Michael J. Spencer [Thu, 1 Mar 2012 22:42:52 +0000 (22:42 +0000)]
Minimal changes for LLVM to compile under VS11.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151849
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Akira Hatanaka [Thu, 1 Mar 2012 22:27:29 +0000 (22:27 +0000)]
Changes for migrating to using register mask operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151847
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David Meyer [Thu, 1 Mar 2012 22:19:54 +0000 (22:19 +0000)]
[Object]
Add ObjectFile::getLoadName() for retrieving the soname/installname of a shared object.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151845
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Kevin Enderby [Thu, 1 Mar 2012 22:13:02 +0000 (22:13 +0000)]
Change ARMInstPrinter::printPredicateOperand() so it will not abort if it
runs into the undefined 15 condition code value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151844
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Akira Hatanaka [Thu, 1 Mar 2012 22:12:30 +0000 (22:12 +0000)]
Fix bugs which were introduced when support for base+index floating point loads
and stores was added.
- SelectAddr should return false if Parent is an unaligned f32 load or store.
- Only aligned load and store nodes should be matched to select reg+imm
floating point instructions.
- MIPS does not have support for f64 unaligned load or store instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151843
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Benjamin Kramer [Thu, 1 Mar 2012 22:10:16 +0000 (22:10 +0000)]
BumpPtrAllocator: Make sure threshold cannot be initialized with a value smaller than the slab size.
This replaces r151834 with a simpler fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151842
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Chandler Carruth [Thu, 1 Mar 2012 21:45:51 +0000 (21:45 +0000)]
Fix two warnings in this code that I missed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151839
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Argyrios Kyrtzidis [Thu, 1 Mar 2012 20:36:32 +0000 (20:36 +0000)]
If BumpPtrAllocator is requested to allocate a size that exceeds the slab size,
increase the slab size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151834
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Preston Gurd [Thu, 1 Mar 2012 19:57:20 +0000 (19:57 +0000)]
Trivial change to make the test use Use –mcpu=generic,
so that the test will not fail when run on an Intel Atom
processor, due to the Atom scheduler producing an instruction sequence that is
different from that which is normally expected.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151832
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Argyrios Kyrtzidis [Thu, 1 Mar 2012 19:45:47 +0000 (19:45 +0000)]
Move include/llvm/ADT/SaveAndRestore.h -> include/llvm/Support/SaveAndRestore.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151828
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Chandler Carruth [Thu, 1 Mar 2012 18:58:59 +0000 (18:58 +0000)]
Add the source file with trivial definitions in it that was missing from
r151822, sorry sorry. =[
We need 'git svn nothave' or some such...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151824
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Chandler Carruth [Thu, 1 Mar 2012 18:55:25 +0000 (18:55 +0000)]
Rewrite LLVM's generalized support library for hashing to follow the API
of the proposed standard hashing interfaces (N3333), and to use
a modified and tuned version of the CityHash algorithm.
Some of the highlights of this change:
-- Significantly higher quality hashing algorithm with very well
distributed results, and extremely few collisions. Should be close to
a checksum for up to 64-bit keys. Very little clustering or clumping of
hash codes, to better distribute load on probed hash tables.
-- Built-in support for reserved values.
-- Simplified API that composes cleanly with other C++ idioms and APIs.
-- Better scaling performance as keys grow. This is the fastest
algorithm I've found and measured for moderately sized keys (such as
show up in some of the uniquing and folding use cases)
-- Support for enabling per-execution seeds to prevent table ordering
or other artifacts of hashing algorithms to impact the output of
LLVM. The seeding would make each run different and highlight these
problems during bootstrap.
This implementation was tested extensively using the SMHasher test
suite, and pased with flying colors, doing better than the original
CityHash algorithm even.
I've included a unittest, although it is somewhat minimal at the moment.
I've also added (or refactored into the proper location) type traits
necessary to implement this, and converted users of GeneralHash over.
My only immediate concerns with this implementation is the performance
of hashing small keys. I've already started working to improve this, and
will continue to do so. Currently, the only algorithms faster produce
lower quality results, but it is likely there is a better compromise
than the current one.
Many thanks to Jeffrey Yasskin who did most of the work on the N3333
paper, pair-programmed some of this code, and reviewed much of it. Many
thanks also go to Geoff Pike Pike and Jyrki Alakuijala, the original
authors of CityHash on which this is heavily based, and Austin Appleby
who created MurmurHash and the SMHasher test suite.
Also thanks to Nadav, Tobias, Howard, Jay, Nick, Ahmed, and Duncan for
all of the review comments! If there are further comments or concerns,
please let me know and I'll jump on 'em.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151822
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Benjamin Kramer [Thu, 1 Mar 2012 18:16:35 +0000 (18:16 +0000)]
Move getSubRegIndex out of generated code into MCRegisterInfo, devirtualize it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151821
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Chad Rosier [Thu, 1 Mar 2012 17:41:19 +0000 (17:41 +0000)]
Revert r151816 as Jim has the appropriate fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151818
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Chad Rosier [Thu, 1 Mar 2012 17:31:30 +0000 (17:31 +0000)]
Fix testcases from r151807.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151816
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Jim Grosbach [Thu, 1 Mar 2012 17:30:39 +0000 (17:30 +0000)]
Move TargetRegisterInfo::getSubReg() to MCRegisterInfo.
Allows us to de-virtualize the function and provides access to it in
the instruction printer, which is useful for handling composite
physical registers (e.g., ARM register lists).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151815
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Jim Grosbach [Thu, 1 Mar 2012 17:30:35 +0000 (17:30 +0000)]
Revert "Emit the SubRegTable with the smallest possible integer type."
This reverts commit 151760.
We want to move getSubReg() from TargetRegisterInfo into MCRegisterInfo,
but to do that, the type of the lookup table needs to be the same for
all targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151814
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Jim Grosbach [Thu, 1 Mar 2012 17:30:32 +0000 (17:30 +0000)]
Add missing triple for tests.
Make darwin bots happier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151813
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Jia Liu [Thu, 1 Mar 2012 15:14:19 +0000 (15:14 +0000)]
rplace Alpha with ARM in docs/WritingAnLLVMBackend.html, patch by chenwj
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151811
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James Molloy [Thu, 1 Mar 2012 14:32:18 +0000 (14:32 +0000)]
Fix a codegen fault in which log2 or exp2 could be dead-code eliminated even though they could have sideeffects.
Only allow log2/exp2 to be converted to an intrinsic if they are declared "readnone".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151807
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Benjamin Kramer [Thu, 1 Mar 2012 13:37:55 +0000 (13:37 +0000)]
Make TargetRegisterClasses non-virtual by making the only virtual function a function pointer.
This allows us to make TRC non-polymorphic and value-initializable, eliminating a huge static
initializer and a ton of cruft from the generated code.
Shrinks ARMBaseRegisterInfo.o by ~100k.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151806
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NAKAMURA Takumi [Thu, 1 Mar 2012 03:14:13 +0000 (03:14 +0000)]
llvm/test/CMakeLists.txt: Update dependencies to add llvm-readobj to "check".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151795
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Benjamin Kramer [Thu, 1 Mar 2012 02:16:57 +0000 (02:16 +0000)]
Emit the "is an intrinsic overloaded" table as a bitfield.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151792
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Akira Hatanaka [Thu, 1 Mar 2012 01:53:15 +0000 (01:53 +0000)]
Pass endian information to constructors. Define separate functions to create
objects for big endian and little endian targets.
Patch by Jack Carter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151788
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Jakob Stoklund Olesen [Thu, 1 Mar 2012 01:43:25 +0000 (01:43 +0000)]
Make InlineSpiller bundle-aware.
Simply treat bundles as instructions. Spill code is inserted between
bundles, never inside a bundle. Rewrite all operands in a bundle at
once.
Don't attempt and memory operand folding inside bundles.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151787
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David Meyer [Thu, 1 Mar 2012 01:36:50 +0000 (01:36 +0000)]
[Object]
* Add begin_dynamic_table() / end_dynamic_table() private interface to ELFObjectFile.
* Add begin_libraries_needed() / end_libraries_needed() interface to ObjectFile, for grabbing the list of needed libraries for a shared object or dynamic executable.
* Implement this new interface completely for ELF, leave stubs for COFF and MachO.
* Add 'llvm-readobj' tool for dumping ObjectFile information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151785
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Jakob Stoklund Olesen [Thu, 1 Mar 2012 01:26:01 +0000 (01:26 +0000)]
Move getBundleStart() into MachineInstrBundle.h.
This allows the function to be inlined, and makes it suitable for use in
getInstructionIndex().
Also provide a const version. C++ is great for touch typing practice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151782
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Benjamin Kramer [Thu, 1 Mar 2012 01:18:32 +0000 (01:18 +0000)]
Emit the intrinsic modref info as a lookup table instead of a huge switch.
Shrinks BasicAliasAnalysis.o from 106k to 56k on i386.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151781
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Lang Hames [Thu, 1 Mar 2012 00:41:17 +0000 (00:41 +0000)]
Don't redundantly copy implicit operands when rematerializing.
While we're at it - don't copy vreg implicit operands while rematerializing.
This fixes PR12138.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151779
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Richard Trieu [Thu, 1 Mar 2012 00:29:09 +0000 (00:29 +0000)]
Fix flags for test in MC/MachO/ARM/empty-function-nop.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151778
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Sean Callanan [Thu, 1 Mar 2012 00:15:29 +0000 (00:15 +0000)]
Fixed the 32-bit runtime dynamic loader to allocate
code sections when needed. It just had a conditional
the wrong way around.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151777
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Benjamin Kramer [Wed, 29 Feb 2012 23:46:50 +0000 (23:46 +0000)]
Implement getSubRegIndex as a linear search on the SubRegTable instead of using a big switch.
- The search bounds are constant, in the worst case (ARM target) it will scan over 30 uint16_ts.
- This method isn't very hot, I had problems finding a testcase where it's called more than a dozen of times (no perf impact).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151773
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Kevin Enderby [Wed, 29 Feb 2012 22:58:34 +0000 (22:58 +0000)]
Added annotations for x86 pc relative loads to llvm's 'C' disassembler.
So with darwin's otool(1) an x86_64 hello world .o file will print:
leaq L_.str(%rip), %rax ## literal pool for: Hello world
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151769
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Jim Grosbach [Wed, 29 Feb 2012 22:07:56 +0000 (22:07 +0000)]
Tidy up. 80 columns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151764
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Benjamin Kramer [Wed, 29 Feb 2012 21:57:08 +0000 (21:57 +0000)]
Emit the SubRegTable with the smallest possible integer type.
Doesn't help ARM with its massive register set, but halves the size on x86 and all other targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151760
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Jim Grosbach [Wed, 29 Feb 2012 21:46:32 +0000 (21:46 +0000)]
Tidy up. Spelling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151758
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Jim Grosbach [Wed, 29 Feb 2012 21:43:16 +0000 (21:43 +0000)]
Move the subregister indicies enum into the REGINFO_ENUM section.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151756
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Daniel Dunbar [Wed, 29 Feb 2012 21:02:05 +0000 (21:02 +0000)]
BitstreamWriter: Use SmallVector::append instead of multiple push_back calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151755
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Jim Grosbach [Wed, 29 Feb 2012 20:31:17 +0000 (20:31 +0000)]
Switch TargetRegisterInfo::getSubReg() to use a lookup table.
Instead of nested switch statements, use a lookup table. On ARM, this replaces
a 23k (x86_64 release build) function with a 16k table. Its not unlikely to
be faster, as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151751
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Daniel Dunbar [Wed, 29 Feb 2012 20:31:09 +0000 (20:31 +0000)]
BitstreamWriter: Change primary output buffer to be a SmallVector instead of an
std::vector.
- Good for 1-2% speedup on writing PCH for Cocoa.h.
- Clang side API match to follow shortly, there wasn't an easy way to make this
non-breaking.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151750
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Daniel Dunbar [Wed, 29 Feb 2012 20:31:05 +0000 (20:31 +0000)]
BitstreamWriter: Isolate access to the underlying buffer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151749
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Daniel Dunbar [Wed, 29 Feb 2012 20:31:01 +0000 (20:31 +0000)]
BitcodeWriter: Expose less implementation details -- make BackpatchWord private
and remove getBuffer().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151748
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Daniel Dunbar [Wed, 29 Feb 2012 20:30:56 +0000 (20:30 +0000)]
Bitcode: Don't expose WriteBitcodeToStream to clients.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151747
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Andrew Trick [Wed, 29 Feb 2012 19:44:41 +0000 (19:44 +0000)]
Intel Atom instruction itineraries for mov sign extension and mov zero extension.
Patch by Tyler Nowicki!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151743
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Hal Finkel [Wed, 29 Feb 2012 16:43:11 +0000 (16:43 +0000)]
Add myself to the credits file
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151732
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Benjamin Kramer [Wed, 29 Feb 2012 13:27:00 +0000 (13:27 +0000)]
LegalizeIntegerTypes: Reorder operations in the "big shift by small amount" optimization, making the lives of later passes easier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151722
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Duncan Sands [Wed, 29 Feb 2012 11:12:03 +0000 (11:12 +0000)]
Have GVN also do condition propagation when the right-hand side is not
a constant. This fixes PR1768.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151713
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Nick Lewycky [Wed, 29 Feb 2012 08:26:44 +0000 (08:26 +0000)]
Where the alloca'd space actually lives in ram is undefined, and attempting to
pin it down is undefined behaviour.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151710
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David Meyer [Wed, 29 Feb 2012 02:11:55 +0000 (02:11 +0000)]
[Object] Add symbol attribute flags: ST_ThreadLocal, ST_Common, and ST_Undefined. Implement these completely for ELF.
Rename ST_External to ST_Unknown, and slightly change its semantics. It now only indicates that the symbol's type
is unknown, not that the symbol is undefined. (For that, use ST_Undefined).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151696
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Bill Wendling [Wed, 29 Feb 2012 01:53:13 +0000 (01:53 +0000)]
Testcase for r151691.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151694
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Bill Wendling [Wed, 29 Feb 2012 01:46:50 +0000 (01:46 +0000)]
Restrict this transformation to equality conditions.
This transformation is not correct for not-equal conditions:
(trunc x) != C1 & (and x, CA) != C2 -> (and x, CA|CMAX) != C1|C2
Let
C1 == 0
C2 == 0
CA == 0xFF0000
CMAX == 0xFF
and truncating to i8.
The original truth table:
x | A: trunc x != 0 | B: x & 0xFF0000 != 0 | A & B != 0
--------------------------------------------------------------
0x00000 | 0 | 0 | 0
0x00001 | 1 | 0 | 0
0x10000 | 0 | 1 | 0
0x10001 | 1 | 1 | 1
The truth table of the replacement:
x | x & 0xFF00FF != 0
----------------------------
0x00000 | 0
0x00001 | 1
0x10000 | 1
0x10001 | 1
So they are different.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151691
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Jakob Stoklund Olesen [Wed, 29 Feb 2012 01:40:37 +0000 (01:40 +0000)]
Add an analyzeVirtReg() function.
This function does more or less the same as
MI::readsWritesVirtualRegister(), but it supports bundles as well.
It also determines if any constraint requires reading and writing
operands to use the same register. Most clients want to know.
Use the more modern MO.readsReg() instead of trying to sort out undefs
and partial redefines. Stop supporting the extra full <imp-def> operand
as an alternative to <def,undef> sub-register defines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151690
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Derek Schuff [Wed, 29 Feb 2012 01:09:06 +0000 (01:09 +0000)]
Make MemoryObject accessor members const again
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151687
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Daniel Dunbar [Wed, 29 Feb 2012 00:46:46 +0000 (00:46 +0000)]
Support/PathV2: Fix namespace qualifier in make_absolute(), for Win32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151685
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Jakob Stoklund Olesen [Wed, 29 Feb 2012 00:33:41 +0000 (00:33 +0000)]
Move the operand iterator into MachineInstrBundle.h where it belongs.
Extract a base class and provide four specific sub-classes for iterating
over const/non-const bundles/instructions.
This eliminates the mystery bool constructor argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151684
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Daniel Dunbar [Wed, 29 Feb 2012 00:20:37 +0000 (00:20 +0000)]
Support/PathV2: Fix make_absolute() to match is_absolute() and not expect to
find root names on Unix.
- This fixes make_absolute to not basically always call current_path() on
Unix systems.
- I think the API probably needs cleanup in this area, but I'll let Michael
handle that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151681
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Daniel Dunbar [Wed, 29 Feb 2012 00:20:33 +0000 (00:20 +0000)]
Fix some stray semi-colons.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151680
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Derek Schuff [Wed, 29 Feb 2012 00:07:09 +0000 (00:07 +0000)]
Fix PR12080 by ensuring that MaterializeModule actually reads all the bitcode
in the streaming case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151676
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Michael J. Spencer [Wed, 29 Feb 2012 00:06:24 +0000 (00:06 +0000)]
[PathV2] Fix bug in relative_path.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151675
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Jim Grosbach [Tue, 28 Feb 2012 23:53:30 +0000 (23:53 +0000)]
ARM implement TargetInstrInfo::getNoopForMachoTarget()
Without this hook, functions w/ a completely empty body (including no
epilogue) will cause an MCEmitter assertion failure.
For example,
define internal fastcc void @empty_function() {
unreachable
}
rdar://
10947471
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151673
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Jakob Stoklund Olesen [Tue, 28 Feb 2012 23:52:31 +0000 (23:52 +0000)]
Instructions inside a bundle have the same number as the bundle itself.
SlotIndexes are not assigned to instructions inside bundles, but it is
still valid to look up the index of those instructions.
The reverse getInstructionFromIndex() will return the first instruction
in the bundle.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151672
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David Meyer [Tue, 28 Feb 2012 23:47:53 +0000 (23:47 +0000)]
In the ObjectFile interface, replace isInternal(), isAbsolute(), isGlobal(), and isWeak(), with a bitset of flags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151670
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Rafael Espindola [Tue, 28 Feb 2012 23:32:06 +0000 (23:32 +0000)]
Enable -Wcovered-switch-default again, but add -Werror to the checks to make
sure we don't use it with compilers that don't support it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151665
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Lang Hames [Tue, 28 Feb 2012 22:07:24 +0000 (22:07 +0000)]
Kill off LiveRangeEdit::getNewVRegs and LiveRangeEdit::getUselessVRegs. These
methods are no longer needed now that LinearScan has gone away.
(Contains tweaks trivialSpillEverywhere to enable the removal of getNewVRegs).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151658
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Rafael Espindola [Tue, 28 Feb 2012 21:13:05 +0000 (21:13 +0000)]
On ELF, create relocations to the abbreviation and line sections when producing
debug info for assembly files. We were already doing the right thing when
producing debug info for C/C++.
ELF linkers don't know dwarf, so they depend on these relocations to produce
valid dwarf output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151655
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Chandler Carruth [Tue, 28 Feb 2012 19:26:56 +0000 (19:26 +0000)]
Temporarily revert r151609, which enabled a new warning for LLVM and
Clang builds. The detection logic for compilers that support the warning
isn't working. Rafael is going to investigate it, but didn't want people
to have to wade through build spam until then.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151649
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Jim Grosbach [Tue, 28 Feb 2012 19:11:07 +0000 (19:11 +0000)]
ARM vbit/vbif/vbsl assembly optional size suffix.
These instructions accept but do not require a size suffix.
rdar://
10947225
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151646
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Evan Cheng [Tue, 28 Feb 2012 18:51:51 +0000 (18:51 +0000)]
Re-commit r151623 with fix. Only issue special no-return calls if it's a direct call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151645
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Benjamin Kramer [Tue, 28 Feb 2012 18:37:06 +0000 (18:37 +0000)]
Fix off-by one in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151644
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Roman Divacky [Tue, 28 Feb 2012 18:15:25 +0000 (18:15 +0000)]
Properly MCize the section switch, removing a FIXME.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151639
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Benjamin Kramer [Tue, 28 Feb 2012 17:58:00 +0000 (17:58 +0000)]
LegalizeIntegerTypes: Reenable the large shift with small amount optimization.
To avoid problems with zero shifts when getting the bits that move between words
we use a trick: first shift the by amount-1, then do another shift by one. When
amount is 0 (and size 32) we first shift by 31, then by one, instead of by 32.
Also fix a latent bug that emitted the low and high words in the wrong order
when shifting right.
Fixes PR12113.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151637
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Daniel Dunbar [Tue, 28 Feb 2012 15:36:07 +0000 (15:36 +0000)]
Revert r151623 "Some ARM implementaions, e.g. A-series, does return stack prediction. ...", it is breaking the Clang build during the Compiler-RT part.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151630
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Daniel Dunbar [Tue, 28 Feb 2012 15:35:52 +0000 (15:35 +0000)]
Remove stray semi-colon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151629
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Nadav Rotem [Tue, 28 Feb 2012 14:13:19 +0000 (14:13 +0000)]
Code cleanup following CR by Duncan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151627
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Nadav Rotem [Tue, 28 Feb 2012 11:54:05 +0000 (11:54 +0000)]
Fix a bug in the code that builds SDNodes from vector GEPs.
When the GEP index is a vector of pointers, the code that calculated the size
of the element started from the vector type, and not the contained pointer type.
As a result, instead of looking at the data element pointed by the vector, this
code used the size of the vector. This works for 32bit members (on 32bit
systems), but not for other types. Added code to peel the vector type and
added a test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151626
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Jia Liu [Tue, 28 Feb 2012 07:46:26 +0000 (07:46 +0000)]
remove blanks, and some code format
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151625
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Evan Cheng [Tue, 28 Feb 2012 06:42:03 +0000 (06:42 +0000)]
Some ARM implementaions, e.g. A-series, does return stack prediction. That is,
the processor keeps a return addresses stack (RAS) which stores the address
and the instruction execution state of the instruction after a function-call
type branch instruction.
Calling a "noreturn" function with normal call instructions (e.g. bl) can
corrupt RAS and causes 100% return misprediction so LLVM should use a
unconditional branch instead. i.e.
mov lr, pc
b _foo
The "mov lr, pc" is issued in order to get proper backtrace.
rdar://
8979299
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151623
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Craig Topper [Tue, 28 Feb 2012 06:32:00 +0000 (06:32 +0000)]
Convert generated intrinsic attributes to use an array lookup as Chris suggested in PR11951.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151622
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Pete Cooper [Tue, 28 Feb 2012 05:06:24 +0000 (05:06 +0000)]
Reverted r152620 - DSE: Shorten memset when a later store overwrites the start of it. There were all sorts of buildbot issues
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151621
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Pete Cooper [Tue, 28 Feb 2012 04:27:10 +0000 (04:27 +0000)]
DSE: Shorten memset when a later store overwrites the start of it
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151620
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Bill Wendling [Tue, 28 Feb 2012 04:01:21 +0000 (04:01 +0000)]
Oops...Don't commit the other stuff..
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151618
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Bill Wendling [Tue, 28 Feb 2012 03:47:09 +0000 (03:47 +0000)]
Modify comment to reflect the importance of this code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151617
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Akira Hatanaka [Tue, 28 Feb 2012 03:18:43 +0000 (03:18 +0000)]
Add comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151615
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Akira Hatanaka [Tue, 28 Feb 2012 03:17:38 +0000 (03:17 +0000)]
Do not reserve $gp as a dedicated global base register if the target ABI is not O32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151614
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Charles Davis [Tue, 28 Feb 2012 02:55:41 +0000 (02:55 +0000)]
Strip extraneous information, if present, from the linker version string on
Mac OS X. Patch by Fabian Groffen, with a slight tweak by me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151612
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Akira Hatanaka [Tue, 28 Feb 2012 02:55:02 +0000 (02:55 +0000)]
Add support for floating point base register + offset register addressing mode
load and store instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151611
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Jakob Stoklund Olesen [Tue, 28 Feb 2012 02:08:50 +0000 (02:08 +0000)]
Handle regmasks in MachineCSE.
Don't attempt to extend physreg live ranges across calls.
<rdar://problem/
10942095>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151610
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Rafael Espindola [Tue, 28 Feb 2012 02:01:55 +0000 (02:01 +0000)]
Enable -Wcovered-switch-default as it matches the switch style used in llvm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151609
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Jakob Stoklund Olesen [Tue, 28 Feb 2012 01:42:41 +0000 (01:42 +0000)]
Handle regmasks in the machine code verifier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151607
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Jakob Stoklund Olesen [Tue, 28 Feb 2012 01:15:01 +0000 (01:15 +0000)]
Enable ARM base pointer when calling functions with large arguments.
When an outgoing call takes more than 2k of arguments on the stack, we
don't allocate that call frame in the prolog, but adjust the stack
pointer immediately before the call instead.
This causes problems with the emergency spill slot because PEI can't
track stack pointer adjustments on the second pass, and if the outgoing
arguments are too big, SP can't be used to reach the emergency spill
slot at all.
Work around these problems by ensuring there is a base or frame pointer
that can be used to access the emergency spill slot.
<rdar://problem/
10917166>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151604
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Michael J. Spencer [Tue, 28 Feb 2012 00:40:37 +0000 (00:40 +0000)]
[Object] Add {begin,end}_dynamic_symbols stubs and implementation for ELF.
Add -D option to llvm-nm to dump dynamic symbols.
Patch by David Meyer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151600
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Chad Rosier [Tue, 28 Feb 2012 00:23:01 +0000 (00:23 +0000)]
Fix 80-column violation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151599
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Hal Finkel [Mon, 27 Feb 2012 23:59:33 +0000 (23:59 +0000)]
Allow llvm-stress to optionally generate the other floating-point types (half, ppcf128, mmx, etc.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151596
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Bill Wendling [Mon, 27 Feb 2012 23:48:30 +0000 (23:48 +0000)]
Add back removed code. It still causes LLVM to miscompile. But not having it breaks other things.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151594
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Preston Gurd [Mon, 27 Feb 2012 23:35:03 +0000 (23:35 +0000)]
This patch adds instruction latencies for the SSE instructions
to the instruction scheduler for the Intel Atom.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151590
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Preston Gurd [Mon, 27 Feb 2012 23:31:51 +0000 (23:31 +0000)]
test commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151588
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Eli Friedman [Mon, 27 Feb 2012 23:16:46 +0000 (23:16 +0000)]
Duncan pointed out that if the alignment isn't explicitly specified, it defaults to the ABI alignment. Given that, make this code a bit more aggressive in such cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151584
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Evandro Menezes [Mon, 27 Feb 2012 23:00:52 +0000 (23:00 +0000)]
Delete incorrect reference to inexistent Hexagon architecture manuals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151582
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Bill Wendling [Mon, 27 Feb 2012 22:55:40 +0000 (22:55 +0000)]
Don't use #if 0. Just remove until I can address this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151580
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Bill Wendling [Mon, 27 Feb 2012 22:53:42 +0000 (22:53 +0000)]
XFAIL test until <rdar://problem/
10913281> is fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151578
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