a5054ad2f3
Extend Attributes to 64 bits
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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
89e0d22cc6
Fix typo.
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llvm-svn: 148497
2012-01-19 21:50:08 +00:00
374ed322f2
Add a new kind of MachineOperand: MO_RegisterMask.
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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
36cd89e7bd
Adding a Hexagon cell for segmented stacks, as they have been implemented for X86 and not Sparc...
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Committed as obvious
llvm-svn: 148237
2012-01-16 13:16:05 +00:00
df9d781510
Try to clarify a little how exception handling works.
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llvm-svn: 148136
2012-01-13 19:59:16 +00:00
49c4dfb534
Revert accidental commit.
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llvm-svn: 148065
2012-01-12 23:06:28 +00:00
ee5eaebc58
Fix the code that was WRONG.
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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
bbf8c9a939
Fix dead link
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llvm-svn: 147721
2012-01-07 04:11:27 +00:00
88676cff61
test commit (verifyiing commit access)
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llvm-svn: 147600
2012-01-05 08:18:41 +00:00
d19d3cab09
Freeze reserved registers before starting register allocation.
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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
2007dc8892
Fix typo.
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llvm-svn: 147456
2012-01-03 18:38:37 +00:00
7610e45910
Correct spelling.
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llvm-svn: 147435
2012-01-02 16:55:01 +00:00
e9d3d21988
Happy new year 2012!
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llvm-svn: 147395
2012-01-01 08:16:56 +00:00
4c4d254f61
Update the LangRef documentation: the codegen does support this instruction.
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llvm-svn: 147274
2011-12-25 21:32:35 +00:00
1a0ae42d14
Add a few lines to the release notes:
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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
948ec427fa
Add a line to ReleaseNotes for half float.
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llvm-svn: 146939
2011-12-20 01:10:56 +00:00
24159e346d
Remove a register class that can just as well be synthesized.
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Add the new TableGen register class synthesizer feature to the release
notes.
llvm-svn: 146875
2011-12-19 16:53:40 +00:00
518cda42b9
The powers that be have decided that LLVM IR should now support 16-bit
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"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
09cd3568f4
Fix spacing.
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llvm-svn: 146782
2011-12-16 23:42:35 +00:00
3e3ecd0ab6
Update documentation.
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llvm-svn: 146781
2011-12-16 23:42:33 +00:00
c16e1ed4bb
Clarify and fix subprogram description.
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llvm-svn: 146743
2011-12-16 17:50:04 +00:00
2a05f691ab
Note ARM constant island alignment in the release notes.
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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
d647109ff9
Add a blurb about MachineInstr bundling support.
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llvm-svn: 146603
2011-12-14 22:57:45 +00:00
c984bf8fb0
Add high level description of MachineInstr bundles.
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llvm-svn: 146589
2011-12-14 21:32:14 +00:00
9aaec15ce3
Vectors are not aggregate types (see isAggregateType).
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llvm-svn: 146561
2011-12-14 15:44:20 +00:00
30c85d1945
mention AddressSanitizer in 3.1 release notes
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llvm-svn: 146505
2011-12-13 19:46:24 +00:00
9f2a83eb59
Rip llvm 3.0 out of the release notes, making room for LLVM 3.1
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llvm-svn: 146493
2011-12-13 17:55:30 +00:00
7ad1f3663c
Use the example from clang, not the GCC frontend, which doesn't exist anymore.
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llvm-svn: 146461
2011-12-13 01:07:07 +00:00
e29ffffa48
llvm-build: Switch to using the common subdirectory list instead of
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autodiscovery.
llvm-svn: 146437
2011-12-12 22:45:59 +00:00
ea07f34afd
llvm-build: Add sketchy support for preserving comments when using
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--write-llvmbuild.
llvm-svn: 146434
2011-12-12 22:45:35 +00:00
1213a7a57f
Hexagon backend support
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llvm-svn: 146412
2011-12-12 21:14:40 +00:00
27a7489a03
LLVMBuild: Remove trailing newline, which irked me.
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llvm-svn: 146409
2011-12-12 19:48:00 +00:00
f6bb278ee8
Update the LangRef documentation for llvm.ctlz and llvm.cttz to specify
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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
4517fe5020
Random cleanups. No description changes.
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llvm-svn: 146288
2011-12-09 22:41:40 +00:00
abe534c6cc
Revert r146041 et al. The FunctionPass doesn't take an address but the ID.
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llvm-svn: 146268
2011-12-09 19:11:02 +00:00
c28f3e9e0b
Typo.
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llvm-svn: 146234
2011-12-09 02:00:44 +00:00
82d9272fc2
Also pass in correct initializer here.
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llvm-svn: 146044
2011-12-07 18:18:11 +00:00
41d3595a26
Correct initializer in example.
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llvm-svn: 146041
2011-12-07 18:02:44 +00:00
d64c99b07f
Make Release Notes HTML 4.01 Strict.
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llvm-svn: 145991
2011-12-06 23:33:07 +00:00
bcfa2f83fb
Add documentation for machine-independent DFA packetizer
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llvm-svn: 145988
2011-12-06 23:12:42 +00:00
43d7cf6b82
Add link to builtin_expect in Release Notes.
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llvm-svn: 145979
2011-12-06 22:31:27 +00:00
cf9af0fc3b
Add link to llvm.expect in Release Notes.
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llvm-svn: 145964
2011-12-06 20:56:36 +00:00
32772f7790
Fix a subtle semantic issue with poison values that came up in
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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
5f115a78cb
Line up the comments in a code example.
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llvm-svn: 145908
2011-12-06 03:31:14 +00:00
9a2a0933ed
Rename "Trap Values" to "Poison Values", to better reflect their
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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
b437ab8561
Move 'returns_twice' definition into alphabetical place.
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llvm-svn: 145854
2011-12-05 21:27:54 +00:00
3924cb0267
Add support for vectors of pointers.
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llvm-svn: 145801
2011-12-05 06:29:09 +00:00
5fd147f97e
Fix table of contents.
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llvm-svn: 145793
2011-12-04 20:44:25 +00:00
5fef792d8c
Add 'llvm.expect' intrinsic description.
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llvm-svn: 145792
2011-12-04 18:29:26 +00:00
f433c08659
fix broken tag
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llvm-svn: 145590
2011-12-01 17:25:28 +00:00
ad8b58b2ac
More cleanups. No content change.
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llvm-svn: 145522
2011-11-30 21:52:43 +00:00
b6c2220600
Minor cleanup. No content change.
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llvm-svn: 145521
2011-11-30 21:43:43 +00:00
3eb84cc75b
Remove an XXX which hasn't been fixed yet. It's too late now.
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llvm-svn: 145518
2011-11-30 20:53:52 +00:00
e9adf5c860
Mention that -O4 does result in more optimization when used with
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-fplugin-arg-dragonegg-enable-gcc-optzns, though it usually isn't
a win.
llvm-svn: 145486
2011-11-30 08:46:05 +00:00
b2d03a6d00
Update the docs for some of the test-suite configure changes and
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be more clear about what to do and how to do it.
llvm-svn: 145426
2011-11-29 19:40:56 +00:00
b61cc44265
grammar.
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llvm-svn: 145423
2011-11-29 19:38:09 +00:00
098c1d9680
Add a link to Bill's blog post.
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llvm-svn: 145419
2011-11-29 19:24:11 +00:00
866a22aba7
Release notes for segmented stacks.
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Patch by Sanjoy Das.
llvm-svn: 145416
2011-11-29 19:08:23 +00:00
7e09afb833
Remove content that has been moved to Clang release notes.
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llvm-svn: 145362
2011-11-29 02:04:48 +00:00
7d9c13d81f
Fix grammar.
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llvm-svn: 145361
2011-11-29 02:04:44 +00:00
60062ed5dc
Add a link from the LLVM release notes to the Clang release notes.
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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
8fa4bd048b
Expand the part about CFI a bit.
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llvm-svn: 145324
2011-11-28 23:55:49 +00:00
8e5bfd8349
Add documentation for llvm-cov.
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llvm-svn: 145319
2011-11-28 23:39:25 +00:00
3483e11496
Merging two bullet points into one
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llvm-svn: 145287
2011-11-28 22:07:12 +00:00
952adc32d9
Add OpenCL blurb to release notes.
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llvm-svn: 145270
2011-11-28 20:04:12 +00:00
5ebc95ff4c
Remove dead llvm.eh.sjlj.dispatchsetup intrinsic.
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llvm-svn: 145263
2011-11-28 19:23:13 +00:00
f7a4ed7d7f
Add object file related release notes.
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llvm-svn: 145254
2011-11-28 18:20:09 +00:00
979dad7bd2
Explain what ExeDepsFix does.
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llvm-svn: 145253
2011-11-28 18:03:11 +00:00
c87cebf2bf
Fix spelling/grammar errors found by Duncan.
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llvm-svn: 145250
2011-11-28 17:06:58 +00:00
6d110aa84d
Add a blurb about the new ExecutionDepsFix pass.
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llvm-svn: 145220
2011-11-28 01:46:19 +00:00
ef714c0b05
dwarf parsing stuff.
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llvm-svn: 145207
2011-11-27 22:39:23 +00:00
b035c31215
first pass of writing complete!
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llvm-svn: 145206
2011-11-27 22:36:22 +00:00
7b32d97e02
arm and carve out a place ot mention segmented stacks.
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llvm-svn: 145204
2011-11-27 22:12:32 +00:00
799ca897e7
Add a description of the status of segmented stacks.
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llvm-svn: 145201
2011-11-27 22:05:46 +00:00
7257f76728
optimize, mc, x86
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llvm-svn: 145200
2011-11-27 22:03:34 +00:00
644976405f
some writing.
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llvm-svn: 145198
2011-11-27 21:30:28 +00:00
9661de7d30
fix some out-of-date attribution.
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llvm-svn: 145197
2011-11-27 21:02:12 +00:00
6442197819
distribute various bullets to different sections.
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llvm-svn: 145196
2011-11-27 20:51:47 +00:00
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.
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llvm-svn: 145193
2011-11-27 19:38:20 +00:00
4857190a50
move the detailed information about the EH rewrite to a comment, Bill is
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blog'izing it.
llvm-svn: 145192
2011-11-27 19:26:30 +00:00
e9a31c40b6
tweak subprojects' section
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llvm-svn: 145191
2011-11-27 18:53:41 +00:00
25a7790603
some random notes.
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llvm-svn: 145190
2011-11-27 18:47:37 +00:00
3dcdc29d11
add some final random notes, I've completed my pass over all the commits.
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I'll work on turning this into something intelligible tomorrow.
llvm-svn: 145177
2011-11-27 08:32:32 +00:00
d5bb9e6c4c
add some notes.
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llvm-svn: 145173
2011-11-27 07:37:53 +00:00
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".
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llvm-svn: 145172
2011-11-27 06:56:53 +00:00
ebed15e973
some notes.
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llvm-svn: 145170
2011-11-27 06:24:49 +00:00
74a3e00ebf
add some notes
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llvm-svn: 145163
2011-11-27 05:47:57 +00:00
8c8486dbb2
Move the branch probability blurb into the optimizer section. Add a minimal bullet for AVX.
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llvm-svn: 145145
2011-11-26 11:14:54 +00:00
07618783f3
Added Objective-C and libc++ details to the 3.0 release notes.
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llvm-svn: 145144
2011-11-26 10:56:17 +00:00
a02af616b1
shpelling
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llvm-svn: 145138
2011-11-25 21:26:00 +00:00
889b243fd6
Remove ZooLib from the projects list.
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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
c3e4fdcc10
add a user
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llvm-svn: 145136
2011-11-25 20:36:17 +00:00
614d0391e9
add some notes
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llvm-svn: 145135
2011-11-25 20:33:27 +00:00
e5b37be30a
add faust
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llvm-svn: 145134
2011-11-25 20:28:16 +00:00
651e2ee792
Add a few notes for ARM and a blurb about the MCJIT.
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llvm-svn: 145118
2011-11-24 00:49:21 +00:00
0e439c9b7c
x86/windows issues fixed.
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llvm-svn: 144878
2011-11-17 01:42:23 +00:00
d1eafe118d
There are already problems with building LLVM under VS2005, and it's
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quite old now. Update the documentation to reflect this, and direct
people to use VS2008 or newer.
llvm-svn: 144818
2011-11-16 19:52:13 +00:00
8cd896404a
Merge ObjCPropertyDebugInfo.html into SourceLevelDebugging.html
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llvm-svn: 144724
2011-11-15 22:59:54 +00:00
dfcdd0c5be
jakob fixed X87 inline asm!
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llvm-svn: 144719
2011-11-15 22:48:24 +00:00
7cdcbe3788
add ImmutableSet/Map dox, patch by Caitlin Sadowski!
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llvm-svn: 144716
2011-11-15 22:40:14 +00:00
Kostya Serebryany