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99279 Commits

Author SHA1 Message Date
NAKAMURA Takumi 3189afc4ca [CMake] Add llvm-tblgen to dependencies of check-llvm. 
llvm-tblgen is not built when external LLVM_TABLEGEN is specified.
Even then, llvm-tblgen should be built for testing tblgen itself.

llvm-svn: 199558
 2014-01-18 19:01:08 +00:00
Benjamin Kramer fea9ac99b0 InstCombine: Make the (fmul X, -1.0) -> (fsub -0.0, X) transform handle vectors too. 
PR18532.

llvm-svn: 199553
 2014-01-18 16:43:14 +00:00
Benjamin Kramer 5d2ff221f6 Upgrade ConstantFP's negative zero and infinity getters to handle vector types. 
Will be used soon.

llvm-svn: 199552
 2014-01-18 16:43:06 +00:00
Adrian Prantl 1b06349e74 typo 
llvm-svn: 199537
 2014-01-18 02:12:10 +00:00
Adrian Prantl ef129fbb41 Debug info (LTO): Move the creation of accessibility flags to 
getOrCreateSubprogramDIE to avoid attributes being added twice when DIEs
are merged.

rdar://problem/15842330.

llvm-svn: 199536
 2014-01-18 02:12:00 +00:00
Owen Anderson 48b842ef7c Fix more instances of dropped fast math flags when optimizing FADD instructions. All found by inspection (aka grep). 
llvm-svn: 199528
 2014-01-18 00:48:14 +00:00
Reid Kleckner 436c42ec3d Add an inalloca flag to allocas 
Summary:
The only current use of this flag is to mark the alloca as dynamic, even
if its in the entry block.  The stack adjustment for the alloca can
never be folded into the prologue because the call may clear it and it
has to be allocated at the top of the stack.

Reviewers: majnemer

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D2571

llvm-svn: 199525
 2014-01-17 23:58:17 +00:00
Justin Bogner 2b164bd98d MC: Add some missing include guards 
Patch by Daniel Reynaud!

llvm-svn: 199523
 2014-01-17 22:39:45 +00:00
Juergen Ributzka 5d05ed1d17 Update LangRef to emphasize the difference between "coldcc" and "preserve_mostcc". 
llvm-svn: 199521
 2014-01-17 22:24:35 +00:00
Rui Ueyama 24fc2d641f 80-column. 
llvm-svn: 199519
 2014-01-17 22:11:27 +00:00
Rui Ueyama e5df6095b1 llvm-objdump/COFF: Print ordinal base number. 
llvm-svn: 199518
 2014-01-17 22:02:24 +00:00
Juergen Ributzka e625013071 Add two new calling conventions for runtime calls 
This patch adds two new target-independent calling conventions for runtime
calls - PreserveMost and PreserveAll.
The target-specific implementation for X86-64 is defined as following:
  - Arguments are passed as for the default C calling convention
  - The same applies for the return value(s)
  - PreserveMost preserves all GPRs - except R11
  - PreserveAll preserves all GPRs and all XMMs/YMMs - except R11

Reviewed by Lang and Philip

llvm-svn: 199508
 2014-01-17 19:47:03 +00:00
Daniel Sanders b825a634d6 [mips][msa] Correct pattern for LSA 
Summary:
$rs and $rt were the wrong way round in the .td and the testcase wasn't
strict enough to detect the mistake.

Reviewers: matheusalmeida

Reviewed By: matheusalmeida

Differential Revision: http://llvm-reviews.chandlerc.com/D2554

llvm-svn: 199498
 2014-01-17 15:40:05 +00:00
Daniel Sanders c7a9f8d298 [mips] Split IIIdiv int II_DIV, II_DIVU, II_DDIV, and II_DDIVU 
No functional change since the InstrItinData's were duplicated

llvm-svn: 199497
 2014-01-17 14:48:06 +00:00
Daniel Sanders e95a137b96 [mips][sched] Split IIImul and IIImult into subclasses. 
IIImul -> II_MUL
IIImult -> II_MULT, II_MULTU, II_MADD, II_MADDU, II_MSUB, II_MSUBU, II_DMULT, II_DMULTU

No functional change since the InstrItinData's have been duplicated.

llvm-svn: 199495
 2014-01-17 14:32:41 +00:00
Daniel Sanders 9342557ea7 [mips][sched] Split IIHiLo into II_MFHI_MFLO and II_MTHI_MTLO 
No functional change since the InstrItinData's have been duplicated.

llvm-svn: 199493
 2014-01-17 14:17:34 +00:00
Renato Golin afc43a1cbe Add MLA alias for ARMv4 support. 
Fix MLA defs to use register class GPRnopc.
Add encoding tests for multiply instructions.
(Alias for MUL/SMLAL/UMLAL added by r199026.)

Patch by Zhaoshi.

llvm-svn: 199491
 2014-01-17 13:53:08 +00:00
Chandler Carruth bf2b652c05 [PM] [cleanup] Rename some of the Verifier's members, re-arrange them, 
and tweak comments prior to more invasive surgery. Also clean up some
other non-doxygen comments, and run clang-format over the parts that are
going to change dramatically in subsequent commits so that those don't
get cluttered with formatting changes.

No functionality changed.

llvm-svn: 199489
 2014-01-17 11:09:34 +00:00
Kostya Serebryany 714c67c31e [asan] extend asan-coverage (still experimental). 
- add a mode for collecting per-block coverage (-asan-coverage=2).
   So far the implementation is naive (all blocks are instrumented),
   the performance overhead on top of asan could be as high as 30%.
 - Make sure the one-time calls to __sanitizer_cov are moved to function buttom,
   which in turn required to copy the original debug info into the call insn.

Here is the performance data on SPEC 2006
(train data, comparing asan with asan-coverage={0,1,2}):

                             asan+cov0     asan+cov1      diff 0-1    asan+cov2       diff 0-2      diff 1-2
       400.perlbench,        65.60,        65.80,         1.00,        76.20,         1.16,         1.16
           401.bzip2,        65.10,        65.50,         1.01,        75.90,         1.17,         1.16
             403.gcc,         1.64,         1.69,         1.03,         2.04,         1.24,         1.21
             429.mcf,        21.90,        22.60,         1.03,        23.20,         1.06,         1.03
           445.gobmk,       166.00,       169.00,         1.02,       205.00,         1.23,         1.21
           456.hmmer,        88.30,        87.90,         1.00,        91.00,         1.03,         1.04
           458.sjeng,       210.00,       222.00,         1.06,       258.00,         1.23,         1.16
      462.libquantum,         1.73,         1.75,         1.01,         2.11,         1.22,         1.21
         464.h264ref,       147.00,       152.00,         1.03,       160.00,         1.09,         1.05
         471.omnetpp,       115.00,       116.00,         1.01,       140.00,         1.22,         1.21
           473.astar,       133.00,       131.00,         0.98,       142.00,         1.07,         1.08
       483.xalancbmk,       118.00,       120.00,         1.02,       154.00,         1.31,         1.28
            433.milc,        19.80,        20.00,         1.01,        20.10,         1.02,         1.01
            444.namd,        16.20,        16.20,         1.00,        17.60,         1.09,         1.09
          447.dealII,        41.80,        42.20,         1.01,        43.50,         1.04,         1.03
          450.soplex,         7.51,         7.82,         1.04,         8.25,         1.10,         1.05
          453.povray,        14.00,        14.40,         1.03,        15.80,         1.13,         1.10
             470.lbm,        33.30,        34.10,         1.02,        34.10,         1.02,         1.00
         482.sphinx3,        12.40,        12.30,         0.99,        13.00,         1.05,         1.06

llvm-svn: 199488
 2014-01-17 11:00:30 +00:00
Chandler Carruth 7677760ec8 [PM] Remove the preverifier and directly compute the DominatorTree for 
the verifier after ensuring the CFG is at least usefully formed.

This fixes a number of problems:
1) The PreVerifier was missing the controls the Verifier provides over
   *how* an invalid module is handled -- it just aborted the program!
   Now it uses the same logic as the Verifier which is significantly
   more library-friendly.
2) The DominatorTree used previously could have been cached and not
   updated due to bugs in prior passes and we would silently use the
   stale tree. This could cause dominance errors to not be as quickly
   diagnosed.
3) We can now (in the next patch) pull the functionality of the verifier
   apart from the pass infrastructure so that you can verify IR without
   having any form of pass manager. This in turn frees the code to share
   logic between old and new pass manager variants.

Along the way I fixed at least one annoying bug -- the state for
'Broken' wasn't being cleared from run to run causing all functions
visited after the first broken function to be marked as broken
regardless of whether *they* were a problem. Fortunately, I don't really
know much of a way to observe this peculiarity.

In case folks are worried about the runtime cost, its negligible.
I looked at running the entire regression test suite (which should be
a relatively good use of the verifier) before and after but was unable
to even measure the time spent on the verifier and there was no
regresion from before to after. I checked both with debug builds and
optimized builds.

llvm-svn: 199487
 2014-01-17 10:56:02 +00:00
Kevin Qin e0faea11b1 [AArch64 NEON] Expand vector for UDIV/SDIV/UREM/SREM/FREM as neon doesn't support these operations. 
llvm-svn: 199485
 2014-01-17 09:54:30 +00:00
Chandler Carruth f8f0015b45 Add the test for libstdc++ versions newer than 4.6 so we don't 
accidentally pick that up while using Clang and run into subtle bugs
down the road related to C++11 features not fully implemented in that
version of the standard library.

llvm-svn: 199484
 2014-01-17 09:47:55 +00:00
Craig Topper 80ab268b06 Switch a few instructions to use RI instead I so they don't require REX_W to be explicitly specified. 
llvm-svn: 199479
 2014-01-17 08:16:57 +00:00
Craig Topper f124c6a5ef Add OpSize16 flags to 32-bit CRC32 instructions so they can be encoded correctly in 16-bit mode. 
llvm-svn: 199478
 2014-01-17 08:01:20 +00:00
Craig Topper 2d4b3c9770 Teach x86 asm parser to handle 'opaque ptr' in Intel syntax. 
llvm-svn: 199477
 2014-01-17 07:44:10 +00:00
Craig Topper 9ac290ad5b Teach X86 asm parser to understand 'ZMMWORD PTR' in Intel syntax. 
llvm-svn: 199476
 2014-01-17 07:37:39 +00:00
Craig Topper a49c2960c6 Fix intel syntax for 64-bit version of FXSAVE/FXRSTOR to use '64' suffix instead of 'q' 
llvm-svn: 199474
 2014-01-17 07:25:39 +00:00
Craig Topper 5a44496988 VEX_PREFIX_66 doesn't need to set the hasOpSize flag since VEX instructions don't use the size fields it controls. 
llvm-svn: 199470
 2014-01-17 07:11:45 +00:00
Craig Topper 3cbe160619 Replace duplicated code with a existing helper function. 
llvm-svn: 199468
 2014-01-17 06:42:38 +00:00
Hao Liu 17457a2ee2 [AArch64]Fix the problem can't select f16_to_f32 and f32_to_f16. 
Also add copy support for FPR16.
Also add a missing test case file belongs to commit r197361.

llvm-svn: 199463
 2014-01-17 06:23:30 +00:00
Kevin Qin 212d9b4a56 [AArch64 NEON] Custom lower conversion between vector integer and vector floating point if element bit-width doesn't match. 
llvm-svn: 199462
 2014-01-17 05:52:35 +00:00
Hao Liu 18d92262c5 [AArch64]Fix the problem can't select concat_vectors of two v1i32 types. 
Also fix the problem can't select scalar_to_vector from f32 to v2f32/v4f32.

llvm-svn: 199461
 2014-01-17 05:44:46 +00:00
Bob Wilson d9b5ee8267 Fix bad variable syntax in r199413 
llvm-svn: 199447
 2014-01-17 00:40:39 +00:00
Rafael Espindola 98d3c101dd Use LLVM_EXPLICIT instead of a function pointer as bool. 
llvm-svn: 199437
 2014-01-16 23:37:23 +00:00
Reid Kleckner 60d3a835ff Change inalloca rules to make it only apply to the last parameter 
This makes things a lot easier, because we can now talk about the
"argument allocation", which allocates all the memory for the call in
one shot.

The only functional change is to the verifier for a feature that hasn't
shipped yet.

llvm-svn: 199434
 2014-01-16 22:59:24 +00:00
Quentin Colombet dc0b2ea2bc [opt][PassInfo] Allow opt to run passes that need target machine. 
When registering a pass, a pass can now specify a second construct that takes as
argument a pointer to TargetMachine.
The PassInfo class has been updated to reflect that possibility.
If such a constructor exists opt will use it instead of the default constructor
when instantiating the pass.

Since such IR passes are supposed to be rare, no specific support has been
added to this commit to allow an easy registration of such a pass.
In other words, for such pass, the initialization function has to be
hand-written (see CodeGenPrepare for instance).

Now, codegenprepare can be tested using opt:
opt -codegenprepare -mtriple=mytriple input.ll

llvm-svn: 199430
 2014-01-16 21:44:34 +00:00
Duncan P. N. Exon Smith 40fdf5fee6 LTO: document LTO_API_VERSION for each API 
Adding a doxygen comment for each bit of API to indicate at which
LTO_API_VERSION each was available, manually gleaned from successive
git-blames.  A few notes:

- LTO_API_VERSION was set to 3 at its introduction.
- I've indicated all the API introduced before LTO_API_VERSION was
  around as available "prior to LTO_API_VERSION=3".
- A number of API changes neglected to bump LTO_API_VERSION.  These I've
  indicated as available at the *next* bump of LTO_API_VERSION.

llvm-svn: 199429
 2014-01-16 21:37:17 +00:00
Owen Anderson e7321660c1 Fix two cases where we could lose fast math flags when optimizing FADD expressions. 
llvm-svn: 199427
 2014-01-16 21:26:02 +00:00
Owen Anderson 4557a156e3 Fix an instance where we would drop fast math flags when performing an fdiv to reciprocal multiply transformation. 
llvm-svn: 199425
 2014-01-16 21:07:52 +00:00
Owen Anderson e8537fc7e0 Fix a bug in InstCombine where we failed to preserve fast math flags when optimizing an FMUL expression. 
llvm-svn: 199424
 2014-01-16 20:59:41 +00:00
Rui Ueyama ef8dede111 Fix style issues. 
llvm-svn: 199423
 2014-01-16 20:57:55 +00:00
Rui Ueyama da49d0d44c llvm-objdump/COFF: Print DLL name in the export table header. 
llvm-svn: 199422
 2014-01-16 20:50:34 +00:00
Owen Anderson f74cfe031f Teach InstCombine that (fmul X, -1.0) can be simplified to (fneg X), which LLVM expresses as (fsub -0.0, X). 
llvm-svn: 199420
 2014-01-16 20:36:42 +00:00
Rui Ueyama 686738e226 Use static instead of anonymous namespace. 
llvm-svn: 199419
 2014-01-16 20:30:36 +00:00
Rui Ueyama 5efa665f7b Reduce nesting. 
llvm-svn: 199418
 2014-01-16 20:22:55 +00:00
Rui Ueyama 8ff24d25de Use the current local variable naming style. 
llvm-svn: 199417
 2014-01-16 20:11:48 +00:00
Bob Wilson 95a8bcd9f6 Pass the --enable-libcpp configure option for cross builds, too. 
<rdar://problem/15831288>

llvm-svn: 199413
 2014-01-16 19:35:01 +00:00
Kevin Enderby 8f4921c333 Tweak the MCExternalSymbolizer to print references to C string literals 
with raw_ostream's write_escaped() method.

For example darwin's otool(1) program that uses the llvm
disassembler now produces disassembly like this:

leaq	0x7b(%rip), %rdi ## literal pool for: "%f\ntoto\n"

and not print the new lines which messes up the output.

rdar://15145300

llvm-svn: 199407
 2014-01-16 18:43:56 +00:00
Ed Maste ef6fed7c84 llvm-symbolizer: make mangled name heuristic apply to all symbols 
PR: http://llvm.org/pr18431
Review: http://llvm-reviews.chandlerc.com/D2552
llvm-svn: 199404
 2014-01-16 17:25:12 +00:00
Daniel Sanders 59f991505c [mips][sched] Removed IIXfer. No instructions use it. 
llvm-svn: 199403
 2014-01-16 17:23:08 +00:00