Kostya Serebryany [Mon, 8 Apr 2013 08:43:22 +0000 (08:43 +0000)]
[sanitizer] Fix boundary condition in LargeMmapAllocator::GetBlockBegin. Patch by Sergey Matveev
llvm-svn: 179007
Tim Northover [Mon, 8 Apr 2013 08:42:24 +0000 (08:42 +0000)]
Add ACLE link to ARM documentation sections
llvm-svn: 179006
Tim Northover [Mon, 8 Apr 2013 08:40:41 +0000 (08:40 +0000)]
AArch64: remove barriers from AArch64 atomic operations.
I've managed to convince myself that AArch64's acquire/release
instructions are sufficient to guarantee C++11's required semantics,
even in the sequentially-consistent case.
llvm-svn: 179005
Chandler Carruth [Mon, 8 Apr 2013 08:39:59 +0000 (08:39 +0000)]
Cleanup the formatting of obj2yaml.cpp.
I couldn't touch this file and not clean it up some. These reformattings
brought to you by clang-format, with some minor adjustments by me. More
spring cleaning to follow here.
llvm-svn: 179004
Chandler Carruth [Mon, 8 Apr 2013 08:30:47 +0000 (08:30 +0000)]
Don't define our own global 'endl' variable. While technically it had
internal linkage and so wasn't a patent bug, it doesn't make any sense
here. We can avoid even calling operator<< by just embedding the newline
in the string literals that were already being streamed out. It also
gives the impression of some line-ending agnosticisms which is not
present, and that flushing happens when it doesn't.
If we want to use std::endl, we could do that, but honestly it doesn't
seem remotely worth it. Using '\n' directly is much more clear when
working with raw_ostream.
It also happens to fix builds with old crufty GCC STL implementations
that include std::endl into the global namespace (or headers written to
be compatible with such atrocities).
llvm-svn: 179003
Evgeniy Stepanov [Mon, 8 Apr 2013 08:25:22 +0000 (08:25 +0000)]
[msan] Intercept time().
llvm-svn: 179002
Benjamin Kramer [Mon, 8 Apr 2013 08:07:35 +0000 (08:07 +0000)]
ARM: Remove unused variable.
llvm-svn: 179001
Hal Finkel [Sun, 7 Apr 2013 22:11:09 +0000 (22:11 +0000)]
Cleanup and improve PPC fsel generation
First, we should not cheat: fsel-based lowering of select_cc is a
finite-math-only optimization (the ISA manual, section F.3 of v2.06, makes
this clear, as does a note in our own README).
This also adds fsel-based lowering of EQ and NE condition codes. As it turned
out, fsel generation was covered by a grand total of zero regression test
cases. I've added some test cases to cover the existing behavior (which is now
finite-math only), as well as the new EQ cases.
llvm-svn: 179000
Arnold Schwaighofer [Sun, 7 Apr 2013 20:22:56 +0000 (20:22 +0000)]
TargetLowering: Fix getTypeConversion handling of extended vector types
The code in getTypeConversion attempts to promote the element vector type
before it trys to split or widen the vector.
After it failed finding a legal vector type by promoting it would continue using
the promoted vector element type. Thereby missing legal splitted vector types.
For example the type v32i32 that has a legal split of 4 x v3i32 on x86/sse2
would be transformed to: v32i256 and from there on successively split to:
v16i256, v8i256, v1i256 and then finally ends up as an i64 type.
By resetting the vector element type to the original vector element type that
existed before the promotion the code will attempt to split the vector type to
smaller vector widths of the same type.
llvm-svn: 178999
Rafael Espindola [Sun, 7 Apr 2013 20:01:29 +0000 (20:01 +0000)]
Make MachOObjectFile independent from MachOObject.
llvm-svn: 178998
Rafael Espindola [Sun, 7 Apr 2013 19:42:15 +0000 (19:42 +0000)]
Implement MachOObjectFile::getData directly.
llvm-svn: 178997
Rafael Espindola [Sun, 7 Apr 2013 19:38:15 +0000 (19:38 +0000)]
Implement MachOObjectFile::is64Bit directly.
llvm-svn: 178996
Rafael Espindola [Sun, 7 Apr 2013 19:31:49 +0000 (19:31 +0000)]
Implement MachOObjectFile::getHeaderSize directly.
llvm-svn: 178995
Rafael Espindola [Sun, 7 Apr 2013 19:26:57 +0000 (19:26 +0000)]
Implement MachOObjectFile::getHeader directly.
llvm-svn: 178994
Jakob Stoklund Olesen [Sun, 7 Apr 2013 19:10:57 +0000 (19:10 +0000)]
Implement LowerCall_64 for the SPARC v9 64-bit ABI.
There is still no support for byval arguments (which I don't think are
needed) and varargs.
llvm-svn: 178993
Rafael Espindola [Sun, 7 Apr 2013 19:05:30 +0000 (19:05 +0000)]
Implement MachOObjectFile::getHeaderSize and MachOObjectFile::getData.
These were the last missing forwarding functions. Also consistently use
the forwarding functions instead of using MachOObj directly.
llvm-svn: 178992
Rafael Espindola [Sun, 7 Apr 2013 18:42:06 +0000 (18:42 +0000)]
Remove LoadCommandInfo now that we always have a pointer to the command.
LoadCommandInfo was needed to keep a command and its offset in the file. Now
that we always have a pointer to the command, we don't need the offset.
llvm-svn: 178991
Rafael Espindola [Sun, 7 Apr 2013 18:08:12 +0000 (18:08 +0000)]
Add MachOObjectFile::LoadCommandInfo.
This avoids using MachOObject::getLoadCommandInfo.
llvm-svn: 178990
Rafael Espindola [Sun, 7 Apr 2013 17:41:59 +0000 (17:41 +0000)]
Use getLoadCommandInfo instead of MachOObj->getLoadCommandInfo.
llvm-svn: 178989
Rafael Espindola [Sun, 7 Apr 2013 16:58:48 +0000 (16:58 +0000)]
Construct MachOObject in MachOObjectFile's constructor.
llvm-svn: 178988
Rafael Espindola [Sun, 7 Apr 2013 16:40:00 +0000 (16:40 +0000)]
Remove unused argument.
llvm-svn: 178987
Rafael Espindola [Sun, 7 Apr 2013 16:07:35 +0000 (16:07 +0000)]
Remove MachOObjectFile::getObject.
llvm-svn: 178986
Rafael Espindola [Sun, 7 Apr 2013 15:46:05 +0000 (15:46 +0000)]
Remove two uses of getObject.
llvm-svn: 178985
Rafael Espindola [Sun, 7 Apr 2013 15:35:18 +0000 (15:35 +0000)]
Remove usage of InMemoryStruct in getSymbol.
llvm-svn: 178984
Hal Finkel [Sun, 7 Apr 2013 15:32:40 +0000 (15:32 +0000)]
PPC Altivec load/store intrinsics can be marked IntrRead[Write]ArgMem
llvm-svn: 178983
Hal Finkel [Sun, 7 Apr 2013 15:06:53 +0000 (15:06 +0000)]
PPC rotate instructions don't have unmodeled side effcts
llvm-svn: 178982
Rafael Espindola [Sun, 7 Apr 2013 15:05:12 +0000 (15:05 +0000)]
Remove a use of InMemoryStruct in llvm-readobj.
llvm-svn: 178981
Rafael Espindola [Sun, 7 Apr 2013 14:50:40 +0000 (14:50 +0000)]
Make getObject const. Remove a const_cast.
llvm-svn: 178980
Rafael Espindola [Sun, 7 Apr 2013 14:40:18 +0000 (14:40 +0000)]
Remove last use of InMemoryStruct in llvm-objdump.
llvm-svn: 178979
Hal Finkel [Sun, 7 Apr 2013 14:33:13 +0000 (14:33 +0000)]
Most PPC M[TF]CR instructions do not have side effects
llvm-svn: 178978
Rafael Espindola [Sun, 7 Apr 2013 14:30:21 +0000 (14:30 +0000)]
Remove dead code.
llvm-svn: 178977
Rafael Espindola [Sun, 7 Apr 2013 14:25:39 +0000 (14:25 +0000)]
Remove unused argument.
llvm-svn: 178976
Benjamin Kramer [Sun, 7 Apr 2013 14:10:40 +0000 (14:10 +0000)]
Sema: Don't crash when trying to emit a warning for a duplicate value in an invalid enum.
Fixes PR15693. A null check on a pointer returned from cast<> is a very dubious
construct, do we have a checker for this somewhere?
llvm-svn: 178975
Chandler Carruth [Sun, 7 Apr 2013 11:47:54 +0000 (11:47 +0000)]
Fix PR15674 (and PR15603): a SROA think-o.
The fix for PR14972 in r177055 introduced a real think-o in the *store*
side, likely because I was much more focused on the load side. While we
can arbitrarily widen (or narrow) a loaded value, we can't arbitrarily
widen a value to be stored, as that changes the width of memory access!
Lock down the code path in the store rewriting which would do this to
only handle the intended circumstance.
All of the existing tests continue to pass, and I've added a test from
the PR.
llvm-svn: 178974
Hal Finkel [Sun, 7 Apr 2013 06:30:47 +0000 (06:30 +0000)]
PPC pre-increment load instructions do not have side effects
A few were missed in r178972.
llvm-svn: 178973
Hal Finkel [Sun, 7 Apr 2013 05:46:58 +0000 (05:46 +0000)]
PPC pre-increment load instructions do not have side effects
llvm-svn: 178972
Hal Finkel [Sun, 7 Apr 2013 05:16:57 +0000 (05:16 +0000)]
PPC MCRF instruction does not have side effects
llvm-svn: 178971
Hal Finkel [Sun, 7 Apr 2013 04:56:16 +0000 (04:56 +0000)]
PPC FMR instruction does not have side effects
llvm-svn: 178970
Eric Christopher [Sun, 7 Apr 2013 03:43:09 +0000 (03:43 +0000)]
DW_FORM_sec_offset should be a relocation on platforms that use
a relocation across sections. Do this for DW_AT_stmt list in the
skeleton CU and check the relocations in the debug_info section.
Add a FIXME for multiple CUs.
llvm-svn: 178969
Reid Kleckner [Sun, 7 Apr 2013 01:45:01 +0000 (01:45 +0000)]
[cmake] Avoid rel+asserts warnings when passing -UNDEBUG
MSVC 2012 gives warning D9025, "overriding /D NDEBUG with -UNDEBUG".
Removing the original definition of NDEBUG silences this.
llvm-svn: 178967
Jakob Stoklund Olesen [Sat, 6 Apr 2013 23:57:33 +0000 (23:57 +0000)]
Implement LowerReturn_64 for SPARC v9.
Integer return values are sign or zero extended by the callee, and
structs up to 32 bytes in size can be returned in registers.
The CC_Sparc64 CallingConv definition is shared between
LowerFormalArguments_64 and LowerReturn_64. Function arguments and
return values are passed in the same registers.
The inreg flag is also used for return values. This is required to handle
C functions returning structs containing floats and ints:
struct ifp {
int i;
float f;
};
struct ifp f(void);
LLVM IR:
define inreg { i32, float } @f() {
...
ret { i32, float } %retval
}
The ABI requires that %retval.i is returned in the high bits of %i0
while %retval.f goes in %f1.
Without the inreg return value attribute, %retval.i would go in %i0 and
%retval.f would go in %f3 which is a more efficient way of returning
%multiple values, but it is not ABI compliant for returning C structs.
llvm-svn: 178966
Jakob Stoklund Olesen [Sat, 6 Apr 2013 21:38:57 +0000 (21:38 +0000)]
SPARC v9 stack pointer bias.
64-bit SPARC v9 processes use biased stack and frame pointers, so the
current function's stack frame is located at %sp+BIAS .. %fp+BIAS where
BIAS = 2047.
This makes more local variables directly accessible via [%fp+simm13]
addressing.
llvm-svn: 178965
Jason Molenda [Sat, 6 Apr 2013 20:30:59 +0000 (20:30 +0000)]
Cache the VM page size that we get from task_vm_info so we don't
re-fetch the value.
llvm-svn: 178962
Hal Finkel [Sat, 6 Apr 2013 19:30:30 +0000 (19:30 +0000)]
Implement PPCInstrInfo::FoldImmediate
There are certain PPC instructions into which we can fold a zero immediate
operand. We can detect such cases by looking at the register class required
by the using operand (so long as it is not otherwise constrained).
llvm-svn: 178961
Hal Finkel [Sat, 6 Apr 2013 19:30:28 +0000 (19:30 +0000)]
PPC ISEL is a select and never has side effects
llvm-svn: 178960
Hal Finkel [Sat, 6 Apr 2013 19:30:20 +0000 (19:30 +0000)]
Add a comment to TargetInstrInfo about FoldImmediate
This comment documents the current behavior of the ARM implementation of this
callback, and also the soon-to-be-committed PPC version.
llvm-svn: 178959
Jakob Stoklund Olesen [Sat, 6 Apr 2013 18:32:12 +0000 (18:32 +0000)]
Complete formal arguments for the SPARC v9 64-bit ABI.
All arguments are formally assigned to stack positions and then promoted
to floating point and integer registers. Since there are more floating
point registers than integer registers, this can cause situations where
floating point arguments are assigned to registers after integer
arguments that where assigned to the stack.
Use the inreg flag to indicate 32-bit fragments of structs containing
both float and int members.
The three-way shadowing between stack, integer, and floating point
registers requires custom argument lowering. The good news is that
return values are passed in the exact same way, and we can share the
code.
Still missing:
- Update LowerReturn to handle structs returned in registers.
- LowerCall.
- Variadic functions.
llvm-svn: 178958
Jason Molenda [Sat, 6 Apr 2013 07:28:38 +0000 (07:28 +0000)]
Add optional LOG_TASK logging for MachVMMemory::PageSize when the call succeeds, too.
llvm-svn: 178955
Jason Molenda [Sat, 6 Apr 2013 07:26:59 +0000 (07:26 +0000)]
Add optional LOG_TASK logging for MachVMMemory::PageSize() task_info call failure.
llvm-svn: 178954
Jason Molenda [Sat, 6 Apr 2013 07:16:15 +0000 (07:16 +0000)]
Update MachVMMemory::PageSize to get the page size of a specific process
if we have an updated task_info call available; else fall back to getting
the default host-wide page size.
Update all uses of the vm page size to get it via MachVMMemory::PageSize().
<rdar://problem/
13477763>, <rdar://problem/
13498504>
llvm-svn: 178953
Richard Smith [Sat, 6 Apr 2013 07:07:44 +0000 (07:07 +0000)]
Remove nondeterminism introduced in r178950.
llvm-svn: 178952
Jason Molenda [Sat, 6 Apr 2013 05:25:38 +0000 (05:25 +0000)]
Change the default of 'platform.plugin.darwin-kernel.search-locally-for-kexts'
to 'off' for a week or so while we test the behavior in different environments.
llvm-svn: 178951
Richard Smith [Sat, 6 Apr 2013 05:00:46 +0000 (05:00 +0000)]
When an internal-linkage function or variable is declared within an extern "C"
linkage specification, and is marked as __attribute__((used)), try to also give
it the unmangled name (by emitting an internal linkage alias) if nothing else
within the translation unit would use that name. This allows inline asm in that
translation unit to use the entity via its unmangled name, which people
apparently rely on.
llvm-svn: 178950
Nadav Rotem [Sat, 6 Apr 2013 04:24:12 +0000 (04:24 +0000)]
typo
llvm-svn: 178949
Rafael Espindola [Sat, 6 Apr 2013 03:50:05 +0000 (03:50 +0000)]
Remove last use of InMemoryStruct from MachOObjectFile.cpp.
llvm-svn: 178948
Rafael Espindola [Sat, 6 Apr 2013 03:31:08 +0000 (03:31 +0000)]
Don't use InMemoryStruct<macho::SymtabLoadCommand>.
This also required not using the RegisterStringTable API, which is also a
good thing.
llvm-svn: 178947
Rafael Espindola [Sat, 6 Apr 2013 02:15:44 +0000 (02:15 +0000)]
Don't use InMemoryStruct in getSymbol64TableEntry.
llvm-svn: 178946
Rafael Espindola [Sat, 6 Apr 2013 01:59:05 +0000 (01:59 +0000)]
Don't use InMemoryStruct in getSymbolTableEntry.
llvm-svn: 178945
Jordan Rose [Sat, 6 Apr 2013 01:42:02 +0000 (01:42 +0000)]
[analyzer] When creating a trimmed graph, preserve whether a node is a sink.
This is important because sometimes two nodes are identical, except the
second one is a sink.
This bug has probably been around for a while, but it wouldn't have been an
issue in the old report graph algorithm. I'm ashamed to say I actually looked
at this the first time around and thought it would never be a problem...and
then didn't include an assertion to back that up.
PR15684
llvm-svn: 178944
Rafael Espindola [Sat, 6 Apr 2013 01:24:11 +0000 (01:24 +0000)]
Don't use InMemoryStruct in getRelocation.
llvm-svn: 178943
Argyrios Kyrtzidis [Sat, 6 Apr 2013 01:13:17 +0000 (01:13 +0000)]
[objcmt] Fix a mishandled conversion to objc directory literal.
rdar://
13181413
llvm-svn: 178942
Manman Ren [Sat, 6 Apr 2013 01:02:38 +0000 (01:02 +0000)]
Dwarf: use utostr on CUID to append to SmallString.
We used to do "SmallString += CUID", which is incorrect, since CUID will
be truncated to a char.
rdar://problem/
13573833
llvm-svn: 178941
Michael J. Spencer [Sat, 6 Apr 2013 00:56:40 +0000 (00:56 +0000)]
Add VTune as an optional external dependency and add task tracking.
llvm-svn: 178940
Douglas Gregor [Sat, 6 Apr 2013 00:46:20 +0000 (00:46 +0000)]
<rdar://problem/
13325066> Destroy std::initializer_list temporaries whose lifetime has been extended by reference binding.
llvm-svn: 178939
Anna Zaks [Sat, 6 Apr 2013 00:41:36 +0000 (00:41 +0000)]
[analyzer] Shorten the malloc checker’s leak message
As per Ted’s suggestion!
llvm-svn: 178938
Ted Kremenek [Sat, 6 Apr 2013 00:34:27 +0000 (00:34 +0000)]
Rework how ObjC method inherit deprecated/availability.
New rule:
- Method decls in @implementation are considered "redeclarations"
and inherit deprecated/availability from the @interface.
- All other cases are consider overrides, which do not inherit
deprecated/availability. For example:
(a) @interface redeclares a method in an adopted protocol.
(b) A subclass redeclares a method in a superclass.
(c) A protocol redeclares a method from another protocol it adopts.
The idea is that API authors should have the ability to easily
move availability/deprecated up and down a class/protocol hierarchy.
A redeclaration means that the availability/deprecation is a blank
slate.
Fixes <rdar://problem/
13574571>
llvm-svn: 178937
Jim Ingham [Sat, 6 Apr 2013 00:16:39 +0000 (00:16 +0000)]
Don't call DisableBreakpointSite (i.e. don't try to remove the breakpoint from the target process) if the target
process is no longer alive.
<rdar://problem/
13320991>
llvm-svn: 178936
Anna Zaks [Fri, 5 Apr 2013 23:50:18 +0000 (23:50 +0000)]
[analyzer] Reword error messages for nil keys and values of NSMutableDictionary.
llvm-svn: 178935
Anna Zaks [Fri, 5 Apr 2013 23:50:14 +0000 (23:50 +0000)]
[analyzer] Remove another redundancy from trackNullOrUndef
llvm-svn: 178934
Anna Zaks [Fri, 5 Apr 2013 23:50:11 +0000 (23:50 +0000)]
[analyzer] Fix null tracking for the given test case, by using the proper state and removing redundant code.
llvm-svn: 178933
Michael Gottesman [Fri, 5 Apr 2013 23:46:45 +0000 (23:46 +0000)]
Removed trailing whitespace.
llvm-svn: 178932
Tom Stellard [Fri, 5 Apr 2013 23:31:51 +0000 (23:31 +0000)]
R600/SI: Add support for buffer stores v2
v2:
- Use the ADDR64 bit
Reviewed-by: Christian König <christian.koenig@amd.com>
llvm-svn: 178931
Tom Stellard [Fri, 5 Apr 2013 23:31:44 +0000 (23:31 +0000)]
R600/SI: Use same names for corresponding MUBUF operands and encoding fields
The code emitter knows how to encode operands whose name matches one of
the encoding fields. If there is no match, the code emitter relies on
the order of the operand and field definitions to determine how operands
should be encoding. Matching by order makes it easy to accidentally break
the instruction encodings, so we prefer to match by name.
Reviewed-by: Christian König <christian.koenig@amd.com>
llvm-svn: 178930
Tom Stellard [Fri, 5 Apr 2013 23:31:40 +0000 (23:31 +0000)]
R600: Add RV670 processor
This is an R600 GPU with double support.
Reviewed-by: Christian König <christian.koenig@amd.com>
llvm-svn: 178929
Tom Stellard [Fri, 5 Apr 2013 23:31:35 +0000 (23:31 +0000)]
R600/SI: Add processor types for each SI variant
Reviewed-by: Christian König <christian.koenig@amd.com>
llvm-svn: 178928
Tom Stellard [Fri, 5 Apr 2013 23:31:20 +0000 (23:31 +0000)]
R600/SI: Avoid generating S_MOVs with 64-bit immediates v2
SITargetLowering::analyzeImmediate() was converting the 64-bit values
to 32-bit and then checking if they were an inline immediate. Some
of these conversions caused this check to succeed and produced
S_MOV instructions with 64-bit immediates, which are illegal.
v2:
- Clean up logic
Reviewed-by: Christian König <christian.koenig@amd.com>
llvm-svn: 178927
Hal Finkel [Fri, 5 Apr 2013 23:29:01 +0000 (23:29 +0000)]
Enable early if conversion on PPC
On cores for which we know the misprediction penalty, and we have
the isel instruction, we can profitably perform early if conversion.
This enables us to replace some small branch sequences with selects
and avoid the potential stalls from mispredicting the branches.
Enabling this feature required implementing canInsertSelect and
insertSelect in PPCInstrInfo; isel code in PPCISelLowering was
refactored to use these functions as well.
llvm-svn: 178926
Hal Finkel [Fri, 5 Apr 2013 23:28:58 +0000 (23:28 +0000)]
Correct the PPC A2 misprediction penalty
The manual states that there is a minimum of 13 cycles from when the
mispredicted branch is issued to when the correct branch target is
issued.
llvm-svn: 178925
Greg Clayton [Fri, 5 Apr 2013 23:27:21 +0000 (23:27 +0000)]
Added support "__attribute__((__vector_size__(B)))" and "__attribute__((ext_vector_type(N)))".
Now we can:
1 - see the return value for functions that return types that use the "ext_vector_size"
2 - dump values that use the vector attributes ("expr $ymm0")
3 - modified the DWARF parser to correctly parse GNU vector types from the DWARF by turning them into clang::Type::ExtVector types instead of just standard arrays
llvm-svn: 178924
Richard Trieu [Fri, 5 Apr 2013 23:02:24 +0000 (23:02 +0000)]
When -Woverloaded-virtual is triggered, call HandleFunctionTypeMismatch to add
more information to the notes. This information is already present on other
diagnostic messages that involves overloads.
llvm-svn: 178923
Michael Gottesman [Fri, 5 Apr 2013 22:54:32 +0000 (22:54 +0000)]
An objc_retain can serve as a use for a different pointer.
This is the counterpart to commit r160637, except it performs the action
in the bottomup portion of the data flow analysis.
llvm-svn: 178922
Michael Gottesman [Fri, 5 Apr 2013 22:54:28 +0000 (22:54 +0000)]
Properly model precise lifetime when given an incomplete dataflow sequence.
The normal dataflow sequence in the ARC optimizer consists of the following
states:
Retain -> CanRelease -> Use -> Release
The optimizer before this patch stored the uses that determine the lifetime of
the retainable object pointer when it bottom up hits a retain or when top down
it hits a release. This is correct for an imprecise lifetime scenario since what
we are trying to do is remove retains/releases while making sure that no
``CanRelease'' (which is usually a call) deallocates the given pointer before we
get to the ``Use'' (since that would cause a segfault).
If we are considering the precise lifetime scenario though, this is not
correct. In such a situation, we *DO* care about the previous sequence, but
additionally, we wish to track the uses resulting from the following incomplete
sequences:
Retain -> CanRelease -> Release (TopDown)
Retain <- Use <- Release (BottomUp)
*NOTE* This patch looks large but the most of it consists of updating
test cases. Additionally this fix exposed an additional bug. I removed
the test case that expressed said bug and will recommit it with the fix
in a little bit.
llvm-svn: 178921
Jason Molenda [Fri, 5 Apr 2013 22:40:42 +0000 (22:40 +0000)]
Reorder the Platform plugin settings so that they're now
platform.plugin.darwin-kernel.kext-directories
platform.plugin.darwin-kernel.search-locally-for-kexts
and fix a few FileSpec handling issues for the kext-directories setting.
llvm-svn: 178920
Hal Finkel [Fri, 5 Apr 2013 22:31:56 +0000 (22:31 +0000)]
Reapply r178845 with fix - Fix bug in PEI's virtual-register scavenging
This fixes PEI as previously described, but correctly handles the case where
the instruction defining the virtual register to be scavenged is the first in
the block. Arnold provided me with a bugpoint-reduced test case, but even that
seems too large to use as a regression test. If I'm successful in cleaning it
up then I'll commit that as well.
Original commit message:
This change fixes a bug that I introduced in r178058. After a register is
scavenged using one of the available spills slots the instruction defining the
virtual register needs to be moved to after the spill code. The scavenger has
already processed the defining instruction so that registers killed by that
instruction are available for definition in that same instruction. Unfortunately,
after this, the scavenger needs to iterate through the spill code and then
visit, again, the instruction that defines the now-scavenged register. In order
to avoid confusion, the register scavenger needs the ability to 'back up'
through the spill code so that it can again process the instructions in the
appropriate order. Prior to this fix, once the scavenger reached the
just-moved instruction, it would assert if it killed any registers because,
having already processed the instruction, it believed they were undefined.
Unfortunately, I don't yet have a small test case. Thanks to Pranav Bhandarkar
for diagnosing the problem and testing this fix.
llvm-svn: 178919
Michael J. Spencer [Fri, 5 Apr 2013 22:04:44 +0000 (22:04 +0000)]
Revert "Correctly pass ownership of MemoryBuffers."
llvm-svn: 178918
Bill Wendling [Fri, 5 Apr 2013 21:52:40 +0000 (21:52 +0000)]
Use the target options specified on a function to reset the back-end.
During LTO, the target options on functions within the same Module may
change. This would necessitate resetting some of the back-end. Do this for X86,
because it's a Friday afternoon.
llvm-svn: 178917
Hal Finkel [Fri, 5 Apr 2013 21:30:40 +0000 (21:30 +0000)]
Revert r178845 - Fix bug in PEI's virtual-register scavenging
Reverting because this breaks one of the LTO builders. Original commit message:
This change fixes a bug that I introduced in r178058. After a register is
scavenged using one of the available spills slots the instruction defining the
virtual register needs to be moved to after the spill code. The scavenger has
already processed the defining instruction so that registers killed by that
instruction are available for definition in that same instruction. Unfortunately,
after this, the scavenger needs to iterate through the spill code and then
visit, again, the instruction that defines the now-scavenged register. In order
to avoid confusion, the register scavenger needs the ability to 'back up'
through the spill code so that it can again process the instructions in the
appropriate order. Prior to this fix, once the scavenger reached the
just-moved instruction, it would assert if it killed any registers because,
having already processed the instruction, it believed they were undefined.
Unfortunately, I don't yet have a small test case. Thanks to Pranav Bhandarkar
for diagnosing the problem and testing this fix.
llvm-svn: 178916
Jim Grosbach [Fri, 5 Apr 2013 21:20:12 +0000 (21:20 +0000)]
Tidy up a bit. No functional change.
llvm-svn: 178915
Michael J. Spencer [Fri, 5 Apr 2013 21:08:30 +0000 (21:08 +0000)]
Correctly pass ownership of MemoryBuffers.
llvm-svn: 178914
Michael J. Spencer [Fri, 5 Apr 2013 21:07:44 +0000 (21:07 +0000)]
Fix uninitialized variables. Found by ubsan.
llvm-svn: 178913
Shuxin Yang [Fri, 5 Apr 2013 21:07:08 +0000 (21:07 +0000)]
Disable the optimization about promoting vector-element-access with symbolic index.
This optimization is unstable at this moment; it
1) block us on a very important application
2) PR15200
3) test6 and test7 in test/Transforms/ScalarRepl/dynamic-vector-gep.ll
(the CHECK command compare the output against wrong result)
I personally believe this optimization should not have any impact on the
autovectorized code, as auto-vectorizer is supposed to put gather/scatter
in a "right" way. Although in theory downstream optimizaters might reveal
some gather/scatter optimization opportunities, the chance is quite slim.
For the hand-crafted vectorizing code, in term of redundancy elimination,
load-CSE, copy-propagation and DSE can collectively achieve the same result,
but in much simpler way. On the other hand, these optimizers are able to
improve the code in a incremental way; in contrast, SROA is sort of all-or-none
approach. However, SROA might slighly win in stack size, as it tries to figure
out a stretch of memory tightenly cover the area accessed by the dynamic index.
rdar://
13174884
PR15200
llvm-svn: 178912
Argyrios Kyrtzidis [Fri, 5 Apr 2013 21:04:10 +0000 (21:04 +0000)]
[libclang] Fix cursor visitation to not ignore template arguments in out-of-line member functions.
rdar://
13535645
llvm-svn: 178911
Akira Hatanaka [Fri, 5 Apr 2013 20:54:46 +0000 (20:54 +0000)]
[mips] XFAIL test-interp-vec-loadstore.ll in an attempt to turn builder
llvm-mips-linux green.
llvm-mips-linux runs on a big endian machine. This test passes if I change 'e'
to 'E' in the target data layout string.
llvm-svn: 178910
Douglas Gregor [Fri, 5 Apr 2013 20:53:57 +0000 (20:53 +0000)]
<rdar://problem/
13551789> Fix a race in the LockFileManager.
It's possible for the lock file to disappear and the owning process to
return before we're able to see the generated file. Spin for a little
while to see if it shows up before failing.
llvm-svn: 178909
Douglas Gregor [Fri, 5 Apr 2013 20:48:36 +0000 (20:48 +0000)]
<rdar://problem/
13551789> Fix yet another race in unique_file.
If the directory that will contain the unique file doesn't exist when
we tried to create the file, but another process creates it before we
get a chance to try creating it, we would bail out rather than try to
create the unique file.
llvm-svn: 178908
Ariel J. Bernal [Fri, 5 Apr 2013 20:32:36 +0000 (20:32 +0000)]
Fix UseNullptr fails to replace explict casts surrounded by another implicit
cast
UseNullptr previously matched the implicit cast to const pointer as well as
the explicit cast within that has an implicit cast to nullptr as a descendant.
-Refactored UseNullptr to avoid special-casing certain kinds of cast sequences
-Added test cases.
llvm-svn: 178907
Tanya Lattner [Fri, 5 Apr 2013 20:14:50 +0000 (20:14 +0000)]
Add an error to check that all program scope variables are in the constant address space in OpenCL.
llvm-svn: 178906
Michael J. Spencer [Fri, 5 Apr 2013 20:10:04 +0000 (20:10 +0000)]
[Support][FileSystem] Fix identify_magic for big endian ELF.
llvm-svn: 178905
Rafael Espindola [Fri, 5 Apr 2013 20:00:35 +0000 (20:00 +0000)]
Move yaml2obj to tools too.
llvm-svn: 178904
Fariborz Jahanian [Fri, 5 Apr 2013 19:40:53 +0000 (19:40 +0000)]
doce parsing: adding few more headerdoc tags.
// rdar://
12379114
llvm-svn: 178903