Commit Graph

127389 Commits

Author SHA1 Message Date
Dmitry Vyukov 665ce2a2f4 tsan: enabled report suppression for signal-unsafe reports
llvm-svn: 156765
2012-05-14 15:28:03 +00:00
Dmitry Vyukov d004b99cc6 tsan: fix output_tests script to actually verify tests results
llvm-svn: 156764
2012-05-14 15:25:35 +00:00
Jakob Stoklund Olesen 066fba1a82 Consider ad hoc aliasing when building RegUnits.
Register units can be used to compute if two registers overlap:

  A overlaps B iff units(A) intersects units(B).

With this change, the above holds true even on targets that use ad hoc
aliasing (currently only ARM). This means that register units can be
used to implement regsOverlap() more efficiently, and the register
allocator can use the concept to model interference.

When there is no ad hoc aliasing, the register units correspond to the
maximal cliques in the register overlap graph. This is optimal, no other
register unit assignment can have fewer units.

With ad hoc aliasing, weird things are possible, and we don't try too
hard to compute the maximal cliques. The current approach is always
correct, and it works very well (probably optimally) as long as the ad
hoc aliasing doesn't have cliques larger than pairs. It seems unlikely
that any target would need more.

llvm-svn: 156763
2012-05-14 15:20:39 +00:00
Jakob Stoklund Olesen 534848b1c7 Record the ad hoc aliasing graph in CodeGenRegister.
The ad hoc aliasing specified in the 'Aliases' list in .td files is
currently only used by computeOverlaps(). It will soon be needed to
build accurate register units as well, so build the undirected graph in
CodeGenRegister::buildObjectGraph() instead.

Aliasing is a symmetric relationship with only one direction specified
in the .td files. Make sure both directions are represented in
getExplicitAliases().

llvm-svn: 156762
2012-05-14 15:12:37 +00:00
Jakob Stoklund Olesen 50ecd0ff16 Compute topological signatures of registers.
TableGen creates new register classes and sub-register indices based on
the sub-register structure present in the register bank. So far, it has
been doing that on a per-register basis, but that is not very efficient.

This patch teaches TableGen to compute topological signatures for
registers, and use that to reduce the amount of redundant computation.
Registers get the same TopoSig if they have identical sub-register
structure.

TopoSigs are not currently exposed outside TableGen.

llvm-svn: 156761
2012-05-14 15:10:07 +00:00
Jakob Stoklund Olesen 2fad493fe4 Add BitVector::anyCommon().
The existing operation (A & B).any() is very slow.

llvm-svn: 156760
2012-05-14 15:01:19 +00:00
Dmitry Vyukov f5cbda29cd tsan: make addr2line symbolizer understand dynamic libraries
Collect info about all dynamic libraries in the process (name, base, size).
Determine to what dyn lib the address relates, route request to addr2line instance for the lib.

llvm-svn: 156759
2012-05-14 14:38:29 +00:00
Dmitry Vyukov fa44dc5623 tsan: update output tests to race on heap memory
Races on stack of main thread are problematic for COMPAT mapping, because it's not 1-to-1 and race addr is not properly mapped from shadow back to application memory. 
Update output tests to race heap memory.

llvm-svn: 156758
2012-05-14 14:00:07 +00:00
Stepan Dyatkovskiy 3dea421826 SwitchInst cosmetics: renamed "Hash" method to "hash"
llvm-svn: 156757
2012-05-14 08:26:31 +00:00
Bill Wendling c3fd480203 Formatting changes. Remove the '...' placeholders.
llvm-svn: 156756
2012-05-14 08:11:53 +00:00
Bill Wendling ea857e1b9f Use ArrayRef instead of an explicit vector type.
llvm-svn: 156755
2012-05-14 07:53:40 +00:00
Bill Wendling e8f2cdf891 Add blurb about Julia.
llvm-svn: 156754
2012-05-14 06:23:51 +00:00
Gregory Szorc 8eac05c362 [clang.py] Implement Cursor.canonical
llvm-svn: 156753
2012-05-14 03:56:33 +00:00
Gregory Szorc 71efa09fa7 [clang.py] Implement Cursor.result_type
llvm-svn: 156752
2012-05-14 03:53:29 +00:00
Jordy Rose 0b9cfa2b06 Test for -fdebugger-objc-literal: missing methods should be generated like missing classes.
llvm-svn: 156746
2012-05-13 20:36:47 +00:00
Justin Holewinski e65f29ff62 ReleaseNotes: Add info on PTX back-end
llvm-svn: 156745
2012-05-13 17:32:35 +00:00
Benjamin Kramer 0b03cbd416 Hexagon: Initialize TBB to 0.
Found by valgrind.

llvm-svn: 156744
2012-05-13 15:13:22 +00:00
Jean-Daniel Dupas 81b82a0ebf Fix Xcode case (Upper X, lower c)
llvm-svn: 156743
2012-05-13 14:36:15 +00:00
Jean-Daniel Dupas a8bfc41ea7 Fix Xcode case (Upper X, lower c)
llvm-svn: 156742
2012-05-13 14:32:11 +00:00
Dmitry Vyukov b078a33151 tsan: fix mmap fd
This is mostly to test my commit access.
Fixes fd passed to mmap(), -1 is the proper invalid fd.

llvm-svn: 156741
2012-05-13 14:24:46 +00:00
Benjamin Kramer 959f8afaa0 ReleaseNotes: Add a note about zero_undef on llvm.cttz/ctlz. Extend x86 section. Add a bullet for dwarf access tables.
llvm-svn: 156740
2012-05-13 13:10:35 +00:00
Benjamin Kramer cd1436ddc0 ReleaseNotes: Add a blurb about llvm-mc -g and move inliner changes into the optimizer sections. Verbosify some bullets.
llvm-svn: 156739
2012-05-13 12:01:16 +00:00
Benjamin Kramer 34b714fc8d ReleaseNotes: Document that LLVM was rewritten in python.
^~~~
                            llvm-build

llvm-svn: 156738
2012-05-13 11:46:05 +00:00
Benjamin Kramer 121e760b2a ReleaseNotes: Add bullets for removed targets. Extend the note about llvm-ld removal.
llvm-svn: 156737
2012-05-13 11:28:46 +00:00
Benjamin Kramer a10adf5fdb Outline some clang 3.1 highlights off the top of my head.
llvm-svn: 156736
2012-05-13 10:40:08 +00:00
Benjamin Kramer d3684057c6 Add a link for every project.
llvm-svn: 156735
2012-05-13 10:21:51 +00:00
Bill Wendling 374e9e825f Add blurb for LLVM D Compiler.
llvm-svn: 156733
2012-05-13 10:00:58 +00:00
Bill Wendling 60639ea6ff Add blurbs for pocl and TCE.
llvm-svn: 156732
2012-05-13 09:59:27 +00:00
Bill Wendling 4fefcdb179 Add OSL blurb.
llvm-svn: 156731
2012-05-13 09:55:24 +00:00
Bill Wendling 3f853ad8f8 Add FAUST blurb.
llvm-svn: 156730
2012-05-13 09:52:48 +00:00
Nadav Rotem e963870f77 Fix the tool documentation
llvm-svn: 156729
2012-05-13 05:52:56 +00:00
Rafael Espindola e200f1cb75 Refactor all the
if (Inherited)
    Attr->setInherited(true);

To a central location.

llvm-svn: 156728
2012-05-13 03:25:18 +00:00
Rafael Espindola 9869c3a10f Produce a warning for mismatched section attributes. Completest pr9356.
llvm-svn: 156727
2012-05-13 02:42:42 +00:00
Rafael Espindola bac0fdbd0b We were already passing the case in pr9356. Add it to attributes.c to make
sure we don't regress. I will add a warning in a sec.

llvm-svn: 156726
2012-05-13 01:56:10 +00:00
Gregory Szorc 43cb4edd84 Document Python bindings in release notes
llvm-svn: 156724
2012-05-12 21:12:22 +00:00
Benjamin Kramer 29c2b4330c Add support for __attribute__((hot)) and __attribute__((cold)).
Currently cold functions are marked with the "optsize" attribute in CodeGen
so they are always optimized for size.  The hot attribute is just ignored,
LLVM doesn't have a way to express hotness at the moment.

llvm-svn: 156723
2012-05-12 21:10:52 +00:00
Gregory Szorc c4b649d50a [clang.py] Followup to TranslationUnit refactor
* Document index argument in TranslationUnit.from_source
* Add numeric error code to TranslationUnitSaveError string representation
* Use None instead of [] for default argument value in
  TranslationUnit.codeComplete

llvm-svn: 156722
2012-05-12 20:49:13 +00:00
Gregory Szorc dcbc96705d Add Python binding info to release notes
llvm-svn: 156721
2012-05-12 20:45:56 +00:00
Jordy Rose d3fb1773e2 [analyzer] Test case: p->x is the same as p[0].x. (PR7297)
llvm-svn: 156720
2012-05-12 17:32:59 +00:00
Jordy Rose 4af4487ba4 Only check NSArray/NSDictionary boxing method params once.
Once we've found a "good" method, we don't need to check its argument types
again. (Even if we might have later found a "bad" method, we were already
caching the method we first looked up.)

llvm-svn: 156719
2012-05-12 17:32:56 +00:00
Jordy Rose aca01f9c93 80-col violations and minor reformatting. No functionality change.
llvm-svn: 156718
2012-05-12 17:32:52 +00:00
Jordy Rose 08e500c999 Clean up ObjC boxing method checks by reducing duplicated code.
llvm-svn: 156717
2012-05-12 17:32:44 +00:00
Benjamin Kramer c7eda3ee9c Fix spacing after if.
llvm-svn: 156716
2012-05-12 16:52:21 +00:00
Rafael Espindola f1bfae5406 Remove unused variable. Thanks to Dmitri Gribenko for noticing it.
llvm-svn: 156715
2012-05-12 16:35:00 +00:00
Rafael Espindola 47b7dac220 Add support for the .rept directive. Patch by Vladmir Sorokin. I added support
for nesting.

llvm-svn: 156714
2012-05-12 16:31:10 +00:00
Jordy Rose 890f4577b1 Don't crash on boxed strings when +stringWithUTF8String: is missing.
Also, unify some diagnostics for boxed expressions that have the same form.

Fixes PR12804.

llvm-svn: 156713
2012-05-12 15:53:41 +00:00
Benjamin Kramer 6bee7f750d ELF: Add support for the asm .version directive.
llvm-svn: 156712
2012-05-12 14:30:47 +00:00
Alexander Potapenko a1c3c6582c Increase error_message_buffer_size to 64K (16K is insufficient for large programs)
llvm-svn: 156711
2012-05-12 12:33:41 +00:00
Evgeniy Stepanov d989be1386 Fix GetFrameNameByAddr hitting stale stack guards.
In the current implementation AsanThread::GetFrameNameByAddr scans the
stack for a magic guard value to locate base address of the stack
frame. This is not reliable, especially on ARM, where the code that
stores this magic value has to construct it in a register from two
small intermediates; this register can then end up stored in a random
stack location in the prologue of another function.

With this change, GetFrameNameByAddr scans the shadow memory for the
signature of a left stack redzone instead. It is now possible to
remove the magic from the instrumentation pass for additional
performance gain. We keep it there for now just to make sure the new
algorithm does not fail in some corner case.

llvm-svn: 156710
2012-05-12 12:33:10 +00:00
Benjamin Kramer 95d31bcba5 AsmParser: Add support for the .purgem directive.
Based on a patch by Team PaX.

llvm-svn: 156709
2012-05-12 11:21:46 +00:00