Commit Graph

105407 Commits

Author SHA1 Message Date
Rafael Espindola
2291f8cf89 Avoid mangling names twice. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212348 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 16:37:02 +00:00
Rafael Espindola
40b9d67109 Mark intrinsic functions as llvm-specific.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212347 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 15:58:00 +00:00
Daniel Sanders
2093081c8e [mips][mips64r6] Set ELF e_flags for MIPS32r6/MIPS64r6. Also do MIPS-I to MIPS-V
Differential Revision: http://reviews.llvm.org/D4386


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212346 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 15:21:53 +00:00
Daniel Sanders
8ce13cfc08 [mips] Add tests for the 'ret', 'call', and 'indirectbr' LLVM IR instruction.
Summary:
The tests in this directory are intended to test a single IR instruction
with as few dependencies on other instructions as possible. The aim is to
be very confident that each LLVM-IR instruction is implemented correctly and
with the optimal sequence of instructions, as well as to make it easy to tell
what is tested, and make it easier to bring up new ISA revisions in the
future. This gives us a good foundation on which to test bigger things.

These particular tests will allow testing that MIPS32r6/MIPS64r6 generate
the correct return instruction for returns, calls, and indirect branches.
This will be a bit tricky since the assembly text is identical but the
instruction is actually different. On MIPS32r6/MIPS64r6 'jr $rs' has been
removed in favour of the equivalent 'jalr $zero, $rs'. 'jr $rs' remains as
an alias for 'jalr $zero, $rs'.

Differential Revision: http://reviews.llvm.org/D4266


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212345 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 15:16:14 +00:00
Rafael Espindola
ada0f6a93e Don't include llvm.metadata variables in archive symbol tables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212344 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 15:03:17 +00:00
Rafael Espindola
a593909c3d Change LTOModule`s getTargetTriple and setTargetTriple to use c++ types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212343 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 14:19:41 +00:00
Rafael Espindola
9f72a18a50 Convert a few std::strings to StringRef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212342 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 14:12:46 +00:00
Rafael Espindola
2d1f275c99 Convert these functions to use ErrorOr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212341 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 13:52:01 +00:00
Rafael Espindola
82a599a0a4 Remove unused old-style error handling.
If needed, an ErrorOr should be used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212340 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 13:30:13 +00:00
Benjamin Kramer
5b55a47e94 GlobalDCE: Delete available_externally initializers if it allows removing the value the initializer is referring to.
This is useful for functions that are not actually available externally but
referenced by a vtable of some kind. Clang emits functions like this for the MS
ABI.

PR20182.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212337 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 12:36:05 +00:00
NAKAMURA Takumi
f3f355dd95 llvm/test/CodeGen/XCore/dwarf_debug.ll: Fix not to be affected by *-win32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212335 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 11:58:03 +00:00
NAKAMURA Takumi
4a183c6b87 llvm/test/CodeGen/X86/vector-gep.ll: Appease to add -mtriple=i686-linux.
This doesn't pass if stack alignment is not 16, like cygming, *bsd.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212334 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 11:55:40 +00:00
Tim Northover
0f9d1b381e ARM: when falling back to scattered relocs, keep the type.
The linker relies on relocation type info (e.g. is it a branch?) to perform the
correct actions, so we should keep that even when we end up using a scattered
relocation for whatever reason.

rdar://problem/17553104

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212333 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 10:58:05 +00:00
Tim Northover
5b003bb869 llvm-readobj: fix MachO relocatoin printing a bit.
There were two issues here:
1. At the very least, scattered relocations cannot use the same code to
   determine the corresponding symbol being referred to. For some reason we
   pretend there is no symbol, even when one actually exists in the symtab, so to
   match this behaviour getRelocationSymbol should simply return symbols_end for
   scattered relocations.
2. Printing "-" when we can't get a symbol (including the scattered case, but
   not exclusively), isn't that helpful. In both cases there *is* interesting
   information in that field, so we should print it. As hex will do.

Small part of rdar://problem/17553104

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212332 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 10:57:56 +00:00
Benjamin Kramer
9c1df9164c InstCombine: Strength reduce sadd.with.overflow into a regular nsw add if we can prove that it cannot overflow.
PR20194

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212331 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 10:22:21 +00:00
Daniel Sanders
a39d3ab819 [mips][mips64r6] Correct the encoding of dmuh, dmuhu, dmul, and dmulu.
We have detected a documentation bug in the encoding tables of the released
MIPS64r6 specification that has resulted in the wrong encodings being used for
these instructions in LLVM. This commit corrects them.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212330 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 10:08:27 +00:00
Sylvestre Ledru
2856d23b9c Phabricator doc: Explicit the fact that the patch needs to be there before the commit
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212328 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 09:00:35 +00:00
Chandler Carruth
f9749edd61 [x86] Relax the line in this check to pacify build bots.
I still don't love testing the comments, but its the only sane way to
check shuffle instructions...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212326 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 08:39:30 +00:00
Chandler Carruth
b2a3131c88 [x86] Move some check lines to be slightly easier for me to find.
(meant to put this cleanup in the previous patch, sorry)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212325 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 08:19:37 +00:00
Chandler Carruth
a46e60eb2e [x86] Generalize BuildVectorSDNode::getConstantSplatValue to work for
any constant, constant FP, or undef splat and to tolerate any undef
lanes in a splat, then replace all uses of isSplatVector in X86's
lowering with it.

This fixes issues where undef lanes in an otherwise splat vector would
prevent the splat logic from firing. It is a touch more awkward to use
this interface, but it is much more accurate. Suggestions for better
interface structuring welcome.

With this fix, the code generated with the widening legalization
strategy for widen_cast-4.ll is *dramatically* improved as the special
lowering strategies for a v16i8 SRA kick in even though the high lanes
are undef.

We also get a slightly different choice for broadcasting an aligned
memory location, and use vpshufd instead of vbroadcastss. This looks
like a minor win for pipelining and domain crossing, but a minor loss
for the number of micro-ops. I suspect its a wash, but folks can easily
tweak the lowering if they want.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212324 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 08:11:49 +00:00
Chandler Carruth
c5bc152534 Add an explicit bool operator to SDValue to make it easier to test for
a non-null node. In particular, this makes it easier to use condition
variables with SDValues, etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212323 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 08:11:38 +00:00
Alexey Volkov
1bd30dce7b [X86] Limit maximum nop length on Silvermont
Silvermont can only decode one instruction per cycle if the instruction exceeds 8 bytes.
Also in Silvermont instructions with more than 3 prefixes will cause 3 cycle penalty.
Maximum nop length is limited to 7 bytes when used for padding on Silvermont.
For other x86 processors max nop length remains unchanged 15 bytes.

Differential Revision: http://reviews.llvm.org/D4374


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212321 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 07:14:56 +00:00
Robert Lytton
546cfbfd0a XCore target: remove incorrect DebugLoc entries from prologue
Summary: This was causing the prologue_end to be incorrectly positioned.

Differential Revision: http://reviews.llvm.org/D4122

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212318 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 06:38:22 +00:00
NAKAMURA Takumi
f8be6fbe82 Let test/Unit/lit.cfg add config.shlibdir to $PATH on DLL platforms like cygming.
This makes unittests run with BUILD_SHARED_LIBS on DLL platforms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212316 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 05:11:55 +00:00
NAKAMURA Takumi
7ca91f97cc [CMake] Introduce LLVM_ENABLE_PLUGINS as an internal option. BUILD_SHARED_LIBS may not control enable/disable plugins.
FIXME: Make this configurable.

FIXME: "ENABLE_SHARED" doesn't make sense, since it is used just for plugins. We may rename it.
I introduced config.enable_shared in r120273.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212315 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 04:45:40 +00:00
NAKAMURA Takumi
1f8525a98f [CMake] Introduce LLVM_SHLIB_OUTPUT_INTDIR.
For now, its user is configure_lit_site_cfg().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212314 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 04:23:26 +00:00
NAKAMURA Takumi
a84cb68aad [CMake] Fix set_output_directory to do nothing if *_OUTPUT_INTDIR was not given.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212313 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 04:23:15 +00:00
Alp Toker
e6b44070cf Fix prefix comparison from r212308
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212310 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 02:01:54 +00:00
Eric Christopher
1baa5d8ea2 Move function dependent resetting of a subtarget variable out of the
subtarget. This involved having the movt predicate take the current
function - since we care about size in instruction selection for
whether or not to use movw/movt take the function so we can check
the attributes. This required adding the current MachineFunction to
FastISel and propagating through.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212309 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 01:55:26 +00:00
Alp Toker
2255dc7712 Sink undesirable LTO functions into the old C API
We want to encourage users of the C++ LTO API to reuse memory buffers instead
of repeatedly opening and reading the same file contents.

This reverts commit r212305 and implements a tidier scheme.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212308 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 00:58:41 +00:00
David Majnemer
00428878bb InstSimplify: Fix a bug when INT_MIN is in a sdiv
When INT_MIN is the numerator in a sdiv, we would not properly handle
overflow when calculating the bounds of possible values; abs(INT_MIN) is
not a meaningful number.

Instead, check and handle INT_MIN by reasoning that the largest value is
INT_MIN/-2 and the smallest value is INT_MIN.

This fixes PR20199.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212307 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-04 00:23:39 +00:00
Peter Collingbourne
5c58257d39 Modify LTOModule::isTargetMatch to take a StringRef instead of a MemoryBuffer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212305 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-03 23:49:28 +00:00
Peter Collingbourne
59349ad8ad gold plugin: move target initialization to the top of the onload function.
On at least my machine, ar does not register an all symbols read hook (which
previously triggered target initialization), but it does register a claim
files hook, which depends on the targets being initialized.

Differential Revision: http://reviews.llvm.org/D4372

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212303 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-03 23:28:03 +00:00
Peter Collingbourne
1e64b30a9b LTO: rename the various makeLTOModule overloads.
This rename makes it easier to identify the specific overload being called
in each particular case and makes future refactorings easier.

Differential Revision: http://reviews.llvm.org/D4370

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212302 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-03 23:28:00 +00:00
Rafael Espindola
ab419e6d0c Move createIRObjectFile to the IRObjectFile class and return the concrete type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212301 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-03 23:03:50 +00:00
Chandler Carruth
040dd45116 [x86] Clarify that this lowering only applies to vectors and is only
used when we have SSE2.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212300 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-03 22:57:44 +00:00
Rafael Espindola
8b5ac4f355 Use std::unique_ptr to manage memory. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212299 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-03 22:43:03 +00:00
Eric Christopher
3a3941576d Temporarily revert "Don't try to construct debug LexicalScopes hierarchy for functions that do not have top level debug information." as it appears to be breaking some LTO constructs.
This reverts commit r212203.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212298 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-03 22:24:54 +00:00
Eric Christopher
3c58743b2d Remove caching of the target machine and initialization of the
subtarget from ARMISelDAGtoDAG. The former is unnecessary and the
latter is initialized on each runOnMachineFunction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212297 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-03 22:24:49 +00:00
Andrea Di Biagio
60e9a53c21 [CostModel][x86] Improved cost model for alternate shuffles.
This patch:
 1) Improves the cost model for x86 alternate shuffles (originally
added at revision 211339);
 2) Teaches the Cost Model Analysis pass how to analyze alternate shuffles.

Alternate shuffles are a special kind of blend; on x86, we can often
easily lowered alternate shuffled into single blend
instruction (depending on the subtarget features).

The existing cost model didn't take into account subtarget features.
Also, it had a couple of "dead" entries for vector types that are never
legal (example: on x86 types v2i32 and v2f32 are not legal; those are
always either promoted or widened to 128-bit vector types).

The new x86 cost model takes into account what target features we have
before returning the shuffle cost (i.e. the number of instructions
after the blend is lowered/expanded).

This patch also teaches the Cost Model Analysis how to identify and analyze
alternate shuffles (i.e. 'SK_Alternate' shufflevector instructions):
 - added function 'isAlternateVectorMask';
 - added some logic to check if an instruction is a alternate shuffle and, in
   case, call the target specific TTI to get the corresponding shuffle cost;
 - added a test to verify the cost model analysis on alternate shuffles.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212296 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-03 22:24:18 +00:00
Kevin Enderby
26272defb6 Add the -just-symbol-name (aka -j) flag to llvm-nm to just print the
symbol’s name.  On darwin the -j flag is used (often in combinations
with other flags) to produce a complete list of symbol names which
than can then be reorder and used with ld(1)’s -order_file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212294 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-03 21:51:07 +00:00
Andrea Di Biagio
d4167d0b29 [X86] Add ISel patterns to select 'f32_to_f16' and 'f16_to_f32' dag nodes.
This patch adds tablegen patterns to select F16C float-to-half-float
conversion instructions from 'f32_to_f16' and 'f16_to_f32' dag nodes.

If the target doesn't have F16C, then 'f32_to_f16' and 'f16_to_f32'
are expanded into library calls.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212293 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-03 21:51:06 +00:00
Rafael Espindola
bc04f3c793 Expand the note about llvm-ar now that inline asm works.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212292 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-03 21:34:25 +00:00
Rafael Espindola
95c1ba668f Move test since it now depends on the x86 backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212289 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-03 20:26:21 +00:00
Rafael Espindola
f47a706438 LTO depends on Object now.
Fixes the build with only the ARM backend enabled. For some reason some
other backend was pulling Object and this went unnoticed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212288 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-03 20:19:03 +00:00
Rafael Espindola
96052a8d12 Add support for inline asm symbols in llvm-ar.
This should allow llvm-ar to be used instead of gnu ar + plugin in a LTO
build. I will add a release note about it once I finish a LTO bootstrap with it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212287 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-03 19:40:08 +00:00
Gerolf Hoflehner
dfb53d227b Run interprocedural const prop before global optimizer
Exposes more constant globals that can be removed by
the global optimizer. A specific example is the removal
of the static global block address array in
clang/test/CodeGen/indirect-goto.c. This change impacts only
lower optimization levels. With LTO interprocedural
const prop runs already before global opt.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212284 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-03 19:28:15 +00:00
Rafael Espindola
c029b2b785 fix configure+make build
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212283 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-03 19:09:53 +00:00
Rafael Espindola
0a7a2ef6b5 Add support for inline asm symbols to IRObjectFile.
This also enables it in llvm-nm so that it can be tested.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212282 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-03 18:59:23 +00:00
Kevin Enderby
c150516f36 Add the -U flag to llvm-nm as an alias to -defined-only
as darwin’s nm(1) uses -U for this functionality.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212280 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-03 18:18:50 +00:00