1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-10-30 07:22:55 +01:00
Commit Graph

97602 Commits

Author SHA1 Message Date
Matt Arsenault
97b8219456 Fix missing C++ mode comment
llvm-svn: 194339
2013-11-10 01:03:59 +00:00
Matt Arsenault
8e8180422b Use variable for register name in test
llvm-svn: 194338
2013-11-10 00:57:17 +00:00
Reed Kotler
0e6ffc6bfa Mostly finish up constant islands port for Mips for load constants.
Still need to finish the branch part. Still lots more review of the code,
clean up and testing. 

llvm-svn: 194337
2013-11-10 00:09:26 +00:00
Benjamin Kramer
1a2fc10168 Remove some unnecessary temporary strings.
llvm-svn: 194335
2013-11-09 22:48:13 +00:00
Logan Chien
1eab705170 [arm] Refine ARMBuildAttrs.h.
This commit cleans up some comments in ARMBuildAttrs.h.
Besides, this commit fixes an error related to AllowWMMXv1
and AllowWMMXv2 (although they are not used currently.)

llvm-svn: 194327
2013-11-09 14:16:52 +00:00
Chandler Carruth
62e299ec37 [PM] Start sketching out the new module and function pass manager.
This is still just a skeleton. I'm trying to pull together the
experimentation I've done into committable chunks, and this is the first
coherent one. Others will follow in hopefully short order that move this
more toward a useful initial implementation. I still expect the design
to continue evolving in small ways as I work through the different
requirements and features needed here though.

Keep in mind, all of this is off by default.

Currently, this mostly exercises the use of a polymorphic smart pointer
and templates to hide the polymorphism for the pass manager from the
pass implementation. The next step will be more significant, adding the
first framework of analysis support.

llvm-svn: 194325
2013-11-09 13:09:08 +00:00
Chandler Carruth
f2e7a23acb Move the old pass manager infrastructure into a legacy namespace and
give the files a legacy prefix in the right directory. Use forwarding
headers in the old locations to paper over the name change for most
clients during the transitional period.

No functionality changed here! This is just clearing some space to
reduce renaming churn later on with a new system.

Even when the new stuff starts to go in, it is going to be hidden behind
a flag and off-by-default as it is still WIP and under development.

This patch is specifically designed so that very little out-of-tree code
has to change. I'm going to work as hard as I can to keep that the case.
Only direct forward declarations of the PassManager class are impacted
by this change.

llvm-svn: 194324
2013-11-09 12:26:54 +00:00
Filip Pizlo
821ddf0c78 This exposes the new calling conventions (WebKit_JS and AnyReg) via the C API by adding them to the enumeration in Core.h.
llvm-svn: 194323
2013-11-09 06:00:03 +00:00
Chandler Carruth
17436ff36f Switch to allow implicit construction. In many cases, we're wrapping
a derived type and this makes it *much* easier to write this code.

llvm-svn: 194321
2013-11-09 05:55:03 +00:00
Chandler Carruth
04f0969715 Test the polymorphic behavior of this utility.
llvm-svn: 194320
2013-11-09 04:58:13 +00:00
Chandler Carruth
d01da74a3a Use something really explicit to test "move semantics" on builds without
r-value references. I still want to test that when we have them,
llvm_move is actually a move.

Have I mentioned that I really want to move to C++11? ;]

llvm-svn: 194318
2013-11-09 04:49:27 +00:00
Chandler Carruth
2d15bb84b6 Add the critically missing 'clone' method. =]
Clang managed to never instantiate the copy constructor. Added tests to
ensure this path is tested.

We could still use tests for the polymorphic nature. Those coming up
next.

llvm-svn: 194317
2013-11-09 04:32:34 +00:00
Chandler Carruth
034b3fa859 Move the test type out of the function and into the anonymous namespace
to fix C++98 builds.

llvm-svn: 194316
2013-11-09 04:09:50 +00:00
Chandler Carruth
8d866a1fb5 Add a polymorphic_ptr<T> smart pointer data type. It's a somewhat silly
unique ownership smart pointer which is *deep* copyable by assuming it
can call a T::clone() method to allocate a copy of the owned data.

This is mostly useful with containers or other collections of uniquely
owned data in C++98 where they *might* copy. With C++11 we can likely
remove this in favor of move-only types and containers wrapped around
those types.

llvm-svn: 194315
2013-11-09 04:06:02 +00:00
NAKAMURA Takumi
ba34a4d189 include/llvm/CodeGen/PBQP: Update @param(s) in comments. [-Wdocumentation]
llvm-svn: 194314
2013-11-09 03:54:05 +00:00
NAKAMURA Takumi
dc501161f9 Fix whitespace.
llvm-svn: 194313
2013-11-09 03:53:55 +00:00
Lang Hames
be91a1d947 Re-apply r194300 with fixes for warnings.
llvm-svn: 194311
2013-11-09 03:08:56 +00:00
Akira Hatanaka
601f7aebe8 [mips] Make sure there is a chain edge dependency between loads that read
formal arguments on the stack and stores created afterwards. We need this to
ensure tail call optimized function calls do not write over the argument area
of the stack before it is read out.
 

llvm-svn: 194309
2013-11-09 02:38:51 +00:00
Nick Lewycky
ebeaea0192 Revert r194300 which broke the build.
llvm-svn: 194308
2013-11-09 02:01:25 +00:00
Juergen Ributzka
a748d55906 [Stackmap] Materialize the jump address within the patchpoint noop slide.
This patch moves the jump address materialization inside the noop slide. This
enables patching of the materialization itself or its complete removal. This
patch also adds the ability to define scratch registers that can be used safely
by the code called from the patchpoint intrinsic. At least one scratch register
is required, because that one is used for the materialization of the jump
address. This patch depends on D2009.

Differential Revision: http://llvm-reviews.chandlerc.com/D2074

Reviewed by Andy

llvm-svn: 194306
2013-11-09 01:51:33 +00:00
Adrian Prantl
155ecd9c23 Revert "Move copying of global initializers below the cloning of functions."
This would cause internal symbols that are only referenced by global initializers to be removed.

This reverts commit 194219.

llvm-svn: 194304
2013-11-09 00:43:18 +00:00
Adrian Prantl
20c6a8bef1 Revert "Run clang-format on file."
This reverts commit 194219.

llvm-svn: 194303
2013-11-09 00:43:12 +00:00
Lang Hames
e3c935f4ab Rewrite the PBQP graph data structure.
The new graph structure replaces the node and edge linked lists with vectors.
Free lists (well, free vectors) are used for fast insertion/deletion.

The ultimate aim is to make PBQP graphs cheap to clone. The motivation is that
the PBQP solver destructively consumes input graphs while computing a solution,
forcing the graph to be fully reconstructed for each round of PBQP. This
imposes a high cost on large functions, which often require several rounds of
solving/spilling to find a final register allocation. If we can cheaply clone
the PBQP graph and incrementally update it between rounds then hopefully we can
reduce this cost. Further, once we begin pooling matrix/vector values (future
work), we can cache some PBQP solver metadata and share it between cloned
graphs, allowing the PBQP solver to re-use some of the computation done in
earlier rounds.

For now this is just a data structure update. The allocator and solver still
use the graph the same way as before, fully reconstructing it between each
round. I expect no material change from this update, although it may change
the iteration order of the nodes, causing ties in the solver to break in
different directions, and this could perturb the generated allocations
(hopefully in a completely benign way).

Thanks very much to Arnaud Allard de Grandmaison for encouraging me to get back
to work on this, and for a lot of discussion and many useful PBQP test cases.

llvm-svn: 194300
2013-11-09 00:14:07 +00:00
Juergen Ributzka
f27436b708 [Stackmap] Add AnyReg calling convention support for patchpoint intrinsic.
The idea of the AnyReg Calling Convention is to provide the call arguments in
registers, but not to force them to be placed in a paticular order into a
specified set of registers. Instead it is up tp the register allocator to assign
any register as it sees fit. The same applies to the return value (if
applicable).

Differential Revision: http://llvm-reviews.chandlerc.com/D2009

Reviewed by Andy

llvm-svn: 194293
2013-11-08 23:28:16 +00:00
Pedro Artigas
295bb9b63d increase the accuracy of register pressure computation in the presence of dead definitions by using live intervals, if available, to identify dead definitions and proceed accordingly.
llvm-svn: 194286
2013-11-08 22:46:28 +00:00
Jim Grosbach
b8435149f5 X86: Assembly files with .cfi_cfa_def shouldn't hit llvm_unreachable()
On darwin, when trying to create compact unwind info, a .cfi_cfa_def
directive would case an llvm_unreachable() to be hit. Back off when we
see this directive and generate the regular DWARF style eh_frame.

rdar://15406518

llvm-svn: 194285
2013-11-08 22:33:06 +00:00
Lang Hames
86f9f3b0af Fix some minor issues with r194282 to get the tree healthy again.
llvm-svn: 194284
2013-11-08 22:30:52 +00:00
Lang Hames
80f55165fb Add a method to get the object-file appropriate stack map section.
Thanks to Eric Christopher for the tips on the appropriate way to do this.

llvm-svn: 194282
2013-11-08 22:14:49 +00:00
Hal Finkel
b485e0c406 Remove dead code from LoopUnswitch
LoopUnswitch's code simplification routine has logic to convert conditional
branches into unconditional branches, after unswitching makes the condition
constant, and then remove any blocks that renders dead. Unfortunately, this
code is dead, currently broken, and furthermore, has never been alive (at least
as far back at 2006).

No functionality change intended.

llvm-svn: 194277
2013-11-08 19:58:21 +00:00
Arnaud A. de Grandmaison
12a0cc8ff5 Revert "CalculateSpillWeights does not need to be a pass"
Temporarily revert my previous commit until I understand why it breaks 3 target tests.

llvm-svn: 194272
2013-11-08 18:19:19 +00:00
Quentin Colombet
6833715219 [VirtRegMap] Fix for PR17825. Do not ignore noreturn definitions when setting
isPhysRegUsed if the unwind information is required.
Indeed, the runtime may need a correct stack to be able to unwind the call.

llvm-svn: 194271
2013-11-08 18:14:17 +00:00
Richard Barton
23f9645b7b Make PrintAsmOperand call to the superclass to handle 'n' and 'c' operand modifiers.
llvm-svn: 194270
2013-11-08 18:09:57 +00:00
Arnaud A. de Grandmaison
926576cff3 CalculateSpillWeights does not need to be a pass
Based on discussions with Lang Hames and Jakob Stoklund Olesen at the hacker's lab, and in the light of upcoming work on the PBQP register allocator, it was though that CalcSpillWeights does not need to be a pass. This change will enable to customize / tune the spill weight computation depending on the allocator.

Update the documentation style while there.

No functionnal change.

llvm-svn: 194269
2013-11-08 17:56:29 +00:00
Jordan Rose
2c5904848b Add ImmutableSet profiling info for 'bool'.
Useful for tri-state maps: true, false, and "no data yet".

llvm-svn: 194266
2013-11-08 17:23:49 +00:00
Tim Northover
e68673eeb6 ARM: fold prologue/epilogue sp updates into push/pop for code size
ARM prologues usually look like:
    push {r7, lr}
    sub sp, sp, #4

If code size is extremely important, this can be optimised to the single
instruction:
    push {r6, r7, lr}

where we don't actually care about the contents of r6, but pushing it subtracts
4 from sp as a side effect.

This should implement such a conversion, predicated on the "minsize" function
attribute (-Oz) since I've yet to find any code it actually makes faster.

llvm-svn: 194264
2013-11-08 17:18:07 +00:00
Artyom Skrobov
1890ff3a6d [ARM] Handling for coprocessor instructions that are undefined starting from ARMv8 (Thumb encodings)
llvm-svn: 194263
2013-11-08 16:25:50 +00:00
Artyom Skrobov
d49073b56a [ARM] Handling for coprocessor instructions that are undefined starting from ARMv8 (ARM encodings)
llvm-svn: 194262
2013-11-08 16:17:14 +00:00
Artyom Skrobov
ef73b63766 [ARM] Handling for coprocessor instructions that are undefined starting from ARMv8 (ARM encodings)
llvm-svn: 194261
2013-11-08 16:16:30 +00:00
Artyom Skrobov
2ba7948de8 Export MCDisassembler's SubtargetInfo, to allow architecture-aware disassembly
llvm-svn: 194260
2013-11-08 16:07:43 +00:00
Arnaud A. de Grandmaison
d2be63de4d CalculateSpillWeights cleanup: remove unneeded includes
llvm-svn: 194259
2013-11-08 15:13:05 +00:00
Zoran Jovanovic
291725e9c0 Test for microMIPS trap instructions.
llvm-svn: 194258
2013-11-08 14:55:31 +00:00
NAKAMURA Takumi
ad0df78440 llvm-ar: Let opening a directory failed in llvm-ar.
Linux cannot open directories with open(2), although cygwin and *bsd can.

Motivation: The test, Object/directory.ll, had been failing with --target=cygwin on Linux. XFAIL was improper for host issues.
llvm-svn: 194257
2013-11-08 12:35:56 +00:00
Matheus Almeida
bf40669589 [mips][msa] Update encoding of LDI instruction.
The encoding was updated in MSA r1.07.

llvm-svn: 194255
2013-11-08 10:43:11 +00:00
Artyom Skrobov
6b3d6a326b [ARM] In ARMAsmParser, MatchCoprocessorOperandName() permitted p10 and p11 as operands for coprocessor instructions, resulting in encodings that clash with FP/NEON instruction encodings
llvm-svn: 194253
2013-11-08 09:16:31 +00:00
Bill Wendling
9238d2a9f6 Remove ^M from the file.
llvm-svn: 194251
2013-11-08 08:13:15 +00:00
David Majnemer
1cc343770a IR: Properly canonicalize PointerType in ConstantExpr GEPs
No additional test was needed, Other/constant-fold-gep.ll detects this
just fine.

llvm-svn: 194221
2013-11-07 22:29:42 +00:00
David Majnemer
d1c4acb898 IR: Do not canonicalize constant GEPs into an out-of-bounds array access
Summary:
Consider a GEP of:
i8* getelementptr ({ [2 x i8], i32, i8, [3 x i8] }* @main.c, i32 0, i32 0, i64 0)

If we proceeded to GEP the aforementioned object by 8, would form a GEP of:
i8* getelementptr ({ [2 x i8], i32, i8, [3 x i8] }* @main.c, i32 0, i32 0, i64 8)

Note that we would go through the first array member, causing an
out-of-bounds accesses.  This is problematic because we might get fooled
if we are trying to evaluate loads using this GEP, for example, based
off of an object with a constant initializer where the array is zero.

This fixes PR17732.

Reviewers: nicholas, chandlerc, void

Reviewed By: void

CC: llvm-commits, echristo, void, aemerson

Differential Revision: http://llvm-reviews.chandlerc.com/D2093

llvm-svn: 194220
2013-11-07 22:15:53 +00:00
Bill Wendling
62b2b2d29b Run clang-format on file.
llvm-svn: 194219
2013-11-07 20:18:21 +00:00
Bill Wendling
1824ef73c8 Move copying of global initializers below the cloning of functions.
The BlockAddress doesn't have access to the correct basic blocks until the
functions have been cloned. This causes the BlockAddress to point to the old
values. Just wait until the functions have been cloned before copying the
initializers.
PR13163

llvm-svn: 194218
2013-11-07 20:14:51 +00:00
Zoran Jovanovic
935364b314 Support for microMIPS trap instructions 1.
llvm-svn: 194205
2013-11-07 14:35:24 +00:00