9c7e443b07
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
Chris Lattner
23f5603692
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
Chris Lattner
c670f866ce
avoid redundant lookups in BBExecutable, and make it a SmallPtrSet.
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llvm-svn: 85790
2009-11-02 06:11:23 +00:00
Chris Lattner
16b825e51f
Use the libanalysis 'ConstantFoldLoadFromConstPtr' function
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instead of reinventing SCCP-specific logic. This gives us
new powers.
llvm-svn: 85789
2009-11-02 06:06:14 +00:00
Chris Lattner
32acebedf7
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
Evan Cheng
57f7c7c914
Unbreak ARMBaseRegisterInfo::copyRegToReg.
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llvm-svn: 85787
2009-11-02 04:44:55 +00:00
Chris Lattner
9fc809ca55
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
Chris Lattner
7e74831e52
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
Chris Lattner
0a8c553eb2
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
Edward O'Callaghan
ad76c7541b
Fix malloc.h is deprecated warning on DragonFly BSD.
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llvm-svn: 85782
2009-11-02 03:20:57 +00:00
Edward O'Callaghan
e91c6a1a44
Fix for warning seen on DF-BSD, Victor, please fix this to use a shift instead of pow()
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llvm-svn: 85781
2009-11-02 03:14:31 +00:00
Chris Lattner
4372b58329
tidy up some more: remove some extraneous inline specifiers, return harder.
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llvm-svn: 85780
2009-11-02 03:03:42 +00:00
Edward O'Callaghan
64a2e8f6a5
Apply fix for PR5135, Credit to Andreas Neustifter.
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llvm-svn: 85779
2009-11-02 02:55:39 +00:00
Chris Lattner
1c8cb53667
eliminate the SCCPSolver::getValueMapping method.
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llvm-svn: 85778
2009-11-02 02:54:24 +00:00
Chris Lattner
f02562df08
fix failures introduced in r85774
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llvm-svn: 85777
2009-11-02 02:48:17 +00:00
Chris Lattner
d4f286cb0c
factor duplicated code into a new DeleteInstructionInBlock
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function, eliminate temporary (and pointless) smallvector.
llvm-svn: 85776
2009-11-02 02:47:51 +00:00
Chris Lattner
a806b18c99
Chris used to use '...' instead of proper grammar.
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llvm-svn: 85775
2009-11-02 02:33:50 +00:00
Chris Lattner
37dc1cb0fb
remove some extraneous llvmcontext stuff.
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llvm-svn: 85774
2009-11-02 02:30:06 +00:00
Chris Lattner
28db47c45a
change LatticeVal to use PointerIntPair to save some space.
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llvm-svn: 85773
2009-11-02 02:20:32 +00:00
Chris Lattner
b94afb778c
fix instcombine to only do store sinking when the alignments
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of the two loads agree. Propagate that onto the new store.
llvm-svn: 85772
2009-11-02 02:06:37 +00:00
Anton Korobeynikov
09147da530
Handle splats of undefs properly. This includes the testcase for PR5364 as well.
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llvm-svn: 85767
2009-11-02 00:12:06 +00:00
Anton Korobeynikov
9737bfedeb
Do not infer the target type for COPY_TO_REGCLASS from dest regclass, this won't work if it can contain several types. Require explicit result type for the node for now. This fixes PR5364.
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PS: It seems that blackfin usage of copy_to_regclass is completely bogus!
llvm-svn: 85766
2009-11-02 00:11:39 +00:00
Anton Korobeynikov
ed410a8ee3
64-bit FP loads & stores operate on both NEON and VFP pipelines.
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llvm-svn: 85765
2009-11-02 00:11:06 +00:00
Anton Korobeynikov
3ba3789153
Use NEON reg-reg moves, where profitable. This reduces "domain-cross" stalls, when we used to mix vfp and neon code (the former were used for reg-reg moves)
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llvm-svn: 85764
2009-11-02 00:10:38 +00:00
Evan Cheng
80a8ae9a3a
Add PseudoSourceValue::mayAlias. It returns true if the object can ever alias any LLVM IR value.
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llvm-svn: 85762
2009-11-01 23:50:04 +00:00
Evan Cheng
a409c074c8
Fix a couple more places where we are creating ld / st instructions without memoperands.
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llvm-svn: 85746
2009-11-01 22:04:35 +00:00
Evan Cheng
4a0d47f209
Make use of imm12 version of Thumb2 ldr / str instructions more aggressively.
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llvm-svn: 85743
2009-11-01 21:12:51 +00:00
Chris Lattner
f3c2039dde
when merging two loads, make sure to take the min of their alignment,
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not the max. This didn't matter until the previous patch because
instcombine would refuse to sink loads with differenting alignments.
llvm-svn: 85738
2009-11-01 20:07:07 +00:00
Chris Lattner
e7b1e067e9
split load sinking out to its own function, like gep sinking.
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llvm-svn: 85737
2009-11-01 20:04:24 +00:00
Chris Lattner
b3fe1009a5
fix a bug noticed by inspection: when instcombine sinks loads through
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phis, it didn't preserve the alignment of the load. This is a missed
optimization of the alignment is high and a miscompilation when the
alignment is low.
llvm-svn: 85736
2009-11-01 19:50:13 +00:00
Duncan Sands
fd3669403c
Add a missing closing parenthesis, and tweak to fit in 80
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columns.
llvm-svn: 85732
2009-11-01 19:12:43 +00:00
Chris Lattner
888d78216f
cleanups, switch GlobalDCE to SmallPtrSet instead of std::set
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llvm-svn: 85730
2009-11-01 19:03:42 +00:00
Chris Lattner
ad2926bbb4
remove a bunch of locking from LLVMContextImpl. Since only one thread
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can be banging on a context at a time, this isn't needed. Owen, please
review.
llvm-svn: 85728
2009-11-01 18:42:03 +00:00
Chris Lattner
02e43b65d1
improve comment.
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llvm-svn: 85725
2009-11-01 18:17:37 +00:00
Chris Lattner
11944e39d4
add a comment about why we don't allow inlining indbr.
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llvm-svn: 85724
2009-11-01 18:16:30 +00:00
Chris Lattner
55a53e4e79
the verifier shouldn't modify the IR.
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llvm-svn: 85722
2009-11-01 18:11:50 +00:00