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33251 Commits

Author SHA1 Message Date
Dan Gohman
2a0216ff1c Mention if a block has its address taken in debug output. 
llvm-svn: 85571
 2009-10-30 02:08:26 +00:00
Dan Gohman
42e985b07a Simplify this code and avoid an extra space character in the output. 
llvm-svn: 85568
 2009-10-30 02:01:10 +00:00
Dan Gohman
468aef9289 Add support for BlockAddress static initializers. 
llvm-svn: 85562
 2009-10-30 01:45:18 +00:00
Dan Gohman
aa62f675db Add a FIXME comment. 
llvm-svn: 85559
 2009-10-30 01:38:20 +00:00
Dan Gohman
a0fc491716 Add some comments. 
llvm-svn: 85558
 2009-10-30 01:34:35 +00:00
Dan Gohman
2767aa065e Initial x86 support for BlockAddresses. 
llvm-svn: 85557
 2009-10-30 01:28:02 +00:00
Dan Gohman
6b7d1390d7 Initial target-independent CodeGen support for BlockAddresses. 
llvm-svn: 85556
 2009-10-30 01:27:03 +00:00
Jim Grosbach
95e1ff2dba Dial back the realignment a bit. 
llvm-svn: 85546
 2009-10-30 00:08:40 +00:00
David Goodwin
9a91b1fe3d Between scheduling regions, correctly maintain anti-dep breaking state so that we don't incorrectly rename registers that span these regions. 
llvm-svn: 85537
 2009-10-29 23:30:59 +00:00
Dan Gohman
ed15829b83 Remove some unnecessary spaces in debug output. 
llvm-svn: 85536
 2009-10-29 23:30:06 +00:00
Dan Gohman
7f5acc4b57 Move some code from being emitted as boilerplate duplicated in every 
*ISelDAGToDAG.cpp to being regular code in SelectionDAGISel.cpp.

llvm-svn: 85530
 2009-10-29 22:30:23 +00:00
David Goodwin
ad8a169be4 Fix a couple of bugs in aggressive anti-dep breaking. 
llvm-svn: 85522
 2009-10-29 19:17:04 +00:00
Bob Wilson
e99d5530a3 Refactor complicated predicate into a separate function. 
llvm-svn: 85519
 2009-10-29 18:40:06 +00:00
Devang Patel
093d35bd8a First bitcase use may not lead to a dbg.declare intrinsic. Iterate uses until one find's dbg.declare intrinsic. 
Patch by Sunae Seo.

llvm-svn: 85518
 2009-10-29 18:20:34 +00:00
Dan Gohman
3393a4c997 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.

llvm-svn: 85517
 2009-10-29 18:10:34 +00:00
Dan Gohman
4620ed7bb7 Refactor the code for unfolding a load into a separate function. 
llvm-svn: 85515
 2009-10-29 17:47:20 +00:00
Bill Wendling
c0aefdd3db Reapply r85338. 
llvm-svn: 85514
 2009-10-29 17:39:46 +00:00
Benjamin Kramer
c2ed14cdb8 Fix MSVC build. 
llvm-svn: 85505
 2009-10-29 12:55:32 +00:00
Nick Lewycky
5207d16c05 Apply some cleanups. No functionality changes. 
llvm-svn: 85498
 2009-10-29 07:35:15 +00:00
Chris Lattner
57a8d8d4e0 add sanity check for indbr. 
llvm-svn: 85496
 2009-10-29 05:53:32 +00:00
Chris Lattner
e83554145a just for the hell of it, allow globalopt to statically evaluate 
static constructors with indirect gotos :)

llvm-svn: 85495
 2009-10-29 05:51:50 +00:00
Chris Lattner
9bc4a421e2 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.

llvm-svn: 85488
 2009-10-29 05:26:09 +00:00
Zhongxing Xu
93af2d027f fix 80-col. 
llvm-svn: 85480
 2009-10-29 04:41:24 +00:00
Zhongxing Xu
45d8013f73 Explicitly convert to double to suppress Visual C++ 2008 build error C2668 pow is ambiguous call to overloaded function 
llvm-svn: 85478
 2009-10-29 03:43:06 +00:00
Jim Grosbach
071b4ec891 To get more thorough testing from llc-beta nightly runs, do dynamic stack 
realignment regardless of whether it's strictly necessary.

llvm-svn: 85476
 2009-10-29 02:41:21 +00:00
Jim Grosbach
220e39263c 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.

llvm-svn: 85474
 2009-10-29 02:33:47 +00:00
Chris Lattner
a0e35cae82 teach various passes about blockaddress. We no longer 
crash on any clang tests.

llvm-svn: 85465
 2009-10-29 01:21:20 +00:00
Dale Johannesen
2dcd23d6f7 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.

llvm-svn: 85463
 2009-10-29 01:15:40 +00:00
Bill Wendling
58923e365d Don't put in these EH changes. 
llvm-svn: 85460
 2009-10-29 00:37:35 +00:00
Chris Lattner
0a782eec94 teach ValueMapper about BlockAddress', making bugpoint a lot more useful. 
llvm-svn: 85458
 2009-10-29 00:31:02 +00:00
Chris Lattner
8f70e602d3 unindent massive blocks, no functionality change. 
llvm-svn: 85457
 2009-10-29 00:28:30 +00:00
Bill Wendling
784d38511f 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

llvm-svn: 85454
 2009-10-29 00:22:16 +00:00
Dan Gohman
c80f1a4033 Add a hasAddressTaken for BasicBlock. 
llvm-svn: 85449
 2009-10-29 00:09:08 +00:00
Bob Wilson
f13be9d41e Reimplement BranchFolding change to avoid tail merging for a 1 instruction 
common tail, except when the OptimizeForSize function attribute is present.
Radar 7338114.

llvm-svn: 85441
 2009-10-28 22:10:20 +00:00
Dale Johannesen
e6fe8733fd 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.

llvm-svn: 85437
 2009-10-28 21:56:18 +00:00
Eric Christopher
d34a37560a Make sure we return the right sized type here. 
llvm-svn: 85436
 2009-10-28 21:32:16 +00:00
Bob Wilson
fc1194919b Revert r85346 change to control tail merging by CodeGenOpt::Level. 
I'm going to redo this using the OptimizeForSize function attribute.

llvm-svn: 85426
 2009-10-28 20:46:46 +00:00
Victor Hernandez
917cf94b22 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.

llvm-svn: 85421
 2009-10-28 20:18:55 +00:00
David Goodwin
ae4f8e01b0 Make AntiDepReg.h internal. 
llvm-svn: 85412
 2009-10-28 18:29:54 +00:00
Bob Wilson
af37728221 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.

llvm-svn: 85411
 2009-10-28 18:26:41 +00:00
Evan Cheng
519b231883 fconsts and fconstd are obviously re-materializable. 
llvm-svn: 85410
 2009-10-28 18:19:56 +00:00
Jim Grosbach
e42dc83a9f Cleanup now that frame index scavenging via post-pass is working for ARM and Thumb2. 
llvm-svn: 85406
 2009-10-28 17:33:28 +00:00
Devang Patel
de81397884 llvm.dbg.global_variables do not exist anymore. 
llvm-svn: 85402
 2009-10-28 16:51:52 +00:00
Chris Lattner
a77d439989 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.

llvm-svn: 85395
 2009-10-28 15:32:19 +00:00
Dan Gohman
7948563977 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.

llvm-svn: 85394
 2009-10-28 15:28:02 +00:00
Dan Gohman
a43a2a10a1 Simplify this code: if the unfolded load can't be hoisted, just delete 
the new instructions and leave the old one in place.

llvm-svn: 85393
 2009-10-28 15:23:36 +00:00
Edward O'Callaghan
fbe911a40e No newline at end of file. 
llvm-svn: 85390
 2009-10-28 15:04:53 +00:00
Benjamin Kramer
51f925548b Update CMake file. 
llvm-svn: 85389
 2009-10-28 13:29:18 +00:00
Owen Anderson
cfb2c9edeb Treat lifetime begin/end markers as allocations/frees respectively for the 
purposes for GVN/DSE.

llvm-svn: 85383
 2009-10-28 07:05:35 +00:00
Nick Lewycky
0376e34268 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!

llvm-svn: 85382
 2009-10-28 07:03:15 +00:00