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Meador Inge [Wed, 20 Jun 2012 23:57:00 +0000 (23:57 +0000)]
Put space after "code-block::".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158880
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Jakob Stoklund Olesen [Wed, 20 Jun 2012 23:54:20 +0000 (23:54 +0000)]
Remove LiveIntervals::iterator.
Live intervals for regunits and virtual registers are stored separately,
and physreg live intervals are going away.
To visit the live ranges of all virtual registers, use this pattern
instead:
for (unsigned i = 0, e = MRI->getNumVirtRegs(); i != e; ++i) {
unsigned Reg = TargetRegisterInfo::index2VirtReg(i);
if (MRI->reg_nodbg_empty(Reg))
continue;
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158879
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Jakob Stoklund Olesen [Wed, 20 Jun 2012 23:54:18 +0000 (23:54 +0000)]
Remove spurious typedefs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158878
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Meador Inge [Wed, 20 Jun 2012 23:48:01 +0000 (23:48 +0000)]
Removed some left over HTML tags and a '}'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158877
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Jakob Stoklund Olesen [Wed, 20 Jun 2012 23:47:58 +0000 (23:47 +0000)]
Remove the RenderMachineFunction HTML output pass.
I don't think anyone has been using this functionality for a while, and
it is getting in the way of refactoring now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158876
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Jakob Stoklund Olesen [Wed, 20 Jun 2012 23:31:34 +0000 (23:31 +0000)]
Remove the -live-regunits command line option.
Register allocators depend on it being permanently enabled now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158873
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Jakob Stoklund Olesen [Wed, 20 Jun 2012 23:23:59 +0000 (23:23 +0000)]
Fix some more LiveInterval enumerations.
Deterministically enumerate the virtual registers instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158872
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Jakob Stoklund Olesen [Wed, 20 Jun 2012 22:52:29 +0000 (22:52 +0000)]
Remove LiveIntervalUnions from RegAllocBase.
They are living in LiveRegMatrix now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158868
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Jakob Stoklund Olesen [Wed, 20 Jun 2012 22:52:26 +0000 (22:52 +0000)]
Convert RAGreedy to LiveRegMatrix interference checking.
Stop depending on the LiveIntervalUnions in RegAllocBase, they are about
to be removed.
The changes are mostly replacing register alias iterators with regunit
iterators, and querying LiveRegMatrix instrad of RegAllocBase.
InterferenceCache is converted to work with per-regunit
LiveIntervalUnions, and it checks fixed regunit interference separately,
using the fixed live intervals provided by LiveIntervalAnalysis.
The local splitting helper calcGapWeights() is also considering fixed
regunit interference which is kept on the side now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158867
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Jakob Stoklund Olesen [Wed, 20 Jun 2012 22:52:24 +0000 (22:52 +0000)]
Convert RABasic to using LiveRegMatrix interference checking.
Stop using the LiveIntervalUnions provided by RegAllocBase, they will be
removed soon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158866
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Jakob Stoklund Olesen [Wed, 20 Jun 2012 22:52:22 +0000 (22:52 +0000)]
Enable register unit liveness by default.
Soon we won't need to compute live intervals for physical registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158865
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Jakob Stoklund Olesen [Wed, 20 Jun 2012 22:32:05 +0000 (22:32 +0000)]
Teach PBQPBuilder::build() about regunit interference.
Filter out physreg candidates with regunit interferrence.
Also compute regmask interference more efficiently.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158864
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Andrew Trick [Wed, 20 Jun 2012 22:18:33 +0000 (22:18 +0000)]
Restructure PopulateLoopsDFS::insertIntoLoop.
As Nadav pointed out the first implementation was obscure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158862
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Bill Wendling [Wed, 20 Jun 2012 21:54:22 +0000 (21:54 +0000)]
Sphixify the GEP FAQ.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158858
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Jakob Stoklund Olesen [Wed, 20 Jun 2012 21:25:05 +0000 (21:25 +0000)]
Avoid iterating with LiveIntervals::iterator.
That is a DenseMap iterator keyed by pointers, so the iteration order is
nondeterministic.
I would like to replace the DenseMap with an IndexedMap which doesn't
allow iteration.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158856
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Akira Hatanaka [Wed, 20 Jun 2012 21:19:39 +0000 (21:19 +0000)]
Revert r158846.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158855
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Akira Hatanaka [Wed, 20 Jun 2012 20:39:23 +0000 (20:39 +0000)]
In MipsDisassembler.cpp, instead of defining register class tables, use the ones
that are generated by TableGen and are already available in
MipsGenRegisterInfo.inc. Suggested by Jakob Stoklund Olesen.
Also, fix bug in function DecodeAFGR64RegisterClass.
Patch by Vladimir Medic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158846
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Kaelyn Uhrain [Wed, 20 Jun 2012 20:38:36 +0000 (20:38 +0000)]
Remove an "else" that snuck in after a "return" ;)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158844
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Kaelyn Uhrain [Wed, 20 Jun 2012 20:21:33 +0000 (20:21 +0000)]
Check that a file is not a directory before reading it into a MemoryBuffer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158841
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Andrew Trick [Wed, 20 Jun 2012 20:17:20 +0000 (20:17 +0000)]
Add "extern template" declarations now that we use explicit instantiation.
This is supported by gcc and clang, but guarded by a macro for MSVC 2008.
The extern template declaration is not necessary but generally good
form. It can avoid extra instantiations of the template methods
defined inline.
The EXTERN_TEMPLATE_INSTANTIATION macro could probably be generalized to
handle multiple template parameters if someone thinks it's worthwhile.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158840
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Pete Cooper [Wed, 20 Jun 2012 19:35:43 +0000 (19:35 +0000)]
Add users of a MERGE_VALUE node to the worklist to process again when the node is removed. Sorry, no test case. Foudn it by inspection of the code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158839
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Jakob Stoklund Olesen [Wed, 20 Jun 2012 18:00:57 +0000 (18:00 +0000)]
Only update regunit live ranges that have been precomputed.
Regunit live ranges are computed on demand, so when mi-sched calls
handleMove, some regunits may not have live ranges yet.
That makes updating them easier: Just skip the non-existing ranges. They
will be computed correctly from the rescheduled machine code when they
are needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158831
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Nuno Lopes [Wed, 20 Jun 2012 17:30:51 +0000 (17:30 +0000)]
replace usage of EmitGEPOffset() with TargetData::getIndexedOffset() when the GEP offset is known to be constant.
With this change, we avoid relying on the IR Builder to constant fold the operations.
No functionality change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158829
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Jakob Stoklund Olesen [Wed, 20 Jun 2012 16:38:50 +0000 (16:38 +0000)]
Delete dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158827
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Hal Finkel [Wed, 20 Jun 2012 15:43:03 +0000 (15:43 +0000)]
Add support for generating reg+reg (indexed) pre-inc loads on PPC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158823
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Hal Finkel [Wed, 20 Jun 2012 15:42:48 +0000 (15:42 +0000)]
Fix DAGCombine to deal with ext-conversion of pre/post_inc loads.
The test case for this will come with the PPC indexed preinc loads commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158822
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Aaron Ballman [Wed, 20 Jun 2012 14:44:44 +0000 (14:44 +0000)]
Fixing a compiler warning in MSVC 10.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158820
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Bill Wendling [Wed, 20 Jun 2012 12:05:05 +0000 (12:05 +0000)]
Sphinxify the SegmentedStack document.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158819
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Bill Wendling [Wed, 20 Jun 2012 11:56:24 +0000 (11:56 +0000)]
Move coding standards reference from development_process.rst to programming.rst.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158818
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Bill Wendling [Wed, 20 Jun 2012 11:55:22 +0000 (11:55 +0000)]
Unindent list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158817
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Bill Wendling [Wed, 20 Jun 2012 11:53:08 +0000 (11:53 +0000)]
Un-indent list to remove ugly back-slash.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158816
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Bill Wendling [Wed, 20 Jun 2012 11:25:11 +0000 (11:25 +0000)]
Fix the formatting a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158815
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Bill Wendling [Wed, 20 Jun 2012 11:20:07 +0000 (11:20 +0000)]
Sphinxify the developer policy document.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158814
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Bill Wendling [Wed, 20 Jun 2012 10:36:41 +0000 (10:36 +0000)]
Sphinxify the lexicon doc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158813
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Bill Wendling [Wed, 20 Jun 2012 10:17:46 +0000 (10:17 +0000)]
Sphinxify BranchWeightMetadata document.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158810
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Bill Wendling [Wed, 20 Jun 2012 10:08:02 +0000 (10:08 +0000)]
Sphinxify the LTO document.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158808
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Bill Wendling [Wed, 20 Jun 2012 09:50:45 +0000 (09:50 +0000)]
Unindent list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158806
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Bill Wendling [Wed, 20 Jun 2012 09:49:57 +0000 (09:49 +0000)]
Sphinxify the AliasAnalysis document.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158805
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Bill Wendling [Wed, 20 Jun 2012 09:49:06 +0000 (09:49 +0000)]
Unindent list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158804
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Bill Wendling [Wed, 20 Jun 2012 09:48:38 +0000 (09:48 +0000)]
Un-indent the list and remove ugly back-slash.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158803
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Chandler Carruth [Wed, 20 Jun 2012 08:39:33 +0000 (08:39 +0000)]
Remove 'static' from inline functions defined in header files.
There is a pretty staggering amount of this in LLVM's header files, this
is not all of the instances I'm afraid. These include all of the
functions that (in my build) are used by a non-static inline (or
external) function. Specifically, these issues were caught by the new
'-Winternal-linkage-in-inline' warning.
I'll try to just clean up the remainder of the clearly redundant "static
inline" cases on functions (not methods!) defined within headers if
I can do so in a reliable way.
There were even several cases of a missing 'inline' altogether, or my
personal favorite "static bool inline". Go figure. ;]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158800
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Chandler Carruth [Wed, 20 Jun 2012 08:39:30 +0000 (08:39 +0000)]
Fix two rather subtle internal vs. external linker issues.
I'll admit I'm not entirely satisfied with this change, but it seemed
the cleanest option. Other suggestions quite welcome
The issue is that the traits specializations have static methods which
return the typedef'ed PHI_iterator type. In both the IR and MI layers
this is typedef'ed to a custom iterator class defined in an anonymous
namespace giving the types and the functions returning them internal
linkage. However, because the traits specialization is defined in the
'llvm' namespace (where it has to be, specialized template lives there),
and is in turn used in the templated implementation of the SSAUpdater.
This led to the linkage conflict that Clang now warns about.
The simplest solution to me was just to define the PHI_iterator as
a nested class inside the trait specialization. That way it still
doesn't get scoped widely, it can't be accidentally reused somewhere,
etc. This is a little gross just because nested class definitions are
a little gross, but the alternatives seem more ad-hoc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158799
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Chandler Carruth [Wed, 20 Jun 2012 08:39:27 +0000 (08:39 +0000)]
Fix inappropriate use of anonymous namespaces in unittests.
The TEST_F macros actually declare *subclasses* of the test fixtures.
Even if they didn't we don't want them to declare external functions.
The entire unit test, including both the fixture class and the fixture
test cases should be wrapped in the anonymous namespace.
This issue was caught by the new '-Winternal-linkage-in-inline' warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158798
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Craig Topper [Wed, 20 Jun 2012 07:30:23 +0000 (07:30 +0000)]
Add predicate check around some patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158797
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Craig Topper [Wed, 20 Jun 2012 07:01:11 +0000 (07:01 +0000)]
Add predicate check around some patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158795
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Craig Topper [Wed, 20 Jun 2012 05:39:26 +0000 (05:39 +0000)]
Don't insert 128-bit UNDEF into 256-bit vectors. Just keep the 256-bit vector. Original patch by Elena Demikhovsky. Tweaked by me to allow possibility of covering more cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158792
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Andrew Trick [Wed, 20 Jun 2012 05:23:33 +0000 (05:23 +0000)]
A new algorithm for computing LoopInfo. Temporarily disabled.
-stable-loops enables a new algorithm for generating the Loop
forest. It differs from the original algorithm in a few respects:
- Not determined by use-list order.
- Initially guarantees RPO order of block and subloops.
- Linear in the number of CFG edges.
- Nonrecursive.
I didn't want to change the LoopInfo API yet, so the block lists are
still inclusive. This seems strange to me, and it means that building
LoopInfo is not strictly linear, but it may not be a problem in
practice. At least the block lists start out in RPO order now. In the
future we may add an attribute or wrapper analysis that allows other
passes to assume RPO order.
The primary motivation of this work was not to optimize LoopInfo, but
to allow reproducing performance issues by decomposing the compilation
stages. I'm often unable to do this with the current LoopInfo, because
the loop tree order determines Loop pass order. Serializing the IR
tends to invert the order, which reverses the optimization order. This
makes it nearly impossible to debug interdependent loop optimizations
such as LSR.
I also believe this will provide more stable performance results across time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158790
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Bill Wendling [Wed, 20 Jun 2012 04:20:39 +0000 (04:20 +0000)]
Sphinxify the MakefileGuide document.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158789
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Francois Pichet [Wed, 20 Jun 2012 04:08:49 +0000 (04:08 +0000)]
Unbreak the MSVC build: add return to unimplemented functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158788
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Andrew Trick [Wed, 20 Jun 2012 03:42:09 +0000 (03:42 +0000)]
Move the implementation of LoopInfo into LoopInfoImpl.h.
The implementation only needs inclusion from LoopInfo.cpp and
MachineLoopInfo.cpp. Clients of the interface should only include the
interface. This makes the interface readable and speeds up rebuilds
after modifying the implementation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158787
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Bill Wendling [Wed, 20 Jun 2012 02:57:56 +0000 (02:57 +0000)]
Sphinxify the CodingStandard documentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158786
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Nick Kledzik [Wed, 20 Jun 2012 00:28:54 +0000 (00:28 +0000)]
Add permissions(), map_file_pages(), and unmap_file_pages() to llvm::sys::fs and add unit test. Unix is implemented. Windows side needs to be implemented.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158770
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Kaelyn Uhrain [Wed, 20 Jun 2012 00:16:40 +0000 (00:16 +0000)]
Don't assert when given an empty range.
llvm::RawMemoryObject handles empty ranges just fine, and the assert can
be triggered in the wild by e.g. invoking clang with a file that
included an empty pre-compiled header file when clang has been built
with assertions enabled. Without assertions enabled, clang will properly
report that the empty file is not a valid PCH.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158769
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Jakob Stoklund Olesen [Tue, 19 Jun 2012 23:50:18 +0000 (23:50 +0000)]
Add regunit liveness support to LiveIntervals::handleMove().
When LiveIntervals is tracking fixed interference in regunits, make sure
to update those intervals as well. Currently guarded by -live-regunits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158766
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Bill Wendling [Tue, 19 Jun 2012 23:47:58 +0000 (23:47 +0000)]
Alphabetize.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158764
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Chad Rosier [Tue, 19 Jun 2012 23:37:57 +0000 (23:37 +0000)]
Tidy up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158762
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Chad Rosier [Tue, 19 Jun 2012 22:59:12 +0000 (22:59 +0000)]
Add an ensureMaxAlignment() function to MachineFrameInfo (analogous to
ensureAlignment() in MachineFunction). Also, drop setMaxAlignment() in
favor of this new function. This creates a main entry point to setting
MaxAlignment, which will be helpful for future work. No functionality
change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158758
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Lang Hames [Tue, 19 Jun 2012 22:51:23 +0000 (22:51 +0000)]
Add DAG-combines for aggressive FMA formation.
This patch adds DAG combines to form FMAs from pairs of FADD + FMUL or
FSUB + FMUL. The combines are performed when:
(a) Either
AllowExcessFPPrecision option (-enable-excess-fp-precision for llc)
OR
UnsafeFPMath option (-enable-unsafe-fp-math)
are set, and
(b) TargetLoweringInfo::isFMAFasterThanMulAndAdd(VT) is true for the type of
the FADD/FSUB, and
(c) The FMUL only has one user (the FADD/FSUB).
If your target has fast FMA instructions you can make use of these combines by
overriding TargetLoweringInfo::isFMAFasterThanMulAndAdd(VT) to return true for
types supported by your FMA instruction, and adding patterns to match ISD::FMA
to your FMA instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158757
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Jakob Stoklund Olesen [Tue, 19 Jun 2012 22:50:53 +0000 (22:50 +0000)]
80 col.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158755
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Chad Rosier [Tue, 19 Jun 2012 22:28:18 +0000 (22:28 +0000)]
Typo. Patch by Cameron McInally <cameron.mcinally@nyu.edu>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158754
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Bill Wendling [Tue, 19 Jun 2012 22:25:41 +0000 (22:25 +0000)]
Add Projects.rst to the toctree.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158753
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Bill Wendling [Tue, 19 Jun 2012 22:25:17 +0000 (22:25 +0000)]
Use correct capitalization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158752
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Jakob Stoklund Olesen [Tue, 19 Jun 2012 21:46:25 +0000 (21:46 +0000)]
Add a triple.
The test was failing on Linux because of asm syntax differences.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158748
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Jakob Stoklund Olesen [Tue, 19 Jun 2012 21:14:34 +0000 (21:14 +0000)]
Implement PPCInstrInfo::isCoalescableExtInstr().
The PPC::EXTSW instruction preserves the low 32 bits of its input, just
like some of the x86 instructions. Use it to reduce register pressure
when the low 32 bits have multiple uses.
This requires a small change to PeepholeOptimizer since EXTSW takes a
64-bit input register.
This is related to PR5997.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158743
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Jakob Stoklund Olesen [Tue, 19 Jun 2012 21:10:18 +0000 (21:10 +0000)]
Style: Don't reuse variables for multiple purposes.
No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158742
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Marshall Clow [Tue, 19 Jun 2012 18:02:35 +0000 (18:02 +0000)]
New test tool: obj2yaml
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158730
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Bill Wendling [Tue, 19 Jun 2012 17:48:06 +0000 (17:48 +0000)]
Indent coding examples.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158728
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Bill Wendling [Tue, 19 Jun 2012 17:43:57 +0000 (17:43 +0000)]
Remove bad HTML tags. Add missing :.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158726
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Chandler Carruth [Tue, 19 Jun 2012 17:40:35 +0000 (17:40 +0000)]
Fix PR13148, an inf-loop in StringMap.
StringMap suffered from the same bug as DenseMap: when you explicitly
construct it with a small number of buckets, you can arrange for the
tombstone-based growth path to be followed when the number of buckets
was less than '8'. In that case, even with a full map, it would compare
'0' as not less than '0', and refuse to grow the table, leading to
inf-loops trying to find an empty bucket on the next insertion. The fix
is very simple: use '<=' as the comparison. The same fix was applied to
DenseMap as well during its recent refactoring.
Thanks to Alex Bolz for the great report and test case. =]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158725
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Chandler Carruth [Tue, 19 Jun 2012 17:40:29 +0000 (17:40 +0000)]
Remove some superfluous SCOPED_TRACEs from this unit test.
GoogleTest already prints errors with all the information about which
test case contained the error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158724
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Benjamin Kramer [Tue, 19 Jun 2012 17:04:16 +0000 (17:04 +0000)]
Emit TableGen's header comment with C-style comments, so it can be used from C89 code.
Should silence warnings when compiling the X86 disassembler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158723
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Jan Wen Voung [Tue, 19 Jun 2012 16:03:02 +0000 (16:03 +0000)]
Have ARM ELF use correct reloc for "b" instr.
The condition code didn't actually matter for arm "b" instructions,
unlike "bl". It should just use the R_ARM_JUMP24 reloc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158722
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Hal Finkel [Tue, 19 Jun 2012 13:57:17 +0000 (13:57 +0000)]
Mark most PPC register classes to avoid write-after-write.
For processors with the G5-like instruction-grouping scheme, this helps avoid
early group termination due to a write-after-write dependency within the group.
It should also help on pipelined embedded cores.
On POWER7, over the test suite, this gives an average 0.5% speedup. The largest
speedups are:
SingleSource/Benchmarks/Stanford/Quicksort - 33%
MultiSource/Applications/d/make_dparser - 21%
MultiSource/Benchmarks/FreeBench/analyzer/analyzer - 12%
MultiSource/Benchmarks/MiBench/telecomm-FFT/telecomm-fft - 12%
Largest slowdowns:
SingleSource/Benchmarks/Stanford/Bubblesort - 23%
MultiSource/Benchmarks/Prolangs-C++/city/city - 21%
MultiSource/Benchmarks/BitBench/uuencode/uuencode - 16%
MultiSource/Benchmarks/mediabench/mpeg2/mpeg2dec/mpeg2decode - 13%
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158719
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Aaron Ballman [Tue, 19 Jun 2012 13:52:33 +0000 (13:52 +0000)]
Updating the credits after r158717
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158718
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Bill Wendling [Tue, 19 Jun 2012 09:29:05 +0000 (09:29 +0000)]
Put flag names on one line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158715
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Bill Wendling [Tue, 19 Jun 2012 09:27:54 +0000 (09:27 +0000)]
Fix italicized text.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158714
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Bill Wendling [Tue, 19 Jun 2012 09:26:15 +0000 (09:26 +0000)]
Use correct URL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158713
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Bill Wendling [Tue, 19 Jun 2012 09:25:04 +0000 (09:25 +0000)]
Fix numbering of list items.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158712
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Bill Wendling [Tue, 19 Jun 2012 09:23:23 +0000 (09:23 +0000)]
Fix some Sphinx mistakes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158711
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Bill Wendling [Tue, 19 Jun 2012 09:18:34 +0000 (09:18 +0000)]
First attempt at Sphinx. Convert the Projects.html file to Sphinx format.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158709
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Michael J. Spencer [Tue, 19 Jun 2012 05:29:57 +0000 (05:29 +0000)]
[Support/PathV2] Fix out of bounds access in identify_magic when the file is empty.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158704
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Akira Hatanaka [Tue, 19 Jun 2012 03:45:29 +0000 (03:45 +0000)]
Make MipsLongBranch::runOnMachineFunction return true.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158702
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Akira Hatanaka [Tue, 19 Jun 2012 03:39:45 +0000 (03:39 +0000)]
Use MachineBasicBlock::instr_iterator instead of MachineBasicBlock::iterator in
MipsCodeEmitter.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158701
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Hal Finkel [Tue, 19 Jun 2012 02:34:32 +0000 (02:34 +0000)]
Add support for generating reg+reg preinc stores on PPC.
PPC will now generate STWUX and friends.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158698
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Rafael Espindola [Tue, 19 Jun 2012 02:17:35 +0000 (02:17 +0000)]
really add a triple :-(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158696
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Rafael Espindola [Tue, 19 Jun 2012 01:42:34 +0000 (01:42 +0000)]
Add a triple to the test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158695
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Rafael Espindola [Tue, 19 Jun 2012 00:48:28 +0000 (00:48 +0000)]
Move the support for using .init_array from ARM to the generic
TargetLoweringObjectFileELF. Use this to support it on X86. Unlike ARM,
on X86 it is not easy to find out if .init_array should be used or not, so
the decision is made via TargetOptions and defaults to off.
Add a command line option to llc that enables it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158692
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Nuno Lopes [Mon, 18 Jun 2012 23:34:26 +0000 (23:34 +0000)]
revert r158660, since Chris has some issues with this patch (namely using code to reprent information only used by the compiler)
Original commit msg:
add the 'alloc' metadata node to represent the size of offset of buffers pointed to by pointers.
This metadata can be attached to any instruction returning a pointer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158688
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David Blaikie [Mon, 18 Jun 2012 22:31:28 +0000 (22:31 +0000)]
Don't copy a potentially-uninitialized variable.
Based on review discussion of r158638 with Chandler Carruth, Tobias von Koch, and Duncan Sands and a -Wmaybe-uninitialized warning from GCC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158685
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Manman Ren [Mon, 18 Jun 2012 22:23:48 +0000 (22:23 +0000)]
ARM: use NOEN loads and stores if possible when handling struct byval.
This change is to be enabled in clang.
rdar://
9877866
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158684
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Hal Finkel [Mon, 18 Jun 2012 21:08:18 +0000 (21:08 +0000)]
Allow up to 64 functional units per processor itinerary.
This patch changes the type used to hold the FU bitset from unsigned to uint64_t.
This will be needed for some upcoming PowerPC itineraries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158679
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Michael J. Spencer [Mon, 18 Jun 2012 20:21:38 +0000 (20:21 +0000)]
[docs] Port FAQ over to Sphinx.
Patch by Mikael Lyngvig!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158677
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Marshall Clow [Mon, 18 Jun 2012 19:47:16 +0000 (19:47 +0000)]
Added accessors for getting coff_relocation info
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158675
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Jim Grosbach [Mon, 18 Jun 2012 19:45:50 +0000 (19:45 +0000)]
ARM: Define generic HINT instruction.
The NOP, WFE, WFI, SEV and YIELD instructions are all hints w/
a different immediate value in bits [7,0]. Define a generic HINT
instruction and refactor NOP, WFI, WFI, SEV and YIELD to be
assembly aliases of that.
rdar://
11600518
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158674
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Jim Grosbach [Mon, 18 Jun 2012 19:45:46 +0000 (19:45 +0000)]
TableGen: AsmMatcher missing-features list minimization.
When returning a 'cannot match due to missing CPU features' error code,
if there are multiple potential matches with different feature sets,
return the smallest set of missing features from the alternatives as
that's most likely to be the one that's desired.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158673
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Simon Atanasyan [Mon, 18 Jun 2012 19:06:25 +0000 (19:06 +0000)]
Add mipsel-* to the list of targets recognized by configure script.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158670
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Nuno Lopes [Mon, 18 Jun 2012 16:04:04 +0000 (16:04 +0000)]
add the 'alloc' metadata node to represent the size of offset of buffers pointed to by pointers.
This metadata can be attached to any instruction returning a pointer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158660
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Joel Jones [Mon, 18 Jun 2012 14:51:32 +0000 (14:51 +0000)]
This change handles a another case for generating the bic instruction
when a compile time constant is known. This occurs when implicitly zero
extending function arguments from 16 bits to 32 bits. The 8 bit case doesn't
need to be handled, as the 8 bit constants are encoded directly, thereby
not needing a separate load instruction to form the constant into a register.
<rdar://problem/
11481151>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158659
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Chandler Carruth [Mon, 18 Jun 2012 09:15:04 +0000 (09:15 +0000)]
Add a regression test for the bug exposed by r158087, which has been
temporarily reverted.
This test is annoyingly overspecified, but I don't know of another way
to thoroughly test the saving and restoring of the registers. While this
will have to be adjusted even with the issue fixed in order to re-apply
r158087, those adjustments should very clearly indicate that it is still
correct (%esp getting restored prior to pops), whereas without it, this
case can easily slip under the radar.
Still, any suggestions for improvements are very welcome.
All credit to Matt Beaumont-Gay for reducing this out of an insane
Address Sanitizer crash to a reasonably small seg-faulting C program
when built with -mstackrealign. I just reduced it to IR, which was much
simpler. =]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158656
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Chandler Carruth [Mon, 18 Jun 2012 07:03:12 +0000 (07:03 +0000)]
Temporarily revert r158087.
This patch causes problems when both dynamic stack realignment and
dynamic allocas combine in the same function. With this patch, we no
longer build the epilog correctly, and silently restore registers from
the wrong position in the stack.
Thanks to Matt for tracking this down, and getting at least an initial
test case to Chad. I'm going to try to check a variation of that test
case in so we can easily track the fixes required.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158654
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