Dan Gohman
f4e82d1f2e
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86176 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 21:14:46 +00:00
Dan Gohman
03e896bd60
Update various Loop optimization passes to cope with the possibility that
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LoopSimplify form may not be available.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86175 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 21:11:53 +00:00
David Goodwin
7040d6e2f5
Fix bug in aggressive antidep breaking; liveness was not updated correctly for regions that do not have antidep candidates.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86172 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 21:06:09 +00:00
Dan Gohman
692ad8dd06
Teach LoopUnroll how to bail if LoopSimplify can't give it what it needs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86164 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 19:44:06 +00:00
Dan Gohman
6a02fc3070
Call getAnalysis<LoopInfo> the normal way, instead of asking passed-in
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LoopPassManager for it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86163 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 19:43:25 +00:00
Dan Gohman
a6a4aaefee
Fix IVUsers to avoid assuming that the loop has a unique backedge.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86161 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 19:41:37 +00:00
Dan Gohman
6890584ab1
Delete an unused member variable.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86160 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 19:33:15 +00:00
Dan Gohman
f17e9511f1
Factor out the predicate code for loopsimplify form exit blocks into
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a separate helper function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86159 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 19:21:41 +00:00
Dan Gohman
c5600c89d6
Avoid printing a redundant space in SDNode->dump().
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86151 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 18:49:11 +00:00
Dan Gohman
73bb251cd7
Remove uninteresting and confusing debug output.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86149 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 18:47:09 +00:00
Dan Gohman
b8eb17c807
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86147 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 18:25:44 +00:00
Chris Lattner
6c9fab7404
add a note from PR5313
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86146 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 18:19:19 +00:00
Benjamin Kramer
992a637297
Teach SimplifyLibCalls to fold memcmp calls with constant arguments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86141 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 17:44:22 +00:00
Benjamin Kramer
bcaa2157dd
Do map insert+find in one step. TODO -= 2.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86133 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 14:33:27 +00:00
Benjamin Kramer
e9684c682a
Path::createDirectoryOnDisk should ignore existing directories on win32 too.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86132 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 14:32:40 +00:00
Mon P Wang
82c443655d
Reintroduce support for overloading target intrinsics
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86114 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 03:19:08 +00:00
David Goodwin
98f2f1aff8
Replace std::map.at() with std::map[].
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86102 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 01:45:50 +00:00
David Goodwin
54097836f3
Break anti-dependencies using free registers in a round-robin manner to avoid introducing new anti-dependencies.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86098 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 01:19:35 +00:00
Evan Cheng
517e2556e3
Now that code placement optimization pass is run for JIT, make sure it's before pre-emit passes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86092 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 01:16:59 +00:00
Devang Patel
85b8de8118
Use WeakVH while storing metadata in containers.
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This fixes PR5393.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86091 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 01:13:02 +00:00
Evan Cheng
9fb744e169
Code refactoring.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86085 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 00:51:13 +00:00
David Goodwin
5be870add9
Correctly add chain dependencies around calls and unknown-side-effect instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86080 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 00:16:44 +00:00
Victor Hernandez
24f934d055
Update CreateMalloc so that its callers specify the size to allocate:
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86077 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05 00:03:03 +00:00
Devang Patel
61ecbd196c
While calculating original type size for a derived type, handle type variants encoded as DIDerivedType appropriately.
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This improves bitfield support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86073 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04 23:48:00 +00:00
Jim Grosbach
4371cda7f8
Grammar.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86068 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04 23:20:40 +00:00
Chris Lattner
40dd12e708
improve DSE when TargetData is not around, based on work by
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Hans Wennborg!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86067 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04 23:20:12 +00:00
Jim Grosbach
db1751a922
Now that the memory leak from McCat/08-main has been fixed (86056), re-enable
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aggressive testing of dynamic stack alignment.
Note that this is off by default, and enabled for LLCBETA nightly results.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86064 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04 23:11:07 +00:00
Jim Grosbach
6db06a0866
If a function has no stack frame at all, dynamic realignment isn't necessary.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86057 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04 22:41:51 +00:00
Jim Grosbach
c5848f4ced
dynamic stack realignment necessitates scanning the floating point callee-
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saved instructions even if no stack adjustment for those saves is needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86056 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04 22:41:00 +00:00
Devang Patel
33db508283
Fix DW_AT_data_member_location for bit-fields. It points to the location of annonymous field that covers respective field.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86054 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04 22:06:12 +00:00
Bob Wilson
3d90dbee69
Add PowerPC codegen for indirect branches.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86050 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04 21:31:18 +00:00
Lang Hames
0368e500eb
Handle empty/tombstone keys for LiveIndex more cleanly. Check for index sanity when constructing index list entries.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86049 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04 21:24:15 +00:00
Duncan Sands
7127b13342
A value is only assigned to errno if NumRead equals -1, so do
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not reason based on errno if NumRead has a different value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86046 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04 20:50:23 +00:00
Eric Christopher
522c01ac65
Add some options to disable various code gen optimizations.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86044 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04 19:57:50 +00:00
Devang Patel
c416d3b25d
Array element size does not match array size but array is not a bitfield.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86043 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04 19:37:40 +00:00
Jakob Stoklund Olesen
ad68264f59
Print out an informative comment for KILL instructions.
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86041 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04 19:24:37 +00:00
Chris Lattner
0fb7e18edd
Fix an iterator invalidation bug that happens when a hashtable
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resizes in IPSCCP. This fixes PR5394.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86036 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04 18:57:42 +00:00
Evan Cheng
50608bac2f
RangeIsDefinedByCopyFromReg() should check for subreg_to_reg, insert_subreg,
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86022 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04 08:33:14 +00:00
Chris Lattner
092543ca71
move two functions up higher in the file. Delete a useless argument
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86021 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04 08:05:20 +00:00
Evan Cheng
b9f51cbe98
The .n suffix must go after the predicate.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86019 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04 07:38:48 +00:00
Douglas Gregor
dece1e217a
Fix CMake makefiles
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85994 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04 01:32:06 +00:00
Evan Cheng
7883fa942f
Use ldr.n to workaround a darwin assembler bug.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85980 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04 00:00:39 +00:00
Lang Hames
233a60ec40
The Indexes Patch.
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85979 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 23:52:08 +00:00
Bob Wilson
888acc35a3
Fix branch folding bug for indirect branches: for a block containing only
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85975 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 23:44:31 +00:00
Chris Lattner
fc36a562ae
reimplement multiple return value handling in IPSCCP, making it
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more aggressive an correct. This survives building llvm in 64-bit
mode with optimizations and the built llvm passes make check.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85973 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 23:40:48 +00:00
Evan Cheng
5a1cd36019
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.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85965 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 23:13:34 +00:00
Evan Cheng
b23b2015eb
fconsts / fconstd immediate should be proceeded with #.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85952 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 21:59:33 +00:00
Evan Cheng
777c6b7caa
Re-apply 85799. It turns out my code isn't buggy.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85947 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 21:40:02 +00:00
David Goodwin
4de099d8ca
Do a scheduling pass ignoring anti-dependencies to identify candidate registers that should be renamed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85939 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 20:57:50 +00:00
Chris Lattner
abf67ef548
finish half thunk thought
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85937 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 20:52:57 +00:00
Victor Hernandez
3ad70d5d61
Changes requested (avoid getFunction(), avoid Type creation via isVoidTy(), and avoid redundant isFreeCall cases) in feedback to r85176
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85936 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 20:39:35 +00:00
David Goodwin
a9e610768b
<rdar://problem/7352605>. When building schedule graph use mayAlias information to avoid chaining loads/stores of spill slots with non-aliased memory ops.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85934 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 20:15:00 +00:00
Victor Hernandez
88efeaee22
Changes (* location in pointer variables, avoiding include, and using APInt::getLimitedValue) based on feedback to r85814
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85933 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 20:02:35 +00:00
Chris Lattner
2396cc37ae
fix an IPSCCP bug I introduced when I changed IPSCCP to start working on
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85923 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 19:24:51 +00:00
Duncan Sands
954cb43c80
Make this code more robust by not thinking we are making progress
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if zero bytes were read.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85922 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 19:10:22 +00:00
Devang Patel
e8bc45a645
Parse debug info attached with insertvalue and extractvalue instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85921 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 19:06:07 +00:00
Anton Korobeynikov
747409a290
Move subtarget check upper for NEON reg-reg fixup pass.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85914 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 18:46:11 +00:00
Devang Patel
1b845976d0
Ignore unnamed variables.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85909 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 18:30:27 +00:00
Chris Lattner
c175e5de2d
fix a subtle bug I introduced when refactoring SCCP. Testcase
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to follow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85903 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 16:50:11 +00:00
Benjamin Kramer
419e44edab
Eliminate some temporaries.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85896 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 12:52:50 +00:00
Evan Cheng
f6c0bffa8d
Trim unnecessary include.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85878 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 07:08:08 +00:00
Bob Wilson
af14e663ac
For Thumb indirect branches, use "mov pc, reg" which does not switch
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between ARM/Thumb modes and does not require the low bit of the target
address to be set for Thumb.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85874 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 06:29:56 +00:00
Jeffrey Yasskin
36d52bf4df
Fix a funky "declared with greater visibility than the type of its field"
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warning from gcc by removing VISIBILITY_HIDDEN attributes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85873 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 06:29:36 +00:00
Evan Cheng
ba908640b3
Fix PR5367. QPR_8 is the super regclass of DPR_8 and SPR_8.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85871 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 05:52:54 +00:00
Evan Cheng
b4db6a46e0
Clean up copyRegToReg.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85870 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 05:51:39 +00:00
Evan Cheng
3f4e47be0a
Add QPR_8 as a superreg class of SPR_8 and DPR_8.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85869 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 05:50:57 +00:00
Chris Lattner
ff2f683143
remove unneeded checks of isFreeCall
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85866 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 05:35:19 +00:00
Chris Lattner
b8d264aa6b
remove a check of isFreeCall: the argument to free is already nocapture so the generic call code works fine.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85865 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 05:34:51 +00:00
Chris Lattner
938e176633
remove a isFreeCall check: it is a callinst that can write to memory already.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85863 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 05:33:46 +00:00
Ted Kremenek
92dbd0b320
Update CMake file.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85861 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 04:14:12 +00:00
Ted Kremenek
8ab51e3041
Alphabetize.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85859 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 04:01:53 +00:00
Chris Lattner
14532d03a1
turn IPSCCP back on now that the iterator invalidation bug is fixed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85858 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 03:42:51 +00:00
Anton Korobeynikov
7aaf94bb0d
Turn neon reg-reg moves fixup code into separate pass. This should reduce the compile time.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85850 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 01:04:26 +00:00
Anton Korobeynikov
ab453e0641
Revert r85049, it is causing PR5367
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85847 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 00:24:48 +00:00
Bob Wilson
b62d257cf5
Revert previous change to a comment. The BlockAddresses go in the
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constant pool so they don't get wrapped separately.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85844 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03 00:02:05 +00:00
Chris Lattner
5cc66d979d
fix a nasty iterator invalidation bug from my conversion from
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std::map to DenseMap, exposed on release llvm-gcc bootstrap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85840 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 23:25:39 +00:00
Evan Cheng
454ac8961b
Revert 85799 for now. It might be breaking llvm-gcc driver.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85827 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 21:49:14 +00:00
Bob Wilson
907eebd5a6
Put BlockAddresses into ARM constant pools.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85824 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 20:59:23 +00:00
Kevin Enderby
60131c0d0b
Fix ARMAsmParser::ParseMemoryOffsetReg() where the parameter OffsetRegNum should
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have been passed as a reference.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85823 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 20:14:39 +00:00
Chris Lattner
3774c91854
revert r8579[56], which are causing unhappiness in buildbot land.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85818 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 19:31:10 +00:00
Victor Hernandez
bc117b83f6
Set bit instead of calling pow() to compute 2 << n
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85814 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 18:51:28 +00:00
Chris Lattner
ee7644da4c
typo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85812 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 18:28:45 +00:00
Chris Lattner
2bbbbd6ac8
disable IPSCCP support for multiple return values, it is buggy, so just
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disable it until I can fix it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85810 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 18:22:51 +00:00
David Goodwin
2f54a2fd85
Fix schedule model for BFC.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85809 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 17:28:36 +00:00
Bob Wilson
31ba10b743
Hyphenate some comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85808 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 17:10:37 +00:00
David Goodwin
7c9b1ac507
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)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85807 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 17:06:28 +00:00
Bob Wilson
28989a8ddc
Add support for BlockAddress values in ARM constant pools.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85806 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 16:59:06 +00:00
Bob Wilson
69e8445ced
Prune unnecessary include.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85805 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 16:58:31 +00:00
Evan Cheng
72ed88feac
Initilize the machine LICM CSE map upon the first time an instruction is hoisted to
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85799 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 08:09:49 +00:00
Evan Cheng
d3e18fad7e
These are done / no longer care.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85798 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 07:58:25 +00:00
Evan Cheng
e3b88fc01e
Add an entry.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85797 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 07:51:19 +00:00
Chris Lattner
12c8d5f5fe
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85795 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 07:33:59 +00:00
Chris Lattner
ff3ca15951
don't mark the arguments of prototype overdefined, they will never be queried.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85793 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 06:34:04 +00:00
Chris Lattner
e01985c95f
restore some code I removed in r85788, refactor it into
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a shared place instead of duplicating it 4 times.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85792 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 06:28:16 +00:00
Chris Lattner
574fa9e83c
remove some confused code that dates from when we had
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"multiple return values" but not "first class aggregates"
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85791 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 06:17:06 +00:00
Chris Lattner
09275299e2
avoid redundant lookups in BBExecutable, and make it a SmallPtrSet.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85790 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 06:11:23 +00:00
Chris Lattner
5638dc618a
Use the libanalysis 'ConstantFoldLoadFromConstPtr' function
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instead of reinventing SCCP-specific logic. This gives us
new powers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85789 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 06:06:14 +00:00
Chris Lattner
2a0433beea
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85788 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 05:55:40 +00:00
Evan Cheng
7baae87d8f
Unbreak ARMBaseRegisterInfo::copyRegToReg.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85787 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 04:44:55 +00:00
Chris Lattner
794c15dc71
fix a bug exposed by moving SRoA earlier which caused a crash building kc++
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85786 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 04:37:17 +00:00
Chris Lattner
89112b608f
only IPSCCP incoming arguments if the function is executable, this fixes
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an assertion on the buildbot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85784 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 03:25:55 +00:00
Chris Lattner
36c9952b1b
add a new ValueState::getConstantInt() helper, use it to
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simplify some code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85783 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 03:21:36 +00:00
Edward O'Callaghan
bd5dc45296
Fix malloc.h is deprecated warning on DragonFly BSD.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85782 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 03:20:57 +00:00
Edward O'Callaghan
438b00b2ad
Fix for warning seen on DF-BSD, Victor, please fix this to use a shift instead of pow()
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85781 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 03:14:31 +00:00
Chris Lattner
38871e4c3b
tidy up some more: remove some extraneous inline specifiers, return harder.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85780 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 03:03:42 +00:00
Edward O'Callaghan
2afd0723a2
Apply fix for PR5135, Credit to Andreas Neustifter.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85779 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 02:55:39 +00:00
Chris Lattner
8db50122a4
eliminate the SCCPSolver::getValueMapping method.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85778 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 02:54:24 +00:00
Chris Lattner
301a2792be
fix failures introduced in r85774
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85777 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 02:48:17 +00:00
Chris Lattner
cc4f60b113
factor duplicated code into a new DeleteInstructionInBlock
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function, eliminate temporary (and pointless) smallvector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85776 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 02:47:51 +00:00
Chris Lattner
2f09625a9f
Chris used to use '...' instead of proper grammar.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85775 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 02:33:50 +00:00
Chris Lattner
ea0db070a1
remove some extraneous llvmcontext stuff.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85774 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 02:30:06 +00:00
Chris Lattner
7927220aef
change LatticeVal to use PointerIntPair to save some space.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85773 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 02:20:32 +00:00
Chris Lattner
7ebbabf500
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85772 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 02:06:37 +00:00
Anton Korobeynikov
2ae0eec1c0
Handle splats of undefs properly. This includes the testcase for PR5364 as well.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85767 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 00:12:06 +00:00
Anton Korobeynikov
3a639a07ea
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!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85766 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 00:11:39 +00:00
Anton Korobeynikov
2e1da9fea4
64-bit FP loads & stores operate on both NEON and VFP pipelines.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85765 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 00:11:06 +00:00
Anton Korobeynikov
f95215f551
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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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85764 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-02 00:10:38 +00:00
Evan Cheng
f57b1baa44
Add PseudoSourceValue::mayAlias. It returns true if the object can ever alias any LLVM IR value.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85762 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 23:50:04 +00:00
Evan Cheng
e3ce8aab0a
Fix a couple more places where we are creating ld / st instructions without memoperands.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85746 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 22:04:35 +00:00
Evan Cheng
48d8afab73
Make use of imm12 version of Thumb2 ldr / str instructions more aggressively.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85743 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 21:12:51 +00:00
Chris Lattner
a664bb7bdc
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85738 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 20:07:07 +00:00
Chris Lattner
751a362c22
split load sinking out to its own function, like gep sinking.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85737 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 20:04:24 +00:00
Chris Lattner
e3c6281a98
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85736 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 19:50:13 +00:00
Duncan Sands
b046964101
Add a missing closing parenthesis, and tweak to fit in 80
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columns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85732 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 19:12:43 +00:00
Chris Lattner
ec4c7b9766
cleanups, switch GlobalDCE to SmallPtrSet instead of std::set
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85730 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 19:03:42 +00:00
Chris Lattner
c4775e4b97
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85728 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 18:42:03 +00:00
Chris Lattner
280f3fedbf
improve comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85725 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 18:17:37 +00:00
Chris Lattner
66588707ac
add a comment about why we don't allow inlining indbr.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85724 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 18:16:30 +00:00
Chris Lattner
4a7642ec9c
the verifier shouldn't modify the IR.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85722 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 18:11:50 +00:00
Douglas Gregor
076124ef26
Reverting 85714, 85715, 85716, which are breaking the build
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85717 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 16:42:53 +00:00
Dan Gohman
2166f62290
Add a function to Passes.h to allow clients to create instances
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of the ScalarEvolution pass without needing to #include ScalarEvolution.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85716 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 15:28:36 +00:00
Dan Gohman
34e9d7b6be
Don't #include Pass.h from CallGraph.h.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85715 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 15:23:35 +00:00
Dan Gohman
b2fae7560d
Remove the #include of Pass.h from PassManager.h. This breaks a significant
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#include dependency, as frontends commonly pull in PassManager.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85714 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 15:20:19 +00:00
Chris Lattner
b2710041fb
teach ipsccp and ipconstprop that a blockaddress doesn't 'take the address' of a function
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in a way that should prevent ip constprop. This allows clang/test/CodeGen/indirect-goto.c
to pass with the new indirect goto lowering.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85709 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 06:11:53 +00:00
Chris Lattner
882029269e
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85708 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 04:57:33 +00:00
Chris Lattner
0b649dd91f
strengthen an assumption: RevectorBlockTo knows that PredBB
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ended in an uncond branch because the pass requires BreakCriticalEdges.
However, BCE doesn't eliminate critical adges from indbrs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85707 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 04:23:20 +00:00
Chris Lattner
660a4f389c
fix an issue where the verifier would reject a function whose entry
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block had its address taken even if the blockaddress was dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85706 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 04:08:01 +00:00
Chris Lattner
da9c281121
if CostMetrics says to never duplicate some code, don't unswitch a loop.
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This prevents unswitching from duplicating indbr's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85705 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 03:42:55 +00:00
Chris Lattner
0a4c6789d5
constant fold indirectbr(blockaddress(%bb)) -> br label %bb.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85704 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 03:40:38 +00:00
Chris Lattner
43f44aa160
improve x86 codegen support for blockaddress. We now compile
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the testcase into:
_test1: ## @test1
## BB#0: ## %entry
leaq L_test1_bb6(%rip), %rax
jmpq *%rax
L_test1_bb: ## Address Taken
LBB1_1: ## %bb
movb $1, %al
ret
L_test1_bb6: ## Address Taken
LBB1_2: ## %bb6
movb $2, %al
ret
Note, it is very very strange that BlockAddressSDNode doesn't carry
around TargetFlags. Dan, please fix this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85703 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 03:25:03 +00:00
Chris Lattner
b93a23a532
pull check for return inst out of loop, never inline a callee that contains
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an indirectbr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85702 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 03:07:53 +00:00
Chris Lattner
d0ec2352ae
Fix BlockAddress::replaceUsesOfWithOnConstant to correctly
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maintain the block use count in SubclassData.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85701 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 03:03:03 +00:00
Chris Lattner
2a749d3647
implement linker support for BlockAddress.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85700 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 02:46:39 +00:00
Chris Lattner
cdfc940912
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85699 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 01:27:45 +00:00
Evan Cheng
de17fb6e4d
Use cbz and cbnz instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85698 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 23:46:45 +00:00
Jim Grosbach
8cd0a8cb82
vml[as].f32 cause stalls in following advanced SIMD instructions. Avoid using
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them for scalar floating point operations for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85697 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 22:57:36 +00:00
Chris Lattner
fb6e701f08
Make sure PRE doesn't split crit edges from indirectbr.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85692 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 22:11:15 +00:00
Chris Lattner
a4b04210d4
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85690 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 22:04:43 +00:00
Chris Lattner
1b98ff3e4f
update the comment above llvm::SplitCriticalEdge, and make
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it abort on IndirectBrInst as describe in the comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85688 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 21:51:10 +00:00
Jim Grosbach
bcf2f2c159
Expand 64-bit logical shift right inline
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85687 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 21:42:19 +00:00
Jim Grosbach
b4a976c304
Expand 64-bit arithmetic shift right inline
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85685 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 21:00:56 +00:00
Dan Gohman
b953c944b6
Fix a missing newline in the dwarf output code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85684 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 20:59:09 +00:00
Dan Gohman
0ba90f3e34
Make -print-machineinstrs more readable.
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- Be consistent when referring to MachineBasicBlocks: BB#0.
- Be consistent when referring to virtual registers: %reg1024.
- Be consistent when referring to unknown physical registers: %physreg10.
- Be consistent when referring to known physical registers: %RAX
- Be consistent when referring to register 0: %reg0
- Be consistent when printing alignments: align=16
- Print jump table contents.
- Don't print host addresses, in general.
- and various other cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85682 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 20:19:03 +00:00
Dan Gohman
499a9377a3
Factor out more code into addCommonCodeGenPasses. The JIT wasn't
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previously running CodePlacementOpt. Also print headers before
each dump in -print-machineinstrs mode, so that it's clear which
dump is which.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85681 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 20:17:39 +00:00
Chris Lattner
c1dc35094e
adjust a couple xforms to work with null bb's in BlockAddress.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85680 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 20:13:24 +00:00
Chris Lattner
7d83ebcadd
Make blockaddress(@func, null) be valid, and make 'deleting a basic
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block with a blockaddress still referring to it' replace the invalid
blockaddress with a new blockaddress(@func, null) instead of a
inttoptr(1).
This changes the bitcode encoding format, and still needs codegen
support (this should produce a non-zero value, referring to the entry
block of the function would also be quite reasonable).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85678 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 20:08:37 +00:00
Jim Grosbach
c2b879fcfe
Expand 64 bit left shift inline rather than using the libcall. For now, this
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is unconditional. Making it still use the libcall when optimizing for size
would be a good adjustment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85675 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 19:38:01 +00:00
Chris Lattner
28f3d34a9b
add a comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85671 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 17:48:31 +00:00
Dan Gohman
438b583dbd
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85670 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 17:33:01 +00:00
Dan Gohman
dca094100b
Remove redundant code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85668 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 16:16:41 +00:00
Dan Gohman
f230d8ad15
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85667 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 16:08:00 +00:00
Dan Gohman
4c7279ac72
Rename forgetLoopBackedgeTakenCount to forgetLoop, because it
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clears out more information than just the stored backedge taken count.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85664 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 15:04:55 +00:00
Dan Gohman
a2aabe38ae
Replace LoopUnrollPass.cpp's custom code-size estimation code using
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the new common CodeMetrics code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85663 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:54:17 +00:00
Dan Gohman
b56c966019
Simplify this code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85662 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:46:50 +00:00
Dan Gohman
3f9432ebca
Remove an unnecessary #include.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85661 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:39:43 +00:00
Dan Gohman
13d63f2d26
Update CMakeLists for recent renames.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85660 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:38:25 +00:00
Dan Gohman
928a75f057
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85659 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:37:31 +00:00
Dan Gohman
9f476e3179
Remove CodeGenLICM. It's largely obsoleted by MachineLICM's new ability
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to unfold loop-invariant loads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85657 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:35:41 +00:00
Dan Gohman
576fd76a68
Make ScalarEvolutionAliasAnalysis slightly more aggressive, by making an
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underlying alias call even for non-identified-object values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85656 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:32:25 +00:00
Dan Gohman
5b097014f2
Reapply r85634, with the bug fixed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85655 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:22:52 +00:00
Dan Gohman
75832d7d4f
When discarding SrcValue information, discard all of it so that code
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that uses this information knows to behave conservatively.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85654 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:14:04 +00:00
Dan Gohman
60d686df54
Fix 80-column violation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85653 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:12:53 +00:00
Eric Christopher
cdfa666c30
Fix warning with gcc-4.0 and signed/unsigned.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85648 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 09:24:35 +00:00
Evan Cheng
9eda68988e
It's safe to remat t2LDRpci; Add PseudoSourceValue to load / store's to enable more machine licm. More changes coming.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85643 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 03:39:36 +00:00
Evan Cheng
a4006c6dbf
Revert 85634. It's breaking consumer-typeset (and others).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85641 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 01:28:06 +00:00
Dan Gohman
1410b7620a
Add assertion checks here to turn silent miscompiles into aborts.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85639 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 23:59:06 +00:00
Dan Gohman
4cddfd9b6f
Don't mark registers dead here when processing nodes with MVT::Flag
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results. This works around a problem affecting targets which rely on
MVT::Flag to handle physical register defs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85638 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 23:57:47 +00:00
Dan Gohman
0e747beb3c
Add a comment about a missed opportunity.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85635 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 23:15:43 +00:00
Dan Gohman
1107c63efe
Optimize around the fact that pred_iterator is slow: instead of sorting
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PHI operands by the predecessor order, sort them by the order used by the
first PHI in the block. This is still suffucient to expose duplicates.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85634 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 23:15:21 +00:00
Kevin Enderby
9c41fa87ea
Updates to the ARM target assembler for llvm-mc per review comments from
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Daniel Dunbar.
- Reordered the fields in the ARMOperand Mem struct to make the struct smaller.
Making bool's into 1 bit fields and put the MCExpr* fields adjacent to each
other.
- Fixed a number of places in ARMAsmParser.cpp so they have doxygen comments.
- Change the name of ARMAsmParser::ParseRegister() to MaybeParseRegister and
added the bool ParseWriteBack parameter.
- Changed ARMAsmParser::ParseMemory() to call MaybeParseRegister().
- Added ARMAsmParser::ParseMemoryOffsetReg to factor out parsing the offset of a
memory operand. And use it for both parsing both preindexed and post indexing
addressing forms in ARMAsmParser::ParseMemory.
- Changed the first argument to ParseShift() to a reference.
- Changed ParseShift() to check for Rrx first and return to reduce nesting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85632 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 22:55:57 +00:00
Devang Patel
5e8e2d7ad9
If string field is empty then return NULL.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85630 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 22:52:47 +00:00
Chris Lattner
dac8bde235
if basic blocks are destroyed while there are *just* BlockAddress' hanging
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around, then zap them. This is analogous to dangling constantexprs hanging
off functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85627 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 22:39:36 +00:00
Dan Gohman
2c63566e40
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85626 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 22:39:04 +00:00
Chris Lattner
3821176b2e
make hasAddressTaken() constant time by storing a refcount in BB's subclass data.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85625 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 22:33:29 +00:00
Bob Wilson
57f224a5a4
Add a note about Robert Muth's alternate jump table implementation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85624 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 22:22:46 +00:00
Dan Gohman
8e42e4baae
Sort the incoming values in PHI nodes to match the predecessor order.
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This helps expose duplicate PHIs, which will make it easier for them
to be eliminated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85623 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 22:22:22 +00:00
Dan Gohman
0115e164ba
Fix MachineLICM to use the correct virtual register class when
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unfolding loads for hoisting. getOpcodeAfterMemoryUnfold returns the
opcode of the original operation without the load, not the load
itself, MachineLICM needs to know the operand index in order to get
the correct register class. Extend getOpcodeAfterMemoryUnfold to
return this information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85622 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 22:18:41 +00:00
Chris Lattner
287db0c23c
it isn't valid to take the address of the entry block.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85621 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 22:15:48 +00:00
Devang Patel
7cb7e12c08
If a type is derived from a derived type then calculate size appropriately.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85619 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 22:09:30 +00:00
Bob Wilson
929ffa2414
Fix a comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85610 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 20:13:25 +00:00
Evan Cheng
2f192c256c
Add option to createGVNPass to disable PRE.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85609 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 20:12:24 +00:00
Lang Hames
788fa17af8
Stop the iterator in ValueLiveAt from potentially running off the end of the interval.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85599 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 18:12:09 +00:00
Rafael Espindola
c1382b745f
This fixes functions like
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void f (int a1, int a2, int a3, int a4, int a5,...)
In ARMTargetLowering::LowerFormalArguments if the function has 4 or
more regular arguments we used to set VarArgsFrameIndex using an
offset of 0, which is only correct if the function has exactly 4
regular arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85590 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 14:33:14 +00:00
Bob Wilson
ddb16df912
Add ARM codegen for indirect branches.
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clang/test/CodeGen/indirect-goto.c runs! (unoptimized)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85577 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 05:45:42 +00:00
Dan Gohman
0b81e19d19
Most stack straces don't need 3 digits worth of levels.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85575 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 02:45:10 +00:00
Dan Gohman
ab918103d2
Don't delete blocks which have their address taken.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85572 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 02:13:27 +00:00
Dan Gohman
dfbbf6e023
Mention if a block has its address taken in debug output.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85571 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 02:08:26 +00:00
Dan Gohman
0ed1f4264a
Simplify this code and avoid an extra space character in the output.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85568 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 02:01:10 +00:00
Dan Gohman
6a55e62996
Add support for BlockAddress static initializers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85562 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 01:45:18 +00:00
Dan Gohman
6ae5b32e48
Add a FIXME comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85559 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 01:38:20 +00:00