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4294 Commits

Author SHA1 Message Date
Bill Wendling
395d7dee0e Give a description of the Objective-C garbage collection module flags. 
The rule governing the flags is this:

  no-gc + no-gc   = no-gc
  no-gc +    gc   = no-gc
  no-gc + gc-only = error
     gc +    gc   = gc
     gc + gc-only = gc-only
gc-only + gc-only = gc-only

llvm-svn: 150646
 2012-02-16 01:10:50 +00:00
Daniel Dunbar
81ccdef572 utils: Kill NewNightlyTest.pl, which has been replaced by LNT (as far as I know). 
llvm-svn: 150610
 2012-02-15 19:24:11 +00:00
Bill Wendling
55933f75ab Document the new module flags. 
llvm-svn: 150301
 2012-02-11 11:59:36 +00:00
Pete Cooper
57c51010db Added description of invariant.load metadata to LangRef. It was added to the compiler in r144100 
llvm-svn: 150257
 2012-02-10 18:13:54 +00:00
Jia Liu
035a90c9ec update --enable-targets list 
llvm-svn: 150229
 2012-02-10 04:58:24 +00:00
Devang Patel
c4b407c311 Now subprogram descriptors are not collected by llvm.dbg.sp NamedMDNode. Update document to reflect this change. 
llvm-svn: 150187
 2012-02-09 17:34:01 +00:00
Chris Lattner
eaaee90a17 fix broken link 
llvm-svn: 150105
 2012-02-08 22:20:00 +00:00
Chris Lattner
9cb250a113 No actual functional change here, just some clarifications: 
Clarify that contributors are agreeing to license their code under the 
license corresponding to the subproject that they are contributing to,
as requested by a potential contributor.

Also, as a drive-by, update the llvm-gcc/GPL section to mention dragonegg
and say that GPL code is all in its own repo's.

llvm-svn: 150065
 2012-02-08 07:58:38 +00:00
Chris Lattner
1c0f1d4d1f add an explicit section on static constructors. 
llvm-svn: 150037
 2012-02-08 01:44:00 +00:00
Bill Wendling
cd6addef26 Rephrase to add clarity. 
llvm-svn: 149972
 2012-02-07 08:42:29 +00:00
Bill Wendling
9e07368007 Document the 'unwind' removal. 
llvm-svn: 149914
 2012-02-06 21:59:44 +00:00
Bill Wendling
c0985aa29f [unwind removal] Remove any mention of the 'unwind' instruction. What was that 
instruction anyway?!

llvm-svn: 149913
 2012-02-06 21:57:33 +00:00
Devang Patel
bf38fa24e7 Update docs describing objective-c property encoding. This includes support for properties that are not backed by an ivar. 
llvm-svn: 149879
 2012-02-06 18:18:25 +00:00
Bill Wendling
a496f94d12 Mention that the 'unwind' instruction is now deprecated. 
llvm-svn: 149876
 2012-02-06 17:58:34 +00:00
Eli Bendersky
33bdce0fd3 Fix typo and broken link 
llvm-svn: 149820
 2012-02-05 11:17:49 +00:00
Eli Bendersky
9d93af489b Add missing paren 
llvm-svn: 149817
 2012-02-05 09:21:25 +00:00
Hal Finkel
8cf5de5774 Add a basic-block autovectorization pass. 
This is the initial checkin of the basic-block autovectorization pass along with some supporting vectorization infrastructure.
Special thanks to everyone who helped review this code over the last several months (especially Tobias Grosser).

llvm-svn: 149468
 2012-02-01 03:51:43 +00:00
Dan Gohman
8be3999ea3 basic-aa does support AliasAnalysis chaining now. 
llvm-svn: 149293
 2012-01-30 23:05:41 +00:00
Talin
d6b8c10155 DenseMap::find_as() and unit tests. 
llvm-svn: 149229
 2012-01-30 06:55:43 +00:00
Jim Grosbach
84b2fe36c8 Tidy up. s/Low Level Virtual Machine/LLVM/. 
LLVM isn't an acronym anymore.

llvm-svn: 148985
 2012-01-25 22:00:23 +00:00
Nick Lewycky
ccdb5138b7 Fix broken link. 
llvm-svn: 148692
 2012-01-23 08:47:21 +00:00
Kostya Serebryany
b37a1263e1 Extend Attributes to 64 bits 
Problem: LLVM needs more function attributes than currently available (32 bits).
One such proposed attribute is "address_safety", which shows that a function is being checked for address safety (by AddressSanitizer, SAFECode, etc).

Solution:
- extend the Attributes from 32 bits to 64-bits
- wrap the object into a class so that unsigned is never erroneously used instead
- change "unsigned" to "Attributes" throughout the code, including one place in clang.
- the class has no "operator uint64 ()", but it has "uint64_t Raw() " to support packing/unpacking.
- the class has "safe operator bool()" to support the common idiom:  if (Attributes attr = getAttrs()) useAttrs(attr);
- The CTOR from uint64_t is marked explicit, so I had to add a few explicit CTOR calls
- Add the new attribute "address_safety". Doing it in the same commit to check that attributes beyond first 32 bits actually work.
- Some of the functions from the Attribute namespace are worth moving inside the class, but I'd prefer to have it as a separate commit.

Tested:
"make check" on Linux (32-bit and 64-bit) and Mac (10.6)
built/run spec CPU 2006 on Linux with clang -O2.


This change will break clang build in lib/CodeGen/CGCall.cpp.
The following patch will fix it.

llvm-svn: 148553
 2012-01-20 17:56:17 +00:00
Chad Rosier
ce02cd3faa Fix typo. 
llvm-svn: 148497
 2012-01-19 21:50:08 +00:00
Jakob Stoklund Olesen
77ce60119b Add a new kind of MachineOperand: MO_RegisterMask. 
Register masks will be used as a compact representation of large clobber
lists.  Currently, an x86 call instruction has some 40 operands
representing call-clobbered registers.  That's more than 1kB of useless
operands per call site.

A register mask operand references a bit mask of call-preserved
registers, everything else is clobbered.  The bit mask will typically
come from TargetRegisterInfo::getCallPreservedMask().

By abandoning ImplicitDefs for call-clobbered registers, it also becomes
possible to share call instruction descriptions between calling
conventions, and we can get rid of the WINCALL* instructions.

This patch introduces the new operand kind.  Future patches will add
RegMask support to target-independent passes before finally the fixed
clobber lists can be removed from call instruction descriptions.

llvm-svn: 148250
 2012-01-16 19:22:00 +00:00
Joe Abbey
f61ffb3134 Adding a Hexagon cell for segmented stacks, as they have been implemented for X86 and not Sparc... 
Committed as obvious

llvm-svn: 148237
 2012-01-16 13:16:05 +00:00
Duncan Sands
5a44c5a303 Try to clarify a little how exception handling works. 
llvm-svn: 148136
 2012-01-13 19:59:16 +00:00
Bill Wendling
18abc22050 Revert accidental commit. 
llvm-svn: 148065
 2012-01-12 23:06:28 +00:00
Bill Wendling
ce528914e7 Fix the code that was WRONG. 
The registers are placed into the saved registers list in the reverse order,
which is why the original loop was written to loop backwards.

llvm-svn: 148064
 2012-01-12 23:05:03 +00:00
Eli Bendersky
af558b888a Fix dead link 
llvm-svn: 147721
 2012-01-07 04:11:27 +00:00
Eli Bendersky
161651f80a test commit (verifyiing commit access) 
llvm-svn: 147600
 2012-01-05 08:18:41 +00:00
Jakob Stoklund Olesen
a33612c1f2 Freeze reserved registers before starting register allocation. 
The register allocators don't currently support adding reserved
registers while they are running.  Extend the MRI API to keep track of
the set of reserved registers when register allocation started.

Target hooks like hasFP() and needsStackRealignment() can look at this
set to avoid reserving more registers during register allocation.

llvm-svn: 147577
 2012-01-05 00:26:49 +00:00
Eric Christopher
173e9e8cf2 Fix typo. 
llvm-svn: 147456
 2012-01-03 18:38:37 +00:00
Duncan Sands
ec8ede7bf4 Correct spelling. 
llvm-svn: 147435
 2012-01-02 16:55:01 +00:00
NAKAMURA Takumi
ad71e57658 Happy new year 2012! 
llvm-svn: 147395
 2012-01-01 08:16:56 +00:00
Nadav Rotem
7898dcf3bb Update the LangRef documentation: the codegen does support this instruction. 
llvm-svn: 147274
 2011-12-25 21:32:35 +00:00
Nadav Rotem
682f1c2187 Add a few lines to the release notes: 
1. pointer-vector
2. type legalizer changes and vector-select
3. X86 ISA changes.

llvm-svn: 146964
 2011-12-20 08:02:50 +00:00
Dan Gohman
80dc86c550 Add a line to ReleaseNotes for half float. 
llvm-svn: 146939
 2011-12-20 01:10:56 +00:00
Jakob Stoklund Olesen
7b1b08eb77 Remove a register class that can just as well be synthesized. 
Add the new TableGen register class synthesizer feature to the release
notes.

llvm-svn: 146875
 2011-12-19 16:53:40 +00:00
Dan Gohman
9c8c9a8f62 The powers that be have decided that LLVM IR should now support 16-bit 
"half precision" floating-point with a first-class type.

This patch adds basic IR support (but not codegen support).

llvm-svn: 146786
 2011-12-17 00:04:22 +00:00
Eric Christopher
3c533091a7 Fix spacing. 
llvm-svn: 146782
 2011-12-16 23:42:35 +00:00
Eric Christopher
598f7d7c76 Update documentation. 
llvm-svn: 146781
 2011-12-16 23:42:33 +00:00
Devang Patel
59f6d6e2d1 Clarify and fix subprogram description. 
llvm-svn: 146743
 2011-12-16 17:50:04 +00:00
Jakob Stoklund Olesen
3d0382e29d Note ARM constant island alignment in the release notes. 
The command line option should be removed, but not until the feature has
gotten a lot of testing. The ARMConstantIslandPass tends to have subtle
bugs that only show up after a while.

llvm-svn: 146739
 2011-12-16 16:07:41 +00:00
Evan Cheng
638936d9cb Add a blurb about MachineInstr bundling support. 
llvm-svn: 146603
 2011-12-14 22:57:45 +00:00
Evan Cheng
1dcc7d089e Add high level description of MachineInstr bundles. 
llvm-svn: 146589
 2011-12-14 21:32:14 +00:00
Duncan Sands
1de7ae0e43 Vectors are not aggregate types (see isAggregateType). 
llvm-svn: 146561
 2011-12-14 15:44:20 +00:00
Kostya Serebryany
4579e0c874 mention AddressSanitizer in 3.1 release notes 
llvm-svn: 146505
 2011-12-13 19:46:24 +00:00
Chris Lattner
e407984265 Rip llvm 3.0 out of the release notes, making room for LLVM 3.1 
llvm-svn: 146493
 2011-12-13 17:55:30 +00:00
Bill Wendling
b61c025aa2 Use the example from clang, not the GCC frontend, which doesn't exist anymore. 
llvm-svn: 146461
 2011-12-13 01:07:07 +00:00
Daniel Dunbar
a16a63f190 llvm-build: Switch to using the common subdirectory list instead of 
autodiscovery.

llvm-svn: 146437
 2011-12-12 22:45:59 +00:00
Daniel Dunbar
ecff3756fa llvm-build: Add sketchy support for preserving comments when using 
--write-llvmbuild.

llvm-svn: 146434
 2011-12-12 22:45:35 +00:00
Tony Linthicum
61adbf8dc5 Hexagon backend support 
llvm-svn: 146412
 2011-12-12 21:14:40 +00:00
Daniel Dunbar
30d6a45140 LLVMBuild: Remove trailing newline, which irked me. 
llvm-svn: 146409
 2011-12-12 19:48:00 +00:00
Chandler Carruth
b0340663fe Update the LangRef documentation for llvm.ctlz and llvm.cttz to specify 
the behavior with the newly added flag for undefined results on a zero
input.

I'm terrible at documentation, so comments and suggestions welcome here.

llvm-svn: 146361
 2011-12-12 04:36:04 +00:00
Bill Wendling
4f3e4c6380 Random cleanups. No description changes. 
llvm-svn: 146288
 2011-12-09 22:41:40 +00:00
Bill Wendling
5a91169c03 Revert r146041 et al. The FunctionPass doesn't take an address but the ID. 
llvm-svn: 146268
 2011-12-09 19:11:02 +00:00
Chad Rosier
00721ab85b Typo. 
llvm-svn: 146234
 2011-12-09 02:00:44 +00:00
Bill Wendling
31110c8c27 Also pass in correct initializer here. 
llvm-svn: 146044
 2011-12-07 18:18:11 +00:00
Bill Wendling
e335d0861c Correct initializer in example. 
llvm-svn: 146041
 2011-12-07 18:02:44 +00:00
Jakub Staszak
1f05c26ed0 Make Release Notes HTML 4.01 Strict. 
llvm-svn: 145991
 2011-12-06 23:33:07 +00:00
Anshuman Dasgupta
d2971cca39 Add documentation for machine-independent DFA packetizer 
llvm-svn: 145988
 2011-12-06 23:12:42 +00:00
Jakub Staszak
5fd1d873c7 Add link to builtin_expect in Release Notes. 
llvm-svn: 145979
 2011-12-06 22:31:27 +00:00
Jakub Staszak
e109ff236b Add link to llvm.expect in Release Notes. 
llvm-svn: 145964
 2011-12-06 20:56:36 +00:00
Dan Gohman
02bdcdd326 Fix a subtle semantic issue with poison values that came up in 
recent discussions. Poison can't make every value that depends on
it act in maximally undefined ways, because the optimizer may still
hoist code following the usual rules for undef. Make Poison invoke
its full undefined behavior only when it reaches an instruction with
externally visible side effects.

llvm-svn: 145913
 2011-12-06 03:35:58 +00:00
Dan Gohman
7d881a178c Line up the comments in a code example. 
llvm-svn: 145908
 2011-12-06 03:31:14 +00:00
Dan Gohman
db3a5dbdb5 Rename "Trap Values" to "Poison Values", to better reflect their 
purpose, and to avoid ambiguity with other uses of the word "trap"
in LangRef.

llvm-svn: 145907
 2011-12-06 03:18:47 +00:00
Bill Wendling
77e127d56f Move 'returns_twice' definition into alphabetical place. 
llvm-svn: 145854
 2011-12-05 21:27:54 +00:00
Nadav Rotem
1a91e4381d Add support for vectors of pointers. 
llvm-svn: 145801
 2011-12-05 06:29:09 +00:00
Jakub Staszak
2941ddc16d Fix table of contents. 
llvm-svn: 145793
 2011-12-04 20:44:25 +00:00
Jakub Staszak
01c388c624 Add 'llvm.expect' intrinsic description. 
llvm-svn: 145792
 2011-12-04 18:29:26 +00:00
Chris Lattner
7592e96900 fix broken tag 
llvm-svn: 145590
 2011-12-01 17:25:28 +00:00
Bill Wendling
a51c3c5a01 More cleanups. No content change. 
llvm-svn: 145522
 2011-11-30 21:52:43 +00:00
Bill Wendling
35f43aae70 Minor cleanup. No content change. 
llvm-svn: 145521
 2011-11-30 21:43:43 +00:00
Bill Wendling
2d1421e389 Remove an XXX which hasn't been fixed yet. It's too late now. 
llvm-svn: 145518
 2011-11-30 20:53:52 +00:00
Duncan Sands
54ca22353a Mention that -O4 does result in more optimization when used with 
-fplugin-arg-dragonegg-enable-gcc-optzns, though it usually isn't
a win.

llvm-svn: 145486
 2011-11-30 08:46:05 +00:00
Eric Christopher
58dc4573db Update the docs for some of the test-suite configure changes and 
be more clear about what to do and how to do it.

llvm-svn: 145426
 2011-11-29 19:40:56 +00:00
Rafael Espindola
90c572b822 grammar. 
llvm-svn: 145423
 2011-11-29 19:38:09 +00:00
Benjamin Kramer
0cf194e55c Add a link to Bill's blog post. 
llvm-svn: 145419
 2011-11-29 19:24:11 +00:00
Rafael Espindola
8e06adec06 Release notes for segmented stacks. 
Patch by Sanjoy Das.

llvm-svn: 145416
 2011-11-29 19:08:23 +00:00
Peter Collingbourne
1dac65bf58 Remove content that has been moved to Clang release notes. 
llvm-svn: 145362
 2011-11-29 02:04:48 +00:00
Peter Collingbourne
70d1e1ce8f Fix grammar. 
llvm-svn: 145361
 2011-11-29 02:04:44 +00:00
Chandler Carruth
6bf1babd92 Add a link from the LLVM release notes to the Clang release notes. 
I suspect we could profitably remove/move some of the bullet points
under Clang here to the Clang notes in order to keep things clean on
both sides. Unless I hear objections I'll start doing that once folks
have read over the Clang notes a bit.

llvm-svn: 145340
 2011-11-29 00:32:43 +00:00
Rafael Espindola
1928474c5f Expand the part about CFI a bit. 
llvm-svn: 145324
 2011-11-28 23:55:49 +00:00
Devang Patel
792ac21c3f Add documentation for llvm-cov. 
llvm-svn: 145319
 2011-11-28 23:39:25 +00:00
Joe Abbey
3ab17e44c2 Merging two bullet points into one 
llvm-svn: 145287
 2011-11-28 22:07:12 +00:00
Peter Collingbourne
a45a429eec Add OpenCL blurb to release notes. 
llvm-svn: 145270
 2011-11-28 20:04:12 +00:00
Bill Wendling
8beab76b07 Remove dead llvm.eh.sjlj.dispatchsetup intrinsic. 
llvm-svn: 145263
 2011-11-28 19:23:13 +00:00
Michael J. Spencer
fd893a8f83 Add object file related release notes. 
llvm-svn: 145254
 2011-11-28 18:20:09 +00:00
Jakob Stoklund Olesen
a5deae0dad Explain what ExeDepsFix does. 
llvm-svn: 145253
 2011-11-28 18:03:11 +00:00
Rafael Espindola
d23ec28d82 Fix spelling/grammar errors found by Duncan. 
llvm-svn: 145250
 2011-11-28 17:06:58 +00:00
Jakob Stoklund Olesen
42499e2fe5 Add a blurb about the new ExecutionDepsFix pass. 
llvm-svn: 145220
 2011-11-28 01:46:19 +00:00
Chris Lattner
586730bca4 dwarf parsing stuff. 
llvm-svn: 145207
 2011-11-27 22:39:23 +00:00
Chris Lattner
2ad1c42ff1 first pass of writing complete! 
llvm-svn: 145206
 2011-11-27 22:36:22 +00:00
Chris Lattner
a2b28b7223 arm and carve out a place ot mention segmented stacks. 
llvm-svn: 145204
 2011-11-27 22:12:32 +00:00
Rafael Espindola
ae1e153b00 Add a description of the status of segmented stacks. 
llvm-svn: 145201
 2011-11-27 22:05:46 +00:00
Chris Lattner
76bf38677e optimize, mc, x86 
llvm-svn: 145200
 2011-11-27 22:03:34 +00:00
Chris Lattner
7c3316e32f some writing. 
llvm-svn: 145198
 2011-11-27 21:30:28 +00:00
Chris Lattner
28ccd9e18c fix some out-of-date attribution. 
llvm-svn: 145197
 2011-11-27 21:02:12 +00:00
Chris Lattner
e6841be524 distribute various bullets to different sections. 
llvm-svn: 145196
 2011-11-27 20:51:47 +00:00
Chris Lattner
77d8c4ca1c rewrite the known problems section. Including a short list of individual bugs per target isn't particularly useful. Link to the target features matrix. 
llvm-svn: 145193
 2011-11-27 19:38:20 +00:00