Commit Graph

74330 Commits

Author SHA1 Message Date
Rafael Espindola
b0022d46da Remove unused method. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221759 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-12 02:35:31 +00:00
Rafael Espindola
ccb2a0e99a Make readBytes pure virtual. Every real implementation has it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221758 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-12 02:30:38 +00:00
Rafael Espindola
67a38a848e Remove unused method. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221757 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-12 02:27:40 +00:00
Rafael Espindola
a48b83ebfd Remove the now unused StringRefMemoryObject.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221755 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-12 02:13:27 +00:00
Rafael Espindola
6a222ec893 Pass an ArrayRef to MCDisassembler::getInstruction.
With this patch MCDisassembler::getInstruction takes an ArrayRef<uint8_t>
instead of a MemoryObject.

Even on X86 there is a maximum size an instruction can have. Given
that, it seems way simpler and more efficient to just pass an ArrayRef
to the disassembler instead of a MemoryObject and have it do a virtual
call every time it wants some extra bytes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221751 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-12 02:04:27 +00:00
Nick Kledzik
9abbcb7453 Object, support both mach-o archive t.o.c file names
For historical reasons archives on mach-o have two possible names for the 
file containing the table of contents for the archive: "__.SYMDEF SORTED" 
and "__.SYMDEF".  But the libObject archive reader only supported the former.

This patch fixes llvm::object::Archive to support both names.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221747 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-12 01:37:45 +00:00
Rafael Espindola
dc70865b5b Remove a bit of dead code.
Every "real" object file implements this an ptx doesn't use it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221746 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-12 01:27:22 +00:00
Philip Reames
25703e8fa3 Extend intrinsic name mangling to support arrays, named structs, and function types.
Currently, we have a type parameter mechanism for intrinsics. Rather than having to specify a separate intrinsic for each combination of argument and return types, we can specify a single intrinsic with one or more type parameters. These type parameters are passed explicitly to Intrinsic::getDeclaration or can be specified implicitly in the naming of the intrinsic function in an LL file.

Today, the types are limited to integer, floating point, and pointer types. With a goal of supporting symbolic targets for patchpoints and statepoints, this change adds support for function types.  The change also includes support for first class aggregate types (named structures and arrays) since these appear in function types we've encountered.  

Reviewed by: atrick, ributzka
Differential Revision: http://reviews.llvm.org/D4608



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221742 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-12 00:21:51 +00:00
Chad Rosier
7ad8db4cbb [Reassociate] Canonicalize negative constants out of expressions.
Add support for FDiv, which was regressed by the previous commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221738 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 23:36:42 +00:00
Philip Reames
a03cda02ab Canonicalize an assume(load != null) into !nonnull metadata
We currently have two ways of informing the optimizer that the result of a load is never null: metadata and assume. This change converts the second in to the former. This avoids a need to implement optimizations using both forms.

We should probably extend this basic idea to metadata of other forms; in particular, range metadata. We view is that assumes should be considered a "last resort" for when there isn't a more canonical way to represent something.

Reviewed by: Hal
Differential Revision: http://reviews.llvm.org/D5951



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221737 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 23:33:19 +00:00
Sanjay Patel
4e9c3e9cee Initialize new subtarget feature variable for generating reciprocal estimate instructions.
This was missed in r221706.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221731 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 23:13:15 +00:00
Duncan P. N. Exon Smith
ab75fd0694 libLTO: Assert if LTOCodeGenerator and LTOModule are from different contexts
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221730 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 23:13:10 +00:00
Juergen Ributzka
4f0d671b97 [FastISel][AArch64] Add support for fabs intrinsic.
Lower the llvm.fabs intrinsic to the 'fabs' MI instruction.

This fixes rdar://problem/18946552.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221729 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 23:10:44 +00:00
Duncan P. N. Exon Smith
18a16fd279 libLTO: Allow LTOModule to own a context
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221728 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 23:08:05 +00:00
Duncan P. N. Exon Smith
bce40075a9 libLTO: Allow LTOCodeGenerator to own a context
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221726 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 23:03:29 +00:00
Kostya Serebryany
d54a2bf8e1 [asan] adding ShadowOffset64 for mips64, patch by Kumar Sukhani
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221725 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 23:02:57 +00:00
Chad Rosier
2244d9a5d2 [Reassociate] Canonicalize negative constants out of expressions.
This is a reapplication of r221171, but we only perform the transformation
on expressions which include a multiplication.  We do not transform rem/div
operations as this doesn't appear to be safe in all cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221721 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 22:58:35 +00:00
Kostya Serebryany
abb3335f6d Move asan-coverage into a separate phase.
Summary:
This change moves asan-coverage instrumentation
into a separate Module pass.
The other part of the change in clang introduces a new flag
-fsanitize-coverage=N.
Another small patch will update tests in compiler-rt.

With this patch no functionality change is expected except for the flag name.
The following changes will make the coverage instrumentation work with tsan/msan

Test Plan: Run regression tests, chromium.

Reviewers: nlewycky, samsonov

Reviewed By: nlewycky, samsonov

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6152

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221718 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 22:14:37 +00:00
Duncan P. N. Exon Smith
5bf8ade9d0 Revert "IR: MDNode => Value"
Instead, we're going to separate metadata from the Value hierarchy.  See
PR21532.

This reverts commit r221375.
This reverts commit r221373.
This reverts commit r221359.
This reverts commit r221167.
This reverts commit r221027.
This reverts commit r221024.
This reverts commit r221023.
This reverts commit r220995.
This reverts commit r220994.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221711 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 21:30:22 +00:00
Tom Roeder
15d6f7c3cc Fix build break: remove unused variable in FCFI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221710 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 21:26:33 +00:00
Frederic Riss
6eb7964b7d Totally forget deallocated SDNodes in SDDbgInfo.
What would happen before that commit is that the SDDbgValues associated with
a deallocated SDNode would be marked Invalidated, but SDDbgInfo would keep
a map entry keyed by the SDNode pointer pointing to this list of invalidated
SDDbgNodes. As the memory gets reused, the list might get wrongly associated
with another new SDNode. As the SDDbgValues are cloned when they are transfered,
this can lead to an exponential number of SDDbgValues being produced during
DAGCombine like in http://llvm.org/bugs/show_bug.cgi?id=20893

Note that the previous behavior wasn't really buggy as the invalidation made
sure that the SDDbgValues won't be used. This commit can be considered a
memory optimization and as such is really hard to validate in a unit-test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221709 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 21:21:08 +00:00
Tom Roeder
63dea2c952 Add Forward Control-Flow Integrity.
This commit adds a new pass that can inject checks before indirect calls to
make sure that these calls target known locations. It supports three types of
checks and, at compile time, it can take the name of a custom function to call
when an indirect call check fails. The default failure function ignores the
error and continues.

This pass incidentally moves the function JumpInstrTables::transformType from
private to public and makes it static (with a new argument that specifies the
table type to use); this is so that the CFI code can transform function types
at call sites to determine which jump-instruction table to use for the check at
that site.

Also, this removes support for jumptables in ARM, pending further performance
analysis and discussion.

Review: http://reviews.llvm.org/D4167



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221708 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 21:08:02 +00:00
Sanjay Patel
e7c966f067 Use rcpss/rcpps (X86) to speed up reciprocal calcs (PR21385).
This is a first step for generating SSE rcp instructions for reciprocal
calcs when fast-math allows it. This is very similar to the rsqrt optimization
enabled in D5658 ( http://reviews.llvm.org/rL220570 ).

For now, be conservative and only enable this for AMD btver2 where performance
improves significantly both in terms of latency and throughput.

We may never enable this codegen for Intel Core* chips because the divider circuits
are just too fast. On SandyBridge, divss can be as fast as 10 cycles versus the 21
cycle critical path for the rcp + mul + sub + mul + add estimate.

Follow-on patches may allow configuration of the number of Newton-Raphson refinement
steps, add AVX512 support, and enable the optimization for more chips.

More background here: http://llvm.org/bugs/show_bug.cgi?id=21385

Differential Revision: http://reviews.llvm.org/D6175



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221706 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 20:51:00 +00:00
Bill Schmidt
10161a0cce [PowerPC] Replace foul hackery with real calls to __tls_get_addr
My original support for the general dynamic and local dynamic TLS
models contained some fairly obtuse hacks to generate calls to
__tls_get_addr when lowering a TargetGlobalAddress.  Rather than
generating real calls, special GET_TLS_ADDR nodes were used to wrap
the calls and only reveal them at assembly time.  I attempted to
provide correct parameter and return values by chaining CopyToReg and
CopyFromReg nodes onto the GET_TLS_ADDR nodes, but this was also not
fully correct.  Problems were seen with two back-to-back stores to TLS
variables, where the call sequences ended up overlapping with unhappy
results.  Additionally, since these weren't real calls, the proper
register side effects of a call were not recorded, so clobbered values
were kept live across the calls.

The proper thing to do is to lower these into calls in the first
place.  This is relatively straightforward; see the changes to
PPCTargetLowering::LowerGlobalTLSAddress() in PPCISelLowering.cpp.
The changes here are standard call lowering, except that we need to
track the fact that these calls will require a relocation.  This is
done by adding a machine operand flag of MO_TLSLD or MO_TLSGD to the
TargetGlobalAddress operand that appears earlier in the sequence.

The calls to LowerCallTo() eventually find their way to
LowerCall_64SVR4() or LowerCall_32SVR4(), which call FinishCall(),
which calls PrepareCall().  In PrepareCall(), we detect the calls to
__tls_get_addr and immediately snag the TargetGlobalTLSAddress with
the annotated relocation information.  This becomes an extra operand
on the call following the callee, which is expected for nodes of type
tlscall.  We change the call opcode to CALL_TLS for this case.  Back
in FinishCall(), we change it again to CALL_NOP_TLS for 64-bit only,
since we require a TOC-restore nop following the call for the 64-bit
ABIs.

During selection, patterns in PPCInstrInfo.td and PPCInstr64Bit.td
convert the CALL_TLS nodes into BL_TLS nodes, and convert the
CALL_NOP_TLS nodes into BL8_NOP_TLS nodes.  This replaces the code
removed from PPCAsmPrinter.cpp, as the BL_TLS or BL8_NOP_TLS
nodes can now be emitted normally using their patterns and the
associated printTLSCall print method.

Finally, as a result of these changes, all references to get-tls-addr
in its various guises are no longer used, so they have been removed.

There are existing TLS tests to verify the changes haven't messed
anything up).  I've added one new test that verifies that the problem
with the original code has been fixed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221703 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 20:44:09 +00:00
Rafael Espindola
71c70733b7 Use a 8 bit immediate when possible.
This fixes pr21529.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221700 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 19:46:36 +00:00
Dario Domizioli
949d328bee [X86][ELF] Fix PR20243 - leaf frame pointer bug with TLS access
The ISel lowering for global TLS access in PIC mode was creating a pseudo 
instruction that is later expanded to a call, but the code was not 
setting the hasCalls flag in the MachineFrameInfo alongside the adjustsStack 
flag. This caused some functions to be mistakenly recognized as leaf functions,
and this in turn affected the decision to eliminate the frame pointer.

With the fix, hasCalls is properly set and the leaf frame pointer is correctly
preserved.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221695 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 18:44:49 +00:00
Oliver Stannard
659b1491b8 LLVM incorrectly folds xor into select
LLVM replaces the SelectionDAG pattern (xor (set_cc cc x y) 1) with
(set_cc !cc x y), which is only correct when the xor has type i1.
Instead, we should check that the constant operand to the xor is all
ones.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221693 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 17:36:01 +00:00
Vasileios Kalintiris
328bc2f89e [mips] Add preliminary support for the MIPS II target.
Summary:
This patch enables code generation for the MIPS II target. Pre-Mips32
targets don't have the MUL instruction, so we add the correspondent
pattern that uses the MULT/MFLO combination in order to retrieve the
product.

This is WIP as we don't support code generation for select nodes due to
the lack of conditional-move instructions.

Reviewers: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6150

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221686 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 11:43:55 +00:00
Vasileios Kalintiris
b001cb6423 [mips] Add hardware register name "hwr_ulr" ($29)
The canonical name when printing assembly is still $29. The reason is that
GAS does not accept "$hwr_ulr" at the moment.

This addresses the comments from r221307, which reverted the original
commit r221299.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221685 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 11:22:39 +00:00
Andrea Di Biagio
d6548ad013 [X86] Add missing check for 'isINSERTPSMask' in method 'isShuffleMaskLegal'.
This helps the DAGCombiner to identify more opportunities to fold shuffles.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221684 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 11:20:31 +00:00
Vasileios Kalintiris
d3da72c5b3 Recommit "[mips] Add names and tests for the hardware registers"
The original commit r221299 was reverted in r221307.  I removed the name
"hrw_ulr" ($29) from the original commit because two tests were failing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221681 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 10:31:31 +00:00
David Majnemer
16d8031f94 MC, COFF: Use relocations for function references inside the section
Referencing one symbol from another in the same section does not
generally require a relocation.  However, the MS linker has a feature
called /INCREMENTAL which enables incremental links.  It achieves this
by creating thunks to the actual function and redirecting all
relocations to point to the thunk.

This breaks down with the old scheme if you have a function which
references, say, itself.  On x86_64, we would use %rip relative
addressing to reference the start of the function from out current
position.  This would lead to miscompiles because other references might
reference the thunk instead, breaking function pointer equality.

This fixes PR21520.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221678 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 08:43:57 +00:00
Craig Topper
20d2a260c9 Use uint64_t as the type for the X86 TSFlag format enum. Allows removal of the VEXShift hack that was used to access the higher bits of TSFlags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221673 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 07:32:32 +00:00
Michael Kuperstein
f2fe3b72a9 [X86] Fix pattern match for 32-to-64-bit zext in the presence of AssertSext
This fixes an issue with matching trunc -> assertsext -> zext on x86-64, which would not zero the high 32-bits. See PR20494 for details.
Recommitting - This time, with a hopefully working test.

Differential Revision: http://reviews.llvm.org/D6128

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221672 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 07:07:40 +00:00
Jingyue Wu
7b901e3907 [NVPTX] Remove dead code in NVPTXTargetTransformInfo (NFC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221668 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 05:24:04 +00:00
Rafael Espindola
9272305648 MCAsmParserExtension has a copy of the MCAsmParser. Use it.
Base classes were storing a second copy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221667 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 05:18:41 +00:00
Rafael Espindola
26dd2205ba Add const. NFC.
This adds const to a few methods that already return const references or
creates a const version when they reterun non-const references.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221666 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 05:11:47 +00:00
Quentin Colombet
8201185d61 [X86] Custom lower UINT_TO_FP from v4f32 to v4i32, and for v8f32 to v8i32 if
AVX2 is available.
According to IACA, the new lowering has a throughput of 8 cycles instead of 13
with the previous one.

Althought this lowering kicks in some SPECs benchmarks, the performance
improvement was within the noise.

Correctness testing has been done for the whole range of uint32_t with the
following program:
    uint4 v = (uint4) {0,1,2,3};
    uint32_t i;
    
    //Check correctness over entire range for uint4 -> float4 conversion
    for( i = 0; i < 1U << (32-2); i++ )
    {
        float4 t = test(v);
        float4 c = correct(v);
        
        if( 0xf != _mm_movemask_ps( t == c ))
        {
            printf( "Error @ %vx: %vf vs. %vf\n", v, c, t);
            return -1;
        }
        
        v += 4;
    }
Where "correct" is the old lowering and "test" the new one.

The patch adds a test case for the two custom lowering instruction.
It also modifies the vector cost model, which is why cast.ll and uitofp.ll are
modified.
2009-02-26-MachineLICMBug.ll is also modified because we now hoist 7
instructions instead of 4 (3 more constant loads).

rdar://problem/18153096>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221657 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 02:23:47 +00:00
Nico Weber
bc741c1c42 speling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221652 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 01:13:42 +00:00
Chad Rosier
daeae53efc [yaml2obj] Support AArch64 relocations.
Patch by Daniel Stewart <stewartd@codeaurora.org>!
Phabricator Revision: http://reviews.llvm.org/D6192

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221639 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-10 23:02:03 +00:00
Michael Kuperstein
dee48e7ad4 Reverting r221626 due to a too-strict test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221629 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-10 21:07:41 +00:00
Juergen Ributzka
1b9706b8c6 [AArch64][FastISel] Fix kill flags for integer extends.
In the case we optimize an integer extend away and replace it directly with the
source register, we also have to clear all kill flags at all its uses.
This is necessary, because the orignal IR instruction might be trivially dead,
but we replaced it with a nop at MI level.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221628 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-10 21:05:31 +00:00
Juergen Ributzka
d0995fb982 [SwitchLowering] Fix the "fixPhis" function.
Switch statements may have more than one incoming edge into the same BB if they
all have the same value. When the switch statement is converted these incoming
edges are now coming from multiple BBs. Updating all incoming values to be from
a single BB is incorrect and would generate invalid LLVM IR.

The fix is to only update the first occurrence of an incoming value. Switch
lowering will perform subsequent calls to this helper function for each incoming
edge with a new basic block - updating all edges in the process.

This fixes rdar://problem/18916275.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221627 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-10 21:05:27 +00:00
Michael Kuperstein
1a66dc7468 [X86] Fix pattern match for 32-to-64-bit zext in the presence of AssertSext
This fixes an issue with matching trunc -> assertsext -> zext on x86-64, which would not zero the high 32-bits.
See PR20494 for details.

Differential Revision: http://reviews.llvm.org/D6128

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221626 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-10 20:40:21 +00:00
Rafael Espindola
b3da08deb3 Copy externally_initialized in GlobalVariable::copyAttributesFrom.
Patch by Kevin Frei!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221620 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-10 18:41:59 +00:00
Jingyue Wu
26e0544c0a [NVPTX] Add an NVPTX-specific TargetTransformInfo
Summary:
It currently only implements hasBranchDivergence, and will be extended
in later diffs.

Split from D6188.

Test Plan: make check-all

Reviewers: jholewinski

Reviewed By: jholewinski

Subscribers: llvm-commits, meheff, eliben, jholewinski

Differential Revision: http://reviews.llvm.org/D6195

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221619 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-10 18:38:25 +00:00
Rafael Espindola
d342c4c748 Misc style fixes. NFC.
This fixes a few cases of:

* Wrong variable name style.
* Lines longer than 80 columns.
* Repeated names in comments.
* clang-format of the above.

This make the next patch a lot easier to read.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221615 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-10 18:11:10 +00:00
Vasileios Kalintiris
2d268749a5 Fix extra semicolon warning. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221613 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-10 17:37:53 +00:00
Zoran Jovanovic
c63c935a80 [mips][microMIPS] Fix issue with delay slot filler and microMIPS
Differential Revision: http://reviews.llvm.org/D6193


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221612 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-10 17:27:56 +00:00
Daniel Sanders
62c2faa216 [mips] Fix sret arguments for N32/N64 which were accidentally broken in r221534.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221604 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-10 15:57:53 +00:00
Saleem Abdulrasool
bbfcec17e4 Transforms: address some late comments
We already use the llvm namespace.  Remove the unnecessary prefix.  Use the
StringRef::equals method to compare with C strings rather than instantiating
std::strings.

Addresses late review comments from David Majnemer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221564 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-08 00:00:50 +00:00
Saleem Abdulrasool
8724a6db6b Transforms: sort source files in build
Sort target sources.  NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221563 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-08 00:00:47 +00:00
Chad Rosier
bcdc4769f4 [Reassociate] Better preserve NSW/NUW flags.
Part of PR12985.

Phabricator Revision: http://reviews.llvm.org/D6172

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221555 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 22:12:57 +00:00
Saleem Abdulrasool
6faf6b1833 Transforms: use typedef rather than using aliases
Visual Studio 2012 apparently does not support using alias declarations.  Use
the more traditional typedef approach.  This should let the Windows buildbots
pass.  NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221554 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 22:09:52 +00:00
Saleem Abdulrasool
35c163020a Transform: add SymbolRewriter pass
This introduces the symbol rewriter. This is an IR->IR transformation that is
implemented as a CodeGenPrepare pass. This allows for the transparent
adjustment of the symbols during compilation.

It provides a clean, simple, elegant solution for symbol inter-positioning. This
technique is often used, such as in the various sanitizers and performance
analysis.

The control of this is via a custom YAML syntax map file that indicates source
to destination mapping, so as to avoid having the compiler to know the exact
details of the source to destination transformations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221548 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 21:32:08 +00:00
Michael J. Spencer
049368273b Fix style.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221547 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 21:30:36 +00:00
Matt Arsenault
4d84fe9839 R600: Remove unused define
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221543 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 20:45:00 +00:00
Daniel Sanders
fe2b8b1960 [mips] Promote i32 arguments to i64 for the N32/N64 ABI and fix <64-bit structs...
Summary:
... and after all that refactoring, it's possible to distinguish softfloat
floating point values from integers so this patch no longer breaks softfloat to
do it.

Remove direct handling of i32's in the N32/N64 ABI by promoting them to
i64. This more closely reflects the ABI documentation and also fixes
problems with stack arguments on big-endian targets.

We now rely on signext/zeroext annotations (already generated by clang) and
the Assert[SZ]ext nodes to avoid the introduction of unnecessary sign/zero
extends.

It was not possible to convert three tests to use signext/zeroext. These tests
are bswap.ll, ctlz-v.ll, ctlz-v.ll. It's not possible to put signext on a
vector type so we just accept the sign extends here for now. These tests don't
pass the vectors the same way clang does (clang puts multiple elements in the
same argument, these map 1 element to 1 argument) so we don't need to worry too
much about it.

With this patch, all known N32/N64 bugs should be fixed and we now pass the
first 10,000 tests generated by ABITest.py.

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6117


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221534 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 16:54:21 +00:00
NAKAMURA Takumi
93f761eced [CMake] LLVMSupport: Give system_libs PRIVATE scope when LLVMSupport is built as SHARED. Users of LLVMSupport won't inherit ${system_libs}.
unittests/SupporTests is another user of libpthreads. Apply LLVM_SYSTEM_LIBS for him explicitly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221531 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 16:08:19 +00:00
Daniel Sanders
01657f390d [mips] Removed the remainder of MipsCC. NFC.
Summary:
One of the calls to AllocateStack (the one in LowerCall) doesn't look like
it should be there but it was there before and removing it breaks the
frame size calculation.

Reviewers: vmedic, theraven

Reviewed By: theraven

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6116

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221529 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 15:33:08 +00:00
Daniel Sanders
46c098238e [mips] Remove MipsCC::reservedArgArea() in favour of MipsABIInfo::GetCalleeAllocdArgSizeInBytes(). NFC.
Summary:

Reviewers: theraven, vmedic

Reviewed By: vmedic

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6115


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221528 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 15:03:53 +00:00
NAKAMURA Takumi
490119e467 MipsCCState.h: Use LLVM_DELETED_FUNCTION for msc17.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221527 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 14:56:31 +00:00
Daniel Sanders
6b846945ec [mips] Move MipsCCState to a separate file and clang-formatted it.
Summary: Depends on D6113

Reviewers: theraven, vmedic

Reviewed By: vmedic

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6114

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221525 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 14:24:31 +00:00
Daniel Sanders
7fc57f4cef [mips] Fix unused variable warnings introduced in r221521
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221522 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 12:43:01 +00:00
Daniel Sanders
605a80b218 [mips] Remove remaining use of MipsCC::intArgRegs() in favour of MipsABIInfo::GetByValArgRegs() and MipsABIInfo::GetVarArgRegs()
Summary: Depends on D6112

Reviewers: theraven, vmedic

Reviewed By: vmedic

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6113

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221521 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 12:21:37 +00:00
Daniel Sanders
73bbfc537e [mips] Remove MipsCC::getRegVT(). NFC
Summary: It's no longer used.

Reviewers: vmedic, theraven

Reviewed By: theraven

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6112

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221519 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 12:02:59 +00:00
Daniel Sanders
b4b823941c [mips] Remove MipsCC::analyzeCallOperands in favour of CCState::AnalyzeCallOperands. NFC
Summary:
In addition to the usual f128 workaround, it was also necessary to provide
a means of accessing ArgListEntry::IsFixed.

Reviewers: theraven, vmedic

Reviewed By: vmedic

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6111

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221518 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 11:43:49 +00:00
Daniel Sanders
e40a5317d5 [mips] Move SpecialCallingConv to MipsCCState and use it from tablegen-erated code. NFC
Summary:
In the long run, it should probably become a calling convention in its own
right but for now just move it out of
MipsISelLowering::analyzeCallOperands() so that we can drop this function
in favour of CCState::AnalyzeCallOperands().

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6085


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221517 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 11:10:48 +00:00
Daniel Sanders
37dbb7411c [mips] Removed IsVarArg from MipsISelLowering::analyzeCallOperands(). NFC.
Summary:
CCState objects already carry this information in their isVarArg() method.

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6084


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221516 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 10:45:16 +00:00
David Majnemer
3f2ffe0423 SCCP: overdefined calls cannot become constant
We would attempt to fold away a call instruction which had been marked
overdefined.  However, it's not valid to transition to constant from
overdefined.

This fixes PR21512.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221513 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 08:54:19 +00:00
Justin Hibbits
893f22f882 Add Position-independent Code model Module API.
Summary:
This makes PIC levels a Module flag attribute, which can be queried by the
backend.  The flag is named `PIC Level`, and can have a value of:

  0 - Backend-default
  1 - Small-model (-fpic)
  2 - Large-model (-fPIC)

These match the `-pic-level' command line argument for clang, and the value of the
preprocessor macro `__PIC__'.

Test Plan:
New flags tests specific for the 'PIC Level' module flag.
Tests to be added as part of a future commit for PowerPC, which will use this new API.

Reviewers: rafael, echristo

Reviewed By: rafael, echristo

Subscribers: rafael, llvm-commits

Differential Revision: http://reviews.llvm.org/D5882

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221510 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 04:46:10 +00:00
Ahmed Bougacha
75da31ff15 [AArch64] Keep flags on condition vreg when instantiating a CB branch.
Reversing a CB* instruction used to drop the flags on the condition. On the
included testcase, this lead to a read from an undefined vreg.
Using addOperand keeps the flags, here <undef>.

Differential Revision: http://reviews.llvm.org/D6159


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2014-11-07 02:50:00 +00:00
Rafael Espindola
3f4021398e Use a StringRefMemoryObject. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221503 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-07 01:09:51 +00:00
David Majnemer
bb642c4369 LoopVectorize: Don't assume pointees are sized
A pointer's pointee might not be sized: the pointee could be a function.

Report this as IK_NoInduction when calculating isInductionVariable.

This fixes PR21508.

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2014-11-07 00:31:14 +00:00
David Majnemer
98066413ca InstCombine: Rely on cmpxchg's return code when it's strong
Comparing the result of a cmpxchg instruction can be replaced with an
extractvalue of the cmpxchg success indicator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221498 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 23:23:30 +00:00
Rafael Espindola
7d60fe047a Remove unused variable. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221497 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 23:16:57 +00:00
Simon Atanasyan
848edb1bfa [ELF][yaml2obj] Handle additional MIPS specific st_other field flags
The ELF symbol `st_other` field might contain additional flags besides
visibility ones. This patch implements support for some MIPS specific
flags.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221491 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 22:46:24 +00:00
Rafael Espindola
8e617cceb1 Factor out call to push_back. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221490 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 22:39:16 +00:00
Simon Pilgrim
de3d50643c [X86][SSE] Vector integer/float conversion memory folding (cvttps2dq / cvttpd2dq)
Fixed an issue with the (v)cvttps2dq and (v)cvttpd2dq instructions being incorrectly put in the 2 source operand folding tables instead of the 1 source operand and added the missing SSE/AVX versions.

Also added missing (v)cvtps2dq and (v)cvtpd2dq instructions to the folding tables.

Differential Revision: http://reviews.llvm.org/D6001



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221489 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 22:15:41 +00:00
Ahmed Bougacha
112aabeeeb [X86] Add VFMADDSUB cases for the 213->231 custom inserter.
Also add tests for vfmadd/vfmsub.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221488 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 22:04:15 +00:00
Ahmed Bougacha
f44d4cd925 [X86] Add missing FMA3 VFMADDSUB in the emitter.
Also reuse the fma4 intrinsic test to cover fma3 instructions too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221487 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 21:58:11 +00:00
David Majnemer
c4e8fb94df Object, COFF: Don't consider AuxFunctionDefinition for getSymbolSize
mingw lies about the size of a function's AuxFunctionDefinition.  Ignore
the field and rely on our heuristic to determine the symbol's size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221485 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 21:46:55 +00:00
Rafael Espindola
d8eb4f1912 Base check on the section name, not the variable name.
The variable is private, so the name should not be relied on. Also, the
linker uses the sections, so asan should too when trying to avoid causing
the linker problems.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221480 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 20:01:34 +00:00
Lang Hames
4e2cbd5158 [RegAlloc] Kill off the trivial spiller - nobody is using it any more.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221474 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 19:12:38 +00:00
Michael Liao
14f5cb6f9a Indentation fixes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221472 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 19:05:57 +00:00
Frederic Riss
2dc0735049 Try to appease MSVC buildbots after r221466.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221471 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 19:00:47 +00:00
Frederic Riss
6df2a3be33 Change DIBuilder::createImportedDeclaration from taking a DIScope to a DIDescriptor.
Imported declarations can be DIGlobalVariables which aren't a DIScope. Today
clang (unknowingly I believe) shoehorns these into a DIScope and it all works
just because we never access the fields.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221466 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 17:46:55 +00:00
Colin LeMahieu
d67fc42d22 [Hexagon] Adding basic Hexagon ELF object emitter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221465 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 17:05:51 +00:00
Eli Bendersky
9b644c8749 Clean up NVPTXLowerStructArgs.cpp. NFC
* Remove unnecessary const_casts and C-style casts
* Simplify attribute access code
* Simplify ArrayRef creation
* 80-col and clang-format



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221464 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 17:05:49 +00:00
Daniel Sanders
0d9e067f5a [mips] Removed IsSoftFloat from MipsISelLowering::analyzeCallOperands(). NFC
Summary:
It isn't used anymore.

Depends on D6081

Reviewers: vmedic

Reviewed By: vmedic

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6083

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221463 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 16:48:57 +00:00
Chad Rosier
e15b20eb13 [Reassociate] Don't reassociate when mixing regular and fast-math FP
instructions.  Inlining might cause such cases and it's not valid to
reassociate floating-point instructions without the unsafe algebra flag.

Patch by Mehdi Amini <mehdi_amini@apple.com>!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221462 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 16:46:37 +00:00
Daniel Sanders
20e3be7972 [mips] Removed MipsISelLowering::analyzeFormalArguments() in favour of CCState::AnalyzeFormalArguments()
Summary:
As with returns, we must be able to identify f128 arguments despite them
being lowered away. We do this with a pre-analyze step that builds a
vector and then we use this vector from the tablegen-erated code.

Reviewers: vmedic

Reviewed By: vmedic

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6081

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221461 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 16:36:30 +00:00
Rafael Espindola
eed959015b Compute the correct jump table entries on 32 bit windows.
On 32 bit windows we use label differences and .set does not suppress
rolocations, a combination that was not used before r220256.

This fixes PR21497.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221456 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 14:39:49 +00:00
Andrea Di Biagio
f0f66a254d [X86] When commuting SSE immediate blend, make sure that the new blend mask is a valid imm8.
Example:
define <4 x i32> @test(<4 x i32> %a, <4 x i32> %b) {
  %shuffle = shufflevector <4 x i32> %a, <4 x i32> %b, <4 x i32> <i32 4, i32 5, i32 6, i32 3>
  ret <4 x i32> %shuffle
}

Before llc (-mattr=+sse4.1), produced the following assembly instruction:
  pblendw $4294967103, %xmm1, %xmm0

After
  pblendw $63, %xmm1, %xmm0


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221455 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 14:36:45 +00:00
Aaron Ballman
22cfcb2469 Fixing some -Wcast-qual warnings; NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221454 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 14:32:30 +00:00
Toma Tabacu
7f22a20351 [mips] Tolerate the use of the %z inline asm operand modifier with non-immediates.
Summary:
Currently, we give an error if %z is used with non-immediates, instead of continuing as if the %z isn't there.

For example, you use the %z operand modifier along with the "Jr" constraints ("r" makes the operand a register, and "J" makes it an immediate, but only if its value is 0). 
In this case, you want the compiler to print "$0" if the inline asm input operand turns out to be an immediate zero and you want it to print the register containing the operand, if it's not.

We give an error in the latter case, and we shouldn't (GCC also doesn't).

Reviewers: dsanders

Reviewed By: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6023

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221453 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 14:25:42 +00:00
Sasa Stankovic
2b8f96996b [mips] Add the following MIPS options that control gp-relative addressing of
small data items: -mgpopt, -mlocal-sdata, -mextern-sdata. Implement gp-relative
addressing for constants.

Differential Revision: http://reviews.llvm.org/D4903


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221450 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 13:20:12 +00:00
Toma Tabacu
ea60f51d87 [mips] Improve error/warning messages and testing for the .cpload assembler directive.
Summary:
Improved warning message when using .cpload inside a reorder section and added an error message for using .cpload with Mips16 enabled.
Modified the tests to fit with the changes mentioned above, added a test-case for the N32 ABI in cpload.s and did some reformatting to make the tests easier to read.

Reviewers: dsanders

Reviewed By: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5465

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221447 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 10:02:45 +00:00
Daniel Sanders
10f28ec3ef [JIT] Fix more missing endian conversions (opcodes for AArch64, ARM, and Mips stub functions, and ARM target in general)
Summary:
Fixed all of the missing endian conversions that Lang Hames and I identified in
RuntimeDyldMachOARM.h.

Fixed the opcode emission in RuntimeDyldImpl::createStubFunction() for AArch64,
ARM, Mips when the host endian doesn't match the target endian.
PowerPC will need changing if it's opcodes are affected by endianness but I've
left this for now since I'm unsure if this is the case and it's the only path
that specifies the target endian.

This patch fixes MachO_ARM_PIC_relocations.s on a big-endian Mips host. This
is the last of the known issues on this host.

Reviewers: lhames

Reviewed By: lhames

Subscribers: aemerson, llvm-commits

Differential Revision: http://reviews.llvm.org/D6130

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221446 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 09:53:05 +00:00
David Majnemer
42b17f97cf Object, COFF: Infer symbol sizes from adjacent symbols
Use the position of the subsequent symbol in the object file to infer
the size of it's predecessor.  I hope to eventually remove whatever COFF
specific details from this little algorithm so that we can unify this
logic with what Mach-O does.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221444 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 08:10:41 +00:00
David Majnemer
a67e1693fc X86, MC: Tidy up some whitespace in GetRelocType
No functionality change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221443 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 08:10:37 +00:00
Justin Bogner
03e3dfd20a GCOV: Make sure that function idents in the .gcda and .gcno match
When generating gcov compatible profiling, we sometimes skip emitting
data for functions for one reason or another. However, this was
emitting different function IDs in the .gcno and .gcda files, because
the .gcno case was using the loop index before skipping functions and
the .gcda the array index after. This resulted in completely invalid
gcov data.

This fixes the problem by making the .gcno loop track the ID
separately from the loop index.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221441 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 06:55:02 +00:00
Rafael Espindola
58de7099c7 Add three other sections when L symbols are allowed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221436 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 05:01:21 +00:00
Rafael Espindola
e1f22e397d Allow L symbols in no_dead_strip sections.
If a section cannot be dead stripped, it is safe to use L symbols, since
the linker will keep all of it in the end.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221431 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 02:42:03 +00:00
Quentin Colombet
d465eced34 [X86] Lower VSELECT into SHRUNKBLEND when we shrink the bits used into the
condition to match a blend.
This prevents optimizations that work on VSELECT to perform invalid
transformations. Indeed, the optimized condition does not match the vector
boolean content that is expected and bad things may happen.

This patch yields the exact same code on the whole test-suite + specs (-O3 and
-O3 -march=core-avx2), it improves one test case (vector-blend.ll) and fixes a
bug reduced in vselect-avx.ll.

<rdar://problem/18819506>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221429 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 02:25:03 +00:00
Matt Arsenault
4ebcbd0af7 Remove unnecessary .c_str() when implicitly converting to Twine
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221422 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-06 01:13:27 +00:00
Petar Jovanovic
5940390ece [mips64] Fix MIPS64 exception personality encoding
Remove dynamic relocations of __gxx_personality_v0 from the .eh_frame.
The MIPS64 follow-up of the MIPS32 fix (rL209907).

Patch by Vladimir Stefanovic.

Differential Revision: http://reviews.llvm.org/D6141


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221408 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 22:42:31 +00:00
Simon Pilgrim
3f1d66fe93 [X86][SSE] Vector integer to float conversion memory folding
Added missing memory folding for the (V)CVTDQ2PS instructions - we can safely fold these (but not the (V)CVTDQ2PD versions which have a register/memory size discrepancy in the source operand). I've added a test case demonstrating that stack folding now works.

Differential Revision: http://reviews.llvm.org/D5981



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221407 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 22:28:25 +00:00
Michael Ilseman
9f59bc4a0d Fix heap-use-after-free bug in expandSDiv when the operands are
constants, as discovered by ASAN.

Patch by Mehdi Amini!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221401 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 21:28:24 +00:00
Steven Wu
36c4749c19 Remove obsolete ARM intrinsics vclz and vcnt
Both of the intrinsics get autoupgraded to target independent
intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221396 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 21:02:55 +00:00
Matt Arsenault
ecb144e2d1 R600/SI: Fix omod display for VOP3b
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221387 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 19:35:00 +00:00
Derek Schuff
07ffcb1007 [x86 fast-isel] Materialize allocas with the correct-sized lea for ILP32
Summary:
X86FastISel::fastMaterializeAlloca was incorrectly conditioning its
opcode selection on subtarget bitness rather than pointer size.

Differential Revision: http://reviews.llvm.org/D6136

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221386 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 19:27:21 +00:00
Matt Arsenault
d8586375b8 R600/SI: Move all rsrc building functions to SIISelLowering
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221383 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 19:01:19 +00:00
Matt Arsenault
12bd9f11c0 R600/SI: Remove SI_ADDR64_RSRC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221382 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 19:01:17 +00:00
Justin Holewinski
e459c0bf65 [NVPTX] Add NVPTXLowerStructArgs pass
This works around the limitation that PTX does not allow .param space
loads/stores with arbitrary pointers.

If a function has a by-val struct ptr arg, say foo(%struct.x *byval %d), then
add the following instructions to the first basic block :

%temp = alloca %struct.x, align 8
%tt1 = bitcast %struct.x * %d to i8 *
%tt2 = llvm.nvvm.cvt.gen.to.param %tt2
%tempd = bitcast i8 addrspace(101) * to %struct.x addrspace(101) *
%tv = load %struct.x addrspace(101) * %tempd
store %struct.x %tv, %struct.x * %temp, align 8

The above code allocates some space in the stack and copies the incoming
struct from param space to local space. Then replace all occurences of %d
by %temp.

Fixes PR21465.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221377 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 18:19:30 +00:00
Duncan P. N. Exon Smith
bad06b13ba IR: MDNode => Value: NamedMDNode::getOperator()
Change `NamedMDNode::getOperator()` from returning `MDNode *` to
returning `Value *`.  To reduce boilerplate at some call sites, add a
`getOperatorAsMDNode()` for named metadata that's expected to only
return `MDNode` -- for now, that's everything, but debug node named
metadata (such as llvm.dbg.cu and llvm.dbg.sp) will soon change.  This
is part of PR21433.

Note that there's a follow-up patch to clang for the API change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221375 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 18:16:03 +00:00
Sanjay Patel
4a6537c0a9 remove extra breaks; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221374 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 18:00:07 +00:00
Duncan P. N. Exon Smith
ee6433511d IR: MDNode => Value: AsmWriter SlotTracker API
Change `SlotTracker::CreateMetadataSlot()` and
`SlotTracker::getMetadataSlot()` to use `Value` instead of `MDNode`.
Part of PR21433.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221373 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 17:56:28 +00:00
Tilmann Scheller
463e275e3e [ARM] Remove more dead code.
Dead code identified by the Clang static analyzer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221372 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 17:45:04 +00:00
Zoran Jovanovic
cd2d40cef6 ps][microMIPS] Implement CodeGen support for ANDI16 instruction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221371 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 17:43:00 +00:00
Colin LeMahieu
455618c920 [Hexagon] [NFC] Alphabetizing cmake files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221370 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 17:38:48 +00:00
Zoran Jovanovic
a1925e6d5d ps][microMIPS] Implement CodeGen support for SLL16 and SRL16 instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221369 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 17:38:31 +00:00
Tilmann Scheller
4929a03d42 [ARM] Remove another redundant assignment.
Found by the Clang static analyzer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221368 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 17:34:04 +00:00
Zoran Jovanovic
8dad1e1e8e [mips][microMIPS] Implement ANDI16 instruction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221367 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 17:31:00 +00:00
Tilmann Scheller
8e4d0d84a0 [ARM] Remove redundant assignment.
Found by the Clang static analyzer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221366 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 17:28:19 +00:00
Peter Collingbourne
7cc4447ccf [dfsan] Abort at runtime on indirect calls to uninstrumented vararg functions.
We currently have no infrastructure to support these correctly.

This is accomplished by generating a call to a runtime library function that
aborts at runtime in place of the regular wrapper for such functions. Direct
calls are rewritten in the usual way during traversal of the caller's IR.

We also remove the "split-stack" attribute from such wrappers, as the code
generator cannot currently handle split-stack vararg functions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221360 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 17:21:00 +00:00
Duncan P. N. Exon Smith
72ced73d45 IR: MDNode => Value: NamedMDNode::addOperand()
Change `NamedMDNode::addOperand()` to take a `Value *` instead of an
`MDNode *`.  This is part of PR21433.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221359 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 17:16:09 +00:00
Tilmann Scheller
33ccf8e66c [ARM] Remove dead code identified by the Clang static analyzer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221358 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 17:10:43 +00:00
Zoran Jovanovic
0f0a134d9d [mips][microMIPS] Mark symbols as microMIPS if necessary
Differential Revision: http://reviews.llvm.org/D6039


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221355 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 16:35:20 +00:00
Zoran Jovanovic
e9b9ca452f Reverted revisions 221351, 221352 and 221353.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221354 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 16:19:59 +00:00
Zoran Jovanovic
e7ec22de06 [mips][microMIPS] Implement CodeGen support for ANDI16 instruction
Differential Revision: http://reviews.llvm.org/D5797


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221353 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 15:54:05 +00:00
Zoran Jovanovic
8cfd4909f0 [mips][microMIPS] Implement CodeGen support for SLL16 and SRL16 instructions
Differential Revision: http://reviews.llvm.org/D5933


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221352 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 15:46:53 +00:00
Zoran Jovanovic
7c63a6331f [mips][microMIPS] Implement ANDI16 instruction
Differential Revision: http://reviews.llvm.org/D5163


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221351 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 15:39:41 +00:00
Tom Stellard
8eaed0f63d R600/SI: Change all instruction assembly names to lowercase.
This matches the format produced by the AMD proprietary driver.

//==================================================================//
// Shell script for converting .ll test cases: (Pass the .ll files
   you want to convert to this script as arguments).
//==================================================================//

; This was necessary on my system so that A-Z in sed would match only
; upper case.  I'm not sure why.
export LC_ALL='C'

TEST_FILES="$*"

MATCHES=`grep -v Patterns SIInstructions.td | grep -o '"[A-Z0-9_]\+["e]' | grep -o '[A-Z0-9_]\+' | sort -r`

for f in $TEST_FILES; do
  # Check that there are SI tests:
  grep -q -e 'verde' -e 'bonaire' -e 'SI' -e 'tahiti' $f
  if [ $? -eq 0 ]; then
    for match in $MATCHES; do
      sed -i -e "s/\([ :]$match\)/\L\1/" $f
    done

    # Try to get check lines with partial instruction names
    sed -i 's/\(;[ ]*SI[A-Z\\-]*: \)\([A-Z_0-9]\+\)/\1\L\2/' $f
  fi
done

sed -i -e 's/bb0_1/BB0_1/g' ../../../test/CodeGen/R600/infinite-loop.ll
sed -i -e 's/SI-NOT: bfe/SI-NOT: {{[^@]}}bfe/g'../../../test/CodeGen/R600/llvm.AMDGPU.bfe.*32.ll ../../../test/CodeGen/R600/sext-in-reg.ll
sed -i -e 's/exp_IEEE/EXP_IEEE/g' ../../../test/CodeGen/R600/llvm.exp2.ll
sed -i -e 's/numVgprs/NumVgprs/g' ../../../test/CodeGen/R600/register-count-comments.ll
sed -i 's/\(; CHECK[-NOT]*: \)\([A-Z_0-9]\+\)/\1\L\2/' ../../../test/CodeGen/R600/select64.ll ../../../test/CodeGen/R600/sgpr-copy.ll

//==================================================================//
// Shell script for converting .td files (run this last)
//==================================================================//

export LC_ALL='C'
sed -i -e '/Patterns/!s/\("[A-Z0-9_]\+[ "e]\)/\L\1/g' SIInstructions.td
sed -i -e 's/"EXP/"exp/g' SIInstrInfo.td

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221350 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 14:50:53 +00:00
Andrea Di Biagio
042bee88f3 [X86] Teach method 'isVectorClearMaskLegal' how to check for legal blend masks.
This patch improves the folding of vector AND nodes into blend operations for
targets that feature SSE4.1. A vector AND node where one of the operands is
a constant build_vector with elements that are either zero or all-ones can be
converted into a blend.

This allows for example to simplify the following code:

define <4 x i32> @test(<4 x i32> %A, <4 x i32> %B) {
  %1 = and <4 x i32> %A, <i32 0, i32 0, i32 0, i32 -1>
  %2 = and <4 x i32> %B, <i32 -1, i32 -1, i32 -1, i32 0>
  %3 = or <4 x i32> %1, %2
  ret <4 x i32> %3
}

Before this patch llc (-mcpu=corei7) generated:
        andps  LCPI1_0(%rip), %xmm0, %xmm0
        andps  LCPI1_1(%rip), %xmm1, %xmm1
        orps   %xmm1, %xmm0, %xmm0
        retq

With this patch we generate a single 'vpblendw'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221343 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 13:04:14 +00:00
Oliver Stannard
382f7d717c [ARM] Honor FeatureD16 in the assembler and disassembler
Some ARM FPUs only have 16 double-precision registers, rather than the
normal 32. LLVM represents this with the D16 target feature. This is
currently used by CodeGen to avoid using high registers when they are
not available, but the assembler and disassembler do not.

I fix this in the assmebler and disassembler rather than the
InstrInfo.td files, as the latter would require a large number of
changes everywhere one of the floating-point instructions is referenced
in the backend. This solution is similar to the one used for
co-processor numbers and MSR masks.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221341 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 12:06:39 +00:00
Craig Topper
04a45948a0 Improve logic that decides if its profitable to commute when some of the virtual registers involved have uses/defs chains connecting them to physical register. Fix up the tests that this change improves.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221336 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 06:43:02 +00:00
David Majnemer
4787059b2f llvm-readobj: Add support for dumping the DOS header in PE files
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221333 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 06:24:35 +00:00
Jiangning Liu
07e1080b89 Revert 220932.
Commit 220932 caused crash when building clang-tblgen on aarch64 debian target,
so it's blocking all daily tests.

The std::call_once implementation in pthread has bug for aarch64 debian.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221331 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 04:44:31 +00:00
Duncan P. N. Exon Smith
84dc1b5c92 IR: Metadata: Remove unnecessary dyn_cast
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221328 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 01:55:06 +00:00
David Majnemer
49c14f54b2 InstSimplify: Exact shifts of X by Y are X if X has the lsb set
Exact shifts may not shift out any non-zero bits. Use computeKnownBits
to determine when this occurs and just return the left hand side.

This fixes PR21477.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221325 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 00:59:59 +00:00
Tim Northover
cafa378fe0 ARM: try to add extra CS-register whenever stack alignment >= 8.
We currently try to push an even number of registers to preserve 8-byte
alignment during a function's prologue, but only when the stack alignment is
prcisely 8. Many of the reasons for doing it apply also when that alignment > 8
(the extra store is often free, and can save another stack adjustment, though
less frequently for 16-byte stack alignment).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221321 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 00:27:20 +00:00
Tim Northover
1f771b80c0 ARM/Dwarf: correctly align stack before callee-saved VPRs
We were making an attempt to do this by adding an extra callee-saved GPR (so
that there was an even number in the list), but when that failed we went ahead
and pushed anyway.

This had a couple of potential issues:
  + The .cfi directives we emit misplaced dN because they were based on
    PrologEpilogInserter's calculation.
  + Unaligned stores can be less efficient.
  + Unaligned stores can actually fault (likely only an issue in niche cases,
    but possible).

This adds a final explicit stack adjustment if all other options fail, so that
the actual locations of the registers match up with where they should be.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221320 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-05 00:27:13 +00:00
David Majnemer
3839fd16a1 Analysis: Make isSafeToSpeculativelyExecute fire less for divides
Divides and remainder operations do not behave like other operations
when they are given poison: they turn into undefined behavior.

It's really hard to know if the operands going into a div are or are not
poison.  Because of this, we should only choose to speculate if there
are constant operands which we can easily reason about.

This fixes PR21412.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221318 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 23:49:08 +00:00
Reid Kleckner
11e6e005b7 Revert "[Reassociate] Canonicalize negative constants out of expressions."
This reverts commit r221171.

It performs this invalid transformation:
-  %div.i = urem i64 -1, %add
-  %sub.i = sub i64 -2, %div.i
+  %div.i = urem i64 1, %add
+  %sub.i1 = add i64 %div.i, -2

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221317 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 23:42:45 +00:00
Simon Pilgrim
4ad0654bb4 [X86][SSE] Enable commutation for SSE immediate blend instructions
Patch to allow (v)blendps, (v)blendpd, (v)pblendw and vpblendd instructions to be commuted - swaps the src registers and inverts the blend mask.

This is primarily to improve memory folding (see new tests), but it also improves the quality of shuffles (see modified tests).

Differential Revision: http://reviews.llvm.org/D6015



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221313 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 23:25:08 +00:00
Mark Heffernan
ffb62b7e77 Revert earlier change removing setPreservesCFG from instcombine (r221223) and
change LoopSimplifyPass to be !isCFGOnly.  The motivation for the earlier patch
(r221223) was that LoopSimplify is not preserved by instcombine though
setPreservesCFG indicates that it is.  This change fixes the issue
by making setPreservesCFG no longer imply LoopSimplifyPass, and is therefore less
invasive.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221311 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 23:02:09 +00:00
Juergen Ributzka
6612e3aeda [AArch64] Use the correct register class for ORR.
While fixing up the register classes in the machine combiner in a previous
commit I missed one.

This fixes the last one and adds a test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221308 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 22:20:07 +00:00
Rafael Espindola
2ca0328c3b Revert "[mips] Add names and tests for the hardware registers"
This reverts commit r221299.

The tests

    LLVM :: MC/Disassembler/Mips/mips32.txt
    LLVM :: MC/Disassembler/Mips/mips32_le.txt

were failing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221307 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 22:15:05 +00:00
David Blaikie
f49ead7098 Provide gmlt-like inline scope information in the skeleton CU to facilitate symbolication without needing the .dwo files
Clang -gsplit-dwarf self-host -O0, binary increases by 0.0005%, -O2,
binary increases by 25%.

A large binary inside Google, split-dwarf, -O0, and other internal flags
(GDB index, etc) increases by 1.8%, optimized build is 35%.

The size impact may be somewhat greater in .o files (I haven't measured
that much - since the linked executable -O0 numbers seemed low enough)
due to relocations. These relocations could be removed if we taught the
llvm-symbolizer to handle indexed addressing in the .o file (GDB can't
cope with this just yet, but GDB won't be reading this info anyway).
Also debug_ranges could be shared between .o and .dwo, though ideally
debug_ranges would get a schema that could used index(+offset)
addressing, and move to the .dwo file, then we'd be back to sharing
addresses in the address pool again.

But for now, these sizes seem small enough to go ahead with this.

Verified that no other DW_TAGs are produced into the .o file other than
subprograms and inlined_subroutines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221306 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 22:12:25 +00:00
David Blaikie
41ebc263a9 Move cross-unit DIE caching to the DwarfFile level, so it doesn't interfere with fission-gmlt data and produce skeleton<>full unit cross referencing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221305 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 22:12:18 +00:00
Rafael Espindola
c326067040 Don't produce relocations for a difference in a section with no symbols.
We were producing a relocation for
----------------
.section foo,bar
La:
Lb:
 .long   La-Lb
--------------

but not for

---------------------
  .section foo,bar
zed:
La:
Lb:
 .long   La-Lb
----------------

This patch handles the case where both fragments are part of the first atom
in a section and there is no corresponding symbol to that atom.

This fixes pr21328.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221304 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 22:10:33 +00:00
Vasileios Kalintiris
1aa0694c03 [mips] Move COP2 & COP3 load/store instructions from MipsInstrFPU.td to MipsInstrInfo.td. NFC.
Reviewers: dsanders

Reviewed By: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5843

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221300 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 21:45:16 +00:00
Vasileios Kalintiris
a7a01d3c98 [mips] Add names and tests for the hardware registers
Reviewers: dsanders

Reviewed By: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5763

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221299 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 21:30:44 +00:00
Andrea Di Biagio
c270e8abbe [X86] Add 'FeatureSlowSHLD' to cpu 'bdver3'. Also explicit set FeatureAVX and FeatureSSE4A for all the bdver* cpus.
This patch adds 'FeatureSlowSHLD' to 'bdver3'.
According to the official AMD optimization guide for amdfam15: "Using
alternative code in place of SHLD achieves lower overall latency and
requires fewer execution resources. The 32-bit and 64-bit forms of
ADD, ADC, SHR, and LEA (except 16-bit form) are DirectPath
instructions, while SHLD is a VectorPath instruction."

This patch also explicitly sets feature AVX and SSE4A for all the bdver*
cpus. This part of the patch is a non-functional change and it is mainly
done for clarity reasons (Both XOP and FMA4 already imply AVX and SSE4A).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221296 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 21:18:09 +00:00
Arnaud A. de Grandmaison
e1bec75134 [PBQP] Callee saved regs should have a higher cost than scratch regs
Registers are not all equal. Some are not allocatable (infinite cost),
some have to be preserved but can be used, and some others are just free
to use.

Ensure there is a cost hierarchy reflecting this fact, so that the
allocator will favor scratch registers over callee-saved registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221293 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 20:51:29 +00:00
Arnaud A. de Grandmaison
8025a39d11 [PBQP] Tweak spill costs and coalescing benefits
This patch improves how the different costs (register, interference, spill
and coalescing) relates together. The assumption is now that:
 - coalescing (or any other "side effect" of reg alloc) is negative, and
   instead of being derived from a spill cost, they use the block
   frequency info.
 - spill costs are in the [MinSpillCost:+inf( range
 - register or interference costs are in [0.0:MinSpillCost( or +inf

The current MinSpillCost is set to 10.0, which is a random value high
enough that the current constraint builders do not need to worry about
when settings costs. It would however be worth adding a normalization
step for register and interference costs as the last step in the
constraint builder chain to ensure they are not greater than SpillMinCost
(unless this has some sense for some architectures). This would work well
with the current builder pipeline, where all costs are tweaked relatively
to each others, but could grow above MinSpillCost if the pipeline is
deep enough.

The current heuristic is tuned to depend rather on the number of uses of
a live interval rather than a density of uses, as used by the greedy
allocator. This heuristic provides a few percent improvement on a number
of benchmarks (eembc, spec, ...) and will definitely need to change once
spill placement is implemented: the current spill placement is really
ineficient, so making the cost proportionnal to the number of use is a
clear win.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221292 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 20:51:24 +00:00
Matt Arsenault
e2463284fc R600/SI: Rename div_scale dest operands to match documentation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221291 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 20:29:20 +00:00
Benjamin Kramer
4844826c15 AArch64: Pattern match integer vector abs like we do on ARM.
This kind of pattern is emitted by the loop vectorizer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221289 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 20:10:06 +00:00
Kostya Serebryany
c45da43b26 [asan] [mips] changed ShadowOffset32 for systems having 16kb PageSize; patch by Kumar Sukhani
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221288 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 19:46:15 +00:00
David Majnemer
e756ecfb0c InstSimplify: Fold a hasNoSignedWrap() call into a match() expression
No functionality change intended, it's just a little more concise.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221281 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 17:47:13 +00:00
David Majnemer
57269b02a8 InstSimplify: Fold a hasNoUnsignedWrap() call into a match() expression
No functionality change intended, it's just a little more concise.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221280 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 17:38:50 +00:00
Toma Tabacu
dd3894aa8f [mips] Improve support for the .set mips16/nomips16 assembler directives.
Summary:
Appropriately set/clear the FeatureBit for Mips16 when these assembler directives are used and also emit ".set nomips16" (previously, only ".set mips16" was being emitted).

These improvements allow for better testing of the .cpload/.cprestore assembler directives (which are not supposed to work when Mips16 is enabled).

Test Plan: The test is bare-bones because there are no MC tests for Mips16 instructions (there's only one, which checks that the Mips16 ELF header flag gets set), and that suggests to me that it has not been implemented yet in the IAS.

Reviewers: dsanders

Reviewed By: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5462

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221277 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 17:18:07 +00:00
Sanjay Patel
0bbad0131a remove function names from comments; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221274 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 16:27:42 +00:00
Sanjay Patel
f1ab807a2b fix typo in comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221273 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 16:09:50 +00:00
Simon Atanasyan
f7f14da355 [yaml2obj] Allow yaml2obj tool to recognize EF_MIPS_NAN2008 flag
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221268 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 13:33:36 +00:00
Rafael Espindola
5dac5bd225 Remove FindProgramByName. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221258 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 12:35:47 +00:00
Yaron Keren
3f4bf44b1c Fix Visual C++ warning, Program.inc(85): warning C4018: '<' : signed/unsigned mismatch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221252 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 09:22:41 +00:00
NAKAMURA Takumi
8f129a446d sys::findProgramByName(): [Win32] Tweak to pass lowercase .exe to SearchPath() to appease clang Driver's tests.
It seems SearchPath() doesn't show actual extension on the filesystem.

FIXME: Shall we use FindFirstFile() here?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221246 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 08:17:15 +00:00
David Majnemer
ab15115ee0 CodeGen: Enable DWARF emission for MS ABI targets
This is experimental, just barely enough to get things to not
immediately combust.

A note for those who are curious:
Only lld can successfully link the object files, other linkers truncate
the section names making the debug sections illegible to debuggers.

Even with this in mind, we believe we are having trouble with SECREL
relocations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221245 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 08:03:31 +00:00
Yaron Keren
60234de3b5 #include <winbase.h> is not enough for Visual C++ 2013, it errors:
1>C:\Program Files (x86)\Windows Kits\8.1\Include\um\minwinbase.h(46):
error C2146: syntax error : missing ';' before identifier 'nLength'
1>C:\Program Files (x86)\Windows Kits\8.1\Include\um\minwinbase.h(46):
error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
...

including <windows.h> is actually required.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221244 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 07:53:30 +00:00
NAKAMURA Takumi
ccf2cd179b R600/LLVMBuild.txt: Add TransformUtils.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221228 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 02:16:53 +00:00
Reid Kleckner
9d18e626cc Revert "Transforms: reapply SVN r219899"
This reverts commit r220811 and r220839. It made an incorrect change to
musttail handling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221226 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 02:02:14 +00:00
Mark Heffernan
f4b76be936 Remove setPreservesCFG from instcombine. The pass, in particular, does not
preserve LoopSimplify because instcombine may replace branch predicates
with undef which loop simplify then replaces with always exit.  Replace
setPreservesCFG with the more constrained preservation of DomTree and
LoopInfo.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221223 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 01:51:01 +00:00
Michael J. Spencer
58206dd147 Use findProgramByName.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221221 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 01:29:59 +00:00
Michael J. Spencer
376a2e104f [Support][Program] Add findProgramByName(Name, OptionalPaths)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221220 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 01:29:29 +00:00
Kevin Enderby
957d027c5e Remove the static version of getScatteredRelocationType() now that r221211 added
a public version MachOObjectFile::getScatteredRelocationType().

This should fix the build bot for the unused function error.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221216 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 01:12:39 +00:00
Sanjoy Das
67bcf74b14 The patchpoint lowering logic would crash with live constants equal to
the tombstone or empty keys of a DenseMap<int64_t, T>.  This patch
fixes the issue (and adds a tests case).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221214 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 00:59:21 +00:00
Kevin Enderby
a25032214d Add the code and test cases for 32-bit Intel to llvm-objdump’s Mach-O symbolizer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221211 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 00:43:16 +00:00
Colin LeMahieu
38d3e4d5d8 [Hexagon] Reverting 220584 to address ASAN errors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221210 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 00:14:36 +00:00
Sanjoy Das
60c2a98db4 Change logic in StackMaps::recordStackMapOpers to use the isInt<32>
predicate instead of bitwise operations.

This is not a functional change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221209 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 00:06:57 +00:00
Akira Hatanaka
abe09fce79 Rename variables to conform to llvm coding standards.
Differential Revision: http://reviews.llvm.org/D6062


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221204 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-03 23:24:10 +00:00
Hal Finkel
cd9acde7f3 Use AA in LoadCombine
LoadCombine can be smarter about aborting when a writing instruction is
encountered, instead of aborting upon encountering any writing instruction, use
an AliasSetTracker, and only abort when encountering some write that might
alias with the loads that could potentially be combined.

This was originally motivated by comments made (and a test case provided) by
David Majnemer in response to PR21448. It turned out that LoadCombine was not
responsible for that PR, but LoadCombine should also be improved so that
unrelated stores (and @llvm.assume) don't interrupt load combining.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221203 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-03 23:19:16 +00:00
David Blaikie
42090c633f Use common range handling for the CU's ranges
This generalizes the range handling for ranges in both the skeleton and
full unit, laying the foundation for the addition of more ranges (rather
than just the CU's special case) in the skeleton CU with fission+gmlt.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221202 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-03 23:10:59 +00:00
Akira Hatanaka
85a5ac00e0 [AArch64] Make function processLogicalImmediate more efficient. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221199 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-03 23:06:31 +00:00
David Majnemer
c671375e8e InstCombine: Remove infinite loop caused by FoldOpIntoPhi
FoldOpIntoPhi could create an infinite loop if the PHI could potentially
reach a BB it was considering inserting instructions into.  The
instructions it would insert would eventually lead to other combines
firing which would, again, lead to FoldOpIntoPhi firing.

The solution is to handicap FoldOpIntoPhi so that it doesn't attempt to
insert instructions that the PHI might reach.

This fixes PR21377.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221187 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-03 21:55:12 +00:00
David Blaikie
fcd4288009 Push the CURangeList down into the skeleton CU (where available) rather than the full CU
So that it may be shared between skeleton/full compile unit, for CU
ranges and other ranges to be added for fission+gmlt.

(at some point we might want some kind of object shared between the
skeleton and full compile units for all those things we only want one of
in that scope, rather than having the full unit always look through to
the skeleton... - alternatively, we might be able to have the skeleton
pointer (or another, separate pointer) point to the skeleton or to the
unit itself in non-fission, so we don't have to special case its
absence)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221186 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-03 21:52:56 +00:00
Ahmed Bougacha
38728dc043 [X86] Add debug print name for X86ISD::[US]MUL8. NFC-ish.
The opcodes were added in r220516, but I forgot to add the print names.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221185 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-03 21:25:18 +00:00
David Blaikie
dc1d16ae54 Add DwarfCompileUnit::BaseAddress to track the base address used by relative addressing in debug_ranges and debug_loc
This is one of a few steps to generalize range handling to include the
CU range (thus the CU's range list will be moved into the range list
list, losing track of the base address in the process), which means
generalizing ranges from both the skeleton and full unit under fission.

And... then I can used that generalized support for ranges in
fission+gmlt where there'll be a bunch more ranges in the skeleton.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221182 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-03 21:15:30 +00:00
Akira Hatanaka
8d7cc6b0ff [ARM, inline-asm] Fix ARMTargetLowering::getRegForInlineAsmConstraint to return
register class tGPRRegClass if the target is thumb1.

This commit fixes a crash that occurs during register allocation which was
triggered when a virtual register defined by an inline-asm instruction had to
be spilled.
 
rdar://problem/18740489


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221178 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-03 20:37:04 +00:00
Ahmed Bougacha
40453da779 [X86] 8bit divrem: Improve codegen for AH register extraction.
For 8-bit divrems where the remainder is used, we used to generate:
    divb  %sil
    shrw  $8, %ax
    movzbl  %al, %eax

That was to avoid an H-reg access, which is problematic mainly because
it isn't possible in REX-prefixed instructions.

This patch optimizes that to:
    divb  %sil
    movzbl  %ah, %eax

To do that, we explicitly extend AH, and extract the L-subreg in the
resulting register.  The extension is done using the NOREX variants of
MOVZX.  To support signed operations, MOVSX_NOREX is also added.
Further, this introduces a new SDNode type, [us]divrem_ext_hreg, which is
then lowered to a sequence containing a single zext (rather than 2).

Differential Revision: http://reviews.llvm.org/D6064


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221176 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-03 20:26:35 +00:00
Hal Finkel
f16d6b1ff1 EarlyCSE should ignore calls to @llvm.assume
EarlyCSE uses a simple generation scheme for handling memory-based
dependencies, and calls to @llvm.assume (which are marked as writing to memory
to ensure the preservation of control dependencies) disturb that scheme
unnecessarily. Skipping calls to @llvm.assume is legal, and the alternative
(adding AA calls in EarlyCSE) is likely undesirable (we have GVN for that).

Fixes PR21448.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221175 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-03 20:21:32 +00:00
Tom Stellard
fbd383c93c Reapply: R600: Make sure to inline all internal functions
Function calls aren't supported yet.

This was reverted due to build breakages, which should be fixed now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221173 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-03 19:49:05 +00:00
Chad Rosier
3f4e9cb609 [Reassociate] Canonicalize negative constants out of expressions.
This gives CSE/GVN more options to eliminate duplicate expressions.
This is a follow up patch to http://reviews.llvm.org/D4904.

http://reviews.llvm.org/D5363

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221171 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-03 19:11:30 +00:00
Paul Robinson
c3e82bf9f5 Normally an 'optnone' function goes through fast-isel, which does not
call DAGCombiner. But we ran into a case (on Windows) where the
calling convention causes argument lowering to bail out of fast-isel,
and we end up in CodeGenAndEmitDAG() which does run DAGCombiner.
So, we need to make DAGCombiner check for 'optnone' after all.

Commit includes the test that found this, plus another one that got
missed in the original optnone work.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221168 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-03 18:19:26 +00:00
Duncan P. N. Exon Smith
5e84760dde IR: MDNode => Value: Instruction::getAllMetadataOtherThanDebugLoc()
Change `Instruction::getAllMetadataOtherThanDebugLoc()` from a vector of
`MDNode` to one of `Value`.  Part of PR21433.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221167 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-03 18:13:57 +00:00
Charlie Turner
c3606b6b2e Remove the cortex-a9-mp CPU.
This CPU definition is redundant. The Cortex-A9 is defined as
supporting multiprocessing extensions. Remove its definition and
update appropriate tests.

LLVM defines both a cortex-a9 CPU and a cortex-a9-mp CPU. The only
difference between the two CPU definitions in ARM.td is that
cortex-a9-mp contains the feature FeatureMP for multiprocessing
extensions.

This is redundant since the Cortex-A9 is defined as having
multiprocessing extensions in the TRMs. armcc also defines the
Cortex-A9 as having multiprocessing extensions by default.

Change-Id: Ifcadaa6c322be0a33d9d2a39cfdd7da1d75981a7

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221166 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-03 17:38:00 +00:00
David Blaikie
c34113433a Cleanup some unused or trivial functions in DwarfCompileUnit
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221164 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-03 17:10:38 +00:00
David Blaikie
60b9b0d581 Sink DwarfUnit::CURanges into DwarfCompileUnit
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221161 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-03 16:40:43 +00:00
Oliver Stannard
e13ea1ddda [AArch64] Fix miscompile of comparison with 0xffffffffffffffff
Some literals in the AArch64 backend had 15 'f's rather than 16, causing
comparisons with a constant 0xffffffffffffffff to be miscompiled.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221157 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-03 15:28:40 +00:00