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609 Commits

Author SHA1 Message Date
Chris Lattner bbd8bd3257 tidy up and expound more on how half-float works. 
llvm-svn: 98524
 2010-03-14 23:03:31 +00:00
Anton Korobeynikov cd4dd9c1db Document fp16 intrinsics 
llvm-svn: 98505
 2010-03-14 18:42:47 +00:00
Chris Lattner a179e4d0a8 add support, testcases, and dox for the new GHC calling 
convention.  Patch by David Terei!

llvm-svn: 98212
 2010-03-11 00:22:57 +00:00
Evan Cheng 5967649780 Add documentation on sibling call optimization. Rename tailcall2.ll test to sibcall.ll. 
llvm-svn: 97980
 2010-03-08 21:05:02 +00:00
Devang Patel 9984bd6092 Add metadata example. 
llvm-svn: 97764
 2010-03-04 23:44:48 +00:00
Chris Lattner 47f2a839ec attributes are not part of types anymore, patch by James Woodyatt! 
llvm-svn: 97557
 2010-03-02 06:36:51 +00:00
Dan Gohman 6232f73c7b PerformTailCallOpt was renamed to GuaranteedTailCallOpt to 
better reflect its meaning, now that tail call optimizations
are done by default in some cases.

llvm-svn: 97530
 2010-03-02 01:08:11 +00:00
Dan Gohman a269a0a667 Fix spelling. 
llvm-svn: 97447
 2010-03-01 17:41:39 +00:00
Bill Wendling bc4024f72c Fix HTML. 
llvm-svn: 97170
 2010-02-25 21:23:24 +00:00
Dan Gohman 1ad1499d14 Fix a typo. 
llvm-svn: 97144
 2010-02-25 16:51:31 +00:00
Dan Gohman 8848111952 Clarify the description of pointer types, and move the 
address space content to its own paragraph.

llvm-svn: 97143
 2010-02-25 16:50:07 +00:00
Dan Gohman 8ad777dc75 Update LangRef to match the code; pointers default to being 64-bit. 
llvm-svn: 96873
 2010-02-23 02:44:03 +00:00
David Greene 9641d06809 Add support for emitting non-temporal stores for DAGs marked 
non-temporal.  Fix from r96241 for botched encoding of MOVNTDQ.

Add documentation for !nontemporal metadata.

Add a simpler movnt testcase.

llvm-svn: 96386
 2010-02-16 20:50:18 +00:00
Chris Lattner 392be58cad Add support for a union type in LLVM IR. Patch by Talin! 
llvm-svn: 96011
 2010-02-12 20:49:41 +00:00
Charles Davis be5557e86b Add a new function attribute, 'alignstack'. It will indicate (when the backends 
implement support for it) that the stack should be forcibly realigned in the
prologue (and the process reversed in the epilogue).

llvm-svn: 95945
 2010-02-12 00:31:15 +00:00
Jakob Stoklund Olesen 74bb06c0f0 Reintroduce the InlineHint function attribute. 
This time it's for real! I am going to hook this up in the frontends as well.

The inliner has some experimental heuristics for dealing with the inline hint.
When given a -respect-inlinehint option, functions marked with the inline
keyword are given a threshold just above the default for -O3.

We need some experiments to determine if that is the right thing to do.

llvm-svn: 95466
 2010-02-06 01:16:28 +00:00
Chris Lattner c2f8f16162 move "Metadata Nodes and Metadata Strings" section to the right place in the 
document and edit it.

llvm-svn: 93559
 2010-01-15 21:50:19 +00:00
Eric Christopher 8444d7536c Remove the InlineHint attribute. There are no current or planned 
users.

llvm-svn: 93558
 2010-01-15 21:36:30 +00:00
Chris Lattner 97257f8e40 mention that unwind isn't to be trusted, patch by Dustin Laurence 
llvm-svn: 93518
 2010-01-15 18:08:37 +00:00
Devang Patel d1a8969dd2 Add top level section for named metadata. 
llvm-svn: 93172
 2010-01-11 19:35:55 +00:00
Jeffrey Yasskin f991bbb0c1 Improve unclear bits and inaccuracies in structure and insertvalue 
documentation.

Patch by Dustin Laurence!

llvm-svn: 93170
 2010-01-11 19:19:26 +00:00
Jeffrey Yasskin b867746a05 Clarify the requirements for a "tail call" to actually be optimized into a 
jump.  People clearly weren't finding the extra requirements in
CodeGenerator.html.

llvm-svn: 93070
 2010-01-09 19:44:16 +00:00
Chris Lattner 0de4caa57b improve documentation for linkonce to be less confusing. 
llvm-svn: 93066
 2010-01-09 19:15:14 +00:00
Eric Christopher 3070e16e6f Grammar thinko. 
llvm-svn: 93027
 2010-01-08 21:42:39 +00:00
Devang Patel e307348325 NamedMDNode is a collection MDNodes. 
llvm-svn: 92761
 2010-01-05 20:41:31 +00:00
Eric Christopher 31e39bd3d4 Update docs for bitcode changes. For object size checking we won't 
work with partial objects so just count the type as a boolean. Update
appropriately.

llvm-svn: 91954
 2009-12-23 00:29:49 +00:00
Eric Christopher 455c5776e2 More updates to objectsize intrinsic docs. 
llvm-svn: 90644
 2009-12-05 02:46:03 +00:00
Eric Christopher 8aa46bc6fd Update per Bill's comments. Work in progress. 
llvm-svn: 90271
 2009-12-01 22:28:41 +00:00
Eric Christopher 7348432ade First pass at llvm.objectsize documentation. 
llvm-svn: 90116
 2009-11-30 08:03:53 +00:00
Duncan Sands 31c0e0ee35 Vector types are no longer required to have a power-of-two length. 
llvm-svn: 90004
 2009-11-27 13:38:03 +00:00
Duncan Sands ee7425cc56 These code generator limitations have been removed. 
llvm-svn: 90003
 2009-11-27 12:33:22 +00:00
Dan Gohman c74bc28297 The inbounds keyword isn't relevant to overindexing of 
static array types. Thanks to Duncan for pointing this out!

llvm-svn: 86576
 2009-11-09 19:01:53 +00:00
Dan Gohman 66c4d61010 Remove the "special case" for zero-length arrays, and rephrase this 
paragraph to be more precise.

llvm-svn: 86572
 2009-11-09 18:40:39 +00:00
Chris Lattner a381effe72 add the ability for TargetData to return information about legal integer 
datatypes on a given CPU.  This is intended to allow instcombine and other
transformations to avoid converting big sequences of operations to an
inconvenient width, and will help clean up after SRoA.  See also "Adding 
legal integer sizes to TargetData" on Feb 1, 2009 on llvmdev, and PR3451.

Comments welcome.

llvm-svn: 86370
 2009-11-07 09:35:34 +00:00
Bill Wendling 33fef7e4e5 Add missing end-tag. 
llvm-svn: 85769
 2009-11-02 00:25:26 +00:00
Bill Wendling 7f4a336785 Some formatting changes. 
llvm-svn: 85768
 2009-11-02 00:24:16 +00:00
Chris Lattner aa99c94e2a Revert 85678/85680. The decision is to stay with the current form of 
indirectbr, thus we don't need "blockaddr(@func, null)".  Eliminate it
for simplicity.

llvm-svn: 85699
 2009-11-01 01:27:45 +00:00
Chris Lattner b2c0e243c5 Make blockaddress(@func, null) be valid, and make 'deleting a basic 
block with a blockaddress still referring to it' replace the invalid 
blockaddress with a new blockaddress(@func, null) instead of a 
inttoptr(1).

This changes the bitcode encoding format, and still needs codegen 
support (this should produce a non-zero value, referring to the entry
block of the function would also be quite reasonable).

llvm-svn: 85678
 2009-10-31 20:08:37 +00:00
Gabor Greif 03ab4dcff9 use metavariable <result> instead of SSA name %result for consistency 
llvm-svn: 85388
 2009-10-28 13:14:50 +00:00
Gabor Greif bd0328f668 ooops, SSA name should not be part of the link 
llvm-svn: 85387
 2009-10-28 13:05:07 +00:00
Gabor Greif f50fd57543 advertise new syntax for unnamed instructions 
and eliminate confusing double-use of SSA names
(work in progress)

llvm-svn: 85385
 2009-10-28 09:21:30 +00:00
Chris Lattner d04cb6d0fa rename indbr -> indirectbr to appease the residents of #llvm. 
llvm-svn: 85351
 2009-10-28 00:19:10 +00:00
Chris Lattner b4f2a24363 typo 
llvm-svn: 85322
 2009-10-27 21:52:54 +00:00
Chris Lattner 5c5f0ac362 you can't take the address of the entry block of a function. 
llvm-svn: 85321
 2009-10-27 21:49:40 +00:00
Chris Lattner da37b30b21 improvements from gabor. 
llvm-svn: 85320
 2009-10-27 21:44:20 +00:00
Chris Lattner 2bfd320226 fix things pointed out by Dan! 
llvm-svn: 85310
 2009-10-27 21:19:13 +00:00
Chris Lattner e4801f7844 document the forthcoming blockaddress constant. 
llvm-svn: 85306
 2009-10-27 21:01:34 +00:00
Chris Lattner 6506d6c3d7 fix pasto pointed out by Rafael 
llvm-svn: 85294
 2009-10-27 20:27:24 +00:00
Chris Lattner 3ed871fe62 add enough support for indirect branch for the feature test to pass 
(assembler,asmprinter, bc reader+writer) and document it.  Codegen
currently aborts on it.

llvm-svn: 85274
 2009-10-27 19:13:16 +00:00
Nick Lewycky d20fd59e29 Fix reversed logic spotted by Owen Anderson. 
llvm-svn: 85251
 2009-10-27 16:56:58 +00:00
Victor Hernandez a70c6dff97 Remove all references to MallocInst and FreeInst 
llvm-svn: 85177
 2009-10-26 23:44:29 +00:00
Dale Johannesen 1cfb958b00 Rename msasm to alignstack per review. 
llvm-svn: 84795
 2009-10-21 23:28:00 +00:00
Dale Johannesen 63c94fe1e2 Documentation for the new msasm flag, which is no 
worse than the rest of the asm documentation.

llvm-svn: 84037
 2009-10-13 21:56:55 +00:00
Nick Lewycky 9bc890425a Force memory use markers to have a ConstantInt for the size argument. 
llvm-svn: 83960
 2009-10-13 07:57:33 +00:00
Nick Lewycky 6f7d8347c1 Add new "memory use marker" intrinsics. These indicate lifetimes and invariant 
sections of memory objects.

llvm-svn: 83953
 2009-10-13 07:03:23 +00:00
Benjamin Kramer 0f4203861f Documentation: Perform automated correction of common typos. 
llvm-svn: 83849
 2009-10-12 14:46:08 +00:00
Chris Lattner 80d73c7ee7 fix broken anchors. 
llvm-svn: 83715
 2009-10-10 18:26:06 +00:00
Nick Lewycky 93e06a57c9 Remove the "metadata*" type and simplify the code it complicated. This was only 
used to support GlobalVariables storing MDNodes, back when they were derived
from Constant before the introduction of NamedMDNode, but never removed.

llvm-svn: 82943
 2009-09-27 23:27:42 +00:00
Nick Lewycky 14d1cccc2b Remove dead code from this function and optimize. Update its corresponding 
LangRef entry too.

llvm-svn: 82890
 2009-09-27 07:55:32 +00:00
Nick Lewycky 84a1eeb7ed Move the integer type out of 'derived' and into 'primitive'. This permits us 
to explain that derived types are all composed of other types, which primitive
types aren't. Without moving integer out of derived, this wouldn't be true.

Perform a few trivial cleanups; 'i1' went from a link to #t_primitive to
#t_integer (a holdover from when it was a bool type I suppose).

llvm-svn: 82884
 2009-09-27 00:45:11 +00:00
Dale Johannesen 722212d1a0 Revise C library functions description to be vaguer, per Chris. 
llvm-svn: 82776
 2009-09-25 17:04:42 +00:00
Dale Johannesen 68f971b1d6 Clarify that llvm attaches C language semantics to 
functions with names that match the C library.

llvm-svn: 82701
 2009-09-24 18:38:21 +00:00
Chris Lattner 92ada5dc52 more typos 
llvm-svn: 81499
 2009-09-11 01:49:31 +00:00
Chris Lattner 10ff0c1862 another typo 
llvm-svn: 81243
 2009-09-08 19:45:34 +00:00
Chris Lattner 6760e54c92 fix a couple typos pointed out by edwin and duncan 
llvm-svn: 81219
 2009-09-08 15:13:16 +00:00
Chris Lattner a34a718c4b add some more notes. 
llvm-svn: 81170
 2009-09-07 23:33:52 +00:00
Chris Lattner ec72b9bbcf describe undef semantics in some more detail. 
llvm-svn: 81167
 2009-09-07 22:52:39 +00:00
Dan Gohman 957b1316e6 Fix the syntax of add/sub/mul nsw/nuw and sdiv exact. 
llvm-svn: 80805
 2009-09-02 17:31:42 +00:00
Dale Johannesen 2aaf539564 Add an 'inline hint' attribute to represent source 
code hints that it would be a good idea to inline
a function ("inline" keyword).  No functional change
yet; FEs do not emit this and inliner does not use it.

llvm-svn: 80063
 2009-08-26 01:08:21 +00:00
Chris Lattner e7f064ed2b improve documentation for linker_private linkage. 
llvm-svn: 79893
 2009-08-24 04:32:16 +00:00
Dan Gohman 2de532c132 Clarify a few things in the inbounds description. 
Describing inbounds in terms of infinitely precise arithmetic prohibits
the assumption address-space-sized integer arithmetic will wrap, with
a wrapped-around value landing within the same object.

llvm-svn: 79538
 2009-08-20 17:08:17 +00:00
Chris Lattner 0aff0b2b58 common globals may also not be marked constant. 
llvm-svn: 78169
 2009-08-05 05:41:44 +00:00
Chris Lattner d055488c72 Clarify common linkage and the requirements on it. Enforce 
them in the verifier.

llvm-svn: 78160
 2009-08-05 05:21:07 +00:00
Dan Gohman 61acaaa0f0 Add one-past-the-end language to the inbounds keyword. 
llvm-svn: 77460
 2009-07-29 16:00:30 +00:00
Chris Lattner a40b912352 some wording changes. 
llvm-svn: 77443
 2009-07-29 06:44:13 +00:00
Andreas Bolka 8ae4e24c67 Fix a few typos and add links. 
llvm-svn: 77403
 2009-07-29 00:02:05 +00:00
Dan Gohman 1639c3905e Add a new keyword 'inbounds' for use with getelementptr. See the 
LangRef.html changes for details.

llvm-svn: 77259
 2009-07-27 21:53:46 +00:00
Andreas Bolka e39f03351d Fix typo. 
llvm-svn: 77244
 2009-07-27 20:37:10 +00:00
Dan Gohman 6154a01cee Following discussion on llvm-dev ("proposed new rule for getelementptr"), 
add a new "Pointer Aliasing Rules" section.

llvm-svn: 77216
 2009-07-27 18:07:55 +00:00
Dan Gohman 6b8677015d Update to new syntax. 
llvm-svn: 77043
 2009-07-25 02:23:48 +00:00
Dan Gohman 902dfff8b6 Rename the new unsigned and signed keywords to nuw and nsw, 
which stand for no-unsigned-wrap and no-signed-wrap.

llvm-svn: 76810
 2009-07-22 22:44:56 +00:00
Dan Gohman 71dfd782ce Misc. doc fixes following suggestions from Eli. 
llvm-svn: 76699
 2009-07-22 00:04:19 +00:00
Dan Gohman b07de44d5a Documentation for the new non-overflow and exact keywords. 
llvm-svn: 76495
 2009-07-20 22:41:19 +00:00
Chris Lattner 58f9bb2ccd implement a new magic global "llvm.compiler.used" which is like llvm.used, but 
doesn't cause ".no_dead_strip" to be emitted on darwin.

llvm-svn: 76399
 2009-07-20 06:14:25 +00:00
Chris Lattner ae76db5edd document llvm.used and llvm.metadata. Stub out llvm.global_[cd]tors 
llvm-svn: 76396
 2009-07-20 05:55:19 +00:00
Bill Wendling 8693ef8558 Rename the index to linkage types. 
llvm-svn: 76394
 2009-07-20 02:41:50 +00:00
Bill Wendling 3023511345 More reformatting. 
llvm-svn: 76393
 2009-07-20 02:39:26 +00:00
Bill Wendling 972b720cc1 Fix HTML violations. 
llvm-svn: 76392
 2009-07-20 02:32:41 +00:00
Bill Wendling d9a66f73c8 Obsessivly reformat. 
llvm-svn: 76391
 2009-07-20 02:29:24 +00:00
Bill Wendling a3c6f6bffa Add plumbing for the `linker_private' linkage type. This type is meant for 
"private" symbols which the assember shouldn't strip, but which the linker may
remove after evaluation. This is mostly useful for Objective-C metadata.

This is plumbing, so we don't have a use of it yet. More to come, etc.

llvm-svn: 76385
 2009-07-20 01:03:30 +00:00
Chris Lattner cb3f64f945 fix some typos pointed out by Hidenobu Seki 
llvm-svn: 76342
 2009-07-18 21:47:15 +00:00
Chris Lattner fd8dea4c47 end sentence in period, draw attention to the fact that you should 
only do this if you are a crazy russian hacker. ;-)

llvm-svn: 76241
 2009-07-17 21:14:28 +00:00
Anton Korobeynikov c8ce7b08ba Add support for naked functions 
llvm-svn: 76198
 2009-07-17 18:07:26 +00:00
Chris Lattner 7b9d6ebb9c remove llvm.part.set.* and llvm.part.select.*. They have never been 
implemented in codegen, have no frontend to generate them, and are 
better implemented with pattern matching (like the ppc backend does
to generate rlwimi/rlwinm etc).

PR4543

llvm-svn: 75430
 2009-07-12 21:08:53 +00:00
Nick Lewycky a21d3daadc Remove the vicmp and vfcmp instructions. Because we never had a release with 
these instructions, no autoupgrade or backwards compatibility support is
provided.

llvm-svn: 74991
 2009-07-08 03:04:38 +00:00
Duncan Sands 2ae473f739 Clarify that if the alignment is zero then an alignment 
compatible with the type will be used (at least the ABI
alignment).

llvm-svn: 73827
 2009-06-20 13:26:06 +00:00
Eli Friedman 8bc032c97c Remove the "llvm.umul.with.overflow is broken" warning; it should be 
essentially working now, at least for common cases, and it shouldn't 
silently generate bad code.

llvm-svn: 73484
 2009-06-16 10:24:13 +00:00
Dan Gohman 405cf6c282 Rewrite the noredzone description, attempting to avoid confusing language. 
llvm-svn: 73421
 2009-06-15 21:18:01 +00:00
Dan Gohman 1b1b7e1fbd Reword the description of the noredzone attribute. 
llvm-svn: 73394
 2009-06-15 17:37:09 +00:00
Devang Patel 310fd4ad03 Document noredzone and noimplicitfloat function attributes. 
llvm-svn: 73246
 2009-06-12 19:45:19 +00:00