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53460 Commits

Author SHA1 Message Date
Evan Cheng 484dba893c Rather than having llvm-gcc changing the meaning of OptimizeSize, just make sure loop unswitch is conservative when optimization level is < 3. 
llvm-svn: 85581
 2009-10-30 07:23:49 +00:00
Bob Wilson 1cf0b03064 Add ARM codegen for indirect branches. 
clang/test/CodeGen/indirect-goto.c runs! (unoptimized)

llvm-svn: 85577
 2009-10-30 05:45:42 +00:00
Dan Gohman b0cad70c24 Most stack straces don't need 3 digits worth of levels. 
llvm-svn: 85575
 2009-10-30 02:45:10 +00:00
Dan Gohman 64997909a6 Don't delete blocks which have their address taken. 
llvm-svn: 85572
 2009-10-30 02:13:27 +00:00
Dan Gohman e0a8b8fc56 Mention if a block has its address taken in debug output. 
llvm-svn: 85571
 2009-10-30 02:08:26 +00:00
Dan Gohman 43c574068b 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 4246f00e0c Add support for BlockAddress static initializers. 
llvm-svn: 85562
 2009-10-30 01:45:18 +00:00
Dan Gohman 2f8ccf2bf4 Add a FIXME comment. 
llvm-svn: 85559
 2009-10-30 01:38:20 +00:00
Dan Gohman c83dc4b506 Add some comments. 
llvm-svn: 85558
 2009-10-30 01:34:35 +00:00
Dan Gohman f7c4299312 Initial x86 support for BlockAddresses. 
llvm-svn: 85557
 2009-10-30 01:28:02 +00:00
Dan Gohman 6c9388011b Initial target-independent CodeGen support for BlockAddresses. 
llvm-svn: 85556
 2009-10-30 01:27:03 +00:00
Devang Patel fe480c5e62 Remove dead code. 
llvm-svn: 85551
 2009-10-30 00:39:25 +00:00
Dan Gohman 126193a9b5 Add a BlockAddress MachineOperand kind. 
llvm-svn: 85549
 2009-10-30 00:20:08 +00:00
Dan Gohman 8c9b10f4e8 Remove a redundant copy constructor. 
llvm-svn: 85547
 2009-10-30 00:14:33 +00:00
Jim Grosbach 8578068302 Dial back the realignment a bit. 
llvm-svn: 85546
 2009-10-30 00:08:40 +00:00
David Goodwin faa7660fd0 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 05efd893db Remove some unnecessary spaces in debug output. 
llvm-svn: 85536
 2009-10-29 23:30:06 +00:00
Dan Gohman 554a75a973 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 9f1b2d4619 Fix a couple of bugs in aggressive anti-dep breaking. 
llvm-svn: 85522
 2009-10-29 19:17:04 +00:00
Bob Wilson 94f8f87890 Refactor complicated predicate into a separate function. 
llvm-svn: 85519
 2009-10-29 18:40:06 +00:00
Devang Patel 78c327f171 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 453d64c9f5 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 104f57cae8 Refactor the code for unfolding a load into a separate function. 
llvm-svn: 85515
 2009-10-29 17:47:20 +00:00
Bill Wendling c44768ae69 Reapply r85338. 
llvm-svn: 85514
 2009-10-29 17:39:46 +00:00
Benjamin Kramer 5e1db97573 Fix MSVC build. 
llvm-svn: 85505
 2009-10-29 12:55:32 +00:00
Nick Lewycky b43a43a8fd Apply some cleanups. No functionality changes. 
llvm-svn: 85498
 2009-10-29 07:35:15 +00:00
Chris Lattner 6747b4ca30 add sanity check for indbr. 
llvm-svn: 85496
 2009-10-29 05:53:32 +00:00
Chris Lattner 312748848f 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 0c778f70e9 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 b71fae8098 add newline to make cl.exe happy. 
llvm-svn: 85483
 2009-10-29 05:07:14 +00:00
Zhongxing Xu 0590837d34 fix 80-col. 
llvm-svn: 85480
 2009-10-29 04:41:24 +00:00
Chris Lattner e9006fe142 greatly improve the LLVM IR bitcode encoding documentation, 
patch by Peter Housel!

llvm-svn: 85479
 2009-10-29 04:25:46 +00:00
Zhongxing Xu d74ffbde67 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 b352d76480 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 cad78a7634 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
Johnny Chen 8107289624 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!

llvm-svn: 85470
 2009-10-29 02:04:53 +00:00
Johnny Chen c3d9a47d03 Minor tweak to forgo the the curly braces for most case blocks, except when 
declaring local variables.

llvm-svn: 85467
 2009-10-29 01:45:07 +00:00
Chris Lattner ee8b951e73 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 8829fc3a18 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 3505c94923 Don't put in these EH changes. 
llvm-svn: 85460
 2009-10-29 00:37:35 +00:00
Douglas Gregor a6f3e7edeb A switch-on-string-literal construct that is a nice alternative to 
cascading "ifs" of strcmps/memcmps.

llvm-svn: 85459
 2009-10-29 00:34:30 +00:00
Chris Lattner be060382e9 teach ValueMapper about BlockAddress', making bugpoint a lot more useful. 
llvm-svn: 85458
 2009-10-29 00:31:02 +00:00
Chris Lattner cf5a47d63d unindent massive blocks, no functionality change. 
llvm-svn: 85457
 2009-10-29 00:28:30 +00:00
Bill Wendling a8eceedb82 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 d7db2dedaa Add indirectbr and blockaddress to the vim syntax highlighting file. 
llvm-svn: 85451
 2009-10-29 00:14:44 +00:00
Dan Gohman 3903320a48 Add a hasAddressTaken for BasicBlock. 
llvm-svn: 85449
 2009-10-29 00:09:08 +00:00
Chris Lattner 48d9995d2b add IRBuilder support for IndirectBr 
llvm-svn: 85445
 2009-10-28 23:25:00 +00:00
Bob Wilson 3ab552ec74 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 14f162d9dc 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 1fd4c577d2 Make sure we return the right sized type here. 
llvm-svn: 85436
 2009-10-28 21:32:16 +00:00