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Dan Gohman [Fri, 30 Oct 2009 01:34:35 +0000 (01:34 +0000)]
Add some comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85558
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Dan Gohman [Fri, 30 Oct 2009 01:28:02 +0000 (01:28 +0000)]
Initial x86 support for BlockAddresses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85557
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Dan Gohman [Fri, 30 Oct 2009 01:27:03 +0000 (01:27 +0000)]
Initial target-independent CodeGen support for BlockAddresses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85556
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Devang Patel [Fri, 30 Oct 2009 00:39:25 +0000 (00:39 +0000)]
Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85551
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Dan Gohman [Fri, 30 Oct 2009 00:20:08 +0000 (00:20 +0000)]
Add a BlockAddress MachineOperand kind.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85549
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Dan Gohman [Fri, 30 Oct 2009 00:17:14 +0000 (00:17 +0000)]
Add svn:ignore properties.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85548
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Dan Gohman [Fri, 30 Oct 2009 00:14:33 +0000 (00:14 +0000)]
Remove a redundant copy constructor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85547
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Jim Grosbach [Fri, 30 Oct 2009 00:08:40 +0000 (00:08 +0000)]
Dial back the realignment a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85546
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David Goodwin [Thu, 29 Oct 2009 23:30:59 +0000 (23:30 +0000)]
Between scheduling regions, correctly maintain anti-dep breaking state so that we don't incorrectly rename registers that span these regions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85537
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Dan Gohman [Thu, 29 Oct 2009 23:30:06 +0000 (23:30 +0000)]
Remove some unnecessary spaces in debug output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85536
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Dan Gohman [Thu, 29 Oct 2009 22:30:23 +0000 (22:30 +0000)]
Move some code from being emitted as boilerplate duplicated in every
*ISelDAGToDAG.cpp to being regular code in SelectionDAGISel.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85530
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David Goodwin [Thu, 29 Oct 2009 19:17:04 +0000 (19:17 +0000)]
Fix a couple of bugs in aggressive anti-dep breaking.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85522
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Bob Wilson [Thu, 29 Oct 2009 18:40:06 +0000 (18:40 +0000)]
Refactor complicated predicate into a separate function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85519
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Devang Patel [Thu, 29 Oct 2009 18:20:34 +0000 (18:20 +0000)]
First bitcase use may not lead to a dbg.declare intrinsic. Iterate uses until one find's dbg.declare intrinsic.
Patch by Sunae Seo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85518
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Dan Gohman [Thu, 29 Oct 2009 18:10:34 +0000 (18:10 +0000)]
Rename usesCustomDAGSchedInserter to usesCustomInserter, and update a
bunch of associated comments, because it doesn't have anything to do
with DAGs or scheduling. This is another step in decoupling MachineInstr
emitting from scheduling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85517
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Dan Gohman [Thu, 29 Oct 2009 17:47:20 +0000 (17:47 +0000)]
Refactor the code for unfolding a load into a separate function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85515
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Bill Wendling [Thu, 29 Oct 2009 17:39:46 +0000 (17:39 +0000)]
Reapply r85338.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85514
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Benjamin Kramer [Thu, 29 Oct 2009 12:55:32 +0000 (12:55 +0000)]
Fix MSVC build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85505
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Nick Lewycky [Thu, 29 Oct 2009 07:35:15 +0000 (07:35 +0000)]
Apply some cleanups. No functionality changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85498
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Chris Lattner [Thu, 29 Oct 2009 05:53:32 +0000 (05:53 +0000)]
add sanity check for indbr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85496
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Chris Lattner [Thu, 29 Oct 2009 05:51:50 +0000 (05:51 +0000)]
just for the hell of it, allow globalopt to statically evaluate
static constructors with indirect gotos :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85495
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Chris Lattner [Thu, 29 Oct 2009 05:26:09 +0000 (05:26 +0000)]
add interpreter support for indirect goto / blockaddress. The interpreter
now correctly runs clang's test/CodeGen/indirect-goto.c. The JIT will abort
on it until someone feels compelled to implement this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85488
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Zhongxing Xu [Thu, 29 Oct 2009 05:07:14 +0000 (05:07 +0000)]
add newline to make cl.exe happy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85483
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Zhongxing Xu [Thu, 29 Oct 2009 04:41:24 +0000 (04:41 +0000)]
fix 80-col.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85480
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Chris Lattner [Thu, 29 Oct 2009 04:25:46 +0000 (04:25 +0000)]
greatly improve the LLVM IR bitcode encoding documentation,
patch by Peter Housel!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85479
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Zhongxing Xu [Thu, 29 Oct 2009 03:43:06 +0000 (03:43 +0000)]
Explicitly convert to double to suppress Visual C++ 2008 build error C2668 pow is ambiguous call to overloaded function
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85478
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Jim Grosbach [Thu, 29 Oct 2009 02:41:21 +0000 (02:41 +0000)]
To get more thorough testing from llc-beta nightly runs, do dynamic stack
realignment regardless of whether it's strictly necessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85476
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Jim Grosbach [Thu, 29 Oct 2009 02:33:47 +0000 (02:33 +0000)]
When the function is doing dynamic stack realignment, the spill slot will be
indexed via the stack pointer, even if a frame pointer is present. Update the
heuristic to place it nearest the stack pointer in that case, rather than
nearest the frame pointer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85474
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Johnny Chen [Thu, 29 Oct 2009 02:04:53 +0000 (02:04 +0000)]
Sorry to break the build.
I was trying to check the WIP file to some local repository, but ended up
checking in the llvm repository. Oops!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85470
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Johnny Chen [Thu, 29 Oct 2009 01:45:07 +0000 (01:45 +0000)]
Minor tweak to forgo the the curly braces for most case blocks, except when
declaring local variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85467
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Chris Lattner [Thu, 29 Oct 2009 01:21:20 +0000 (01:21 +0000)]
teach various passes about blockaddress. We no longer
crash on any clang tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85465
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Dale Johannesen [Thu, 29 Oct 2009 01:15:40 +0000 (01:15 +0000)]
When there is a 2-instruction spill sequence, record
the second (store) instruction in SpillSlotToUsesMap
consistently. I don't think this matters functionally,
but it's cleaner and Evan wants it this way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85463
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Bill Wendling [Thu, 29 Oct 2009 00:37:35 +0000 (00:37 +0000)]
Don't put in these EH changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85460
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Douglas Gregor [Thu, 29 Oct 2009 00:34:30 +0000 (00:34 +0000)]
A switch-on-string-literal construct that is a nice alternative to
cascading "ifs" of strcmps/memcmps.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85459
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Chris Lattner [Thu, 29 Oct 2009 00:31:02 +0000 (00:31 +0000)]
teach ValueMapper about BlockAddress', making bugpoint a lot more useful.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85458
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Chris Lattner [Thu, 29 Oct 2009 00:28:30 +0000 (00:28 +0000)]
unindent massive blocks, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85457
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Bill Wendling [Thu, 29 Oct 2009 00:22:16 +0000 (00:22 +0000)]
Reverting r85338 for now. It's causing a bootstrap failure on PPC darwin9.
--- Reverse-merging r85338 into '.':
U lib/CodeGen/SimpleRegisterCoalescing.cpp
U lib/CodeGen/SimpleRegisterCoalescing.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85454
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Dan Gohman [Thu, 29 Oct 2009 00:14:44 +0000 (00:14 +0000)]
Add indirectbr and blockaddress to the vim syntax highlighting file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85451
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Dan Gohman [Thu, 29 Oct 2009 00:09:08 +0000 (00:09 +0000)]
Add a hasAddressTaken for BasicBlock.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85449
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Chris Lattner [Wed, 28 Oct 2009 23:25:00 +0000 (23:25 +0000)]
add IRBuilder support for IndirectBr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85445
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Bob Wilson [Wed, 28 Oct 2009 22:10:20 +0000 (22:10 +0000)]
Reimplement BranchFolding change to avoid tail merging for a 1 instruction
common tail, except when the OptimizeForSize function attribute is present.
Radar
7338114.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85441
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Dale Johannesen [Wed, 28 Oct 2009 21:56:18 +0000 (21:56 +0000)]
When we generate spill code, then decide we don't need
to spill after all, we weren't handling 2-instruction
spill sequences correctly (PPC Altivec). We need to
remove the store in this case. Removing the other
instruction(s) would be goodness but is not needed for
correctness, and isn't done here.
7331562.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85437
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Eric Christopher [Wed, 28 Oct 2009 21:32:16 +0000 (21:32 +0000)]
Make sure we return the right sized type here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85436
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Bob Wilson [Wed, 28 Oct 2009 20:46:46 +0000 (20:46 +0000)]
Revert r85346 change to control tail merging by CodeGenOpt::Level.
I'm going to redo this using the OptimizeForSize function attribute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85426
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Victor Hernandez [Wed, 28 Oct 2009 20:18:55 +0000 (20:18 +0000)]
Extend getMallocArraySize() to determine the array size if the malloc argument is:
ArraySize * ElementSize
ElementSize * ArraySize
ArraySize << log2(ElementSize)
ElementSize << log2(ArraySize)
Refactor isArrayMallocHelper and delete isSafeToGetMallocArraySize, so that there is only 1 copy of the malloc array determining logic.
Update users of getMallocArraySize() to not bother calling isArrayMalloc() as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85421
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Viktor Kutuzov [Wed, 28 Oct 2009 18:55:55 +0000 (18:55 +0000)]
Fix to pass options from Gold plugin to LTO codegen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85419
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Benjamin Kramer [Wed, 28 Oct 2009 18:37:31 +0000 (18:37 +0000)]
Teach cmake that mk[sd]temp is defined in stdlib.h on some systems.
This fixes parallel build with clang on glibc platforms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85414
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David Goodwin [Wed, 28 Oct 2009 18:29:54 +0000 (18:29 +0000)]
Make AntiDepReg.h internal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85412
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Bob Wilson [Wed, 28 Oct 2009 18:26:41 +0000 (18:26 +0000)]
Add a Thumb BRIND pattern. Change the ARM BRIND assembly to separate the
opcode and operand with a tab. Check for these instructions in the usual
places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85411
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Evan Cheng [Wed, 28 Oct 2009 18:19:56 +0000 (18:19 +0000)]
fconsts and fconstd are obviously re-materializable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85410
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Jim Grosbach [Wed, 28 Oct 2009 17:33:28 +0000 (17:33 +0000)]
Cleanup now that frame index scavenging via post-pass is working for ARM and Thumb2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85406
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Devang Patel [Wed, 28 Oct 2009 16:51:52 +0000 (16:51 +0000)]
llvm.dbg.global_variables do not exist anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85402
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Chris Lattner [Wed, 28 Oct 2009 15:32:19 +0000 (15:32 +0000)]
add a new 'SetCurrentDebugType' API (requested by Andrew Haley for JIT
stuff) to programmatically control the current debug flavor. While
I'm at it, doxygenate Debug.h and clean it up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85395
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Dan Gohman [Wed, 28 Oct 2009 15:28:02 +0000 (15:28 +0000)]
Don't call SDNode::isPredecessorOf when it isn't necessary. If the load's
chains have no users, they can't be predecessors of the condition.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85394
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Dan Gohman [Wed, 28 Oct 2009 15:23:36 +0000 (15:23 +0000)]
Simplify this code: if the unfolded load can't be hoisted, just delete
the new instructions and leave the old one in place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85393
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Edward O'Callaghan [Wed, 28 Oct 2009 15:04:53 +0000 (15:04 +0000)]
No newline at end of file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85390
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Benjamin Kramer [Wed, 28 Oct 2009 13:29:18 +0000 (13:29 +0000)]
Update CMake file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85389
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Gabor Greif [Wed, 28 Oct 2009 13:14:50 +0000 (13:14 +0000)]
use metavariable <result> instead of SSA name %result for consistency
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85388
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Gabor Greif [Wed, 28 Oct 2009 13:05:07 +0000 (13:05 +0000)]
ooops, SSA name should not be part of the link
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85387
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Gabor Greif [Wed, 28 Oct 2009 09:21:30 +0000 (09:21 +0000)]
advertise new syntax for unnamed instructions
and eliminate confusing double-use of SSA names
(work in progress)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85385
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Owen Anderson [Wed, 28 Oct 2009 07:05:35 +0000 (07:05 +0000)]
Treat lifetime begin/end markers as allocations/frees respectively for the
purposes for GVN/DSE.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85383
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Nick Lewycky [Wed, 28 Oct 2009 07:03:15 +0000 (07:03 +0000)]
Add ABCD, a generalized implementation of the Elimination of Array Bounds
Checks on Demand algorithm which looks at arbitrary branches instead of loop
iterations. This is GSoC work by Andre Tavares with only editorial changes
applied!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85382
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Evan Cheng [Wed, 28 Oct 2009 06:55:03 +0000 (06:55 +0000)]
Give ARMISD::EH_SJLJ_LONGJMP and EH_SJLJ_SETJMP names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85381
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Owen Anderson [Wed, 28 Oct 2009 06:30:52 +0000 (06:30 +0000)]
Be more careful about invariance reasoning on "store" queries. Stores still need
to depend on Ref and ModRef calls within the invariant region.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85380
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Evan Cheng [Wed, 28 Oct 2009 06:30:34 +0000 (06:30 +0000)]
X86 palignr intrinsics immediate field is in bits. ISel must transform it into bytes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85379
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Owen Anderson [Wed, 28 Oct 2009 06:18:42 +0000 (06:18 +0000)]
Add trivial support for the invariance intrinsics to memdep. This logic is
purely local for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85378
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Chris Lattner [Wed, 28 Oct 2009 05:53:48 +0000 (05:53 +0000)]
add bitcode reader support for blockaddress. We can now fully
round trip blockaddress through .ll and .bc files, so add a testcase.
There are still a bunch of places in the optimizer and other places
that need to be updated to work with these constructs, but at least
the basics are in now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85377
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Chris Lattner [Wed, 28 Oct 2009 05:24:40 +0000 (05:24 +0000)]
bitcode writer support for blockaddress.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85376
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Chris Lattner [Wed, 28 Oct 2009 05:14:34 +0000 (05:14 +0000)]
Previously, all operands to Constant were themselves constant.
In the new world order, BlockAddress can have a BasicBlock operand.
This doesn't permute much, because if you have a ConstantExpr (or
anything more specific than Constant) we still know the operand has
to be a Constant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85375
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Chris Lattner [Wed, 28 Oct 2009 04:47:06 +0000 (04:47 +0000)]
doc bug spotted by apinski
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85372
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Chris Lattner [Wed, 28 Oct 2009 04:12:16 +0000 (04:12 +0000)]
'static const void *X = &&y' can only be put in the
readonly section if a reference to the containing function
is valid in the readonly section.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85370
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Dan Gohman [Wed, 28 Oct 2009 03:44:30 +0000 (03:44 +0000)]
Rewrite SelectionDAG::isPredecessorOf to be iterative instead of
recursive to avoid consuming extraordinary amounts of stack space
when processing tall graphs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85369
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Chris Lattner [Wed, 28 Oct 2009 03:39:23 +0000 (03:39 +0000)]
full asmparser support for blockaddress. We can now do:
$ llvm-as foo.ll -d -disable-output
which reads and prints the .ll file. BC encoding is the
next project. Testcase will go in once that works.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85368
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Chris Lattner [Wed, 28 Oct 2009 03:38:12 +0000 (03:38 +0000)]
asmprinter support for BlockAddress.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85367
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Chris Lattner [Wed, 28 Oct 2009 03:37:35 +0000 (03:37 +0000)]
when we tear down a module, we need to be careful to
zap BlockAddress values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85366
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Chris Lattner [Wed, 28 Oct 2009 03:36:44 +0000 (03:36 +0000)]
basic blocks can now have non-instruction users.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85365
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Dan Gohman [Wed, 28 Oct 2009 03:21:57 +0000 (03:21 +0000)]
Teach MachineLICM to unfold loads from constant memory from
otherwise unhoistable instructions in order to allow the loads
to be hoisted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85364
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Evan Cheng [Wed, 28 Oct 2009 01:44:26 +0000 (01:44 +0000)]
Use fconsts and fconstd to materialize small fp constants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85362
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Evan Cheng [Wed, 28 Oct 2009 01:43:28 +0000 (01:43 +0000)]
Add a second ValueType argument to isFPImmLegal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85361
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Dan Gohman [Wed, 28 Oct 2009 01:13:53 +0000 (01:13 +0000)]
Mark dead physregdefs dead immediately. This helps MachineSink and
MachineLICM and other things which run before LiveVariables is run.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85360
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Dan Gohman [Wed, 28 Oct 2009 01:12:16 +0000 (01:12 +0000)]
Allow constants of different types to share constant pool entries
if they have compatible encodings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85359
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Evan Cheng [Wed, 28 Oct 2009 01:08:17 +0000 (01:08 +0000)]
Remove getIEEEFloatParts and getIEEEDoubleParts. They are not needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85358
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Dan Gohman [Wed, 28 Oct 2009 00:55:57 +0000 (00:55 +0000)]
Update SystemZ to use PSW following the way x86 uses EFLAGS. Besides
eliminating a use of MVT::Flag, this is needed for an upcoming CodeGen
change.
This unfortunately requires SystemZ to switch to the list-burr
scheduler, in order to handle the physreg defs properly, however
that's what LLVM has available at this time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85357
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Bob Wilson [Wed, 28 Oct 2009 00:37:03 +0000 (00:37 +0000)]
Add an indirect branch pattern for ARM. Testcase will be coming soon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85355
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Jeffrey Yasskin [Wed, 28 Oct 2009 00:28:31 +0000 (00:28 +0000)]
Fix the ModuleDeletion test on PPC and ARM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85352
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Chris Lattner [Wed, 28 Oct 2009 00:19:10 +0000 (00:19 +0000)]
rename indbr -> indirectbr to appease the residents of #llvm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85351
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Chris Lattner [Wed, 28 Oct 2009 00:01:44 +0000 (00:01 +0000)]
IR support for the new BlockAddress constant kind. This is
untested and there is no way to use it, next up: doing battle
with asmparser.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85349
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Bob Wilson [Tue, 27 Oct 2009 23:49:38 +0000 (23:49 +0000)]
Record CodeGen optimization level in the BranchFolding pass so that we can
use it to control tail merging when there is a tradeoff between performance
and code size. When there is only 1 instruction in the common tail, we have
been merging. That can be good for code size but is a definite loss for
performance. Now we will avoid tail merging in that case when the
optimization level is "Aggressive", i.e., "-O3". Radar
7338114.
Since the IfConversion pass invokes BranchFolding, it too needs to know
the optimization level. Note that I removed the RegisterPass instantiation
for IfConversion because it required a default constructor. If someone
wants to keep that for some reason, we can add a default constructor with
a hard-wired optimization level.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85346
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Jeffrey Yasskin [Tue, 27 Oct 2009 23:45:55 +0000 (23:45 +0000)]
Rename lib/VMCore/ConstantsContext.h:ValueMap<> to ConstantUniqueMap<> to avoid
colliding with llvm/ADT/ValueMap.h:ValueMap<>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85344
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Bill Wendling [Tue, 27 Oct 2009 23:30:07 +0000 (23:30 +0000)]
Add new note.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85341
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Lang Hames [Tue, 27 Oct 2009 23:16:58 +0000 (23:16 +0000)]
Fixed a bug in the coalescer where intervals were occasionally merged despite a real interference. This fixes rdar://problem/
7157961.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85338
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Jim Grosbach [Tue, 27 Oct 2009 22:52:29 +0000 (22:52 +0000)]
Enable virtual register based frame index scavenging by default for ARM & T2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85335
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Bill Wendling [Tue, 27 Oct 2009 22:48:31 +0000 (22:48 +0000)]
Move and clarify note.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85334
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Jim Grosbach [Tue, 27 Oct 2009 22:45:39 +0000 (22:45 +0000)]
Infrastructure for dynamic stack realignment on ARM. For now, this is off by
default behind a command line option. This will enable better performance for
vectors on NEON enabled processors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85333
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Bill Wendling [Tue, 27 Oct 2009 22:43:24 +0000 (22:43 +0000)]
Note corrected.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85332
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Bill Wendling [Tue, 27 Oct 2009 22:40:45 +0000 (22:40 +0000)]
Modify note.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85331
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Jeffrey Yasskin [Tue, 27 Oct 2009 22:39:42 +0000 (22:39 +0000)]
Revert the API changes from r85295 to make it easier for people to build
against both 2.6 and HEAD. The default is still changed to eager jitting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85330
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Bill Wendling [Tue, 27 Oct 2009 22:34:43 +0000 (22:34 +0000)]
Add a note.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85329
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Devang Patel [Tue, 27 Oct 2009 22:16:29 +0000 (22:16 +0000)]
Factor out redundancy from clone() implementations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85327
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Dan Gohman [Tue, 27 Oct 2009 22:10:34 +0000 (22:10 +0000)]
Update the MachineBasicBlock CFG for an indirect branch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85325
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