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Author SHA1 Message Date
Chad Rosier
8cfccc356e Temporarily disable SelectIntrinsicCall when in ARM mode. This is causing failures. 
llvm-svn: 144492
 2011-11-13 05:14:43 +00:00
Chad Rosier
0770c4834a Fix comments. 
llvm-svn: 144490
 2011-11-13 04:25:02 +00:00
Chad Rosier
acd199b5a4 Add support for emitting both signed- and zero-extend loads. Fix 
SimplifyAddress to handle either a 12-bit unsigned offset or the ARM +/-imm8
offsets (addressing mode 3).  This enables a load followed by an integer 
extend to be folded into a single load.

For example:
ldrb r1, [r0]       ldrb r1, [r0]
uxtb r2, r1     =>
mov  r3, r2         mov  r3, r1

llvm-svn: 144488
 2011-11-13 02:23:59 +00:00
NAKAMURA Takumi
fca0bc8d54 Prune more RALinScan. RALinScan was also here! 
llvm-svn: 144487
 2011-11-13 01:33:10 +00:00
Jakob Stoklund Olesen
989b255462 More dead code elimination in VirtRegMap. 
This thing is looking a lot like a virtual register map now.

llvm-svn: 144486
 2011-11-13 01:23:34 +00:00
Jakob Stoklund Olesen
eb77ff7f7d Stop tracking spill slot uses in VirtRegMap. 
Nobody cared, StackSlotColoring scans the instructions to find used stack
slots.

llvm-svn: 144485
 2011-11-13 01:23:30 +00:00
Jakob Stoklund Olesen
edaed81556 Remove dead code and data from VirtRegMap. 
Most of this stuff was supporting the old deferred spill code insertion
mechanism.  Modern spillers just edit machine code in place.

llvm-svn: 144484
 2011-11-13 01:02:04 +00:00
Jakob Stoklund Olesen
27c2431c70 Stop tracking unused registers in VirtRegMap. 
The information was only used by the register allocator in
StackSlotColoring.

llvm-svn: 144482
 2011-11-13 00:39:45 +00:00
Jakob Stoklund Olesen
3eaaa93104 Remove the -color-ss-with-regs option. 
It was off by default.

The new register allocators don't have the problems that made it
necessary to reallocate registers during stack slot coloring.

llvm-svn: 144481
 2011-11-13 00:31:23 +00:00
Jakob Stoklund Olesen
c7672e78ef Delete VirtRegRewriter. 
And there was much rejoicing.

llvm-svn: 144480
 2011-11-13 00:16:01 +00:00
Jakob Stoklund Olesen
b54c411fc1 Switch PBQP to VRM's trivial rewriter. 
The very complicated VirtRegRewriter is going away.

llvm-svn: 144479
 2011-11-13 00:02:24 +00:00
Jakob Stoklund Olesen
5a265aeb70 Delete the old spilling framework from LiveIntervalAnalysis. 
This is dead code, all register allocators use InlineSpiller.

llvm-svn: 144478
 2011-11-12 23:57:05 +00:00
Jakob Stoklund Olesen
d0ddec5771 Delete the 'standard' spiller with used the old spilling framework. 
The current register allocators all use the inline spiller.

llvm-svn: 144477
 2011-11-12 23:29:02 +00:00
Jakob Stoklund Olesen
92abfb4cd7 Switch PBQP to the modern InlineSpiller framework. 
It is worth noting that the old spiller would split live ranges around
basic blocks. The new spiller doesn't do that.

PBQP should do its own live range splitting with
SplitEditor::splitSingleBlock() if desired.  See
RAGreedy::tryBlockSplit().

llvm-svn: 144476
 2011-11-12 23:17:52 +00:00
Jakob Stoklund Olesen
78902f9088 Delete the linear scan register allocator. 
RegAllocGreedy has been the default for six months now.

Deleting RegAllocLinearScan makes it possible to also delete
VirtRegRewriter and clean up the spiller code.

llvm-svn: 144475
 2011-11-12 22:39:45 +00:00
Jakob Stoklund Olesen
bb527a67c0 Remove histogram tests. 
Counting the number of occurences of each opcode is not a useful test.

llvm-svn: 144474
 2011-11-12 22:39:40 +00:00
Jakob Stoklund Olesen
9195bec6e7 RAGreedy is better about hinting now. 
Or maybe we are just getting lucky.

llvm-svn: 144473
 2011-11-12 22:39:37 +00:00
Jakob Stoklund Olesen
4aa9c6888f Linear scan is going away. 
llvm-svn: 144472
 2011-11-12 22:39:34 +00:00
Jakob Stoklund Olesen
e1b1bbb882 XFAIL test that depends on linear scan to remove dead code. 
Filed PR11364 to track the problem.  Should the register allocator
eliminate dead code?

llvm-svn: 144471
 2011-11-12 22:39:30 +00:00
Jakob Stoklund Olesen
43b7a3871b Remove obsolete test. 
This test was committed with a bugfix to RemoveCopyByCommutingDef, but
that optimization is no longer triggered by this test.

llvm-svn: 144470
 2011-11-12 22:39:27 +00:00
Jakob Stoklund Olesen
6a290484cb Remove obsolete test. 
This test is for a very specific LocalRewriter bug.  LocalRewriter is
going away.

llvm-svn: 144469
 2011-11-12 22:39:24 +00:00
Jakob Stoklund Olesen
005eabf28a Remove obsolete test. 
I don't think this test does what is was supposed to do, and
LocalRewriter is going away anyway.

llvm-svn: 144463
 2011-11-12 20:37:57 +00:00
Jakob Stoklund Olesen
c11d7a9b4d Eliminate more linear scan tests. 
llvm-svn: 144462
 2011-11-12 20:35:26 +00:00
Jakob Stoklund Olesen
0fe59856fd Switch a couple -O0 tests to RABasic. 
llvm-svn: 144461
 2011-11-12 20:11:04 +00:00
Jakob Stoklund Olesen
94ce588b20 Switch a few tests off linearscan. 
llvm-svn: 144460
 2011-11-12 19:53:52 +00:00
Jakob Stoklund Olesen
f8fed2a3a7 Delete old test of a VirtRegRewriter feature. 
This test doesn't expose the issue with RAGreedy.

I filed PR11363 to track the missing InlineSpiller feature.

llvm-svn: 144459
 2011-11-12 19:53:48 +00:00
Jakob Stoklund Olesen
49118cf9a5 Remove old test that doesn't make sense. 
The test is checking that the output doesn't contains any 'mov '
strings. It does contain movl, though.

llvm-svn: 144458
 2011-11-12 19:53:45 +00:00
Craig Topper
0458cdf64a Add more AVX2 shift lowering support. Move AVX2 variable shift to use patterns instead of custom lowering code. 
llvm-svn: 144457
 2011-11-12 09:58:49 +00:00
Nick Lewycky
772024a00d Don't try to loop on iterators that are potentially invalidated inside the loop. Fixes PR11361! 
llvm-svn: 144454
 2011-11-12 03:09:12 +00:00
Akira Hatanaka
58e0babe25 Fix typo. 
llvm-svn: 144453
 2011-11-12 02:38:12 +00:00
Akira Hatanaka
53f5f9bc9f Implement Mips64's handling of byval arguments in LowerCall. 
llvm-svn: 144452
 2011-11-12 02:34:50 +00:00
Sean Callanan
7c35e9d15b Fixed the MCJIT so that it can emit not only instance 
methods but also class methods for Objective-C.

Clang emits Objective-C method names with '\1' at the
beginning, and the JIT has pre-existing logic to try
prepending a '\1' when searching a module for an
instance method (that is, a method whose name begins
with '-').  I simply extended it to do the same thing
when it encountered a class method (a method whose
name begins with '+').

llvm-svn: 144451
 2011-11-12 02:31:32 +00:00
Akira Hatanaka
26219cc439 Implement Mips64's handling of byval arguments in LowerFormalArguments. 
llvm-svn: 144449
 2011-11-12 02:29:58 +00:00
Akira Hatanaka
892b99b327 64-bit arbitrary immediate pattern. 
llvm-svn: 144448
 2011-11-12 02:25:00 +00:00
Akira Hatanaka
a0188ffa09 Function for handling byval arguments. 
llvm-svn: 144447
 2011-11-12 02:20:46 +00:00
Daniel Dunbar
9763106c94 LLVMBuild: Add info for gtest. 
llvm-svn: 144445
 2011-11-12 02:11:04 +00:00
Daniel Dunbar
73d41b0f03 build: Attempt to rectify inconsistencies between CMake and LLVMBuild versions of explicit dependencies. 
- The hope is that we have a tool/test to verify these are accurate (and tight) soon.

llvm-svn: 144444
 2011-11-12 02:10:57 +00:00
Eli Friedman
a83fbaff5f Make sure scalarrepl picks the correct alloca when it rewrites a bitcast. Fixes PR11353. 
llvm-svn: 144442
 2011-11-12 02:07:50 +00:00
Rafael Espindola
5f6b14719f The dwarf standard says that the only differences between a out-of-line 
instance and a concrete inlined instance are the use of DW_TAG_subprogram
instead of DW_TAG_inlined_subroutine and the who owns the tree.

We were also omitting DW_AT_inline from the abstract roots. To fix this,
make sure we mark abstract instance roots with DW_AT_inline even when
we have only out-of-line instances referring to them with DW_AT_abstract_origin.

FileCheck is not a very good tool for tests like this, maybe we should add
a -verify mode to llvm-dwarfdump.

llvm-svn: 144441
 2011-11-12 01:57:54 +00:00
Jim Grosbach
7e41554aa7 ARM refactor simple immediate asm operand render methods. 
These immediate operands all use the same simple logic for rendering to
MCInst, so have them share the method for doing so.

llvm-svn: 144439
 2011-11-12 00:58:43 +00:00
Eli Friedman
8563e57e38 Don't try to form pre/post-indexed loads/stores until after LegalizeDAG runs. Fixes PR11029. 
llvm-svn: 144438
 2011-11-12 00:35:34 +00:00
Jim Grosbach
312b583950 Re-apply 144430, this time with the associated isel and disassmbler bits. 
Original commit msg: 'ARM assembly parsing for VST1 two-register encoding.'

llvm-svn: 144437
 2011-11-12 00:31:53 +00:00
Daniel Dunbar
49cee27d34 build/Make: Define a TARGET_NATIVE_ARCH variable to be a bit more precise than 
ARCH, which gets tested in many more contexts.

llvm-svn: 144434
 2011-11-12 00:18:02 +00:00
Eli Friedman
e1ea21fd5d Some cleanup and bulletproofing for node replacement in LegalizeDAG. To maintain LegalizeDAG invariants, whenever we a node is replaced, we must attempt to delete it, and if it still 
has uses after it is replaced (which can happen in rare cases due to CSE), we must revisit it.

llvm-svn: 144432
 2011-11-11 23:58:27 +00:00
Jim Grosbach
7fccd540c9 Oops. Missed the isel half of this. revert while I sort that out. 
llvm-svn: 144431
 2011-11-11 23:51:31 +00:00
Jim Grosbach
13af5276a1 ARM assembly parsing for VST1 two-register encoding. 
llvm-svn: 144430
 2011-11-11 23:45:47 +00:00
Jim Grosbach
13b7ab7527 ARM optional size suffix for VLDR/VSTR syntax. 
llvm-svn: 144427
 2011-11-11 23:34:43 +00:00
Chad Rosier
a2a0fbeded Add support in fast-isel for selecting memset/memcpy/memmove intrinsics. 
llvm-svn: 144426
 2011-11-11 23:31:03 +00:00
Chad Rosier
88ab27405f Loosen test by using REs. Approved by Devang. 
llvm-svn: 144425
 2011-11-11 23:25:38 +00:00
Daniel Dunbar
67b8edce31 CMake: Fix CMake build for new Mips tblgen file. 
llvm-svn: 144423
 2011-11-11 23:12:56 +00:00