Commit Graph

373 Commits

Author SHA1 Message Date
Krzysztof Parzyszek 0a04ac2153 [Hexagon] Simplify HexagonInstrInfo::isPredicable
Remove all the checks for constant extenders from isPredicable. The users
of it should be the ones checking cost/profitability.

llvm-svn: 269664
2016-05-16 16:56:10 +00:00
Krzysztof Parzyszek 0f791f44c7 [Hexagon] Remove dead nodes from SelectionDAG to avoid cycles
Recent changes to the instruction selection code exposed a problem where
a dead node was not removed on time. This node had both input and output
chains, which lead to an apparent cycle.

llvm-svn: 269458
2016-05-13 18:48:15 +00:00
Krzysztof Parzyszek 4afed5521d [Hexagon] Expand VSelect pseudo instructions
llvm-svn: 269328
2016-05-12 19:16:02 +00:00
Krzysztof Parzyszek e60e5fee0a [Hexagon] Properly handle instruction selection of vsplat intrinsics
llvm-svn: 269312
2016-05-12 17:21:40 +00:00
Krzysztof Parzyszek c2c7868591 [Hexagon] Use offsets relative to FP+8 in .cfi_offset instructions
When generating .cfi_offset instructions, make sure that the offset is
calculated with respect to the register used to define the CFA (which is
currently always FP+8).

llvm-svn: 269191
2016-05-11 14:53:07 +00:00
Krzysztof Parzyszek a356bb7fa4 [ScheduleDAG] Make sure to process all def operands before any use operands
An example from Hexagon where things went wrong:
  %R0<def> = L2_loadrigp <ga:@fp04>      ; load function address
  J2_callr %R0<kill>, ..., %R0<imp-def>  ; call *R0, return value in R0

ScheduleDAGInstrs::buildSchedGraph would visit all instructions going
backwards, and in each instruction it would visit all operands in their
order on the operand list. In the case of this call, it visited the use
of R0 first, then removed it from the set Uses after it visited the def.
This caused the DAG to be missing the data dependence edge on R0 between
the load and the call.

Differential Revision: http://reviews.llvm.org/D20102

llvm-svn: 269076
2016-05-10 16:50:30 +00:00
Krzysztof Parzyszek 7c7bb538cb [Hexagon] Treat all conditional branches as predicted (not-taken by default)
llvm-svn: 268946
2016-05-09 18:22:07 +00:00
Krzysztof Parzyszek f5cbac93eb [Hexagon] Optimize addressing modes for load/store
Patch by Jyotsna Verma.

llvm-svn: 268051
2016-04-29 15:49:13 +00:00
Krzysztof Parzyszek c5a4e26410 [RDF] Improve handling of inline-asm
- Keep implicit defs from inline-asm instructions.
- Treat register references from inline-asm as fixed.

llvm-svn: 267936
2016-04-28 20:33:33 +00:00
Krzysztof Parzyszek 7ea9a529aa Reset the TopRPTracker's position in ScheduleDAGMILive::initQueues
ScheduleDAGMI::initQueues changes the RegionBegin to the first non-debug
instruction. Since it does not track register pressure, it does not affect
any RP trackers. ScheduleDAGMILive inherits initQueues from ScheduleDAGMI,
and it does reset the TopTPTracker in its schedule method. Any derived,
target-specific scheduler will need to do it as well, but the TopRPTracker
is only exposed as a "const" object to derived classes. Without the ability
to modify the tracker directly, this leaves a derived scheduler with a
potential of having the TopRPTracker out-of-sync with the CurrentTop.

The symptom of the problem:
  void llvm::ScheduleDAGMILive::scheduleMI(llvm::SUnit *, bool):
  Assertion `TopRPTracker.getPos() == CurrentTop && "out of sync"' failed.

Differential Revision: http://reviews.llvm.org/D19438

llvm-svn: 267918
2016-04-28 19:17:44 +00:00
Krzysztof Parzyszek efd72857a3 [RDF] Handle undefined registers in RDF copy propagation
When updating the graph, make sure that new uses without reaching defs
are handled correctly.

llvm-svn: 267891
2016-04-28 15:09:19 +00:00
Krzysztof Parzyszek 4773f647bd [Tail duplication] Handle source registers with subregisters
When a block is tail-duplicated, the PHI nodes from that block are
replaced with appropriate COPY instructions. When those PHI nodes
contained use operands with subregisters, the subregisters were
dropped from the COPY instructions, resulting in incorrect code.

Keep track of the subregister information and use this information
when remapping instructions from the duplicated block.

Differential Revision: http://reviews.llvm.org/D19337

llvm-svn: 267583
2016-04-26 18:36:34 +00:00
Krzysztof Parzyszek e8e754da74 [Hexagon] Register save/restore functions do not follow regular conventions
Do not mark them as modifying any of the volatile registers by default.

llvm-svn: 267433
2016-04-25 17:49:44 +00:00
Krzysztof Parzyszek 8c6fb415fd [Hexagon] Properly close live range in HexagonBlockRanges ---add testcase
llvm-svn: 267174
2016-04-22 17:30:13 +00:00
Krzysztof Parzyszek 9062b75a93 [Hexagon] Teach mux expansion how to deal with undef predicates
llvm-svn: 267165
2016-04-22 16:47:01 +00:00
Krzysztof Parzyszek 5de5910d7d [Hexagon] Expand handling of the small-data/bss section
llvm-svn: 267034
2016-04-21 18:56:45 +00:00
Krzysztof Parzyszek 16331f0aa0 [RDF] Consider register as live if any alias is live
This only affects the recomputation of kill flags.

llvm-svn: 266875
2016-04-20 14:33:23 +00:00
Krzysztof Parzyszek 3af70c126d [Hexagon] Fix operand swapping in HexagonPeephole
Also, disable zero- and size-extend optimizations for now.

llvm-svn: 266821
2016-04-19 21:36:24 +00:00
Krzysztof Parzyszek 5ffee8d829 [Hexagon] Fix printing the address operand of S2_storerinewabs
llvm-svn: 266811
2016-04-19 20:20:33 +00:00
Adrian Prantl 75819aedf6 [PR27284] Reverse the ownership between DICompileUnit and DISubprogram.
Currently each Function points to a DISubprogram and DISubprogram has a
scope field. For member functions the scope is a DICompositeType. DIScopes
point to the DICompileUnit to facilitate type uniquing.

Distinct DISubprograms (with isDefinition: true) are not part of the type
hierarchy and cannot be uniqued. This change removes the subprograms
list from DICompileUnit and instead adds a pointer to the owning compile
unit to distinct DISubprograms. This would make it easy for ThinLTO to
strip unneeded DISubprograms and their transitively referenced debug info.

Motivation
----------

Materializing DISubprograms is currently the most expensive operation when
doing a ThinLTO build of clang.

We want the DISubprogram to be stored in a separate Bitcode block (or the
same block as the function body) so we can avoid having to expensively
deserialize all DISubprograms together with the global metadata. If a
function has been inlined into another subprogram we need to store a
reference the block containing the inlined subprogram.

Attached to https://llvm.org/bugs/show_bug.cgi?id=27284 is a python script
that updates LLVM IR testcases to the new format.

http://reviews.llvm.org/D19034
<rdar://problem/25256815>

llvm-svn: 266446
2016-04-15 15:57:41 +00:00
Colin LeMahieu efe3732883 Revert r265817
lld tests need to be addressed.

llvm-svn: 265822
2016-04-08 18:15:37 +00:00
Colin LeMahieu 4a1975ba8e [llvm-objdump] Printing hex instead of dec by default
Differential Revision: http://reviews.llvm.org/D18770

llvm-svn: 265817
2016-04-08 17:55:03 +00:00
Adrian Prantl b8089516a5 testcase gardening: update the emissionKind enum to the new syntax. (NFC)
llvm-svn: 265081
2016-04-01 00:16:49 +00:00
Krzysztof Parzyszek 2d65ea74dc [Hexagon] Improve handling of unaligned vector loads and stores
llvm-svn: 264584
2016-03-28 15:43:03 +00:00
Krzysztof Parzyszek bb63f66686 [Hexagon] Only use restore functions for single register at -Oz
llvm-svn: 264581
2016-03-28 14:52:21 +00:00
Krzysztof Parzyszek c9d4caa32c [Hexagon] Add support for run-time stack overflow checking
Patch by Sundeep Kushwaha.

llvm-svn: 264328
2016-03-24 20:20:07 +00:00
Krzysztof Parzyszek 181fdbd174 [Hexagon] Generate PIC-specific versions of save/restore routines
In PIC mode, the registers R14, R15 and R28 are reserved for use by
the PLT handling code. This causes all functions to clobber these
registers. While this is not new for regular function calls, it does
also apply to save/restore functions, which do not follow the standard
ABI conventions with respect to the volatile/non-volatile registers.

Patch by Jyotsna Verma.

llvm-svn: 264324
2016-03-24 19:18:48 +00:00
Paul Robinson 51fa0a87c3 Fix tests that used CHECK-NEXT-NOT and CHECK-DAG-NOT.
FileCheck actually doesn't support combo suffixes.

Differential Revision: http://reviews.llvm.org/D17588

llvm-svn: 262054
2016-02-26 19:40:34 +00:00
Krzysztof Parzyszek 7a737d1abb [Hexagon] Implement TLS support
Patch by Anand Kodnani.

llvm-svn: 261218
2016-02-18 15:42:57 +00:00
Krzysztof Parzyszek 6895b2ceb2 [Hexagon] Add support for __builtin_prefetch
llvm-svn: 261210
2016-02-18 13:58:38 +00:00
Krzysztof Parzyszek 04bf43bd83 [Hexagon] Missed testcase update in r260895
llvm-svn: 260897
2016-02-15 16:15:02 +00:00
Krzysztof Parzyszek 73f1a40626 [Hexagon] Use zero-extending loads for anyext
llvm-svn: 260895
2016-02-15 16:01:01 +00:00
Krzysztof Parzyszek 7793ddb043 [Hexagon] Optimize stack slot spills
Replace spills to memory with spills to registers, if possible. This
applies mostly to predicate registers (both scalar and vector), since
they are very limited in number. A spill of a predicate register may
happen even if there is a general-purpose register available. In cases
like this the stack spill/reload may be eliminated completely.

This optimization will consider all stack objects, regardless of where
they came from and try to match the live range of the stack slot with
a dead range of a register from an appropriate register class.

llvm-svn: 260758
2016-02-12 22:53:35 +00:00
Krzysztof Parzyszek 996ad1fa00 [Hexagon] Replace expansion of spill pseudo-instructions in frame lowering
Rewrite the code to handle all pseudo-instructions in a single pass.

This temporarily reverts spill slot optimization that used general-
purpose registers to hold values of spilled predicate registers.

llvm-svn: 260696
2016-02-12 18:19:53 +00:00
Krzysztof Parzyszek 7d5b4db7f9 [Hexagon] Eliminate pseudo instructions for circ/brev loads and stores
We can generate the actual instructions from the intrinsics without the
need for pseudo-instructions. Also, since the intrinsics have a side-
effect in a form of a store, attempt to optimize away loads from the
store location.

llvm-svn: 260690
2016-02-12 17:01:51 +00:00
Krzysztof Parzyszek e59964377c [Hexagon] Specify vector alignment in DataLayout string
The DataLayout can calculate alignment of vectors based on the alignment
of the element type and the number of elements. In fact, it is the product
of these two values. The problem is that for vectors of N x i1, this will
return the alignment of N bytes, since the alignment of i1 is 8 bits. The
vector types of vNi1 should be aligned to N bits instead. Provide explicit
alignment for HVX vectors to avoid such complications.

llvm-svn: 260678
2016-02-12 14:47:38 +00:00
Benjamin Kramer e4dff62f64 The canonical way to XFAIL a test for all targets is XFAIL: *, not XFAIL:
Fix the lit bug that enabled this "feature" (empty triple is substring
of all possible target triples) and change the two outliers to use the
documented * syntax.

llvm-svn: 259799
2016-02-04 16:21:38 +00:00
Krzysztof Parzyszek 7b413c6c63 [Hexagon] Use general purpose registers to spill pred/mod registers into
Patch by Tobias Edler Von Koch.

llvm-svn: 258527
2016-01-22 19:15:58 +00:00
Krzysztof Parzyszek 2451c4835a Proper handling of diamond-like cases in if-conversion
If converter was somewhat careless about "diamond" cases, where there
was no join block, or in other words, where the true/false blocks did
not have analyzable branches. In such cases, it was possible for it to
remove (needed) branches, resulting in a loss of entire basic blocks.

Differential Revision: http://reviews.llvm.org/D16156

llvm-svn: 258310
2016-01-20 13:14:52 +00:00
Krzysztof Parzyszek 2a3b2f9841 [Hexagon] Generate CONST64 when optimizing for size in copy-to-combine
llvm-svn: 257891
2016-01-15 14:08:31 +00:00
Krzysztof Parzyszek 0d11212f00 [Hexagon] Use S2_lsr_i_r instead of S2_extractu to obtain upper halfword
llvm-svn: 257815
2016-01-14 21:59:22 +00:00
Krzysztof Parzyszek 237b96132d [Hexagon] Expand pseudo instruction Insert4
llvm-svn: 257771
2016-01-14 15:37:16 +00:00
Krzysztof Parzyszek b28ae10a16 [Hexagon] Handle branches with non-mbb operands
llvm-svn: 257768
2016-01-14 15:05:27 +00:00
Krzysztof Parzyszek a3c5d44437 [Hexagon] Do not insert non-phis before phis in bit simplification
llvm-svn: 257606
2016-01-13 15:48:18 +00:00
Krzysztof Parzyszek 1279881315 [Hexagon] Implement RDF-based post-RA optimizations
- Handle simple cases of register copies (what current RDF CP allows).
- Hexagon-specific dead code elimination: handles dead address updates
  in post-increment instructions.

llvm-svn: 257504
2016-01-12 19:09:01 +00:00
Krzysztof Parzyszek 21dc8bdd9e [Hexagon] Add PIC support
llvm-svn: 256025
2015-12-18 20:19:30 +00:00
Tobias Edler von Koch b51460cf86 [Hexagon] Make memcpy lowering thread-safe
This removes an unpleasant hack involving a global variable for special
lowering of certain memcpy calls. These are now lowered as intended in
EmitTargetCodeForMemcpy in the same way that other targets do it.

llvm-svn: 255785
2015-12-16 17:29:37 +00:00
Krzysztof Parzyszek 372bd80834 [Hexagon] Preprocess mapped instructions before lowering to MC
llvm-svn: 255653
2015-12-15 17:05:45 +00:00
Ron Lieberman e6540e244a [Hexagon] Add NewValueJump support for C4_cmpneq, C4_cmplte, C4_cmplteu
llvm-svn: 255027
2015-12-08 16:28:32 +00:00
Ron Lieberman c5e20a41a0 [Hexagon] Adding v60 test, vasr in particular.
llvm-svn: 254923
2015-12-07 18:52:39 +00:00
Cong Hou d97c100dc4 Replace all weight-based interfaces in MBB with probability-based interfaces, and update all uses of old interfaces.
(This is the second attempt to submit this patch. The first caused two assertion
 failures and was reverted. See https://llvm.org/bugs/show_bug.cgi?id=25687)

The patch in http://reviews.llvm.org/D13745 is broken into four parts:

1. New interfaces without functional changes (http://reviews.llvm.org/D13908).
2. Use new interfaces in SelectionDAG, while in other passes treat probabilities
as weights (http://reviews.llvm.org/D14361).
3. Use new interfaces in all other passes.
4. Remove old interfaces.

This patch is 3+4 above. In this patch, MBB won't provide weight-based
interfaces any more, which are totally replaced by probability-based ones.
The interface addSuccessor() is redesigned so that the default probability is
unknown. We allow unknown probabilities but don't allow using it together
with known probabilities in successor list. That is to say, we either have a
list of successors with all known probabilities, or all unknown
probabilities. In the latter case, we assume each successor has 1/N
probability where N is the number of successors. An assertion checks if the
user is attempting to add a successor with the disallowed mixed use as stated
above. This can help us catch many misuses.

All uses of weight-based interfaces are now updated to use probability-based
ones.


Differential revision: http://reviews.llvm.org/D14973

llvm-svn: 254377
2015-12-01 05:29:22 +00:00
Hans Wennborg 1dbaf67537 Revert r254348: "Replace all weight-based interfaces in MBB with probability-based interfaces, and update all uses of old interfaces."
and the follow-up r254356: "Fix a bug in MachineBlockPlacement that may cause assertion failure during BranchProbability construction."

Asserts were firing in Chromium builds. See PR25687.

llvm-svn: 254366
2015-12-01 03:49:42 +00:00
Cong Hou fa1917c673 Replace all weight-based interfaces in MBB with probability-based interfaces, and update all uses of old interfaces.
The patch in http://reviews.llvm.org/D13745 is broken into four parts:

1. New interfaces without functional changes (http://reviews.llvm.org/D13908).
2. Use new interfaces in SelectionDAG, while in other passes treat probabilities
as weights (http://reviews.llvm.org/D14361).
3. Use new interfaces in all other passes.
4. Remove old interfaces.

This patch is 3+4 above. In this patch, MBB won't provide weight-based
interfaces any more, which are totally replaced by probability-based ones.
The interface addSuccessor() is redesigned so that the default probability is
unknown. We allow unknown probabilities but don't allow using it together
with known probabilities in successor list. That is to say, we either have a
list of successors with all known probabilities, or all unknown
probabilities. In the latter case, we assume each successor has 1/N
probability where N is the number of successors. An assertion checks if the
user is attempting to add a successor with the disallowed mixed use as stated
above. This can help us catch many misuses.

All uses of weight-based interfaces are now updated to use probability-based
ones.


Differential revision: http://reviews.llvm.org/D14973

llvm-svn: 254348
2015-12-01 00:02:51 +00:00
Krzysztof Parzyszek 4eb6d4d1f2 [Hexagon] Hexagon V60 HVX intrinsic defintions
Author: Ron Lieberman <ronl@codeaurora.org>
llvm-svn: 254165
2015-11-26 16:54:33 +00:00
Krzysztof Parzyszek 207c13f254 Add hexagonv55 and hexagonv60 as recognized CPUs, make v60 the default
llvm-svn: 254089
2015-11-25 20:30:59 +00:00
Cong Hou 1938f2eb98 Let SelectionDAG start to use probability-based interface to add successors.
The patch in http://reviews.llvm.org/D13745 is broken into four parts:

1. New interfaces without functional changes.
2. Use new interfaces in SelectionDAG, while in other passes treat probabilities
as weights.
3. Use new interfaces in all other passes.
4. Remove old interfaces.

This the second patch above. In this patch SelectionDAG starts to use
probability-based interfaces in MBB to add successors but other MC passes are
still using weight-based interfaces. Therefore, we need to maintain correct
weight list in MBB even when probability-based interfaces are used. This is
done by updating weight list in probability-based interfaces by treating the
numerator of probabilities as weights. This change affects many test cases
that check successor weight values. I will update those test cases once this
patch looks good to you.


Differential revision: http://reviews.llvm.org/D14361

llvm-svn: 253965
2015-11-24 08:51:23 +00:00
Pete Cooper 67cf9a723b Revert "Change memcpy/memset/memmove to have dest and source alignments."
This reverts commit r253511.

This likely broke the bots in
http://lab.llvm.org:8011/builders/clang-ppc64-elf-linux2/builds/20202
http://bb.pgr.jp/builders/clang-3stage-i686-linux/builds/3787

llvm-svn: 253543
2015-11-19 05:56:52 +00:00
Pete Cooper 72bc23ef02 Change memcpy/memset/memmove to have dest and source alignments.
Note, this was reviewed (and more details are in) http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20151109/312083.html

These intrinsics currently have an explicit alignment argument which is
required to be a constant integer.  It represents the alignment of the
source and dest, and so must be the minimum of those.

This change allows source and dest to each have their own alignments
by using the alignment attribute on their arguments.  The alignment
argument itself is removed.

There are a few places in the code for which the code needs to be
checked by an expert as to whether using only src/dest alignment is
safe.  For those places, they currently take the minimum of src/dest
alignments which matches the current behaviour.

For example, code which used to read:
  call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 500, i32 8, i1 false)
will now read:
  call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 8 %dest, i8* align 8 %src, i32 500, i1 false)

For out of tree owners, I was able to strip alignment from calls using sed by replacing:
  (call.*llvm\.memset.*)i32\ [0-9]*\,\ i1 false\)
with:
  $1i1 false)

and similarly for memmove and memcpy.

I then added back in alignment to test cases which needed it.

A similar commit will be made to clang which actually has many differences in alignment as now
IRBuilder can generate different source/dest alignments on calls.

In IRBuilder itself, a new argument was added.  Instead of calling:
  CreateMemCpy(Dst, Src, getInt64(Size), DstAlign, /* isVolatile */ false)
you now call
  CreateMemCpy(Dst, Src, getInt64(Size), DstAlign, SrcAlign, /* isVolatile */ false)

There is a temporary class (IntegerAlignment) which takes the source alignment and rejects
implicit conversion from bool.  This is to prevent isVolatile here from passing its default
parameter to the source alignment.

Note, changes in future can now be made to codegen.  I didn't change anything here, but this
change should enable better memcpy code sequences.

Reviewed by Hal Finkel.

llvm-svn: 253511
2015-11-18 22:17:24 +00:00
Colin LeMahieu 13cc3ab785 [Hexagon] Fixing compound register printing and reenabling more tests.
llvm-svn: 252574
2015-11-10 00:51:56 +00:00
Colin LeMahieu b7a5f9fc29 [Hexagon] Fixing store instructions and reenabling a few more tests.
llvm-svn: 252561
2015-11-10 00:22:00 +00:00
Colin LeMahieu 8ab7e8e1b5 [Hexagon] Fixing load instruction parsing and reenabling tests.
llvm-svn: 252555
2015-11-10 00:02:27 +00:00
Colin LeMahieu 7cd0892729 [Hexagon] Enabling ASM parsing on Hexagon backend and adding instruction parsing tests. General updating of the code emission.
llvm-svn: 252443
2015-11-09 04:07:48 +00:00
Peter Collingbourne d4bff30370 DI: Reverse direction of subprogram -> function edge.
Previously, subprograms contained a metadata reference to the function they
described. Because most clients need to get or set a subprogram for a given
function rather than the other way around, this created unneeded inefficiency.

For example, many passes needed to call the function llvm::makeSubprogramMap()
to build a mapping from functions to subprograms, and the IR linker needed to
fix up function references in a way that caused quadratic complexity in the IR
linking phase of LTO.

This change reverses the direction of the edge by storing the subprogram as
function-level metadata and removing DISubprogram's function field.

Since this is an IR change, a bitcode upgrade has been provided.

Fixes PR23367. An upgrade script for textual IR for out-of-tree clients is
attached to the PR.

Differential Revision: http://reviews.llvm.org/D14265

llvm-svn: 252219
2015-11-05 22:03:56 +00:00
Krzysztof Parzyszek fdb7b693a7 Tail duplication can mix incompatible registers in phi nodes
Do not tail duplicate blocks where the successor has a phi node,
and the corresponding value in that phi node uses a subregister.

http://reviews.llvm.org/D13922

llvm-svn: 250877
2015-10-21 02:40:06 +00:00
Krzysztof Parzyszek ced9941cd4 [Hexagon] Bit-based instruction simplification
Analyze bit patterns of operands and values of instructions to perform
various simplifications, dead/redundant code elimination, etc.

llvm-svn: 250868
2015-10-20 22:57:13 +00:00
Krzysztof Parzyszek db8677067c [Hexagon] Delay emission of CFI instructions
Emit the CFI instructions after all code transformation have been done.
This will avoid any interference between CFI instructions and packetization.

llvm-svn: 250714
2015-10-19 17:46:01 +00:00
Krzysztof Parzyszek a7c5f0409c [Hexagon] Split double registers
llvm-svn: 250549
2015-10-16 20:38:54 +00:00
Krzysztof Parzyszek 5b7dd0cdf9 [Hexagon] Merge adjacent stores
llvm-svn: 250542
2015-10-16 19:43:56 +00:00
Krzysztof Parzyszek fb33824efd [Hexagon] Add an early if-conversion pass
llvm-svn: 249423
2015-10-06 15:49:14 +00:00
Cong Hou d40105d321 Update edge weights properly when merging blocks in if-conversion.
In if-conversion, there is a utility function MergeBlocks() that is used to merge blocks. However, when new edges are built in this function the edge weight is either not provided or not updated properly, leading to a modified CFG with incorrect edge weights. This patch corrects this issue.

Differential Revision: http://reviews.llvm.org/D12513

llvm-svn: 248030
2015-09-18 20:22:41 +00:00
Duncan P. N. Exon Smith 814b8e91c7 DI: Require subprogram definitions to be distinct
As a follow-up to r246098, require `DISubprogram` definitions
(`isDefinition: true`) to be 'distinct'.  Specifically, add an assembler
check, a verifier check, and bitcode upgrading logic to combat testcase
bitrot after the `DIBuilder` change.

While working on the testcases, I realized that
test/Linker/subprogram-linkonce-weak-odr.ll isn't relevant anymore.  Its
purpose was to check for a corner case in PR22792 where two subprogram
definitions match exactly and share the same metadata node.  The new
verifier check, requiring that subprogram definitions are 'distinct',
precludes that possibility.

I updated almost all the IR with the following script:

    git grep -l -E -e '= !DISubprogram\(.* isDefinition: true' |
    grep -v test/Bitcode |
    xargs sed -i '' -e 's/= \(!DISubprogram(.*, isDefinition: true\)/= distinct \1/'

Likely some variant of would work for out-of-tree testcases.

llvm-svn: 246327
2015-08-28 20:26:49 +00:00
Duncan P. N. Exon Smith 55ca964e94 DI: Disallow uniquable DICompileUnits
Since r241097, `DIBuilder` has only created distinct `DICompileUnit`s.
The backend is liable to start relying on that (if it hasn't already),
so make uniquable `DICompileUnit`s illegal and automatically upgrade old
bitcode.  This is a nice cleanup, since we can remove an unnecessary
`DenseSet` (and the associated uniquing info) from `LLVMContextImpl`.

Almost all the testcases were updated with this script:

    git grep -e '= !DICompileUnit' -l -- test |
    grep -v test/Bitcode |
    xargs sed -i '' -e 's,= !DICompileUnit,= distinct !DICompileUnit,'

I imagine something similar should work for out-of-tree testcases.

llvm-svn: 243885
2015-08-03 17:26:41 +00:00
Duncan P. N. Exon Smith ed013cd221 DI: Remove DW_TAG_arg_variable and DW_TAG_auto_variable
Remove the fake `DW_TAG_auto_variable` and `DW_TAG_arg_variable` tags,
using `DW_TAG_variable` in their place Stop exposing the `tag:` field at
all in the assembly format for `DILocalVariable`.

Most of the testcase updates were generated by the following sed script:

    find test/ -name "*.ll" -o -name "*.mir" |
    xargs grep -l 'DILocalVariable' |
    xargs sed -i '' \
      -e 's/tag: DW_TAG_arg_variable, //' \
      -e 's/tag: DW_TAG_auto_variable, //'

There were only a handful of tests in `test/Assembly` that I needed to
update by hand.

(Note: a follow-up could change `DILocalVariable::DILocalVariable()` to
set the tag to `DW_TAG_formal_parameter` instead of `DW_TAG_variable`
(as appropriate), instead of having that logic magically in the backend
in `DbgVariable`.  I've added a FIXME to that effect.)

llvm-svn: 243774
2015-07-31 18:58:39 +00:00
Krzysztof Parzyszek 921722049d [Hexagon] Generate MUX from conditional transfers when dot-new not possible
llvm-svn: 242711
2015-07-20 21:23:25 +00:00
Krzysztof Parzyszek 758744706a [Hexagon] Generate instructions for operations on predicate registers
Convert logical operations on general-purpose registers to the correspon-
ding operations on predicate registers.

llvm-svn: 242186
2015-07-14 19:30:21 +00:00
Krzysztof Parzyszek a0ecf07c0b [Hexagon] Generate "extract" instructions more aggressively
Generate extract instructions (via intrinsics) before the DAG combiner
folds shifts into unrecognizable forms.

llvm-svn: 242163
2015-07-14 17:07:24 +00:00
Krzysztof Parzyszek feaf7b8d35 [Hexagon] Add support for atomic RMW operations
llvm-svn: 241804
2015-07-09 14:51:21 +00:00
Krzysztof Parzyszek 79b2433e7c [Hexagon] Implement commoning of GetElementPtr instructions
llvm-svn: 241714
2015-07-08 19:22:28 +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
Colin LeMahieu d2158755eb [Hexagon] Printing packet brackets when asm printing and adding a number of tests that test packet brackets.
llvm-svn: 240051
2015-06-18 20:43:50 +00:00
Colin LeMahieu bb71f7d251 [Hexagon] Adding a number of other tests for min/max instructions and loading i1s.
llvm-svn: 239935
2015-06-17 20:29:33 +00:00
Colin LeMahieu ca8a82d5c7 [Hexagon] Adding some compare tests, fixing existing XFAILed tests, and removing mcpu=hexagonv4 since that's the minimum version anyway.
llvm-svn: 239917
2015-06-17 17:19:05 +00:00
Colin LeMahieu be99a02b1b [Hexagon] Adding MC ELF streamer and updating addend relocation test which shows correct ELF symbol.
llvm-svn: 239876
2015-06-17 03:06:16 +00:00
Colin LeMahieu ded2e90600 [Hexagon] Using readobj rather than objdump.
llvm-svn: 239770
2015-06-15 21:57:41 +00:00
Colin LeMahieu a071a8e5b6 [Hexagon] PC-relative offsets are relative to packet start rather than the offset of the relocation. Set relocation addend and check it's correct in the ELF.
llvm-svn: 239769
2015-06-15 21:52:13 +00:00
Colin LeMahieu b8575b14be [Hexagon] Adding some codegen tests and updating some to match spec.
llvm-svn: 239690
2015-06-13 21:46:39 +00:00
Colin LeMahieu 79ec06525e [Hexagon] Making intrinsic tests agnostic to register allocation. Narrowing intrinsic parameters to appropriate width.
llvm-svn: 239634
2015-06-12 19:57:32 +00:00
Colin LeMahieu 1e9d1d768c [Hexagon] Adding decoders for signed operands and ensuring all signed operand types disassemble correctly.
llvm-svn: 239477
2015-06-10 16:52:32 +00:00
Colin LeMahieu 6aca6f0be5 [Hexagon] Adding functionality for searching for compound instruction pairs. Compound instructions reduce slot resource requirements freeing those packet slots up for more instructions.
llvm-svn: 239307
2015-06-08 16:34:47 +00:00
Colin LeMahieu be8c453d58 [Hexagon] Reapply r239097 with tests corrected for shuffling and duplexing.
llvm-svn: 239161
2015-06-05 16:00:11 +00:00
Colin LeMahieu 348efdbd36 Shouldn't be XFAIL'ed.
llvm-svn: 239103
2015-06-04 21:49:43 +00:00
Colin LeMahieu c40be85adc Revert r239095 incorrect test tree.
llvm-svn: 239102
2015-06-04 21:32:42 +00:00
Colin LeMahieu fc52c11d80 [Hexagon] Adding functionality for duplexing. Duplexing is a way to compress commonly used pairs of instructions in order to reduce code size. The test case duplex.ll normally would be 8 bytes, assign register to 0 and jump to link register. After duplexing this is only 4 bytes. This also tests the HexagonMCShuffler code path which is used to make sure duplexed instructions still follow slot requirements.
llvm-svn: 239095
2015-06-04 21:16:16 +00:00
Colin LeMahieu 1ce7a11c9c [Hexagon] Test doesn't work on all platforms. At any rate the uninitialized variable issue was fixed. Removing re-registering ASM backend.
llvm-svn: 238949
2015-06-03 18:00:45 +00:00
Colin LeMahieu a675077310 [Hexagon] Reapply 238772 OSABI was not correctly set, added empty_elf test to make sure it is.
llvm-svn: 238947
2015-06-03 17:34:16 +00:00
Rafael Espindola b5815b4738 Revert "[Hexagon] Adding basic ELF relocation generation and testing advanced relaxation codepath."
This reverts commit r238748.

It broke the msan bot:

http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/4372/steps/check-llvm%20msan/logs/stdio

llvm-svn: 238772
2015-06-01 19:20:47 +00:00
Colin LeMahieu a739a4b3c7 [Hexagon] Adding basic ELF relocation generation and testing advanced relaxation codepath.
llvm-svn: 238748
2015-06-01 14:51:26 +00:00
Colin LeMahieu 68d967d92e [Hexagon] Disassembling, printing, and emitting instructions a whole-bundle at a time which is the semantic unit for Hexagon. Fixing tests to use the new format. Disabling tests in the direct object emission path for a followup patch.
llvm-svn: 238556
2015-05-29 14:44:13 +00:00
Brendon Cahoon 7c8a3b0ef6 [Hexagon] Generate hardware loop for a vectorized loop
The induction variable in the vectorized loop wasn't
recognized properly, so a hardware loop wasn't generated.

Differential Revision: http://reviews.llvm.org/D9722

llvm-svn: 237388
2015-05-14 20:36:19 +00:00
Brendon Cahoon 485bea74ad [Hexagon] Remove dead constant assignment in hardware loop pass
After converting a loop to a hardware loop, the pass should remove
any unnecessary instructions from the old compare-and-branch
code. This patch removes a dead constant assignment that was
used in the compare instruction.

Differential Revision: http://reviews.llvm.org/D9720

llvm-svn: 237373
2015-05-14 17:31:40 +00:00
Brendon Cahoon 9376e9998e [Hexagon] Check for underflow/wrap in hardware loop pass
If the loop trip count may underflow or wrap, the compiler should
not generate a hardware loop since the trip count will be
incorrect.

llvm-svn: 237365
2015-05-14 14:15:08 +00:00
Brendon Cahoon d11c92a41c [Hexagon] Generate loop1 instruction for nested loops
loop1 is for the outer loop and loop0 is for the inner loop.

Differential Revision: http://reviews.llvm.org/D9680

llvm-svn: 237266
2015-05-13 17:56:03 +00:00
Brendon Cahoon 254e656862 [Hexagon] Generate hardware loop when loop has a critical edge
The hardware loop pass should try to generate a hardware loop
instruction when the original loop has a critical edge.

Differential Revision: http://reviews.llvm.org/D9678

llvm-svn: 237258
2015-05-13 14:54:24 +00:00
Sundeep Kushwaha 83a4039c17 [PATCH] [HEXAGON] Add a test program to verify calling convention
for large struct return by value.

Differential Revision: http://reviews.llvm.org/D9709

llvm-svn: 237170
2015-05-12 20:13:10 +00:00
Brendon Cahoon bece8edcdd [Hexagon] Generate more hardware loops
Refactored parts of the hardware loop pass to generate
more. Also, added more tests.

Differential Revision: http://reviews.llvm.org/D9568

llvm-svn: 236896
2015-05-08 20:18:21 +00:00
Brendon Cahoon df43e68629 [Hexagon] Update AnalyzeBranch, etc target hooks
Improved the AnalyzeBranch, InsertBranch, and RemoveBranch
functions in order to handle more of our branch instructions.
This requires changes to analyzeCompare and PredicateInstructions.
Specifically, we've added support for new value compare jumps,
improved handling of endloop, added more compare instructions,
and improved support for predicate instructions.

Differential Revision: http://reviews.llvm.org/D9559

llvm-svn: 236876
2015-05-08 16:16:29 +00:00
Duncan P. N. Exon Smith a9308c49ef IR: Give 'DI' prefix to debug info metadata
Finish off PR23080 by renaming the debug info IR constructs from `MD*`
to `DI*`.  The last of the `DIDescriptor` classes were deleted in
r235356, and the last of the related typedefs removed in r235413, so
this has all baked for about a week.

Note: If you have out-of-tree code (like a frontend), I recommend that
you get everything compiling and tests passing with the *previous*
commit before updating to this one.  It'll be easier to keep track of
what code is using the `DIDescriptor` hierarchy and what you've already
updated, and I think you're extremely unlikely to insert bugs.  YMMV of
course.

Back to *this* commit: I did this using the rename-md-di-nodes.sh
upgrade script I've attached to PR23080 (both code and testcases) and
filtered through clang-format-diff.py.  I edited the tests for
test/Assembler/invalid-generic-debug-node-*.ll by hand since the columns
were off-by-three.  It should work on your out-of-tree testcases (and
code, if you've followed the advice in the previous paragraph).

Some of the tests are in badly named files now (e.g.,
test/Assembler/invalid-mdcompositetype-missing-tag.ll should be
'dicompositetype'); I'll come back and move the files in a follow-up
commit.

llvm-svn: 236120
2015-04-29 16:38:44 +00:00
Brendon Cahoon 55bdeb7bc7 [Hexagon] Use constant extenders to fix up hardware loops
Use a loop instruction with a constant extender for a hardware
loop instruction that is too far away from the start of the loop.
This is cheaper than changing the SA register value.

Differential Revision: http://reviews.llvm.org/D9262

llvm-svn: 235882
2015-04-27 14:16:43 +00:00
Sundeep Kushwaha 5d41a6992d [PATCH] [Hexagon] Adding a test case for calling convention.
http://reviews.llvm.org/D9241

llvm-svn: 235754
2015-04-24 19:22:02 +00:00
Krzysztof Parzyszek 876a19d855 [Hexagon] Shrink-wrap stack frame (Hexagon-specific)
llvm-svn: 235603
2015-04-23 16:05:39 +00:00
Krzysztof Parzyszek a17cebd219 [Hexagon] Add testcases for stack alignment and variable-sized objects
llvm-svn: 235602
2015-04-23 15:12:49 +00:00
Krzysztof Parzyszek 952d951418 [Hexagon] Some cleanup of instruction selection code
llvm-svn: 235552
2015-04-22 21:17:00 +00:00
Krzysztof Parzyszek cd97c985c7 [Hexagon] Use A2_tfrsi for constant pool and jump table addresses
llvm-svn: 235535
2015-04-22 18:25:53 +00:00
Krzysztof Parzyszek 499bc5faa1 [Hexagon] Patterns for frame index with offset for isel
llvm-svn: 235418
2015-04-21 21:28:03 +00:00
David Blaikie 23af64846f [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction
See r230786 and r230794 for similar changes to gep and load
respectively.

Call is a bit different because it often doesn't have a single explicit
type - usually the type is deduced from the arguments, and just the
return type is explicit. In those cases there's no need to change the
IR.

When that's not the case, the IR usually contains the pointer type of
the first operand - but since typed pointers are going away, that
representation is insufficient so I'm just stripping the "pointerness"
of the explicit type away.

This does make the IR a bit weird - it /sort of/ reads like the type of
the first operand: "call void () %x(" but %x is actually of type "void
()*" and will eventually be just of type "ptr". But this seems not too
bad and I don't think it would benefit from repeating the type
("void (), void () * %x(" and then eventually "void (), ptr %x(") as has
been done with gep and load.

This also has a side benefit: since the explicit type is no longer a
pointer, there's no ambiguity between an explicit type and a function
that returns a function pointer. Previously this case needed an explicit
type (eg: a function returning a void() function was written as
"call void () () * @x(" rather than "call void () * @x(" because of the
ambiguity between a function returning a pointer to a void() function
and a function returning void).

No ambiguity means even function pointer return types can just be
written alone, without writing the whole function's type.

This leaves /only/ the varargs case where the explicit type is required.

Given the special type syntax in call instructions, the regex-fu used
for migration was a bit more involved in its own unique way (as every
one of these is) so here it is. Use it in conjunction with the apply.sh
script and associated find/xargs commands I've provided in rr230786 to
migrate your out of tree tests. Do let me know if any of this doesn't
cover your cases & we can iterate on a more general script/regexes to
help others with out of tree tests.

About 9 test cases couldn't be automatically migrated - half of those
were functions returning function pointers, where I just had to manually
delete the function argument types now that we didn't need an explicit
function type there. The other half were typedefs of function types used
in calls - just had to manually drop the * from those.

import fileinput
import sys
import re

pat = re.compile(r'((?:=|:|^|\s)call\s(?:[^@]*?))(\s*$|\s*(?:(?:\[\[[a-zA-Z0-9_]+\]\]|[@%](?:(")?[\\\?@a-zA-Z0-9_.]*?(?(3)"|)|{{.*}}))(?:\(|$)|undef|inttoptr|bitcast|null|asm).*$)')
addrspace_end = re.compile(r"addrspace\(\d+\)\s*\*$")
func_end = re.compile("(?:void.*|\)\s*)\*$")

def conv(match, line):
  if not match or re.search(addrspace_end, match.group(1)) or not re.search(func_end, match.group(1)):
    return line
  return line[:match.start()] + match.group(1)[:match.group(1).rfind('*')].rstrip() + match.group(2) + line[match.end():]

for line in sys.stdin:
  sys.stdout.write(conv(re.search(pat, line), line))

llvm-svn: 235145
2015-04-16 23:24:18 +00:00
Jan Vesely ffcd968647 Revert revisions r234755, r234759, r234760
Revert "Remove default in fully-covered switch (to fix Clang -Werror -Wcovered-switch-default)"
Revert "R600: Add carry and borrow instructions. Use them to implement UADDO/USUBO"
Revert "LegalizeDAG: Try to use Overflow operations when expanding ADD/SUB"

Using overflow operations fails CodeGen/Generic/2011-07-07-ScheduleDAGCrash.ll
on hexagon, nvptx, and r600. Revert while I investigate.

llvm-svn: 234768
2015-04-13 17:47:15 +00:00
Krzysztof Parzyszek a46c36b8f4 Allow memory intrinsics to be tail calls
llvm-svn: 234764
2015-04-13 17:16:45 +00:00
Jan Vesely a835555e40 LegalizeDAG: Try to use Overflow operations when expanding ADD/SUB
v2: consider BooleanContents when processing overflow

Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
Reviewers: resistor, jholewinsky (nvidia parts)
Differential Revision: http://reviews.llvm.org/D6340

llvm-svn: 234755
2015-04-13 15:32:01 +00:00
Krzysztof Parzyszek c05dff1792 Expand MUX instructions early on Hexagon
This time with all files included.

llvm-svn: 233696
2015-03-31 13:35:12 +00:00
Krzysztof Parzyszek 8c4fd2bdeb Revert 233694. Weak SVN-fu.
llvm-svn: 233695
2015-03-31 13:32:32 +00:00
Krzysztof Parzyszek 261d62c862 Expand MUX instructions early on Hexagon
llvm-svn: 233694
2015-03-31 13:29:17 +00:00
Krzysztof Parzyszek 421133470f [Hexagon] Add support for vector instructions
llvm-svn: 232728
2015-03-19 16:33:08 +00:00
Krzysztof Parzyszek 47ab1f2007 [Hexagon] Intrinsics for circular and bit-reversed loads and stores
llvm-svn: 232645
2015-03-18 16:23:44 +00:00
Krzysztof Parzyszek 78cc36fed7 [Hexagon] Handle ENDLOOP0 in InsertBranch and RemoveBranch
llvm-svn: 232643
2015-03-18 15:56:43 +00:00
Krzysztof Parzyszek d5972bdaf8 Missed testcase for r232577
llvm-svn: 232578
2015-03-18 00:44:46 +00:00
David Blaikie f72d05bc7b [opaque pointer type] Add textual IR support for explicit type parameter to gep operator
Similar to gep (r230786) and load (r230794) changes.

Similar migration script can be used to update test cases, which
successfully migrated all of LLVM and Polly, but about 4 test cases
needed manually changes in Clang.

(this script will read the contents of stdin and massage it into stdout
- wrap it in the 'apply.sh' script shown in previous commits + xargs to
apply it over a large set of test cases)

import fileinput
import sys
import re

rep = re.compile(r"(getelementptr(?:\s+inbounds)?\s*\()((<\d*\s+x\s+)?([^@]*?)(|\s*addrspace\(\d+\))\s*\*(?(3)>)\s*)(?=$|%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|zeroinitializer|<|\[\[[a-zA-Z]|\{\{)", re.MULTILINE | re.DOTALL)

def conv(match):
  line = match.group(1)
  line += match.group(4)
  line += ", "
  line += match.group(2)
  return line

line = sys.stdin.read()
off = 0
for match in re.finditer(rep, line):
  sys.stdout.write(line[off:match.start()])
  sys.stdout.write(conv(match))
  off = match.end()
sys.stdout.write(line[off:])

llvm-svn: 232184
2015-03-13 18:20:45 +00:00
Krzysztof Parzyszek a29622a8c5 Remove unused complex patterns for addressing modes on Hexagon.
llvm-svn: 232057
2015-03-12 16:44:50 +00:00
Colin LeMahieu fa79110cc7 [Hexagon] Removing unused patterns.
llvm-svn: 231723
2015-03-09 23:08:46 +00:00
Colin LeMahieu 2efa2d01d7 [Hexagon] Reapply r231699. Remove assumption that second operand is an immediate when checking if A2_tfrsi is combinable.
llvm-svn: 231710
2015-03-09 21:48:13 +00:00
Colin LeMahieu ed853397c6 [Hexagon] Reverting r231699
llvm-svn: 231703
2015-03-09 21:19:02 +00:00
Colin LeMahieu 8c4dfaa13b [Hexagon] Updating constant set to simpler versions.
llvm-svn: 231699
2015-03-09 20:33:12 +00:00
Colin LeMahieu 96bfaa9766 [Hexagon] Eliminating immediate condition set.
llvm-svn: 231693
2015-03-09 19:57:18 +00:00
Duncan P. N. Exon Smith e274180f0e DebugInfo: Move new hierarchy into place
Move the specialized metadata nodes for the new debug info hierarchy
into place, finishing off PR22464.  I've done bootstraps (and all that)
and I'm confident this commit is NFC as far as DWARF output is
concerned.  Let me know if I'm wrong :).

The code changes are fairly mechanical:

  - Bumped the "Debug Info Version".
  - `DIBuilder` now creates the appropriate subclass of `MDNode`.
  - Subclasses of DIDescriptor now expect to hold their "MD"
    counterparts (e.g., `DIBasicType` expects `MDBasicType`).
  - Deleted a ton of dead code in `AsmWriter.cpp` and `DebugInfo.cpp`
    for printing comments.
  - Big update to LangRef to describe the nodes in the new hierarchy.
    Feel free to make it better.

Testcase changes are enormous.  There's an accompanying clang commit on
its way.

If you have out-of-tree debug info testcases, I just broke your build.

  - `upgrade-specialized-nodes.sh` is attached to PR22564.  I used it to
    update all the IR testcases.
  - Unfortunately I failed to find way to script the updates to CHECK
    lines, so I updated all of these by hand.  This was fairly painful,
    since the old CHECKs are difficult to reason about.  That's one of
    the benefits of the new hierarchy.

This work isn't quite finished, BTW.  The `DIDescriptor` subclasses are
almost empty wrappers, but not quite: they still have loose casting
checks (see the `RETURN_FROM_RAW()` macro).  Once they're completely
gutted, I'll rename the "MD" classes to "DI" and kill the wrappers.  I
also expect to make a few schema changes now that it's easier to reason
about everything.

llvm-svn: 231082
2015-03-03 17:24:31 +00:00
David Blaikie a79ac14fa6 [opaque pointer type] Add textual IR support for explicit type parameter to load instruction
Essentially the same as the GEP change in r230786.

A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)

import fileinput
import sys
import re

pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")

for line in sys.stdin:
  sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7649

llvm-svn: 230794
2015-02-27 21:17:42 +00:00
David Blaikie 79e6c74981 [opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
One of several parallel first steps to remove the target type of pointers,
replacing them with a single opaque pointer type.

This adds an explicit type parameter to the gep instruction so that when the
first parameter becomes an opaque pointer type, the type to gep through is
still available to the instructions.

* This doesn't modify gep operators, only instructions (operators will be
  handled separately)

* Textual IR changes only. Bitcode (including upgrade) and changing the
  in-memory representation will be in separate changes.

* geps of vectors are transformed as:
    getelementptr <4 x float*> %x, ...
  ->getelementptr float, <4 x float*> %x, ...
  Then, once the opaque pointer type is introduced, this will ultimately look
  like:
    getelementptr float, <4 x ptr> %x
  with the unambiguous interpretation that it is a vector of pointers to float.

* address spaces remain on the pointer, not the type:
    getelementptr float addrspace(1)* %x
  ->getelementptr float, float addrspace(1)* %x
  Then, eventually:
    getelementptr float, ptr addrspace(1) %x

Importantly, the massive amount of test case churn has been automated by
same crappy python code. I had to manually update a few test cases that
wouldn't fit the script's model (r228970,r229196,r229197,r229198). The
python script just massages stdin and writes the result to stdout, I
then wrapped that in a shell script to handle replacing files, then
using the usual find+xargs to migrate all the files.

update.py:
import fileinput
import sys
import re

ibrep = re.compile(r"(^.*?[^%\w]getelementptr inbounds )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
normrep = re.compile(       r"(^.*?[^%\w]getelementptr )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")

def conv(match, line):
  if not match:
    return line
  line = match.groups()[0]
  if len(match.groups()[5]) == 0:
    line += match.groups()[2]
  line += match.groups()[3]
  line += ", "
  line += match.groups()[1]
  line += "\n"
  return line

for line in sys.stdin:
  if line.find("getelementptr ") == line.find("getelementptr inbounds"):
    if line.find("getelementptr inbounds") != line.find("getelementptr inbounds ("):
      line = conv(re.match(ibrep, line), line)
  elif line.find("getelementptr ") != line.find("getelementptr ("):
    line = conv(re.match(normrep, line), line)
  sys.stdout.write(line)

apply.sh:
for name in "$@"
do
  python3 `dirname "$0"`/update.py < "$name" > "$name.tmp" && mv "$name.tmp" "$name"
  rm -f "$name.tmp"
done

The actual commands:
From llvm/src:
find test/ -name *.ll | xargs ./apply.sh
From llvm/src/tools/clang:
find test/ -name *.mm -o -name *.m -o -name *.cpp -o -name *.c | xargs -I '{}' ../../apply.sh "{}"
From llvm/src/tools/polly:
find test/ -name *.ll | xargs ./apply.sh

After that, check-all (with llvm, clang, clang-tools-extra, lld,
compiler-rt, and polly all checked out).

The extra 'rm' in the apply.sh script is due to a few files in clang's test
suite using interesting unicode stuff that my python script was throwing
exceptions on. None of those files needed to be migrated, so it seemed
sufficient to ignore those cases.

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7636

llvm-svn: 230786
2015-02-27 19:29:02 +00:00
Colin LeMahieu 955c4ff9c3 [Hexagon] Factoring classes out of store patterns.
llvm-svn: 228602
2015-02-09 20:33:46 +00:00
Colin LeMahieu de68b66b4d [Hexagon] Simplifying and formatting several patterns. Changing a pattern multiply to be expanded.
llvm-svn: 228347
2015-02-05 21:13:25 +00:00
Colin LeMahieu c0434466e4 [Hexagon] Adding encoding information for absolute-reg mode stores. Xfailing a test until constant extenders are correctly put in the same packet.
llvm-svn: 228158
2015-02-04 17:52:06 +00:00
Colin LeMahieu cd9cb023d7 [Hexagon] Converting XTYPE/SHIFT intrinsics. Cleaning out old intrinsic patterns and updating tests.
llvm-svn: 228026
2015-02-03 20:40:52 +00:00
Colin LeMahieu cf7248bcaf [Hexagon] Updating XTYPE/PRED intrinsics.
llvm-svn: 228019
2015-02-03 19:43:59 +00:00
Colin LeMahieu e5daf3abfe [Hexagon] Updating XTYPE/PERM intrinsics.
llvm-svn: 228015
2015-02-03 19:36:59 +00:00
Colin LeMahieu 99cc7c1070 [Hexagon] Adding missing vector multiply instruction encodings. Converting multiply intrinsics and updating tests.
llvm-svn: 228010
2015-02-03 19:15:11 +00:00
Colin LeMahieu a6632452be [Hexagon] Converting complex number intrinsics and adding tests.
llvm-svn: 227995
2015-02-03 18:16:28 +00:00
Colin LeMahieu cdba4e1bcc [Hexagon] Adding vector intrinsics for alu32/alu and xtype/alu.
llvm-svn: 227993
2015-02-03 18:01:45 +00:00
Colin LeMahieu 1610730faf [Hexagon] Deleting old variants of intrinsics and adding missing tests.
llvm-svn: 227474
2015-01-29 17:26:56 +00:00
Colin LeMahieu 860210bc49 [Hexagon] Adding CR intrinsic tests.
llvm-svn: 227463
2015-01-29 16:55:37 +00:00
Colin LeMahieu a749b3ee6a [Hexagon] Adding XTYPE/PRED intrinsic tests. Converting predicate types to i32 instead of i1.
llvm-svn: 227457
2015-01-29 16:08:43 +00:00
Colin LeMahieu 4379d10273 [Hexagon] Updating several V5 intrinsics and adding FP tests.
llvm-svn: 227379
2015-01-28 22:08:16 +00:00