Commit Graph

5441 Commits

Author SHA1 Message Date
Philip Reames
90f3f15da5 Introduce a 'nonnull' metadata on Load instructions.
The newly introduced 'nonnull' metadata is analogous to existing 'nonnull' attributes, but applies to load instructions rather than call arguments or returns.  Long term, it would be nice to combine these into a single construct.   The value of the load is allowed to vary between successive loads, but null is not a valid value to be loaded by any load marked nonnull.

Reviewed by: Hal Finkel
Differential Revision:  http://reviews.llvm.org/D5220




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220240 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-20 22:40:55 +00:00
Alexander Potapenko
0fea775e5c [llvm-symbolizer] Introduce the -dsym-hint option.
llvm-symbolizer will consult one of the .dSYM paths passed via -dsym-hint
if it fails to find the .dSYM bundle at the default location.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220004 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-17 00:50:19 +00:00
Rafael Espindola
2f8f1d34e3 Delete -std-compile-opts.
These days -std-compile-opts was just a silly alias for -O3.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219951 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-16 20:00:02 +00:00
Jonathan Roelofs
0ab5b9f647 Fix lang-ref doc bug: s/icmp lt/icmp slt/
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219947 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-16 19:28:10 +00:00
Peter Collingbourne
7c9c49b330 Introduce Go coding standards for LLVM.
Rather than define our own standards, we adopt a set of best practices that
are already in use by the Go community.

Differential Revision: http://reviews.llvm.org/D5761

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219646 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-14 00:40:53 +00:00
Paul Robinson
9de9951e15 Update the example of using a command-line option custom parser to
match the current implementation.

Patch by Douglas Yung!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219631 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-13 21:11:22 +00:00
Frederic Riss
6c54948916 Update dwarf::ApplePropertyAttributes enum to meaningful values.
Summary:
We currently emit an DW_AT_APPLE_property_attribute with a value that is a
bitfield describing the various attributes applied to an ObjectiveC property.
While trying to add testing to one of my dwarfdump patches that would pretty
print that, I realized this information looks totally broken and has maybe
never been correct.

As with every DWARF info, we have some enum in Dwarf.h that describes this
attribute (enum ApplePropertyAttributes). It seems however that the attribute
value is set from another definition of these flags in Sema/DeclSpec.h (enum
ObjCPropertyAttributeKind). And these 2 enums aren't in sync.

This patch updates the Dwarf.h values to the ones we are (and have been for
a very long time) emitting. We change some publicly (and even documented
in SourceLevelDebugging.rst) values, but I doubt this could be an issue as
the information has been wrong for so long...

Reviewers: echristo, dblaikie, aprantl

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5653

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219311 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-08 14:59:44 +00:00
Matt Arsenault
27069a921a Update documentation with link to Sea Islands documentation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219134 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-06 18:31:09 +00:00
Duncan P. N. Exon Smith
f13b76b94f DI: Fixup global syntax in example
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219056 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-04 15:44:01 +00:00
Duncan P. N. Exon Smith
1225b7a30a DI: Line up comments in examples
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219055 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-04 15:35:25 +00:00
Duncan P. N. Exon Smith
a472e864de DI: Fixup example IR from r219051
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219054 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-04 15:31:08 +00:00
Duncan P. N. Exon Smith
c48707aec8 DI: Prune another example
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219053 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-04 15:30:52 +00:00
Duncan P. N. Exon Smith
ffd2f5051e DI: Update and prune metadata examples
Update a couple of the examples of debug info metadata, and prune the
rest.  Point to the true reference implementation in the source.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219051 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-04 14:56:56 +00:00
Jonathan Roelofs
69ee7cb4c3 Fix typo in TableGen documentation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219018 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-03 20:46:05 +00:00
Adrian Prantl
17dfc381ef Add a reference to Phabricator.rst to docs/index.rst.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219015 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-03 20:17:32 +00:00
Duncan P. N. Exon Smith
83902832de Revert "Revert "DI: Fold constant arguments into a single MDString""
This reverts commit r218918, effectively reapplying r218914 after fixing
an Ocaml bindings test and an Asan crash.  The root cause of the latter
was a tightened-up check in `DILexicalBlock::Verify()`, so I'll file a
PR to investigate who requires the loose check (and why).

Original commit message follows.

--

This patch addresses the first stage of PR17891 by folding constant
arguments together into a single MDString.  Integers are stringified and
a `\0` character is used as a separator.

Part of PR17891.

Note: I've attached my testcases upgrade scripts to the PR.  If I've
just broken your out-of-tree testcases, they might help.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219010 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-03 20:01:09 +00:00
Dan Liew
ea01fda5b3 [sphinx cleanup] Fix unexpected indentation warning introduced by r218937
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218982 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-03 12:28:48 +00:00
Robin Morisset
6f6512cba2 Update Atomics.rst
Summary:
I changed various bits of the compilation of atomics recently, and forgot
updating the documentation. This patch just brings it up to date.

Test Plan: no change to the code

Reviewers: jfb

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5590

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218937 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-03 01:04:20 +00:00
Duncan P. N. Exon Smith
32e192aeb3 Revert "DI: Fold constant arguments into a single MDString"
This reverts commit r218914 while I investigate some bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218918 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-02 22:15:31 +00:00
Duncan P. N. Exon Smith
0917b70630 DI: Fold constant arguments into a single MDString
This patch addresses the first stage of PR17891 by folding constant
arguments together into a single MDString.  Integers are stringified and
a `\0` character is used as a separator.

Part of PR17891.

Note: I've attached my testcases upgrade scripts to the PR.  If I've
just broken your out-of-tree testcases, they might help.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218914 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-02 21:56:57 +00:00
Adrian Prantl
02474a32eb Move the complex address expression out of DIVariable and into an extra
argument of the llvm.dbg.declare/llvm.dbg.value intrinsics.

Previously, DIVariable was a variable-length field that has an optional
reference to a Metadata array consisting of a variable number of
complex address expressions. In the case of OpPiece expressions this is
wasting a lot of storage in IR, because when an aggregate type is, e.g.,
SROA'd into all of its n individual members, the IR will contain n copies
of the DIVariable, all alike, only differing in the complex address
reference at the end.

By making the complex address into an extra argument of the
dbg.value/dbg.declare intrinsics, all of the pieces can reference the
same variable and the complex address expressions can be uniqued across
the CU, too.
Down the road, this will allow us to move other flags, such as
"indirection" out of the DIVariable, too.

The new intrinsics look like this:
declare void @llvm.dbg.declare(metadata %storage, metadata %var, metadata %expr)
declare void @llvm.dbg.value(metadata %storage, i64 %offset, metadata %var, metadata %expr)

This patch adds a new LLVM-local tag to DIExpressions, so we can detect
and pretty-print DIExpression metadata nodes.

What this patch doesn't do:

This patch does not touch the "Indirect" field in DIVariable; but moving
that into the expression would be a natural next step.

http://reviews.llvm.org/D4919
rdar://problem/17994491

Thanks to dblaikie and dexonsmith for reviewing this patch!

Note: I accidentally committed a bogus older version of this patch previously.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218787 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-01 18:55:02 +00:00
Adrian Prantl
10c4265675 Revert r218778 while investigating buldbot breakage.
"Move the complex address expression out of DIVariable and into an extra"

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218782 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-01 18:10:54 +00:00
Adrian Prantl
076fd5dfc1 Move the complex address expression out of DIVariable and into an extra
argument of the llvm.dbg.declare/llvm.dbg.value intrinsics.

Previously, DIVariable was a variable-length field that has an optional
reference to a Metadata array consisting of a variable number of
complex address expressions. In the case of OpPiece expressions this is
wasting a lot of storage in IR, because when an aggregate type is, e.g.,
SROA'd into all of its n individual members, the IR will contain n copies
of the DIVariable, all alike, only differing in the complex address
reference at the end.

By making the complex address into an extra argument of the
dbg.value/dbg.declare intrinsics, all of the pieces can reference the
same variable and the complex address expressions can be uniqued across
the CU, too.
Down the road, this will allow us to move other flags, such as
"indirection" out of the DIVariable, too.

The new intrinsics look like this:
declare void @llvm.dbg.declare(metadata %storage, metadata %var, metadata %expr)
declare void @llvm.dbg.value(metadata %storage, i64 %offset, metadata %var, metadata %expr)

This patch adds a new LLVM-local tag to DIExpressions, so we can detect
and pretty-print DIExpression metadata nodes.

What this patch doesn't do:

This patch does not touch the "Indirect" field in DIVariable; but moving
that into the expression would be a natural next step.

http://reviews.llvm.org/D4919
rdar://problem/17994491

Thanks to dblaikie and dexonsmith for reviewing this patch!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218778 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-01 17:55:39 +00:00
Jyoti Allur
72db9e5b09 fix a typo in doumentation index.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218504 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-26 06:59:15 +00:00
Sylvestre Ledru
b10671bb85 Update my previous commit to fit 80 cols...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218448 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-25 10:58:16 +00:00
Sylvestre Ledru
cabd41e17c Details that -debug-only is not available when LLVM is built with --enable-optimized
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218447 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-25 10:57:00 +00:00
Jingyue Wu
04b11eb4ec [docs] Fixed a typo in Atomics.rst
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218319 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-23 17:35:28 +00:00
Peter Collingbourne
b7fe5814ea Fix sphinx warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218081 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-18 21:54:02 +00:00
Peter Collingbourne
394be6c159 LTO: introduce object file-based on-disk module format.
This format is simply a regular object file with the bitcode stored in a
section named ".llvmbc", plus any number of other (non-allocated) sections.

One immediate use case for this is to accommodate compilation processes
which expect the object file to contain metadata in non-allocated sections,
such as the ".go_export" section used by some Go compilers [1], although I
imagine that in the future we could consider compiling parts of the module
(such as large non-inlinable functions) directly into the object file to
improve LTO efficiency.

[1] http://golang.org/doc/install/gccgo#Imports

Differential Revision: http://reviews.llvm.org/D4371

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218078 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-18 21:28:49 +00:00
Daniel Sanders
d7d96ee191 [docs] Mention character array constants in docs/LangRef.rst
Summary:
They were used in the 'Module Structure' example but weren't otherwise
documented.

Credit to Reed Kotler for noticing.

Reviewers: hans

Reviewed By: hans

Subscribers: hans, llvm-commits

Differential Revision: http://reviews.llvm.org/D5191

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217583 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-11 12:02:59 +00:00
Dan Liew
ec407162c1 [sphinx cleanup]
Fix sphinx warning introduced by r217537

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217541 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-10 20:43:03 +00:00
Nico Weber
fb862fe974 Fix docs reference to inexistent class.
Patch sent via telegraph by TNorthover. Thanks!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217537 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-10 19:50:55 +00:00
Hans Wennborg
2bb4229297 LangRef: @baz should be @bar in the COMDAT example
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217520 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-10 17:05:08 +00:00
Dan Liew
c5bdff0176 Fix type error in insertvalue example in LangRef. %agg1 is of type {i32,
float} and thus cannot be used where a type {i32, {float}} is expected.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217405 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-08 21:19:46 +00:00
Sean Silva
1bd9f9b618 [docs] Document what "NFC" means in a commit message.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217292 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-06 00:19:16 +00:00
Andrew Trick
0452bfda4f Minor typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217226 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-05 04:56:43 +00:00
Nico Weber
a696808928 Fix link to 3.5 release notes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217164 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-04 15:26:10 +00:00
Joerg Sonnenberger
b9f34663cb Document !and. Fix !shl and friends -- they provide binary operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217034 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-03 13:17:03 +00:00
Eric Christopher
d5dd8ce2a5 Reinstate "Nuke the old JIT."
Approved by Jim Grosbach, Lang Hames, Rafael Espindola.

This reinstates commits r215111, 215115, 215116, 215117, 215136.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216982 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-02 22:28:02 +00:00
Rafael Espindola
6cae39f284 Add a note about AuroraUX to the release notes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216938 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-02 19:49:39 +00:00
Matt Arsenault
f9139d78f5 Add note to documentation about machine node chains.
I've been assuming chain operands were always the first operand,
since the documentation says this. I was confused about why they
were missing after instruction selection. Apparently the convention
changes to using the last operand for MachineSDNodes and I've never
noticed before.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216934 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-02 19:18:52 +00:00
Robin Morisset
217b38e19a Fix typos in comments, NFC
Summary: Just fixing comments, no functional change.

Test Plan: N/A

Reviewers: jfb

Subscribers: mcrosier, llvm-commits

Differential Revision: http://reviews.llvm.org/D5130

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216784 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-29 21:53:01 +00:00
Alexey Samsonov
79e9b30b11 Introduce -DLLVM_USE_SANITIZER=Undefined CMake option to build UBSan-ified version of LLVM/Clang.
I've fixed most of the simple bugs and currently "check-llvm" test suite
has 26 failures, and "check-clang" suite has 5 failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216701 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-29 00:50:36 +00:00
Reid Kleckner
44b3a0b411 Declare that musttail calls in variadic functions forward the ellipsis
Summary:
There is no functionality change here except in the way we assemble and
dump musttail calls in variadic functions. There's really no need to
separate out the bits for musttail and "is forwarding varargs" on call
instructions. A musttail call by definition has to forward the ellipsis
or it would fail verification.

Reviewers: chandlerc, nlewycky

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D4892

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216423 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-26 00:33:28 +00:00
Hans Wennborg
21f375620d ProgrammersManual: the flag is called -debug-only
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216316 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-23 04:34:58 +00:00
Rafael Espindola
e5e847a500 Clear the llvm release notes to make room for 3.6.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216292 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-22 21:57:38 +00:00
David Blaikie
c7260209a8 Use DILexicalBlockFile, rather than DILexicalBlock, to track discriminator changes to ensure discriminator changes don't introduce new DWARF DW_TAG_lexical_blocks.
Somewhat unnoticed in the original implementation of discriminators, but
it could cause instructions to end up in new, small,
DW_TAG_lexical_blocks due to the use of DILexicalBlock to track
discriminator changes.

Instead, use DILexicalBlockFile which we already use to track file
changes without introducing new scopes, so it works well to track
discriminator changes in the same way.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216239 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-21 22:45:21 +00:00
Eric Fiselier
29863d8e18 [LIT] Remove documentation for method since it does not exist
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216204 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-21 18:52:58 +00:00
Dan Liew
0ea6d4421c Add note to LangRef about how function arguments can be unnamed and
how this affects the numbering of unnamed temporaries.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216070 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-20 15:06:30 +00:00
Duncan P. N. Exon Smith
5a466d37d8 LangRef: Move example of function-scope uselistorder to a function
Should make the example added in r216025 a little more clear.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216027 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-19 21:48:04 +00:00