Commit Graph

81068 Commits

Author SHA1 Message Date
Peter Collingbourne 7a544f7327 LibDriver: Fix output path inference.
The inferred output file name is based on the first input file, not the
first one with extension .obj. The output file was also being written to
the wrong directory; it needs to be written to whichever directory on the
libpath it was found in. This change fixes both issues.

llvm-svn: 241710
2015-07-08 19:00:46 +00:00
Adam Nemet 0131a5693a [LAA] Add missing debug output after r239285
r239285 ([LoopAccessAnalysis] Teach LAA to check the memory dependence
between strided accesses.) introduced a new case under
MemoryDepChecker::isDependent.  We normally have debug output for each
case.

llvm-svn: 241707
2015-07-08 18:47:38 +00:00
Reid Kleckner ed012dbf2a [SEH] Ensure that empty __except blocks have their own BB
The 32-bit lowering assumed that WinEHPrepare had this invariant.
WinEHPrepare did it for C++, but not SEH. The result was that we would
insert calls to llvm.x86.seh.restoreframe in normal basic blocks, which
corrupted the frame pointer.

llvm-svn: 241699
2015-07-08 18:08:52 +00:00
Duncan P. N. Exon Smith ad98745561 MC: Constify MCSubtargetInfo in getDeprecationInfo(), NFC
There's no reason to be able to mutate `MCSubtargetInfo` in
`getDeprecationInfo()`.  Constify the reference.

llvm-svn: 241693
2015-07-08 17:30:55 +00:00
Rafael Espindola 65a9953d69 Inline function into only use.
llvm-svn: 241692
2015-07-08 17:26:24 +00:00
Rafael Espindola c291a4b212 Add a helper function to reduce a bit of code duplication.
llvm-svn: 241691
2015-07-08 17:08:26 +00:00
Eli Bendersky 8e131f8cbc Cosmetic cleanups - NFC
Remove commented lines, trailing whitespace, etc.

llvm-svn: 241687
2015-07-08 16:33:21 +00:00
James Y Knight f238d176eb [SPARC] Cleanup handling of the Y/ASR registers.
- Implement copying ASR to/from GPR regs.
- Mark ASRs as non-allocatable, so it won't try to arbitrarily use
  them inappropriately.
- Instead of inserting explicit WRASR/RDASR nodes in the MUL/DIV
  routines, just do normal register copies.
- Also...mark div as using Y, not just writing it.

Added a test case with some code which previously died with an
assertion failure (with -O0), or produced wrong code (otherwise).

(Third time's the charm?)

Differential Revision: http://reviews.llvm.org/D10401

llvm-svn: 241686
2015-07-08 16:25:12 +00:00
Rafael Espindola 51271bdc4f Use a range loop. NFC.
llvm-svn: 241685
2015-07-08 16:16:15 +00:00
Krzysztof Parzyszek 21b53a5120 [Hexagon] Generate "insert" instructions more aggressively
llvm-svn: 241683
2015-07-08 14:47:34 +00:00
Krzysztof Parzyszek d19b4767ff Revert 241681: causes Windows builds to fail
llvm-svn: 241682
2015-07-08 14:34:13 +00:00
Krzysztof Parzyszek 712b15b45e [Hexagon] Generate "insert" instructions more aggressively
llvm-svn: 241681
2015-07-08 14:22:27 +00:00
Silviu Baranga 1b6b50a921 [LAA] Merge memchecks for accesses separated by a constant offset
Summary:
Often filter-like loops will do memory accesses that are
separated by constant offsets. In these cases it is
common that we will exceed the threshold for the
allowable number of checks.

However, it should be possible to merge such checks,
sice a check of any interval againt two other intervals separated
by a constant offset (a,b), (a+c, b+c) will be equivalent with
a check againt (a, b+c), as long as (a,b) and (a+c, b+c) overlap.
Assuming the loop will be executed for a sufficient number of
iterations, this will be true. If not true, checking against
(a, b+c) is still safe (although not equivalent).

As long as there are no dependencies between two accesses,
we can merge their checks into a single one. We use this
technique to construct groups of accesses, and then check
the intervals associated with the groups instead of
checking the accesses directly.

Reviewers: anemet

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10386

llvm-svn: 241673
2015-07-08 09:16:33 +00:00
Simon Pilgrim 752de5dff2 [X86][SSE] Added (V)ROUNDSD + (V)ROUNDSS stack folding support
llvm-svn: 241671
2015-07-08 08:07:57 +00:00
Karthik Bhat d2bc0d8423 Allow constfolding of llvm.sin.* and llvm.cos.* intrinsics
This patch const folds llvm.sin.* and llvm.cos.* intrinsics whenever feasible.

Differential Revision: http://reviews.llvm.org/D10836

llvm-svn: 241665
2015-07-08 03:55:47 +00:00
Mehdi Amini ffc1402fad Remove IsLittleEndian from TargetLowering and redirect to DataLayout
Summary:
This change is part of a series of commits dedicated to have a single
DataLayout during compilation by using always the one owned by the
module.

Reviewers: echristo

Subscribers: llvm-commits, rafael, yaron.keren

Differential Revision: http://reviews.llvm.org/D11017

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 241655
2015-07-08 01:00:38 +00:00
Mehdi Amini f50daedfc7 Redirect DataLayout from TargetMachine to Module in SjLjEHPrepare
Summary:
This change is part of a series of commits dedicated to have a single
DataLayout during compilation by using always the one owned by the
module.

Reviewers: echristo

Subscribers: yaron.keren, rafael, llvm-commits

Differential Revision: http://reviews.llvm.org/D11009

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 241654
2015-07-08 01:00:31 +00:00
Reid Kleckner e69bdb8619 [WinEH] Make llvm.x86.seh.restoreframe work for stack realignment prologues
The incoming EBP value points to the end of a local stack allocation, so
we can use that to restore ESI, the base pointer. Once we do that, we
can use local stack allocations. If we know we need stack realignment,
spill the original frame pointer in the prologue and reload it after
restoring ESI.

llvm-svn: 241648
2015-07-07 23:45:58 +00:00
Mehdi Amini ed6edbf17a Redirect DataLayout from TargetMachine to Module in StackProtector
Summary:
This change is part of a series of commits dedicated to have a single
DataLayout during compilation by using always the one owned by the
module.

Reviewers: echristo

Subscribers: llvm-commits, rafael, yaron.keren

Differential Revision: http://reviews.llvm.org/D11010

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 241646
2015-07-07 23:38:49 +00:00
Alex Lorenz 900b5cb2ab MIR Printer: Use a module slot tracker to print global address operands. NFC.
This commit adopts the 'ModuleSlotTracker' class, which was surfaced in r240842,
to print the global address operands. This change ensures that the slot tracker
won't have to be recreated every time a global address operand is printed,
making the MIR printing more efficient.

llvm-svn: 241645
2015-07-07 23:27:53 +00:00
Reid Kleckner d5afc62ff6 [WinEH] Add localaddress intrinsic instead of using frameaddress
Clang uses this for SEH finally. The new intrinsic will produce the
right value when stack realignment is required.

llvm-svn: 241643
2015-07-07 23:23:03 +00:00
Arnold Schwaighofer 3d43f66c91 Add more nvcasts
Tim Northover has told me that they can occur when the compiler cleverly
constructs constants - as demonstrated in the test case.

rdar://21703486

llvm-svn: 241641
2015-07-07 23:13:18 +00:00
Dan Gohman 489abd7046 [WebAssembly] Set the scheduling preference.
llvm-svn: 241637
2015-07-07 22:38:06 +00:00
Reid Kleckner 60381791b5 Rename llvm.frameescape and llvm.framerecover to localescape and localrecover
Summary:
Initially, these intrinsics seemed like part of a family of "frame"
related intrinsics, but now I think that's more confusing than helpful.
Initially, the LangRef specified that this would create a new kind of
allocation that would be allocated at a fixed offset from the frame
pointer (EBP/RBP). We ended up dropping that design, and leaving the
stack frame layout alone.

These intrinsics are really about sharing local stack allocations, not
frame pointers. I intend to go further and add an `llvm.localaddress()`
intrinsic that returns whatever register (EBP, ESI, ESP, RBX) is being
used to address locals, which should not be confused with the frame
pointer.

Naming suggestions at this point are welcome, I'm happy to re-run sed.

Reviewers: majnemer, nicholas

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11011

llvm-svn: 241633
2015-07-07 22:25:32 +00:00
Sanjay Patel d4e1bb89e3 fix typo; NFC
llvm-svn: 241629
2015-07-07 21:31:54 +00:00
Alex Lorenz cbbfd0b194 MIR Serialization: Serialize the 'dead' register machine operand flag.
llvm-svn: 241624
2015-07-07 20:34:53 +00:00
Mehdi Amini 8ac7a9d57a Redirect DataLayout from TargetMachine to Module in SelectionDAG
Summary:
SelectionDAG itself is not invoking directly the DataLayout in the
TargetMachine, but the "TargetLowering" class is still using it. I'll
address it in a following commit.

This change is part of a series of commits dedicated to have a single
DataLayout during compilation by using always the one owned by the
module.

Reviewers: echristo

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11000

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 241618
2015-07-07 19:07:19 +00:00
David Majnemer 6cc21f909c Revert "Revert r241570, it caused PR24053"
This reverts commit r241602.  We had a latent bug in SCCP where we would
make a basic block empty and then proceed to ask questions about it's
terminator.

llvm-svn: 241616
2015-07-07 18:49:41 +00:00
Mehdi Amini f6727b0da1 Redirect DataLayout from TargetMachine to Module in GlobalMerge
Summary:
This change is part of a series of commits dedicated to have a single
DataLayout during compilation by using always the one owned by the
module.

Reviewers: echristo

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10987

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 241615
2015-07-07 18:49:25 +00:00
Mehdi Amini 4fe3798dca Redirect DataLayout from TargetMachine to Module in CodeGen Prepare
Summary:
This change is part of a series of commits dedicated to have a single
DataLayout during compilation by using always the one owned by the
module.

Reviewers: echristo

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10986

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 241614
2015-07-07 18:45:17 +00:00
Mehdi Amini 7da8b536f4 Redirect DataLayout from TargetMachine to Module in FastISel
Summary:
This change is part of a series of commits dedicated to have a single
DataLayout during compilation by using always the one owned by the
module.

Reviewers: echristo

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10985

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 241613
2015-07-07 18:39:02 +00:00
Arnold Schwaighofer 4bc34b1515 Add a pattern for a nvcast from v2f64 -> v4f32
Since the NvCast is generated by the selection process the concerns about
endianess and bit reversal don't apply.

rdar://21703486

llvm-svn: 241611
2015-07-07 18:31:55 +00:00
Mehdi Amini 42e9f96712 Redirect DataLayout from TargetMachine to Module in MachineFunction
Summary:
This change is part of a series of commits dedicated to have a
single DataLayout during compilation by using always the one owned by the
module.

Reviewers: echristo

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10984

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 241610
2015-07-07 18:20:57 +00:00
Reid Kleckner af04c2a972 Use default member initializers to deduplicate code in X86MachineFunctionInfo, NFC
llvm-svn: 241609
2015-07-07 18:12:06 +00:00
Rafael Espindola 99d294ee9a Fix the -DBUILD_SHARED_LIBS=ON build.
llvm-svn: 241608
2015-07-07 17:48:00 +00:00
Alex Lorenz 7a503facdf MIR Parser: wrap 'MBBSlots' from the MI parsing functions in a struct. NFC.
This commit modifies the interface for the machine instruction parsing
functions by wrapping the parameter 'MBBSlots' in a new structure called
'PerFunctionMIParsingState'. This change is useful as in the future I will be
able to pass new parameters to the machine instruction parser just by modifying
the 'PerFunctionMIParsingState' structure instead of adding a new parameter to
each function.

llvm-svn: 241607
2015-07-07 17:46:43 +00:00
Rafael Espindola be8b0ea854 Delete UnknownAddress. It is a perfectly valid symbol value.
getSymbolValue now returns a value that in convenient for most callers:
* 0 for undefined
* symbol size for common symbols
* offset/address for symbols the rest

Code that needs something more specific can check getSymbolFlags.

llvm-svn: 241605
2015-07-07 17:12:59 +00:00
Rafael Espindola ef888a4db6 Simplify by passing in the section of the symbol. NFC.
llvm-svn: 241603
2015-07-07 16:45:55 +00:00
Nico Weber feb13e9e09 Revert r241570, it caused PR24053
llvm-svn: 241602
2015-07-07 16:42:50 +00:00
Krzysztof Parzyszek a45971ac94 [Hexagon] Fix unused variable warnings in NDEBUG build caused by r241595
llvm-svn: 241600
2015-07-07 16:02:11 +00:00
Reid Kleckner 9200b2f93b [WinEH] Add a report_fatal_error for 32-bit stack realignment
This type of prologue isn't supported yet. Implementing it should be a
matter of copying the adjusted incoming EBP into ESI (the base pointer)
instead of EBP.  The original EBP can be saved and restored from other
memory afterwards.

llvm-svn: 241597
2015-07-07 15:47:29 +00:00
Krzysztof Parzyszek e53b31a593 [Hexagon] Implement bit-tracking facility with specifics for Hexagon
This includes code that is intended to be target-independent as well
as the Hexagon-specific details. This is just the framework without
any users.

llvm-svn: 241595
2015-07-07 15:16:42 +00:00
Rafael Espindola 7e7be92c7f Common symbols don't have a value.
At least not in the interface exposed by ObjectFile. This matches what ELF and
COFF implement.

Adjust existing code that was expecting them to have values. No overall
functionality change intended.

Another option would be to change the interface and the ELF and COFF
implementations to say that the value of a common symbol is its size.

llvm-svn: 241593
2015-07-07 15:05:09 +00:00
Sanjay Patel cf0a80728c use range-based for loops; NFCI
llvm-svn: 241592
2015-07-07 15:03:53 +00:00
Rafael Espindola d82477278b Common symbols are not undefined, at least for ObjectFile.
They are implemented like that in some object formats, but for the interface
provided by lib/Object, SF_Undefined and SF_Common are different things.

This matches the ELF and COFF implementation and fixes llvm-nm for MachO.

llvm-svn: 241587
2015-07-07 14:26:39 +00:00
Rafael Espindola 05cbccc649 Simplify, NFC.
In these two contexts we really just want the raw n_value. No need to use
getSymbolValue which checks for special cases where, semantically, the symbol
has no value.

llvm-svn: 241584
2015-07-07 13:58:32 +00:00
David Majnemer 381326d771 [IR] Make getFirstNonPHI return null if the BB is empty
getFirstNonPHI's documentation states that it returns null if there is
no non-PHI instruction.  However, it instead returns a pointer to the
end iterator.  The implementation of getFirstNonPHI claims that
dereferencing the iterator will result in an assertion failure but this
doesn't occur.  Instead, machinery like getFirstInsertionPt will attempt
to isa<> this invalid memory which results in unpredictable behavior.
Instead, make getFirst* return null if no such instruction exists.

llvm-svn: 241570
2015-07-07 09:15:29 +00:00
Denis Protivensky b612902faa Fix gcc warnings of different enum and non-enum types in ternaries
llvm-svn: 241567
2015-07-07 07:48:48 +00:00
Akira Hatanaka 1bc8af78f4 [ARM] Define a subtarget feature and use it to decide whether long calls should
be emitted.

This is needed to enable ARM long calls for LTO and enable and disable it on a
per-function basis.

Out-of-tree projects currently using EnableARMLongCalls to emit long calls
should start passing "+long-calls" to the feature string (see the changes made
to clang in r241565).

rdar://problem/21529937

Differential Revision: http://reviews.llvm.org/D9364

llvm-svn: 241566
2015-07-07 06:54:42 +00:00
Alex Lorenz 36962cd925 MIR Parser: Verify the implicit machine register operands.
This commit verifies that the parsed machine instructions contain the implicit
register operands as specified by the MCInstrDesc. Variadic and call
instructions aren't verified.

Reviewers: Duncan P. N. Exon Smith

Differential Revision: http://reviews.llvm.org/D10781

llvm-svn: 241537
2015-07-07 02:08:46 +00:00