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Author SHA1 Message Date
Dan Gohman fcbd65d27b basic-aa does support AliasAnalysis chaining now. 
llvm-svn: 149293
 2012-01-30 23:05:41 +00:00
Talin 2a7df51ea2 DenseMap::find_as() and unit tests. 
llvm-svn: 149229
 2012-01-30 06:55:43 +00:00
Jim Grosbach 65e2465550 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 75499f5d04 Fix broken link. 
llvm-svn: 148692
 2012-01-23 08:47:21 +00:00
Kostya Serebryany a5054ad2f3 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 89e0d22cc6 Fix typo. 
llvm-svn: 148497
 2012-01-19 21:50:08 +00:00
Jakob Stoklund Olesen 374ed322f2 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 36cd89e7bd 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 df9d781510 Try to clarify a little how exception handling works. 
llvm-svn: 148136
 2012-01-13 19:59:16 +00:00
Bill Wendling 49c4dfb534 Revert accidental commit. 
llvm-svn: 148065
 2012-01-12 23:06:28 +00:00
Bill Wendling ee5eaebc58 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 bbf8c9a939 Fix dead link 
llvm-svn: 147721
 2012-01-07 04:11:27 +00:00
Eli Bendersky 88676cff61 test commit (verifyiing commit access) 
llvm-svn: 147600
 2012-01-05 08:18:41 +00:00
Jakob Stoklund Olesen d19d3cab09 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 2007dc8892 Fix typo. 
llvm-svn: 147456
 2012-01-03 18:38:37 +00:00
Duncan Sands 7610e45910 Correct spelling. 
llvm-svn: 147435
 2012-01-02 16:55:01 +00:00
NAKAMURA Takumi e9d3d21988 Happy new year 2012! 
llvm-svn: 147395
 2012-01-01 08:16:56 +00:00
Nadav Rotem 4c4d254f61 Update the LangRef documentation: the codegen does support this instruction. 
llvm-svn: 147274
 2011-12-25 21:32:35 +00:00
Nadav Rotem 1a0ae42d14 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 948ec427fa Add a line to ReleaseNotes for half float. 
llvm-svn: 146939
 2011-12-20 01:10:56 +00:00
Jakob Stoklund Olesen 24159e346d 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 518cda42b9 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 09cd3568f4 Fix spacing. 
llvm-svn: 146782
 2011-12-16 23:42:35 +00:00
Eric Christopher 3e3ecd0ab6 Update documentation. 
llvm-svn: 146781
 2011-12-16 23:42:33 +00:00
Devang Patel c16e1ed4bb Clarify and fix subprogram description. 
llvm-svn: 146743
 2011-12-16 17:50:04 +00:00
Jakob Stoklund Olesen 2a05f691ab 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 d647109ff9 Add a blurb about MachineInstr bundling support. 
llvm-svn: 146603
 2011-12-14 22:57:45 +00:00
Evan Cheng c984bf8fb0 Add high level description of MachineInstr bundles. 
llvm-svn: 146589
 2011-12-14 21:32:14 +00:00
Duncan Sands 9aaec15ce3 Vectors are not aggregate types (see isAggregateType). 
llvm-svn: 146561
 2011-12-14 15:44:20 +00:00
Kostya Serebryany 30c85d1945 mention AddressSanitizer in 3.1 release notes 
llvm-svn: 146505
 2011-12-13 19:46:24 +00:00
Chris Lattner 9f2a83eb59 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 7ad1f3663c 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 e29ffffa48 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 ea07f34afd 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 1213a7a57f Hexagon backend support 
llvm-svn: 146412
 2011-12-12 21:14:40 +00:00
Daniel Dunbar 27a7489a03 LLVMBuild: Remove trailing newline, which irked me. 
llvm-svn: 146409
 2011-12-12 19:48:00 +00:00
Chandler Carruth f6bb278ee8 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 4517fe5020 Random cleanups. No description changes. 
llvm-svn: 146288
 2011-12-09 22:41:40 +00:00
Bill Wendling abe534c6cc 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 c28f3e9e0b Typo. 
llvm-svn: 146234
 2011-12-09 02:00:44 +00:00
Bill Wendling 82d9272fc2 Also pass in correct initializer here. 
llvm-svn: 146044
 2011-12-07 18:18:11 +00:00
Bill Wendling 41d3595a26 Correct initializer in example. 
llvm-svn: 146041
 2011-12-07 18:02:44 +00:00
Jakub Staszak d64c99b07f Make Release Notes HTML 4.01 Strict. 
llvm-svn: 145991
 2011-12-06 23:33:07 +00:00
Anshuman Dasgupta bcfa2f83fb Add documentation for machine-independent DFA packetizer 
llvm-svn: 145988
 2011-12-06 23:12:42 +00:00
Jakub Staszak 43d7cf6b82 Add link to builtin_expect in Release Notes. 
llvm-svn: 145979
 2011-12-06 22:31:27 +00:00
Jakub Staszak cf9af0fc3b Add link to llvm.expect in Release Notes. 
llvm-svn: 145964
 2011-12-06 20:56:36 +00:00
Dan Gohman 32772f7790 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 5f115a78cb Line up the comments in a code example. 
llvm-svn: 145908
 2011-12-06 03:31:14 +00:00
Dan Gohman 9a2a0933ed 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 b437ab8561 Move 'returns_twice' definition into alphabetical place. 
llvm-svn: 145854
 2011-12-05 21:27:54 +00:00
Nadav Rotem 3924cb0267 Add support for vectors of pointers. 
llvm-svn: 145801
 2011-12-05 06:29:09 +00:00
Jakub Staszak 5fd147f97e Fix table of contents. 
llvm-svn: 145793
 2011-12-04 20:44:25 +00:00
Jakub Staszak 5fef792d8c Add 'llvm.expect' intrinsic description. 
llvm-svn: 145792
 2011-12-04 18:29:26 +00:00
Chris Lattner f433c08659 fix broken tag 
llvm-svn: 145590
 2011-12-01 17:25:28 +00:00
Bill Wendling ad8b58b2ac More cleanups. No content change. 
llvm-svn: 145522
 2011-11-30 21:52:43 +00:00
Bill Wendling b6c2220600 Minor cleanup. No content change. 
llvm-svn: 145521
 2011-11-30 21:43:43 +00:00
Bill Wendling 3eb84cc75b 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 e9adf5c860 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 b2d03a6d00 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 b61cc44265 grammar. 
llvm-svn: 145423
 2011-11-29 19:38:09 +00:00
Benjamin Kramer 098c1d9680 Add a link to Bill's blog post. 
llvm-svn: 145419
 2011-11-29 19:24:11 +00:00
Rafael Espindola 866a22aba7 Release notes for segmented stacks. 
Patch by Sanjoy Das.

llvm-svn: 145416
 2011-11-29 19:08:23 +00:00
Peter Collingbourne 7e09afb833 Remove content that has been moved to Clang release notes. 
llvm-svn: 145362
 2011-11-29 02:04:48 +00:00
Peter Collingbourne 7d9c13d81f Fix grammar. 
llvm-svn: 145361
 2011-11-29 02:04:44 +00:00
Chandler Carruth 60062ed5dc 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 8fa4bd048b Expand the part about CFI a bit. 
llvm-svn: 145324
 2011-11-28 23:55:49 +00:00
Devang Patel 8e5bfd8349 Add documentation for llvm-cov. 
llvm-svn: 145319
 2011-11-28 23:39:25 +00:00
Joe Abbey 3483e11496 Merging two bullet points into one 
llvm-svn: 145287
 2011-11-28 22:07:12 +00:00
Peter Collingbourne 952adc32d9 Add OpenCL blurb to release notes. 
llvm-svn: 145270
 2011-11-28 20:04:12 +00:00
Bill Wendling 5ebc95ff4c Remove dead llvm.eh.sjlj.dispatchsetup intrinsic. 
llvm-svn: 145263
 2011-11-28 19:23:13 +00:00
Michael J. Spencer f7a4ed7d7f Add object file related release notes. 
llvm-svn: 145254
 2011-11-28 18:20:09 +00:00
Jakob Stoklund Olesen 979dad7bd2 Explain what ExeDepsFix does. 
llvm-svn: 145253
 2011-11-28 18:03:11 +00:00
Rafael Espindola c87cebf2bf Fix spelling/grammar errors found by Duncan. 
llvm-svn: 145250
 2011-11-28 17:06:58 +00:00
Jakob Stoklund Olesen 6d110aa84d Add a blurb about the new ExecutionDepsFix pass. 
llvm-svn: 145220
 2011-11-28 01:46:19 +00:00
Chris Lattner ef714c0b05 dwarf parsing stuff. 
llvm-svn: 145207
 2011-11-27 22:39:23 +00:00
Chris Lattner b035c31215 first pass of writing complete! 
llvm-svn: 145206
 2011-11-27 22:36:22 +00:00
Chris Lattner 7b32d97e02 arm and carve out a place ot mention segmented stacks. 
llvm-svn: 145204
 2011-11-27 22:12:32 +00:00
Rafael Espindola 799ca897e7 Add a description of the status of segmented stacks. 
llvm-svn: 145201
 2011-11-27 22:05:46 +00:00
Chris Lattner 7257f76728 optimize, mc, x86 
llvm-svn: 145200
 2011-11-27 22:03:34 +00:00
Chris Lattner 644976405f some writing. 
llvm-svn: 145198
 2011-11-27 21:30:28 +00:00
Chris Lattner 9661de7d30 fix some out-of-date attribution. 
llvm-svn: 145197
 2011-11-27 21:02:12 +00:00
Chris Lattner 6442197819 distribute various bullets to different sections. 
llvm-svn: 145196
 2011-11-27 20:51:47 +00:00
Chris Lattner 080dd7ce30 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
Chris Lattner 4857190a50 move the detailed information about the EH rewrite to a comment, Bill is 
blog'izing it.

llvm-svn: 145192
 2011-11-27 19:26:30 +00:00
Chris Lattner e9a31c40b6 tweak subprojects' section 
llvm-svn: 145191
 2011-11-27 18:53:41 +00:00
Chris Lattner 25a7790603 some random notes. 
llvm-svn: 145190
 2011-11-27 18:47:37 +00:00
Chris Lattner 3dcdc29d11 add some final random notes, I've completed my pass over all the commits. 
I'll work on turning this into something intelligible tomorrow.

llvm-svn: 145177
 2011-11-27 08:32:32 +00:00
Chris Lattner d5bb9e6c4c add some notes. 
llvm-svn: 145173
 2011-11-27 07:37:53 +00:00
Chris Lattner bc639298e5 remove asmparsing and documentation support for "volatile load", which was only produced by LLVM 2.9 and earlier. LLVM 3.0 and later prefers "load volatile". 
llvm-svn: 145172
 2011-11-27 06:56:53 +00:00
Chris Lattner ebed15e973 some notes. 
llvm-svn: 145170
 2011-11-27 06:24:49 +00:00
Chris Lattner 74a3e00ebf add some notes 
llvm-svn: 145163
 2011-11-27 05:47:57 +00:00
Benjamin Kramer 8c8486dbb2 Move the branch probability blurb into the optimizer section. Add a minimal bullet for AVX. 
llvm-svn: 145145
 2011-11-26 11:14:54 +00:00
David Chisnall 07618783f3 Added Objective-C and libc++ details to the 3.0 release notes. 
llvm-svn: 145144
 2011-11-26 10:56:17 +00:00
Benjamin Kramer a02af616b1 shpelling 
llvm-svn: 145138
 2011-11-25 21:26:00 +00:00
Benjamin Kramer 889b243fd6 Remove ZooLib from the projects list. 
I don't see how the project is using LLVM and we really can't list every user of
the clang analyzer. Sorry.

llvm-svn: 145137
 2011-11-25 21:03:06 +00:00
Chris Lattner c3e4fdcc10 add a user 
llvm-svn: 145136
 2011-11-25 20:36:17 +00:00
Chris Lattner 614d0391e9 add some notes 
llvm-svn: 145135
 2011-11-25 20:33:27 +00:00
Chris Lattner e5b37be30a add faust 
llvm-svn: 145134
 2011-11-25 20:28:16 +00:00
Jim Grosbach 651e2ee792 Add a few notes for ARM and a blurb about the MCJIT. 
llvm-svn: 145118
 2011-11-24 00:49:21 +00:00
Chris Lattner 0e439c9b7c x86/windows issues fixed. 
llvm-svn: 144878
 2011-11-17 01:42:23 +00:00