11 years agotest commit
Patrik Hägglund [Mon, 21 May 2012 13:18:06 +0000 (13:18 +0000)]
test commit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157184 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoPR1255 (case ranges: work with ConstantRangesSet instead of ConstantInt) related...
Stepan Dyatkovskiy [Mon, 21 May 2012 10:44:40 +0000 (10:44 +0000)]
PR1255 (case ranges: work with ConstantRangesSet instead of ConstantInt) related changes for Execution and Verifier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157183 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAllow 256-bit shuffles to still be split even if only half of the shuffle comes from...
Craig Topper [Mon, 21 May 2012 06:40:16 +0000 (06:40 +0000)]
Allow 256-bit shuffles to still be split even if only half of the shuffle comes from two 128-bit pieces.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157175 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoGive a small negative bias to giant edge bundles.
Jakob Stoklund Olesen [Mon, 21 May 2012 03:11:23 +0000 (03:11 +0000)]
Give a small negative bias to giant edge bundles.

This helps compile time when the greedy register allocator splits live
ranges in giant functions. Without the bias, we would try to grow
regions through the giant edge bundles, usually to find out that the
region became too big and expensive.

If a live range has many uses in blocks near the giant bundle, the small
negative bias doesn't make a big difference, and we still consider
regions including the giant edge bundle.

Giant edge bundles are usually connected to landing pads or indirect

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157174 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoClear kill flags on the fly when joining intervals.
Jakob Stoklund Olesen [Sun, 20 May 2012 21:41:05 +0000 (21:41 +0000)]
Clear kill flags on the fly when joining intervals.

With physreg joining out of the way, it is easy to recognize the
instructions that need their kill flags cleared while testing for

This allows us to skip the final scan of all instructions for an 11%
speedup of the coalescer pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157169 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd RPO to the lexicon.
Nick Lewycky [Sun, 20 May 2012 20:30:47 +0000 (20:30 +0000)]
Add RPO to the lexicon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157166 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMake the global base reg GR32_NOSP.
Jakob Stoklund Olesen [Sun, 20 May 2012 18:43:00 +0000 (18:43 +0000)]
Make the global base reg GR32_NOSP.

It can sometimes be used in addressing modes that don't support %ESP.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157165 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoConstrain regclasses in PeepholeOptimizer.
Jakob Stoklund Olesen [Sun, 20 May 2012 18:42:55 +0000 (18:42 +0000)]
Constrain regclasses in PeepholeOptimizer.

It can be necessary to restrict to a sub-class before accessing

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157164 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoConstrain register classes in TailDup.
Jakob Stoklund Olesen [Sun, 20 May 2012 18:42:51 +0000 (18:42 +0000)]
Constrain register classes in TailDup.

When rewriting operands, make sure the new registers have a compatible
register class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157163 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoWhen legalising shifts, do not pre-build a list of operands which
Peter Collingbourne [Sun, 20 May 2012 18:36:15 +0000 (18:36 +0000)]
When legalising shifts, do not pre-build a list of operands which
may be RAUW'd by the recursive call to LegalizeOps; instead, retrieve
the other operands when calling UpdateNodeOperands.  Fixes PR12889.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157162 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoEmit memcmp directly from the StringMatcherEmitter.
Benjamin Kramer [Sun, 20 May 2012 18:10:42 +0000 (18:10 +0000)]
Emit memcmp directly from the StringMatcherEmitter.

There should be no difference in the resulting binary, given a sufficiently
smart compiler. However we already had compiler timeouts on the generated
code in Intrinsics.gen, this hopefully makes the lives of slow buildbots a
little easier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157161 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoPlug a leak when using MCJIT.
Benjamin Kramer [Sun, 20 May 2012 17:24:08 +0000 (17:24 +0000)]
Plug a leak when using MCJIT.

Found by valgrind.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157160 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd a missing PPC 64-bit stwu pattern.
Hal Finkel [Sun, 20 May 2012 17:11:24 +0000 (17:11 +0000)]
Add a missing PPC 64-bit stwu pattern.

This seems to fix the remaining compile-time failures on PPC64 when
compiling with -enable-ppc-preinc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157159 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUse TargetMachine's register info instead of creating a new one and leaking it.
Benjamin Kramer [Sun, 20 May 2012 11:24:27 +0000 (11:24 +0000)]
Use TargetMachine's register info instead of creating a new one and leaking it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157155 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUse the right register class for LDRrs.
Jakob Stoklund Olesen [Sun, 20 May 2012 06:38:47 +0000 (06:38 +0000)]
Use the right register class for LDRrs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157152 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoTransfer memory operands to the right instruction.
Jakob Stoklund Olesen [Sun, 20 May 2012 06:38:42 +0000 (06:38 +0000)]
Transfer memory operands to the right instruction.

They need to go on the PICLDR as the verifier points out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157151 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoProperly constrain register classes for sub-registers.
Jakob Stoklund Olesen [Sun, 20 May 2012 06:38:37 +0000 (06:38 +0000)]
Properly constrain register classes for sub-registers.

Not all GR64 registers have sub_8bit sub-registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157150 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoProperly constrain register classes in 2-addr.
Jakob Stoklund Olesen [Sun, 20 May 2012 06:38:32 +0000 (06:38 +0000)]
Properly constrain register classes in 2-addr.

X86 has 2-addr instructions with different constraints on the tied def
and use operands. One is GR32, one is GR32_NOSP.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157149 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMissed a push_back in r157147.
Jakob Stoklund Olesen [Sun, 20 May 2012 05:28:53 +0000 (05:28 +0000)]
Missed a push_back in r157147.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157148 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAvoid deleting extra copies when RegistersDefinedFromSameValue is true.
Jakob Stoklund Olesen [Sun, 20 May 2012 04:52:48 +0000 (04:52 +0000)]
Avoid deleting extra copies when RegistersDefinedFromSameValue is true.

This function adds copies to be erased to DupCopies, avoid also adding
them to DeadCopies.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157147 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix build bots.
Jakob Stoklund Olesen [Sun, 20 May 2012 03:57:12 +0000 (03:57 +0000)]
Fix build bots.

Avoid looking at the operands of a potentially erased instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157146 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoLiveRangeQuery simplifies shrinkToUses().
Jakob Stoklund Olesen [Sun, 20 May 2012 02:54:52 +0000 (02:54 +0000)]
LiveRangeQuery simplifies shrinkToUses().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157145 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUse LiveRangeQuery in ScheduleDAGInstrs.
Jakob Stoklund Olesen [Sun, 20 May 2012 02:44:38 +0000 (02:44 +0000)]
Use LiveRangeQuery in ScheduleDAGInstrs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157144 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoEliminate some uses of struct LiveRange.
Jakob Stoklund Olesen [Sun, 20 May 2012 02:44:36 +0000 (02:44 +0000)]
Eliminate some uses of struct LiveRange.

That struct ought to be a LiveInterval implementation detail.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157143 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUse LiveRangeQuery instead of getLiveRangeContaining().
Jakob Stoklund Olesen [Sun, 20 May 2012 02:44:33 +0000 (02:44 +0000)]
Use LiveRangeQuery instead of getLiveRangeContaining().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157142 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd a LiveRangeQuery class.
Jakob Stoklund Olesen [Sun, 20 May 2012 02:44:30 +0000 (02:44 +0000)]
Add a LiveRangeQuery class.

This class is meant to be the primary interface for examining a live
range in the vicinity on a given instruction. It avoids all the messy
dealings with iterators and early clobbers.

This is a more abstract interface to live ranges, hiding the
implementation as a vector of segments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157141 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoDo not pass an invalid domtree to SimplifyInstruction from
Peter Collingbourne [Sun, 20 May 2012 01:32:09 +0000 (01:32 +0000)]
Do not pass an invalid domtree to SimplifyInstruction from
LoopUnswitch.  Fixes PR12887.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157140 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSimplify overlap check.
Jakob Stoklund Olesen [Sat, 19 May 2012 23:59:27 +0000 (23:59 +0000)]
Simplify overlap check.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157137 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix 12892.
Jakob Stoklund Olesen [Sat, 19 May 2012 23:34:59 +0000 (23:34 +0000)]
Fix 12892.

Dead code elimination during coalescing could cause a virtual register
to be split into connected components. The following rewriting would be
confused about the already joined copies present in the code, but
without a corresponding value number in the live range.

Erase all joined copies instantly when joining intervals such that the
MI and LiveInterval representations are always in sync.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157135 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoDo not eliminate allocas whose alignment exceeds that of the
Peter Collingbourne [Sat, 19 May 2012 22:52:10 +0000 (22:52 +0000)]
Do not eliminate allocas whose alignment exceeds that of the
copied-in constant, as a subsequent user may rely on over alignment.
Fixes PR12885.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157134 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd a FIXME about access to negative stack-pointer offsets on PPC32.
Hal Finkel [Sat, 19 May 2012 21:52:55 +0000 (21:52 +0000)]
Add a FIXME about access to negative stack-pointer offsets on PPC32.

The current code will generate a prologue which starts with something like:
        mflr 0
        stw 31, -4(1)
        stw 0, 4(1)
        stwu 1, -16(1)

But under the PPC32 SVR4 ABI, access to negative offsets from R1 is not allowed.

This was pointed out by Peter Bergner.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157133 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemove the late DCE in RegisterCoalescer.
Jakob Stoklund Olesen [Sat, 19 May 2012 21:02:31 +0000 (21:02 +0000)]
Remove the late DCE in RegisterCoalescer.

Dead code and joined copies are now eliminated on the fly, and there is
no need for a post pass.

This makes the coalescer work like other modern register allocator
passes: Code is changed on the fly, there is no pending list of changes
to be committed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157132 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoErase joined copies immediately.
Jakob Stoklund Olesen [Sat, 19 May 2012 20:54:07 +0000 (20:54 +0000)]
Erase joined copies immediately.

The late dead code elimination is no longer necessary.

The test changes are cause by a register hint that can be either %rdi or
%rax. The choice depends on the use list order, which this patch changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157131 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix an ancient bug in removeCopyByCommutingDef().
Jakob Stoklund Olesen [Sat, 19 May 2012 20:54:03 +0000 (20:54 +0000)]
Fix an ancient bug in removeCopyByCommutingDef().

Before rewriting uses of one value in A to register B, check that there
are no tied uses. That would require multiple A values to be rewritten.

This bug can't bite in the current version of the code for a fairly
subtle reason: A tied use would have caused 2-addr to insert a copy
before the use. If the copy has been coalesced, it will be found by the
same loop changed by this patch, and the optimization is aborted.

This was exposed by 400.perlbench and lua after applying a patch that
deletes joined copies aggressively.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157130 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoOn Haswell, perfer storing YMM registers using a single instruction.
Nadav Rotem [Sat, 19 May 2012 20:30:08 +0000 (20:30 +0000)]
On Haswell, perfer storing YMM registers using a single instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157129 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd support for additional in-reg vbroadcast patterns
Nadav Rotem [Sat, 19 May 2012 19:57:37 +0000 (19:57 +0000)]
Add support for additional in-reg vbroadcast patterns

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157127 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoDisambiguate call to operator==.
Benjamin Kramer [Sat, 19 May 2012 19:32:11 +0000 (19:32 +0000)]
Disambiguate call to operator==.

clang++ and msvc happily had no problem with it but g++ refuses to compile.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157126 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoCollect inflatable virtual registers on the fly.
Jakob Stoklund Olesen [Sat, 19 May 2012 19:25:00 +0000 (19:25 +0000)]
Collect inflatable virtual registers on the fly.

There is no reason to defer the collection of virtual registers whose
register class may be replaced with a larger class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157125 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoValueMap: Use DenseMap's find_as mechanism to reduce use list churn.
Benjamin Kramer [Sat, 19 May 2012 19:15:32 +0000 (19:15 +0000)]
ValueMap: Use DenseMap's find_as mechanism to reduce use list churn.

Otherwise just looking up a value in the map requires creating a VH, adding it to the use lists and destroying it again.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157124 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMove CallbackVHs dtor inline, it can be devirtualized in many cases. Move the other...
Benjamin Kramer [Sat, 19 May 2012 19:15:25 +0000 (19:15 +0000)]
Move CallbackVHs dtor inline, it can be devirtualized in many cases. Move the other virtual methods out of line as they are only called from within Value.cpp anyway.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157123 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoTidy up some spacing and inconsistent use of pre/post increment. No functional change...
Craig Topper [Sat, 19 May 2012 19:14:18 +0000 (19:14 +0000)]
Tidy up some spacing and inconsistent use of pre/post increment. No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157122 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemove extra semicolons.
Benjamin Kramer [Sat, 19 May 2012 16:44:12 +0000 (16:44 +0000)]
Remove extra semicolons.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157118 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoProvide move semantics for TinyPtrVector and for DenseMap's rehash function.
Benjamin Kramer [Sat, 19 May 2012 13:28:54 +0000 (13:28 +0000)]
Provide move semantics for TinyPtrVector and for DenseMap's rehash function.

This makes DenseMap<..., TinyPtrVector<...>> as cheap as it always should've been!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157113 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoOrdinary PR1255 patch: DifferenceEngine and CPPBackend adopted to the new SwitchInst...
Stepan Dyatkovskiy [Sat, 19 May 2012 13:14:30 +0000 (13:14 +0000)]
Ordinary PR1255 patch: DifferenceEngine and CPPBackend adopted to the new SwitchInst methods.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157112 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoCopy some AVX support from MCJIT to JIT. Maybe will fix PR12748.
Craig Topper [Sat, 19 May 2012 08:28:17 +0000 (08:28 +0000)]
Copy some AVX support from MCJIT to JIT. Maybe will fix PR12748.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157109 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoEliminate dead code after remat.
Jakob Stoklund Olesen [Sat, 19 May 2012 05:25:59 +0000 (05:25 +0000)]
Eliminate dead code after remat.

This will remove the original def once it has no more uses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157104 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoDon't remat during updateRegDefsUses().
Jakob Stoklund Olesen [Sat, 19 May 2012 05:25:56 +0000 (05:25 +0000)]
Don't remat during updateRegDefsUses().

Remaining virtreg->physreg copies were rematerialized during
updateRegDefsUses(), but we already do the same thing in joinCopy() when
visiting the physreg copy instruction.

Eliminate the preserveSrcInt argument to reMaterializeTrivialDef(). It
is now always true.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157103 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoImmediately erase trivially useless copies.
Jakob Stoklund Olesen [Sat, 19 May 2012 05:25:53 +0000 (05:25 +0000)]
Immediately erase trivially useless copies.

There is no need for these instructions to stick around since they are
known to be not dead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157102 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRun proper recursive dead code elimination during coalescing.
Jakob Stoklund Olesen [Sat, 19 May 2012 05:25:50 +0000 (05:25 +0000)]
Run proper recursive dead code elimination during coalescing.

Dead copies cause problems because they are trivial to coalesce, but
removing them gived the live range a dangling end point. This patch
enables full dead code elimination which trims live ranges to their uses
so end points don't dangle.

DCE may erase multiple instructions. Put the pointers in an ErasedInstrs
set so we never risk visiting erased instructions in the work list.

There isn't supposed to be any dead copies entering RegisterCoalescer,
but they do slip by as evidenced by test/CodeGen/X86/coalescer-dce.ll.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157101 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAllow LiveRangeEdit to be created with a NULL parent.
Jakob Stoklund Olesen [Sat, 19 May 2012 05:25:46 +0000 (05:25 +0000)]
Allow LiveRangeEdit to be created with a NULL parent.

The dead code elimination with callbacks is still useful.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157100 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoActually support DW_TAG_rvalue_reference_type that we were trying
Eric Christopher [Sat, 19 May 2012 01:36:37 +0000 (01:36 +0000)]
Actually support DW_TAG_rvalue_reference_type that we were trying
to generate out of the front end.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157094 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd support for the 'd' mips inline asm output modifier.
Eric Christopher [Sat, 19 May 2012 00:51:56 +0000 (00:51 +0000)]
Add support for the 'd' mips inline asm output modifier.

Patch by Jack Carter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157093 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSCEV: Add MarkPendingLoopPredicates to avoid recursive isImpliedCond.
Andrew Trick [Sat, 19 May 2012 00:48:25 +0000 (00:48 +0000)]
SCEV: Add MarkPendingLoopPredicates to avoid recursive isImpliedCond.

getUDivExpr attempts to simplify by checking for overflow.
isLoopEntryGuardedByCond then evaluates the loop predicate which
may lead to the same getUDivExpr causing endless recursion.

Fixes PR12868: clang 3.2 segmentation fault.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157092 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix replacing all the users of objc weak runtime routines
Dan Gohman [Fri, 18 May 2012 22:17:29 +0000 (22:17 +0000)]
Fix replacing all the users of objc weak runtime routines
when deleting them. rdar://11434915.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157080 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoModernize naming convention for class members.
Jakob Stoklund Olesen [Fri, 18 May 2012 22:10:15 +0000 (22:10 +0000)]
Modernize naming convention for class members.

No functional change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157079 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMove all work list processing to copyCoalesceWorkList().
Jakob Stoklund Olesen [Fri, 18 May 2012 21:09:40 +0000 (21:09 +0000)]
Move all work list processing to copyCoalesceWorkList().

This will make it possible to filter out erased instructions later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157073 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoallow LazyValueInfo::getEdgeValue() to reason about multiple edges from the same...
Nuno Lopes [Fri, 18 May 2012 21:02:10 +0000 (21:02 +0000)]
allow LazyValueInfo::getEdgeValue() to reason about multiple edges from the same switch instruction by doing union of ranges (which may still be conservative, but it's more aggressive than before)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157071 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRefactor data-in-code annotations.
Jim Grosbach [Fri, 18 May 2012 19:12:01 +0000 (19:12 +0000)]
Refactor data-in-code annotations.

Use a dedicated MachO load command to annotate data-in-code regions.
This is the same format the linker produces for final executable images,
allowing consistency of representation and use of introspection tools
for both object and executable files.

Data-in-code regions are annotated via ".data_region"/".end_data_region"
directive pairs, with an optional region type.

data_region_directive := ".data_region" { region_type }
region_type := "jt8" | "jt16" | "jt32" | "jta32"
end_data_region_directive := ".end_data_region"

The previous handling of ARM-style "$d.*" labels was broken and has
been removed. Specifically, it didn't handle ARM vs. Thumb mode when
marking the end of the section.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157062 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agofix warnings when compiling with -Wshadow
Nick Kledzik [Fri, 18 May 2012 18:39:06 +0000 (18:39 +0000)]
fix warnings when compiling with -Wshadow

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157061 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemove duplicate code that we could just fallthrough to.
Eric Christopher [Fri, 18 May 2012 18:24:15 +0000 (18:24 +0000)]
Remove duplicate code that we could just fallthrough to.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157060 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSimplify RegisterCoalescer::copyCoalesceInMBB().
Jakob Stoklund Olesen [Fri, 18 May 2012 18:21:48 +0000 (18:21 +0000)]
Simplify RegisterCoalescer::copyCoalesceInMBB().

It is no longer necessary to separate VirtCopies, PhysCopies, and
ImpDefCopies. Implicitly defined copies are extremely rare after we
added the ProcessImplicitDefs pass, and physical register copies are not
joined any longer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157059 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoadd test case for bugfix in r157032
Nuno Lopes [Fri, 18 May 2012 17:44:58 +0000 (17:44 +0000)]
add test case for bugfix in r157032

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157058 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd support for the mips 'x' inline asm modifier.
Eric Christopher [Fri, 18 May 2012 17:39:35 +0000 (17:39 +0000)]
Add support for the mips 'x' inline asm modifier.

Patch by Jack Carter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157057 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemove support for PhysReg joining.
Jakob Stoklund Olesen [Fri, 18 May 2012 17:18:58 +0000 (17:18 +0000)]
Remove support for PhysReg joining.

This has been disabled for a while, and it is not a feature we want to
support. Copies between physical and virtual registers are eliminated by
good hinting support in the register allocator. Joining virtual and
physical registers is really a form of register allocation, and the
coalescer is not properly equipped to do that. In particular, it cannot
backtrack coalescing decisions, and sometimes that would cause it to
create programs that were impossible to register allocate, by exhausting
a small register class.

It was also very difficult to keep track of the live ranges of aliasing
registers when extending the live range of a physreg. By disabling
physreg joining, we can let fixed physreg live ranges remain constant
throughout the register allocator super-pass.

One type of physreg joining remains: A virtual register that has a
single value which is a copy of a reserved register can be merged into
the reserved physreg. This always lowers register pressure, and since we
don't compute live ranges for reserved registers, there are no problems
with aliases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157055 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFileCheck-ify, apropos of nothing
Joel Jones [Fri, 18 May 2012 16:24:01 +0000 (16:24 +0000)]
FileCheck-ify, apropos of nothing

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157051 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRecommited reworked r156804:
Stepan Dyatkovskiy [Fri, 18 May 2012 08:32:28 +0000 (08:32 +0000)]
Recommited reworked r156804:
SelectionDAGBuilder::Clusterify : main functinality was replaced with CRSBuilder::optimize, so big part of Clusterify's code was reduced.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157046 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSimplify code a bit. No functional change intended.
Craig Topper [Fri, 18 May 2012 07:07:36 +0000 (07:07 +0000)]
Simplify code a bit. No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157044 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSimplify handling of v16i8 shuffles and fix a missed optimization.
Craig Topper [Fri, 18 May 2012 06:42:06 +0000 (06:42 +0000)]
Simplify handling of v16i8 shuffles and fix a missed optimization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157043 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoTeach two-address pass to update the "source" map so it doesn't perform a
Evan Cheng [Fri, 18 May 2012 01:33:51 +0000 (01:33 +0000)]
Teach two-address pass to update the "source" map so it doesn't perform a
non-profitable commute using outdated info. The test case would still fail
because of poor pre-RA schedule. That will be fixed by MI scheduler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157038 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoTemporarily disabled the MCJIT tests for Darwin, because the RuntimeDyldMachO has...
Danil Malyshev [Fri, 18 May 2012 00:30:58 +0000 (00:30 +0000)]
Temporarily disabled the MCJIT tests for Darwin, because the RuntimeDyldMachO has a problems with relocations for 32bit x86.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157035 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoClarify comment.
Eric Christopher [Fri, 18 May 2012 00:16:22 +0000 (00:16 +0000)]
Clarify comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157033 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agofix corner case in ConstantRange::intersectWith().
Nuno Lopes [Fri, 18 May 2012 00:14:36 +0000 (00:14 +0000)]
fix corner case in ConstantRange::intersectWith().
this fixes the missed optimization I was seeing in the CorrelatedValuePropagation pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157032 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFixed a bug in llvm-objdump when disassembling using -macho option for a binary
Kevin Enderby [Fri, 18 May 2012 00:13:56 +0000 (00:13 +0000)]
Fixed a bug in llvm-objdump when disassembling using -macho option for a binary
containing no symbols.  Fixed the crash and fixed it not disassembling anything.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157031 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemove a test that was only testing for physreg joining.
Jakob Stoklund Olesen [Fri, 18 May 2012 00:07:14 +0000 (00:07 +0000)]
Remove a test that was only testing for physreg joining.

This is the same as the other tests: Clever tricks are required to make
the arguments and return value line up in a single-instruction function.
It rarely happens in real life.

We have plenty other examples of this behavior.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157030 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemove -join-physregs from the test suite.
Jakob Stoklund Olesen [Thu, 17 May 2012 23:44:19 +0000 (23:44 +0000)]
Remove -join-physregs from the test suite.

This option has been disabled for a while, and it is going away so I can
clean up the coalescer code.

The tests that required physreg joining to be enabled were almost all of
the form "tiny function with interference between arguments and return
value". Such functions are usually inlined in the real world.

The problem exposed by phys_subreg_coalesce-3.ll is real, but fairly

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157027 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agominor simplification in the call to ConstantRange constructor
Nuno Lopes [Thu, 17 May 2012 23:04:08 +0000 (23:04 +0000)]
minor simplification in the call to ConstantRange constructor

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157024 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agocomments
Andrew Trick [Thu, 17 May 2012 22:37:09 +0000 (22:37 +0000)]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157020 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix the encoding of the armv7m (MClass) for MSR APSR writes which was missing
Kevin Enderby [Thu, 17 May 2012 22:18:01 +0000 (22:18 +0000)]
Fix the encoding of the armv7m (MClass) for MSR APSR writes which was missing
the 0b10 mask encoding bits.  Make MSR APSR writes without a _<bits> qualifier
an alias for MSR APSR_nzcvq even though ARM as deprecated it use.  Also add
support for suffixes (_nzcvq, _g, _nzcvqg) for APSR versions.  Some FIXMEs in
the code for better error checking when versions shouldn't be used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157019 91177308-0d34-0410-b5e6-96231b3b80d8

11 years ago- Added ExecutionEngine/MCJIT tests
Danil Malyshev [Thu, 17 May 2012 21:07:47 +0000 (21:07 +0000)]
- Added ExecutionEngine/MCJIT tests
- Added HOST_ARCH to Makefile.config.in
The HOST_ARCH will be used by MCJIT tests filter, because MCJIT supported only x86 and ARM architectures now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157015 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemove extraneous ';'.
Bill Wendling [Thu, 17 May 2012 20:27:58 +0000 (20:27 +0000)]
Remove extraneous ';'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157011 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agomisched: trace ReadyQ.
Andrew Trick [Thu, 17 May 2012 18:35:13 +0000 (18:35 +0000)]
misched: trace ReadyQ.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157007 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agomisched: Added 3-level regpressure back-off.
Andrew Trick [Thu, 17 May 2012 18:35:10 +0000 (18:35 +0000)]
misched: Added 3-level regpressure back-off.

Introduce the basic strategy for register pressure scheduling.

1) Respect target limits at all times.

2) Indentify critical register classes (pressure sets).
   Track pressure within the scheduled region.
   Avoid increasing scheduled pressure for critical registers.

3) Avoid exceeding the max pressure of the region prior to scheduling.

Added logic for picking between the top and bottom ready Q's based on
regpressure heuristics.

Status: functional but needs to be asjusted to achieve good results.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157006 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agocomment
Andrew Trick [Thu, 17 May 2012 18:35:07 +0000 (18:35 +0000)]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157005 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoregpressure: Fix getMaxUpwardPressureDelta.
Andrew Trick [Thu, 17 May 2012 18:35:05 +0000 (18:35 +0000)]
regpressure: Fix getMaxUpwardPressureDelta.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157004 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agomisched: fix liveness iterators
Andrew Trick [Thu, 17 May 2012 18:35:03 +0000 (18:35 +0000)]
misched: fix liveness iterators

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157003 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agowhitespace
Andrew Trick [Thu, 17 May 2012 18:35:00 +0000 (18:35 +0000)]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157002 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoNever clear <undef> flags on already joined copies.
Jakob Stoklund Olesen [Thu, 17 May 2012 18:32:42 +0000 (18:32 +0000)]
Never clear <undef> flags on already joined copies.

RegisterCoalescer set <undef> flags on all operands of copy instructions
that are scheduled to be removed. This is so they won't affect
shrinkToUses() by introducing false register reads.

Make sure those <undef> flags are never cleared, or shrinkToUses() could
cause live intervals to end at instructions about to be deleted.

This would be a lot simpler if RegisterCoalescer could just erase joined
copies immediately instead of keeping all the to-be-deleted instructions

This fixes PR12862. Unfortunately, bugpoint can't create a sane test
case for this. Like many other coalescer problems, this failure depends
of a very fragile series of events.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157001 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix a verifier bug.
Jakob Stoklund Olesen [Thu, 17 May 2012 18:32:40 +0000 (18:32 +0000)]
Fix a verifier bug.

Make sure useless (def-only) intervals also get verified.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157000 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRelax the requirement that the exception object must be an instruction. During
Bill Wendling [Thu, 17 May 2012 17:59:51 +0000 (17:59 +0000)]
Relax the requirement that the exception object must be an instruction. During
bugpoint-ing, it may turn into something else.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156998 91177308-0d34-0410-b5e6-96231b3b80d8

11 years ago[Hexagon] Clean up Hexagon ELF definition.
Evandro Menezes [Thu, 17 May 2012 16:46:46 +0000 (16:46 +0000)]
[Hexagon] Clean up Hexagon ELF definition.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156996 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoenhance the intrinsic info stuff to emit encodings that don't fit in 32-bits into a
Chris Lattner [Thu, 17 May 2012 15:55:41 +0000 (15:55 +0000)]
enhance the intrinsic info stuff to emit encodings that don't fit in 32-bits into a
separate side table, using the handy SequenceToOffsetTable class.  This encodes all
these weird things into another 256 bytes, allowing all intrinsics to be encoded this way.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156995 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemove incorrect pattern for ARM SMML instruction.
Tim Northover [Thu, 17 May 2012 13:12:13 +0000 (13:12 +0000)]
Remove incorrect pattern for ARM SMML instruction.

Patch by Meador Inge.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156989 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix compile error.
Manuel Klimek [Thu, 17 May 2012 09:32:05 +0000 (09:32 +0000)]
Fix compile error.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156986 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSelectionDAGBuilder: CaseBlock, CaseRanges and CaseCmp changed representation of...
Stepan Dyatkovskiy [Thu, 17 May 2012 08:56:30 +0000 (08:56 +0000)]
SelectionDAGBuilder: CaseBlock, CaseRanges and CaseCmp changed representation of Low and High from signed to unsigned. Since unsigned ints usually simpler, faster and allows to reduce some extra signed bit checks needed before <,>,<=,>= comparisons.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156985 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoGenericize the intrinsics descriptor decoding a bit to make room
Chris Lattner [Thu, 17 May 2012 05:13:57 +0000 (05:13 +0000)]
Genericize the intrinsics descriptor decoding a bit to make room
for future expansion, no functionality change yet though.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156979 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agofinish encoding all of the interesting details of intrinsics. Now intrinsics
Chris Lattner [Thu, 17 May 2012 05:03:24 +0000 (05:03 +0000)]
finish encoding all of the interesting details of intrinsics.  Now intrinsics
are only rejected because they can't be encoded into a 32-bit unit, not because
they contain an unencodable feature.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156978 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agostrengthen the intrinsic descriptor stuff to be able to handle sin, cos and other
Chris Lattner [Thu, 17 May 2012 04:30:58 +0000 (04:30 +0000)]
strengthen the intrinsic descriptor stuff to be able to handle sin, cos and other
intrinsics that use passed-in arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156977 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agosimplify code generated by tblgen that is not necessary since we dropped
Chris Lattner [Thu, 17 May 2012 04:07:48 +0000 (04:07 +0000)]
simplify code generated by tblgen that is not necessary since we dropped
compatibility with LLVM 2.x bitcode files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156976 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoI forgot the #ifdef _MSC_VER guard in my last commit.
Francois Pichet [Thu, 17 May 2012 04:00:03 +0000 (04:00 +0000)]
I forgot the #ifdef _MSC_VER guard in my last commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156975 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix the MSVC 2010 build: disable the optimizer for a problematic function.
Francois Pichet [Thu, 17 May 2012 03:38:19 +0000 (03:38 +0000)]
Fix the MSVC 2010 build: disable the optimizer for a problematic function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156973 91177308-0d34-0410-b5e6-96231b3b80d8