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820 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen 0cdf264491 Note x86 regmask operands in release notes. 
llvm-svn: 150712
 2012-02-16 18:22:39 +00:00
Bill Wendling 0891de0332 Add blurb about module flags and reformat a bit. 
llvm-svn: 150677
 2012-02-16 10:23:43 +00:00
Bill Wendling b377fc3bfa Rephrase to add clarity. 
llvm-svn: 149972
 2012-02-07 08:42:29 +00:00
Bill Wendling 9228b3e37c Document the 'unwind' removal. 
llvm-svn: 149914
 2012-02-06 21:59:44 +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
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
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
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
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
Jakub Staszak d64c99b07f Make Release Notes HTML 4.01 Strict. 
llvm-svn: 145991
 2011-12-06 23:33:07 +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
Chris Lattner f433c08659 fix broken tag 
llvm-svn: 145590
 2011-12-01 17:25:28 +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
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
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
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
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
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 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