oota-llvm.git
12 years agoLower RETURNADDR node in Mips backend.
Akira Hatanaka [Wed, 11 Jul 2012 00:53:32 +0000 (00:53 +0000)]
Lower RETURNADDR node in Mips backend.

Patch by Sasa Stankovic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160031 91177308-0d34-0410-b5e6-96231b3b80d8

12 years ago Mips specific inline asm operand modifier 'L'.
Jack Carter [Tue, 10 Jul 2012 22:41:20 +0000 (22:41 +0000)]
   Mips specific inline asm operand modifier 'L'.

   Low order register of a double word register operand. Operands
   are defined by the name of the variable they are marked with in
   the inline assembler code. This is a way to specify that the
   operand just refers to the low order register for that variable.

   It is the opposite of modifier 'D' which specifies the high order
   register.

   Example:

 main()
{

    long long ll_input = 0x1111222233334444LL;
    long long ll_val = 3;
    int i_result = 0;

    __asm__ __volatile__(
   "or %0, %L1, %2"
     : "=r" (i_result)
     : "r" (ll_input), "r" (ll_val));
}

   Which results in:

    lui $2, %hi(_gp_disp)
addiu $2, $2, %lo(_gp_disp)
addiu $sp, $sp, -8
addu $2, $2, $25
sw $2, 0($sp)
lui $2, 13107
ori $3, $2, 17476     <-- Low 32 bits of ll_input
lui $2, 4369
ori $4, $2, 8738      <-- High 32 bits of ll_input
addiu $5, $zero, 3  <-- Low 32 bits of ll_val
addiu $2, $zero, 0  <-- High 32 bits of ll_val
#APP
or $3, $4, $5        <-- or i_result, high 32 ll_input, low 32 of ll_val
#NO_APP
addiu $sp, $sp, 8
jr $ra

If not direction is done for the long long for 32 bit variables results
in using the low 32 bits as ll_val shows.

There is an existing bug if 'L' or 'D' is used for the destination register
for 32 bit long longs in that the target value will be updated incorrectly
for the non-specified part unless explicitly set within the inline asm code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160028 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRequire and preserve LoopInfo for early if-conversion.
Jakob Stoklund Olesen [Tue, 10 Jul 2012 22:39:56 +0000 (22:39 +0000)]
Require and preserve LoopInfo for early if-conversion.

It will surely be needed by heuristics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160027 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoTeach the LiveInterval::join function to use the fast merge algorithm,
Chandler Carruth [Tue, 10 Jul 2012 22:25:21 +0000 (22:25 +0000)]
Teach the LiveInterval::join function to use the fast merge algorithm,
generalizing its implementation sufficiently to support this value
number scenario as well.

This cuts out another significant performance hit in large functions
(over 10k basic blocks, etc), especially those with "natural" CFG
structures.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160026 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRun early if-conversion in domtree post-order.
Jakob Stoklund Olesen [Tue, 10 Jul 2012 22:18:23 +0000 (22:18 +0000)]
Run early if-conversion in domtree post-order.

This ordering allows nested if-conversion without using a work list, and
it makes it possible to update the dominator tree on the fly as well.

Any erased basic blocks will always be dominated by the current
post-order position, so the domtree can be pruned without invalidating
the iterator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160025 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoMove [get|set]BasePtrStackAdjustment() from MachineFrameInfo to
Chad Rosier [Tue, 10 Jul 2012 18:27:15 +0000 (18:27 +0000)]
Move [get|set]BasePtrStackAdjustment() from MachineFrameInfo to
X86MachineFunctionInfo as this is currently only used by X86. If this ever
becomes an issue on another arch (e.g., ARM) then we can hoist it back out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160009 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd newline.
Chad Rosier [Tue, 10 Jul 2012 17:57:00 +0000 (17:57 +0000)]
Add newline.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160006 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd test case accidentally omitted from r160002.
Chad Rosier [Tue, 10 Jul 2012 17:49:39 +0000 (17:49 +0000)]
Add test case accidentally omitted from r160002.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160004 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd support for dynamic stack realignment in the presence of dynamic allocas on
Chad Rosier [Tue, 10 Jul 2012 17:45:53 +0000 (17:45 +0000)]
Add support for dynamic stack realignment in the presence of dynamic allocas on
X86.  Basically, this is a reapplication of r158087 with a few fixes.

Specifically, (1) the stack pointer is restored from the base pointer before
popping callee-saved registers and (2) in obscure cases (see comments in patch)
we must cache the value of the original stack adjustment in the prologue and
apply it in the epilogue.

rdar://11496434

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160002 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix a bug where I didn't test for an empty range before inspecting the
Chandler Carruth [Tue, 10 Jul 2012 15:41:33 +0000 (15:41 +0000)]
Fix a bug where I didn't test for an empty range before inspecting the
back of it.

I don't have anything even remotely close to a test case for this. It
only broke two build bots, both of them doing bootstrap builds, one of
them a dragonegg bootstrap. It doesn't break for me when I bootstrap
either. It doesn't reproduce every time or on many machines during the
bootstrap. Many thanks to Duncan Sands who got the exact command (and
stage of the bootstrap) which failed on the dragonegg bootstrap and
managed to get it to trigger under valgrind with debug symbols. The fix
was then found by inspection.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159993 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoImprove the loading of load-anyext vectors by allowing the codegen to load
Nadav Rotem [Tue, 10 Jul 2012 13:25:08 +0000 (13:25 +0000)]
Improve the loading of load-anyext vectors by allowing the codegen to load
multiple scalars and insert them into a vector. Next, we shuffle the elements
into the correct places, as before.
Also fix a small dagcombine bug in SimplifyBinOpWithSameOpcodeHands, when the
migration of bitcasts happened too late in the SelectionDAG process.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159991 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix instruction description of VMOV (between two ARM core registers and two single...
Richard Barton [Tue, 10 Jul 2012 12:51:09 +0000 (12:51 +0000)]
Fix instruction description of VMOV (between two ARM core registers and two single-precision resiters) (and do it properly this time!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159989 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoReverse assembler/disassembler operand order for gather instructions.
Craig Topper [Tue, 10 Jul 2012 06:38:33 +0000 (06:38 +0000)]
Reverse assembler/disassembler operand order for gather instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159983 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd an efficient merge operation to LiveInterval and use it to avoid
Chandler Carruth [Tue, 10 Jul 2012 05:16:17 +0000 (05:16 +0000)]
Add an efficient merge operation to LiveInterval and use it to avoid
quadratic behavior when performing pathological merges. Fixes the core
element of PR12652.

There is only one user of addRangeFrom left: join. I'm hoping to
refactor further in a future patch and have join use this merge
operation as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159982 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoTeach LiveIntervals how to verify themselves and start using it in some
Chandler Carruth [Tue, 10 Jul 2012 05:06:03 +0000 (05:06 +0000)]
Teach LiveIntervals how to verify themselves and start using it in some
of the trick merge routines. This adds a layer of testing that was
necessary when implementing more efficient (and complex) merge logic for
this datastructure.

No functionality changed here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159981 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoARM: Allow more flexible patterns in NEON formats.
Jim Grosbach [Tue, 10 Jul 2012 00:51:13 +0000 (00:51 +0000)]
ARM: Allow more flexible patterns in NEON formats.

Some NEON instructions want to match against normal SDNodes for some
operand types and Intrinsics for others. For example, CTLZ. To enable this,
switch from explicitly requiring Intrinsic on the class templates to using
SDPatternOperator instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159974 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAllow intrinsics to be used in place of node matchables.
Jim Grosbach [Tue, 10 Jul 2012 00:51:11 +0000 (00:51 +0000)]
Allow intrinsics to be used in place of node matchables.

TableGen has support for using an intrinics name directly in a DAG,
but this breaks down when referring to just a node, as that's
handled initializer list stuff entirely via subclassing in the
parser. That is, using an instrinsic like "(int_my_intrinsic ...)"
works fine. Using it standalone for parameterizing the operator
in such a DAG does not.

Fixing this is simple enough, as we simply declare Intrinsic
as deriving from SDPatternOperator, which is the class name
intended for exactly this purpose in TargetSelectionDAG.td.

When the intrinsic is actually used in the DAG pattern, it will
be recognized and expanded to an intrinsic_wo_chain (et. al.)
just like when it's used directly.

Incoming ARM NEON cleanup based on this and a bit of functionality
improvement after that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159973 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoMake register Mips::RA allocatable if not in mips16 mode.
Akira Hatanaka [Tue, 10 Jul 2012 00:19:06 +0000 (00:19 +0000)]
Make register Mips::RA allocatable if not in mips16 mode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159971 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoDelete code for folding undefs in ScalarEvolution. It's invalid in
Dan Gohman [Mon, 9 Jul 2012 23:51:20 +0000 (23:51 +0000)]
Delete code for folding undefs in ScalarEvolution. It's invalid in
obscure ways, and it isn't actually important in the real world.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159969 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRevert r159938 (and r159945) to appease the buildbots.
Chad Rosier [Mon, 9 Jul 2012 20:43:34 +0000 (20:43 +0000)]
Revert r159938 (and r159945) to appease the buildbots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159960 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoMachine model: allow itineraries to be shared by different processor models.
Andrew Trick [Mon, 9 Jul 2012 20:43:03 +0000 (20:43 +0000)]
Machine model: allow itineraries to be shared by different processor models.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159959 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoindentation
Andrew Trick [Mon, 9 Jul 2012 20:43:01 +0000 (20:43 +0000)]
indentation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159958 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoTeach the DAG combiner to turn sitofp/uitofp from i1 into a conditional move, since...
Owen Anderson [Mon, 9 Jul 2012 20:31:12 +0000 (20:31 +0000)]
Teach the DAG combiner to turn sitofp/uitofp from i1 into a conditional move, since there are only two possible values.
Previously, this would become an integer extension operation, followed by a real integer->float conversion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159957 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoX86: implement functions to analyze & synthesize CMOV|SET|Jcc
Manman Ren [Mon, 9 Jul 2012 18:57:12 +0000 (18:57 +0000)]
X86: implement functions to analyze & synthesize CMOV|SET|Jcc
getCondFromSETOpc, getCondFromCMovOpc, getSETFromCond, getCMovFromCond

No functional change intended.
If we want to update the condition code of CMOV|SET|Jcc, we first analyze the
opcode to get the condition code, then update the condition code, finally
synthesize the new opcode form the new condition code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159955 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoReapply r158846.
Akira Hatanaka [Mon, 9 Jul 2012 18:46:47 +0000 (18:46 +0000)]
Reapply r158846.

Access mips register classes via MCRegisterInfo's functions instead of via the
TargetRegisterClasses defined in MipsGenRegisterInfo.inc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159953 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoinstcombine: merge the functions that remove dead allocas and dead mallocs/callocs/...
Nuno Lopes [Mon, 9 Jul 2012 18:38:20 +0000 (18:38 +0000)]
instcombine: merge the functions that remove dead allocas and dead mallocs/callocs/...
This patch removes ~70 lines in InstCombineLoadStoreAlloca.cpp and makes both functions a bit more aggressive than before :)
In theory, we can be more aggressive when removing an alloca than a malloc, because an alloca pointer should never escape, but we are not taking advantage of this anyway

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159952 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoSome formatting to keep Clang happy
Richard Barton [Mon, 9 Jul 2012 18:30:56 +0000 (18:30 +0000)]
Some formatting to keep Clang happy

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159948 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoOops - correct broken disassembly for VMOV
Richard Barton [Mon, 9 Jul 2012 18:20:02 +0000 (18:20 +0000)]
Oops - correct broken disassembly for VMOV

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159945 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix instruction description of VMOV (between two ARM core registers and two single...
Richard Barton [Mon, 9 Jul 2012 16:41:33 +0000 (16:41 +0000)]
Fix instruction description of VMOV (between two ARM core registers and two single-precision resiters)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159938 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoPrevent ARM assembler from losing a right shift by #32 applied to a register
Richard Barton [Mon, 9 Jul 2012 16:31:14 +0000 (16:31 +0000)]
Prevent ARM assembler from losing a right shift by #32 applied to a register

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159937 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoSpelling!
Richard Barton [Mon, 9 Jul 2012 16:14:28 +0000 (16:14 +0000)]
Spelling!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159936 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoTeach the assembler to use the narrow thumb encodings of various three-register dp...
Richard Barton [Mon, 9 Jul 2012 16:12:24 +0000 (16:12 +0000)]
Teach the assembler to use the narrow thumb encodings of various three-register dp instructions where permissable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159935 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove some trivial copy ctors so the classes become trivially copyable and get the...
Benjamin Kramer [Sun, 8 Jul 2012 19:47:51 +0000 (19:47 +0000)]
Remove some trivial copy ctors so the classes become trivially copyable and get the optimized SmallVector implementation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159916 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoSmallVector: Make use of move semantics to speed up moving objects in erase() and...
Benjamin Kramer [Sun, 8 Jul 2012 12:06:35 +0000 (12:06 +0000)]
SmallVector: Make use of move semantics to speed up moving objects in erase() and insert()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159914 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoI'm introducing a new machine model to simultaneously allow simple
Andrew Trick [Sat, 7 Jul 2012 04:00:00 +0000 (04:00 +0000)]
I'm introducing a new machine model to simultaneously allow simple
subtarget CPU descriptions and support new features of
MachineScheduler.

MachineModel has three categories of data:
1) Basic properties for coarse grained instruction cost model.
2) Scheduler Read/Write resources for simple per-opcode and operand cost model (TBD).
3) Instruction itineraties for detailed per-cycle reservation tables.

These will all live side-by-side. Any subtarget can use any
combination of them. Instruction itineraries will not change in the
near term. In the long run, I expect them to only be relevant for
in-order VLIW machines that have complex contraints and require a
precise scheduling/bundling model. Once itineraries are only actively
used by VLIW-ish targets, they could be replaced by something more
appropriate for those targets.

This tablegen backend rewrite sets things up for introducing
MachineModel type #2: per opcode/operand cost model.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159891 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agowhitespace
Andrew Trick [Sat, 7 Jul 2012 03:59:51 +0000 (03:59 +0000)]
whitespace

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159890 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoTweak spelling.
Andrew Trick [Sat, 7 Jul 2012 03:59:48 +0000 (03:59 +0000)]
Tweak spelling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159889 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoX86: Fix optimizeCompare to correctly check safe condition.
Manman Ren [Sat, 7 Jul 2012 03:34:46 +0000 (03:34 +0000)]
X86: Fix optimizeCompare to correctly check safe condition.

It is safe if EFLAGS is killed or re-defined.
When we are done with the basic block, check whether EFLAGS is live-out.
Do not optimize away cmp if EFLAGS is live-out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159888 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoLLVMConfig.cmake.in: Quote around @LLVM_INSTALL_PREFIX@, or it would not accept white...
NAKAMURA Takumi [Sat, 7 Jul 2012 03:12:28 +0000 (03:12 +0000)]
LLVMConfig.cmake.in: Quote around @LLVM_INSTALL_PREFIX@, or it would not accept whitespace paths.

Thanks to Kai.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159887 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoUse the DebugInfo wrappers instead of mucking about with the MDNode directly.
Bill Wendling [Sat, 7 Jul 2012 00:52:35 +0000 (00:52 +0000)]
Use the DebugInfo wrappers instead of mucking about with the MDNode directly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159881 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoPrint the name last.
Bill Wendling [Fri, 6 Jul 2012 23:43:12 +0000 (23:43 +0000)]
Print the name last.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159879 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix the naming of ensureAlignment. Per the coding standard function names
Chad Rosier [Fri, 6 Jul 2012 23:13:38 +0000 (23:13 +0000)]
Fix the naming of ensureAlignment.  Per the coding standard function names
should be camel case, and start with a lower case letter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159877 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoteach instcombine to remove allocated buffers even if there are stores, memcpy/memmov...
Nuno Lopes [Fri, 6 Jul 2012 23:09:25 +0000 (23:09 +0000)]
teach instcombine to remove allocated buffers even if there are stores, memcpy/memmove/memset, and objectsize users.
This means we can do cheap DSE for heap memory.
Nothing is done if the pointer excapes or has a load.

The churn in the tests is mostly due to objectsize, since we want to make sure we
don't delete the malloc call before evaluating the objectsize (otherwise it becomes -1/0)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159876 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoSince SmallMap was removed in r158644, remove documentation in ProgrammersManual...
Dmitri Gribenko [Fri, 6 Jul 2012 23:06:47 +0000 (23:06 +0000)]
Since SmallMap was removed in r158644, remove documentation in ProgrammersManual.html.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159874 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoCheck if it's a scope last, because several things are scopes.
Bill Wendling [Fri, 6 Jul 2012 23:06:16 +0000 (23:06 +0000)]
Check if it's a scope last, because several things are scopes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159873 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoARM: Add test cleanup entry to the README.
Jim Grosbach [Fri, 6 Jul 2012 21:52:04 +0000 (21:52 +0000)]
ARM: Add test cleanup entry to the README.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159864 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agorevert r159851.
Akira Hatanaka [Fri, 6 Jul 2012 20:16:48 +0000 (20:16 +0000)]
revert r159851.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159854 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoReapply r158846.
Akira Hatanaka [Fri, 6 Jul 2012 19:29:11 +0000 (19:29 +0000)]
Reapply r158846.

Include file MipsGenRegisterInfo.inc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159851 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd a print method to the ObjC property object.
Bill Wendling [Fri, 6 Jul 2012 19:12:31 +0000 (19:12 +0000)]
Add a print method to the ObjC property object.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159848 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove trailing comma in array initialization list.
Bill Wendling [Fri, 6 Jul 2012 17:49:19 +0000 (17:49 +0000)]
Remove trailing comma in array initialization list.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159843 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove unnecessary 'llvm::'.
Bill Wendling [Fri, 6 Jul 2012 17:47:36 +0000 (17:47 +0000)]
Remove unnecessary 'llvm::'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159842 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove unnecessary 'llvm::'.
Bill Wendling [Fri, 6 Jul 2012 17:46:28 +0000 (17:46 +0000)]
Remove unnecessary 'llvm::'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159841 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoWhitespace.
Chad Rosier [Fri, 6 Jul 2012 17:44:22 +0000 (17:44 +0000)]
Whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159839 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoX86: peephole optimization to remove cmp instruction
Manman Ren [Fri, 6 Jul 2012 17:36:20 +0000 (17:36 +0000)]
X86: peephole optimization to remove cmp instruction

For each Cmp, we check whether there is an earlier Sub which make Cmp
redundant. We handle the case where SUB operates on the same source operands as
Cmp, including the case where the two source operands are swapped.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159838 91177308-0d34-0410-b5e6-96231b3b80d8

12 years ago[fast-isel] Tell fast-isel to do nothing with the new donothing intrinsic.
Chad Rosier [Fri, 6 Jul 2012 17:33:39 +0000 (17:33 +0000)]
[fast-isel] Tell fast-isel to do nothing with the new donothing intrinsic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159837 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoUpdate getFunction parameter documentation. Fixes PR13268.
Chad Rosier [Fri, 6 Jul 2012 17:15:03 +0000 (17:15 +0000)]
Update getFunction parameter documentation. Fixes PR13268.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159835 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRevert r159789.
Dmitri Gribenko [Fri, 6 Jul 2012 16:42:25 +0000 (16:42 +0000)]
Revert r159789.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159834 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agollvm/include/llvm/CMakeLists.txt: Cut dependency to intrinsics_gen.
NAKAMURA Takumi [Fri, 6 Jul 2012 15:55:39 +0000 (15:55 +0000)]
llvm/include/llvm/CMakeLists.txt: Cut dependency to intrinsics_gen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159831 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAttempt to fix windows buildbots. Patch by James Benton.
Duncan Sands [Fri, 6 Jul 2012 14:43:16 +0000 (14:43 +0000)]
Attempt to fix windows buildbots.  Patch by James Benton.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159826 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agotest/CodeGen/X86/sext-setcc-self.ll: Mark it as XFAIL: cygwin,mingw32,win32. Investig...
NAKAMURA Takumi [Fri, 6 Jul 2012 12:12:39 +0000 (12:12 +0000)]
test/CodeGen/X86/sext-setcc-self.ll: Mark it as XFAIL: cygwin,mingw32,win32. Investigating.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159820 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRevert r159804, "[arm-fast-isel] Add support for vararg function calls."
NAKAMURA Takumi [Fri, 6 Jul 2012 11:12:44 +0000 (11:12 +0000)]
Revert r159804, "[arm-fast-isel] Add support for vararg function calls."

It broke LLVM :: CodeGen/Thumb2/large-call.ll on several hosts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159817 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix PR13202 and a regtest.
Alexey Samsonov [Fri, 6 Jul 2012 08:45:08 +0000 (08:45 +0000)]
Fix PR13202 and a regtest.
DwarfDebug class could generate the same (inlined) DIVariable twice:
1) when trying to find abstract debug variable for a concrete inlined instance.
2) when explicitly collecting info for variables that were optimized out.

This change makes sure that this duplication won't happen and makes
Clang pass "gdb.opt/inline-locals" test from gdb testsuite.

Reviewed by Eric Christopher.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159811 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoSphinxify the CMake document.
Bill Wendling [Fri, 6 Jul 2012 05:51:50 +0000 (05:51 +0000)]
Sphinxify the CMake document.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159806 91177308-0d34-0410-b5e6-96231b3b80d8

12 years ago[arm-fast-isel] Add support for vararg function calls.
Jush Lu [Fri, 6 Jul 2012 03:02:37 +0000 (03:02 +0000)]
[arm-fast-isel] Add support for vararg function calls.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159804 91177308-0d34-0410-b5e6-96231b3b80d8

12 years ago Changes per review of commit 159787
Jack Carter [Fri, 6 Jul 2012 02:44:22 +0000 (02:44 +0000)]
   Changes per review of commit 159787

   Mips specific inline asm operand modifier D.

   Comment changes and predicate change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159802 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoUntabify and move a function near similar functions dealing with struct
Eric Christopher [Fri, 6 Jul 2012 02:35:57 +0000 (02:35 +0000)]
Untabify and move a function near similar functions dealing with struct
types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159801 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd some comments suggested in code review.
Jakob Stoklund Olesen [Fri, 6 Jul 2012 02:31:22 +0000 (02:31 +0000)]
Add some comments suggested in code review.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159800 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoEnable new[] on llvm::BumpPtrAllocator.
Dmitri Gribenko [Fri, 6 Jul 2012 00:25:39 +0000 (00:25 +0000)]
Enable new[] on llvm::BumpPtrAllocator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159789 91177308-0d34-0410-b5e6-96231b3b80d8

12 years ago Mips specific inline asm operand modifier D.
Jack Carter [Thu, 5 Jul 2012 23:58:21 +0000 (23:58 +0000)]
   Mips specific inline asm operand modifier D.

   Print the second half of a double word operand.

   The include list was cleaned up a bit as well.

   Also the test case was modified to test for both
   big and little patterns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159787 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix an overzealous assertion. It is legitimate for a target to have multiple fixups...
Owen Anderson [Thu, 5 Jul 2012 22:30:42 +0000 (22:30 +0000)]
Fix an overzealous assertion.  It is legitimate for a target to have multiple fixups on a single instruction that target the same byte, so long as their bit-offsets are coordinates appropriately.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159785 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agotest case for r159770.
Akira Hatanaka [Thu, 5 Jul 2012 19:29:31 +0000 (19:29 +0000)]
test case for r159770.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159771 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoEnclose instruction rdhwr with directives, which are needed when target is
Akira Hatanaka [Thu, 5 Jul 2012 19:26:38 +0000 (19:26 +0000)]
Enclose instruction rdhwr with directives, which are needed when target is
mips32 rev1 (the directives are emitted when target is mips32r2 too).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159770 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoEnable target dependent directive parsing to hook before standard parser in
Akira Hatanaka [Thu, 5 Jul 2012 19:09:33 +0000 (19:09 +0000)]
Enable target dependent directive parsing to hook before standard parser in
AsmParser::ParseStatement.

Patch by Vladimir Medic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159768 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoadd @llvm.donothing
Nuno Lopes [Thu, 5 Jul 2012 17:37:07 +0000 (17:37 +0000)]
add @llvm.donothing

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159758 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoOptimize extendIntervalEndTo a tiny bit by saving one call through the
Chandler Carruth [Thu, 5 Jul 2012 12:40:45 +0000 (12:40 +0000)]
Optimize extendIntervalEndTo a tiny bit by saving one call through the
vector erase. No functionality changed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159746 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove dead infrastructure for building DenseMaps with a SlotIndex as
Chandler Carruth [Thu, 5 Jul 2012 11:40:23 +0000 (11:40 +0000)]
Remove dead infrastructure for building DenseMaps with a SlotIndex as
the key -- they are now stored in an IntervalMap.

I noticed this while looking into PR12652.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159745 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFinish fixing the MachineOperand hashing, providing a nice modern
Chandler Carruth [Thu, 5 Jul 2012 11:06:22 +0000 (11:06 +0000)]
Finish fixing the MachineOperand hashing, providing a nice modern
hash_value overload for MachineOperands. This addresses a FIXME
sufficient for me to remove it, and cleans up the code nicely too.

The important changes to the hashing logic:
- TargetFlags are now included in all of the hashes. These were complete
  missed.
- Register operands have their subregisters and whether they are a def
  included in the hash.
- We now actually hash all of the operand types. Previously, many
  operand types were simply *dropped on the floor*. For example:
  - Floating point immediates
  - Large integer immediates (>64-bit)
  - External globals!
  - Register masks
  - Metadata operands
- It removes the offset from the block-address hash; I'm a bit
  suspicious of this, but isIdenticalTo doesn't consider the offset for
  black addresses.

Any patterns involving these entities could have triggered extreme
slowdowns in MachineCSE or PHIElimination. Let me know if there are PRs
you think might be closed now... I'm looking myself, but I may miss
them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159743 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAll cases are covered, no need for a default. This deals with the
Duncan Sands [Thu, 5 Jul 2012 10:14:33 +0000 (10:14 +0000)]
All cases are covered, no need for a default.  This deals with the
corresponding clang warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159742 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoThe hash function for MI expressions, used by MachineCSE, is really
Chandler Carruth [Thu, 5 Jul 2012 10:03:57 +0000 (10:03 +0000)]
The hash function for MI expressions, used by MachineCSE, is really
broken. This patch fixes the superficial problems which lead to the
intractably slow compile times reported in PR13225.

The specific issue is that we were failing to include the *offset* of
a global variable in the hash code. Oops. This would in turn cause all
MIs which were only distinguishable due to operating on different
offsets of a global variable to produce identical hash functions. In
some of the test cases attached to the PR I saw hash table activity
where there were O(1000) probes-per-lookup *on average*. A very few
entries were responsible for most of these probes.

There is still quite a bit more to do here. The ad-hoc layering of data
in MachineOperands makes them *extremely* brittle to hash correctly.
We're missing quite a few other cases, the only ones I've fixed here are
the specific MO types which were allowed through the assert() in
getOffset().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159741 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoUse the right kind of booleans: we were emitting 0/1 booleans, instead of 0/-1
Duncan Sands [Thu, 5 Jul 2012 09:32:46 +0000 (09:32 +0000)]
Use the right kind of booleans: we were emitting 0/1 booleans, instead of 0/-1
booleans.  Patch by James Benton.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159739 91177308-0d34-0410-b5e6-96231b3b80d8

12 years ago[tsan] fix compile-time falilure found while building Chromium with tsan (tsan issue...
Kostya Serebryany [Thu, 5 Jul 2012 09:07:31 +0000 (09:07 +0000)]
[tsan] fix compile-time falilure found while building Chromium with tsan (tsan issue #3). A unit test will follow separately.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159736 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove ParentMap. You can just ask the domnode for its parent. No functionality
Nick Lewycky [Thu, 5 Jul 2012 06:19:21 +0000 (06:19 +0000)]
Remove ParentMap. You can just ask the domnode for its parent. No functionality
change.

Move the "Not profitable, avoid CSE!" debug message next to where we fail the
check for profitability and use a different message for avoiding CSE due to
being in different register classes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159729 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoMake X86 call and return instructions non-variadic.
Jakob Stoklund Olesen [Wed, 4 Jul 2012 23:53:27 +0000 (23:53 +0000)]
Make X86 call and return instructions non-variadic.

Function argument and return value registers aren't part of the
encoding, so they should be implicit operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159728 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAllow trailing physreg RegisterSDNode operands on non-variadic instructions.
Jakob Stoklund Olesen [Wed, 4 Jul 2012 23:53:23 +0000 (23:53 +0000)]
Allow trailing physreg RegisterSDNode operands on non-variadic instructions.

Also allow trailing register mask operands on non-variadic both
MachineSDNodes and MachineInstrs.

The extra physreg RegisterSDNode operands are added to the MI as
<imp-use> operands. This makes it possible to have non-variadic call
instructions.

Call and return instructions really are non-variadic, the argument
registers should only be used implicitly - they are not part of the
encoding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159727 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoPrint SlotIndexes when available for -print-machineinstrs.
Jakob Stoklund Olesen [Wed, 4 Jul 2012 23:53:19 +0000 (23:53 +0000)]
Print SlotIndexes when available for -print-machineinstrs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159726 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAllow multiple terminators to read virtual registers.
Jakob Stoklund Olesen [Wed, 4 Jul 2012 19:52:05 +0000 (19:52 +0000)]
Allow multiple terminators to read virtual registers.

Find the kill as the last terminator to read SrcReg.

Patch by Philipp Brüschweiler!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159722 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoEnsure CopyToReg nodes are always glued to the call instruction.
Jakob Stoklund Olesen [Wed, 4 Jul 2012 19:28:31 +0000 (19:28 +0000)]
Ensure CopyToReg nodes are always glued to the call instruction.

The CopyToReg nodes that set up the argument registers before a call
must be glued to the call instruction. Otherwise, the scheduler may emit
the physreg copies long before the call, causing long live ranges for
the fixed registers.

Besides disabling good register allocation, that can also expose
problems when EmitInstrWithCustomInserter() splits a basic block during
the live range of a physreg.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159721 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoMake sure -print-machineinstrs applies to the first pass as well.
Jakob Stoklund Olesen [Wed, 4 Jul 2012 19:28:27 +0000 (19:28 +0000)]
Make sure -print-machineinstrs applies to the first pass as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159720 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd a testcase for pr13209. It is not a great test, but it still fails if
Rafael Espindola [Wed, 4 Jul 2012 16:06:00 +0000 (16:06 +0000)]
Add a testcase for pr13209. It is not a great test, but it still fails if
159509 and 159479 are reverted. It would be really nice to be able to run
just the coalescer :-(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159715 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix a bug in DebugInfo lib, extend a comment for one of the methods
Alexey Samsonov [Wed, 4 Jul 2012 09:42:54 +0000 (09:42 +0000)]
Fix a bug in DebugInfo lib, extend a comment for one of the methods

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159707 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoReverted r159658:
Stepan Dyatkovskiy [Wed, 4 Jul 2012 06:07:06 +0000 (06:07 +0000)]
Reverted r159658:
Optimized diff operation: implemented the case when LHS and RHS subsets contains single numbers only.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159704 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoReverted r156659, due to probable performance regressions, DenseMap should be used...
Stepan Dyatkovskiy [Wed, 4 Jul 2012 05:53:05 +0000 (05:53 +0000)]
Reverted r156659, due to probable performance regressions, DenseMap should be used here:
  IntegersSubsetMapping
  - Replaced type of Items field from std::list with std::map. In neares future I'll test it with DenseMap and do the correspond replacement
    if possible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159703 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoReduce some code duplication.
Eric Christopher [Wed, 4 Jul 2012 02:02:18 +0000 (02:02 +0000)]
Reduce some code duplication.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159701 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix some ascii art in a comment to not have trailing backslashes (inspiration
Matt Beaumont-Gay [Wed, 4 Jul 2012 01:09:45 +0000 (01:09 +0000)]
Fix some ascii art in a comment to not have trailing backslashes (inspiration
from IfConversion.cc), and fix some spelling and grammar in the surrounding
prose.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159699 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd early if-conversion support to X86.
Jakob Stoklund Olesen [Wed, 4 Jul 2012 00:09:58 +0000 (00:09 +0000)]
Add early if-conversion support to X86.

Implement the TII hooks needed by EarlyIfConversion to create cmov
instructions and estimate their latency.

Early if-conversion is still not enabled by default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159695 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd an experimental early if-conversion pass, off by default.
Jakob Stoklund Olesen [Wed, 4 Jul 2012 00:09:54 +0000 (00:09 +0000)]
Add an experimental early if-conversion pass, off by default.

This pass performs if-conversion on SSA form machine code by
speculatively executing both sides of the branch and using a cmov
instruction to select the result. This can help lower the number of
branch mispredictions on architectures like x86 that don't have
predicable instructions.

The current implementation is very aggressive, and causes regressions on
mosts tests. It needs good heuristics that have yet to be implemented.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159694 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoPHINode::hasConstantValue(): return undef if the PHI is fully recursive.
Nuno Lopes [Tue, 3 Jul 2012 21:15:40 +0000 (21:15 +0000)]
PHINode::hasConstantValue(): return undef if the PHI is fully recursive.
Thanks Duncan for the idea

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159687 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoUse the DebugInfo's 'print()' method to emit the comments.
Bill Wendling [Tue, 3 Jul 2012 20:01:02 +0000 (20:01 +0000)]
Use the DebugInfo's 'print()' method to emit the comments.

These give quite a bit more information about the DebugInfo and makes it more
readable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159680 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoBoundsChecking: optimize out the check for offset < 0 if size is known to be >=...
Nuno Lopes [Tue, 3 Jul 2012 17:30:18 +0000 (17:30 +0000)]
BoundsChecking: optimize out the check for offset < 0  if size is known to be >= 0 (signed).
(LLVM optimizers cannot do this optimization by themselves)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159668 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agofold PHI nodes in SizeOffsetEvaluator whenever possible.
Nuno Lopes [Tue, 3 Jul 2012 17:13:25 +0000 (17:13 +0000)]
fold PHI nodes in SizeOffsetEvaluator whenever possible.
Unfortunately this change requires the cache map to hold WeakVHs instead

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159667 91177308-0d34-0410-b5e6-96231b3b80d8