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29419 Commits

Author SHA1 Message Date
Dan Gohman
e25e17d91e Eliminate a layer of indirection in LoopInfo and MachineLoopInfo. 
llvm-svn: 74394
 2009-06-27 21:22:48 +00:00
Dan Gohman
592d4b6ee0 Convert ScalarEvolution to use BumpPtrAllocator and FoldingSet, instead 
of a team of individual allocations and a team of std::maps.

llvm-svn: 74393
 2009-06-27 21:21:31 +00:00
Dan Gohman
36f9ee7670 Change SCEVExpander to use an IRBuilder to emit instructions. 
llvm-svn: 74391
 2009-06-27 21:18:18 +00:00
Anton Korobeynikov
7231e149ef Simplify a bit 
llvm-svn: 74385
 2009-06-27 12:59:03 +00:00
Anton Korobeynikov
1db77899c1 ARM refactoring. Step 2: split RegisterInfo 
llvm-svn: 74384
 2009-06-27 12:16:40 +00:00
Douglas Gregor
6ee152cc94 Add ThumbInstrInfo.cpp to the CMake makefiles 
llvm-svn: 74382
 2009-06-27 07:44:59 +00:00
Chris Lattner
4d88bfc0d6 remove a bunch of fixmes (old checking code) and commonize all the 
target-specific operand printing functionality.  Yay.

llvm-svn: 74379
 2009-06-27 05:46:24 +00:00
Chris Lattner
9571347ce0 pull @GOT, @GOTOFF, @GOTPCREL handling into isel from the asmprinter. 
llvm-svn: 74378
 2009-06-27 05:39:56 +00:00
Chris Lattner
2dcba29672 simplify some code and eliminate the symbolicAddressesAreRIPRel() predicate. 
llvm-svn: 74377
 2009-06-27 05:24:12 +00:00
Dan Gohman
4acfd5098d When a value is used multiple times within a single PHI, instructions 
inserted to replace that value must dominate all of of the basic
blocks associated with the uses of the value in the PHI, not just
one of them.

llvm-svn: 74376
 2009-06-27 05:16:57 +00:00
Chris Lattner
bab7dd08d2 fix clang/test/CodeGenObjC/try.m, a basereg doesn't mean no global anymore. 
llvm-svn: 74375
 2009-06-27 04:50:14 +00:00
Chris Lattner
82058e92a0 fix a bunch of failures in the X86-64 JIT by tolerating RIP as 
a base register.  We just ignore it for now.

llvm-svn: 74374
 2009-06-27 04:46:33 +00:00
Chris Lattner
e711b85035 factor some logic out into a helper function, allow remat of loads from constant 
globals.  This implements remat-constant.ll even without aggressive-remat.

llvm-svn: 74373
 2009-06-27 04:38:55 +00:00
Chris Lattner
19eb0dad26 Reimplement rip-relative addressing in the X86-64 backend. The new 
implementation primarily differs from the former in that the asmprinter
doesn't make a zillion decisions about whether or not something will be
RIP relative or not.  Instead, those decisions are made by isel lowering
and propagated through to the asm printer.  To achieve this, we:

1. Represent RIP relative addresses by setting the base of the X86 addr
   mode to X86::RIP.
2. When ISel Lowering decides that it is safe to use RIP, it lowers to
   X86ISD::WrapperRIP.  When it is unsafe to use RIP, it lowers to
   X86ISD::Wrapper as before.
3. This removes isRIPRel from X86ISelAddressMode, representing it with
   a basereg of RIP instead.
4. The addressing mode matching logic in isel is greatly simplified.
5. The asmprinter is greatly simplified, notably the "NotRIPRel" predicate
   passed through various printoperand routines is gone now.
6. The various symbol printing routines in asmprinter now no longer infer
   when to emit (%rip), they just print the symbol.

I think this is a big improvement over the previous situation.  It does have
two small caveats though: 1. I implemented a horrible "no-rip" modifier for
the inline asm "P" constraint modifier.  This is a short term hack, there is
a much better, but more involved, solution.  2. I had to xfail an 
-aggressive-remat testcase because it isn't handling the use of RIP in the
constant-pool reading instruction.  This specific test is easy to fix without
-aggressive-remat, which I intend to do next.

llvm-svn: 74372
 2009-06-27 04:16:01 +00:00
Chris Lattner
0ce83b0e95 When doing remat, don't consider uses of non-allocatable physregs. Patch 
by Evan.

llvm-svn: 74370
 2009-06-27 04:06:41 +00:00
Evan Cheng
817712377a Renaming for consistency. 
llvm-svn: 74368
 2009-06-27 02:26:13 +00:00
Chris Lattner
2f690cb2dd Fix PR4466 by making fastisel set operand flags correctly. 
llvm-svn: 74366
 2009-06-27 01:31:51 +00:00
Chris Lattner
ce7f3c052e fix a typo that GCC should have caught that causes crashes with -view-*-dags 
llvm-svn: 74364
 2009-06-27 00:57:02 +00:00
David Goodwin
e1979dfbf5 Remove outdated comment. 
llvm-svn: 74357
 2009-06-26 23:39:02 +00:00
David Goodwin
90fc344e41 When possible, use "mvn ra, rb" instead of "eor ra, rb, -1" because mvn has a narrow version and eor(i) does not. 
llvm-svn: 74355
 2009-06-26 23:13:13 +00:00
Dan Gohman
4f74e815f1 Incorporate the insertion point into the key of SCEVExpander's CSE map. 
This helps it avoid reusing an instruction that doesn't dominate all
of the users, in cases where the original instruction was inserted
before all of the users were known.  This may result in redundant
expansions of sub-expressions that depend on loop-unpredictable values
in some cases, however this isn't very common, and it primarily impacts
IndVarSimplify, so GVN can be expected to clean these up.

This eliminates the need for IndVarSimplify's FixUsesBeforeDefs,
which fixes several bugs.

llvm-svn: 74352
 2009-06-26 22:53:46 +00:00
Devang Patel
4f5d296df0 Remove unused routines. 
llvm-svn: 74351
 2009-06-26 22:53:22 +00:00
David Greene
d33e8e7d83 Add feature flags for AVX and FMA and fix some SSE4A feature flag 
initialization problems.

llvm-svn: 74350
 2009-06-26 22:46:54 +00:00
Dan Gohman
9e78d55440 Fix ScalarEvolution::getAddRecExpr's code which canonicalized the 
nesting order of nested AddRec expressions to skip the transformation
if it would introduce an AddRec with operands not loop-invariant
with respect to its loop.

llvm-svn: 74343
 2009-06-26 22:36:20 +00:00
Dan Gohman
e8b1947a18 Fix SCEVAddRecExpr::isLoopInvariant to test if all of its operands 
are loop invariant, not just the start operand.

llvm-svn: 74338
 2009-06-26 22:17:21 +00:00
Evan Cheng
016ed65455 Add x86 support for 'n' inline asm modifier. This will be handled target independently as part of MC work. 
llvm-svn: 74336
 2009-06-26 22:00:19 +00:00
Chris Lattner
3a48623aef simplify printing of MO_ExternalSymbol in a non-pcrel context. 
llvm-svn: 74334
 2009-06-26 21:47:27 +00:00
Owen Anderson
7fdfd4be66 Privatize some data. 
llvm-svn: 74332
 2009-06-26 21:45:04 +00:00
Owen Anderson
2bcd131128 Constify this value. 
llvm-svn: 74330
 2009-06-26 21:39:56 +00:00
Anton Korobeynikov
aab56476b2 Split thumb-related stuff into separate classes. 
Step 1: ARMInstructionInfo => {ARM,Thumb}InstructionInfo

llvm-svn: 74329
 2009-06-26 21:28:53 +00:00
Chris Lattner
a8ee785cef add %rip to the GR64 register class. Lets avoid allocating it to anything though! :) 
llvm-svn: 74328
 2009-06-26 21:25:00 +00:00
Chris Lattner
1f3d17f45d Move all the TLS processing logic into isel, don't do it in asmprinter at all. 
llvm-svn: 74327
 2009-06-26 21:20:29 +00:00
Chris Lattner
ae824fc834 make sure to propagate operand flags in SelectTLSADDRAddr properly. 
llvm-svn: 74326
 2009-06-26 21:18:37 +00:00
Chris Lattner
ca9aefcc93 fix a really subtle bug in the cross section of aliases and TLS: 
the SelectionDAG::getGlobalAddress function properly looks through
aliases to determine thread-localness, but then passes the GV* down
to GlobalAddressSDNode::GlobalAddressSDNode which does not.  Instead
of passing down isTarget, just pass down the predetermined node
opcode.  This fixes some assertions with out of tree changes I'm 
working on.

llvm-svn: 74325
 2009-06-26 21:14:05 +00:00
David Goodwin
921faa64cd Thumb-2 has CLZ. 
llvm-svn: 74322
 2009-06-26 20:47:43 +00:00
David Goodwin
9da977f216 Use "adcs/sbcs" only when the carry-out is live, otherwise use "adc/sbc". 
llvm-svn: 74321
 2009-06-26 20:45:56 +00:00
Owen Anderson
0cf6b34d5d Get rid of these cache variables, which are a holdover from the days when 
we had multiple type planes and these lookups were expensive.

llvm-svn: 74319
 2009-06-26 20:33:47 +00:00
Owen Anderson
633060240c Make this const. 
llvm-svn: 74317
 2009-06-26 20:21:18 +00:00
Chris Lattner
a56bff5e36 minor cleanup/framework changes. 
llvm-svn: 74316
 2009-06-26 20:00:05 +00:00
Owen Anderson
333c8af1b1 Privatize some variables. 
llvm-svn: 74315
 2009-06-26 19:48:37 +00:00
Chris Lattner
0a0494b4f9 move magic for PIC constantpool references from asmprinter to isel. 
llvm-svn: 74313
 2009-06-26 19:22:52 +00:00
Chris Lattner
0fee902c2d implement DOTGraphTraits<SelectionDAG*>::getNodeLabel in terms of 
SDNode::print_details to eliminate a ton of near-duplicate code.

llvm-svn: 74311
 2009-06-26 19:06:10 +00:00
Chris Lattner
45946d9021 use jump table operand flags in asm printer instead of "magic predicates" 
llvm-svn: 74310
 2009-06-26 18:55:01 +00:00
Owen Anderson
1069071612 Use atomic operations for accessing this global counter. 
llvm-svn: 74294
 2009-06-26 18:09:03 +00:00
David Goodwin
46eb5a7a2d ADC used to implement adde should use "adcs" opcode instead of "adc". 
llvm-svn: 74293
 2009-06-26 18:07:25 +00:00
Owen Anderson
6448beadc8 Get rid of unnecessary global variables. 
llvm-svn: 74291
 2009-06-26 16:46:15 +00:00
David Goodwin
877790aa5f Currently there is a pattern for the thumb-2 MOV 16-bit immediate instruction. That instruction cannot write the flags so it should use T2I instead of T2sI. 
Also, added a pattern for the thumb-2 MOV of shifted immediate since that can encode immediates not encodable by the 16-bit immediate.

llvm-svn: 74288
 2009-06-26 16:10:07 +00:00
Douglas Gregor
6d9b0e8c19 Fix linking of llvm-ld and lli with CMake, from Xerxes Rånby 
llvm-svn: 74285
 2009-06-26 15:37:00 +00:00
Owen Anderson
77f965d8b2 Fix compilation without pthreads. 
Patch by Xerxes Ranby.

llvm-svn: 74283
 2009-06-26 08:48:03 +00:00
Evan Cheng
b93625f89e Simplify predicate CarryDefIsUsed. 
llvm-svn: 74277
 2009-06-26 06:10:18 +00:00
Chris Lattner
497d0ec530 fix a pasto. 
llvm-svn: 74275
 2009-06-26 05:56:49 +00:00
Chris Lattner
05eabf4f95 dot graph viewing is apparently not using SDNode::print_details, this is bad, 
but in the meantime lets print targetflags on node labels.

llvm-svn: 74274
 2009-06-26 05:55:43 +00:00
Chris Lattner
3aef0c897e propagate target operand flags from dag nodes into MachineOperands. 
llvm-svn: 74273
 2009-06-26 05:52:14 +00:00
Chris Lattner
93af5249a1 propagate target operand flags through addressing mode selection. 
llvm-svn: 74272
 2009-06-26 05:51:45 +00:00
Chris Lattner
181d139bc3 fit in 80 cols 
llvm-svn: 74270
 2009-06-26 05:39:02 +00:00
Nick Lewycky
ce25b7e7e6 Escape the name of the module since it comes from the file name and may include 
invalid characters like backslashes on Windows. Patch by James Abbatiello!

llvm-svn: 74265
 2009-06-26 04:33:37 +00:00
Devang Patel
a7a5664fbb Let's ignore MDStrings also! 
llvm-svn: 74255
 2009-06-26 02:26:12 +00:00
Daniel Dunbar
f7c439154f Fix may-be-used-uninitialized warning. 
llvm-svn: 74253
 2009-06-26 02:03:52 +00:00
Devang Patel
84a8914a4a Remove debug info anchors - llvm.dbg.compile_units, llvm.dbg.subprograms 
and llvm.dbg.global_variables.

llvm-svn: 74251
 2009-06-26 01:49:18 +00:00
Daniel Dunbar
0d9b275e55 Fix unused variable warnings. 
llvm-svn: 74250
 2009-06-26 01:34:35 +00:00
Owen Anderson
ba05ead9db Fix error in the Win32 implementation pointed out by Howard Su. 
llvm-svn: 74248
 2009-06-26 00:51:20 +00:00
Chris Lattner
05eb63598b start adding logic in isel to determine asm printer semantics, step N of M. 
llvm-svn: 74246
 2009-06-26 00:43:52 +00:00
Dan Gohman
71b1c43d91 Change this code to a form about which VC++ reportedly isn't unhappy. 
llvm-svn: 74243
 2009-06-26 00:35:12 +00:00
Dan Gohman
ba8760719f Fix LCSSA to avoid emitting a PHI node for the unwind destination of 
an invoke instruction, since the value isn't really live across that
edge.

llvm-svn: 74242
 2009-06-26 00:31:13 +00:00
Evan Cheng
2eb1525e2a Add a note about commuting conditional move. 
llvm-svn: 74241
 2009-06-26 00:28:48 +00:00
Dan Gohman
3983d5070b Minor code simplification. 
llvm-svn: 74240
 2009-06-26 00:26:03 +00:00
Evan Cheng
f23c8a5c8a These are done / no longer applicable. 
llvm-svn: 74239
 2009-06-26 00:25:27 +00:00
Evan Cheng
4f0e461e97 Mark a bunch of instructions commutable. 
llvm-svn: 74237
 2009-06-26 00:19:44 +00:00
Evan Cheng
e45355b804 tst is also commutable. 
llvm-svn: 74236
 2009-06-26 00:19:07 +00:00
Owen Anderson
4aee97b0e3 Committed the wrong version in my last commit. 
llvm-svn: 74235
 2009-06-26 00:17:05 +00:00
Owen Anderson
22fb1f445e Privatize a static variable. 
llvm-svn: 74234
 2009-06-26 00:15:27 +00:00
Owen Anderson
40fd8971d3 Guards for the compiler driver plugin list. 
llvm-svn: 74230
 2009-06-26 00:06:28 +00:00
Evan Cheng
4ac765118d Select ADC, SBC, and RSC instead of the ADCS, SBCS, and RSCS when the carry bit def is not used. 
llvm-svn: 74228
 2009-06-25 23:34:10 +00:00
Owen Anderson
5417ad7e3b Support thread-local pretty stack traces. 
llvm-svn: 74227
 2009-06-25 23:31:33 +00:00
Owen Anderson
3a892a63b7 Add support for const thread locals. 
llvm-svn: 74226
 2009-06-25 23:31:18 +00:00
Owen Anderson
8d5f9675c7 Fix typo in assertion. 
llvm-svn: 74225
 2009-06-25 23:28:28 +00:00
David Goodwin
74414108e9 Use MVN for ~t2_so_imm immediates. 
llvm-svn: 74223
 2009-06-25 23:11:21 +00:00
Owen Anderson
59ffd85020 Add a configure test for pthread_getspecific, and use it when building ThreadLocal. 
llvm-svn: 74222
 2009-06-25 23:10:26 +00:00
David Goodwin
a0ed5f6847 Add Def/Use of CPSR for Thumb-1 instructions. 
llvm-svn: 74219
 2009-06-25 22:49:55 +00:00
Devang Patel
32bbebe82f Simplify. 
llvm-svn: 74215
 2009-06-25 22:36:02 +00:00
Evan Cheng
331e7cc684 Unbreak mingw build. Patch by Viktor Kutuzov. 
llvm-svn: 74212
 2009-06-25 22:04:44 +00:00
Owen Anderson
aef431f9cb Update cmake build files. 
llvm-svn: 74210
 2009-06-25 21:58:34 +00:00
Owen Anderson
e716e57779 Add a class for supporting platform independent thread-local storage. 
Windows people, please double-check/patch this.

llvm-svn: 74209
 2009-06-25 21:58:01 +00:00
Chris Lattner
6a77e841e8 add targetflags to jump tables and constant pool entries. 
llvm-svn: 74204
 2009-06-25 21:35:31 +00:00
Chris Lattner
f94959f1a3 allow setting target operand flags on TargetGlobalAddress nodes. 
llvm-svn: 74203
 2009-06-25 21:21:14 +00:00
Daniel Dunbar
3d3f776dc9 MC: Truncate values when printing, to keep 'as' happy. 
llvm-svn: 74201
 2009-06-25 21:03:18 +00:00
Evan Cheng
0cced3daa8 ISD::ADDE / ISD::SUBE updates the carry bit so they should isle to ADCS and SBCS / RSCS. 
llvm-svn: 74200
 2009-06-25 20:59:23 +00:00
Chris Lattner
55fdaaf6e7 start bringing targetoperand flags into isel, first up, ExternalSymbol. 
llvm-svn: 74199
 2009-06-25 18:45:50 +00:00
Mikhail Glushenkov
e665ff7b38 Make -save-temps behave like in GCC 4.5. 
The -save-temps option now behaves like described in GCC 4.5 release notes
(you can specify output directory for temporary files with -save-temps=obj
-o $DIRNAME). I do not have GCC 4.5 installed, so if there are any
inconsistencies between llvmc and GCC in the implementation of this
feature, please let me know.

llvm-svn: 74190
 2009-06-25 18:20:10 +00:00
Owen Anderson
7e0ff6ab63 Privatize this map. 
llvm-svn: 74189
 2009-06-25 18:13:04 +00:00
Owen Anderson
d1598408ce Guard dynamic library loading. 
I did my best at implementing this for Win32, but I don't have a way to test it.
Can someone with access to a Win32 machine test/fix this?

llvm-svn: 74188
 2009-06-25 18:12:44 +00:00
Sanjiv Gupta
a68f1e8cbf Added floating point conditional operations support via libcalls. 
llvm-svn: 74187
 2009-06-25 18:12:06 +00:00
Chris Lattner
2aaaf51beb simplify shouldPrintPLT 
llvm-svn: 74186
 2009-06-25 17:58:52 +00:00
David Goodwin
c72bad36d7 Test commit 
llvm-svn: 74185
 2009-06-25 17:52:32 +00:00
Chris Lattner
8c562c2f76 Use target-specific machine operand flags to eliminate a gross hack 
from the asmprinter.

llvm-svn: 74184
 2009-06-25 17:38:33 +00:00
Chris Lattner
f70f8cc399 just eliminate the code entirely! 
llvm-svn: 74183
 2009-06-25 17:28:07 +00:00
Owen Anderson
76d92148a7 Provide guards for this shared structure. I'm not sure this actually needs 
to be shared, but how/where to privatize it is not immediately clear to me.

If any SelectionDAG experts see a better solution, please share!

llvm-svn: 74180
 2009-06-25 17:09:00 +00:00
Owen Anderson
7bc2987c5c Privatize some more debug-related static data. 
llvm-svn: 74179
 2009-06-25 16:55:32 +00:00
Owen Anderson
e52105541d Use a more correct atomic increment style. This isn't really necessary in 
this case, but it should help avoid issues in the future.

llvm-svn: 74178
 2009-06-25 16:32:45 +00:00
Bob Wilson
38779c951a Revert 74164. We'll want to use this method later. 
llvm-svn: 74176
 2009-06-25 16:03:07 +00:00
Sanjiv Gupta
f81b920608 Identify unconditional gotos and generate a page sel instructions before them. 
llvm-svn: 74172
 2009-06-25 11:03:14 +00:00
Bruno Cardoso Lopes
5e0be0b9a1 Support Constant Pool Sections 
Add section symbols to the symbol table

llvm-svn: 74170
 2009-06-25 07:36:24 +00:00
Bob Wilson
ef8fd818bf Remove unused hasV6T2Ops method. We already have a separate feature to 
identify Thumb2.

llvm-svn: 74164
 2009-06-25 05:20:31 +00:00
Douglas Gregor
7841f61ced Add missing dependencies to the CMake build system. 
llvm-svn: 74161
 2009-06-25 05:03:06 +00:00
Chris Lattner
fa1359fb85 add file to cmake 
llvm-svn: 74159
 2009-06-25 04:29:08 +00:00
Evan Cheng
a3be8cba60 Change thumb2 instruction definitions so if-converter so add predicate operands and / or flip the 's' bit to set the condition flag. 
llvm-svn: 74158
 2009-06-25 02:08:06 +00:00
Jeffrey Yasskin
c431f61520 Add a JITEventListener interface that gets called back when a new function is 
emitted or the machine code for a function is freed.  Chris mentioned that we
may also want a notification when a stub is emitted, but that'll be a future
change.  I intend to use this to tell oprofile where functions are emitted and
what lines correspond to what addresses.

llvm-svn: 74157
 2009-06-25 02:04:04 +00:00
Evan Cheng
e31583bf2a Add thumb2 add sp. 
llvm-svn: 74156
 2009-06-25 01:21:30 +00:00
Chris Lattner
ec41c5f7ac fix comments to be correct. 
llvm-svn: 74154
 2009-06-25 01:15:47 +00:00
Evan Cheng
8e61610960 Some reorg and additional comments. 
llvm-svn: 74152
 2009-06-25 01:05:06 +00:00
Devang Patel
d98b076409 No need to code gen MDNodes 
llvm-svn: 74150
 2009-06-25 00:47:42 +00:00
Bill Wendling
edfdb32218 My guess is that RegInfo should only call the Allocator.Deallocator if it's not 
null.

llvm-svn: 74147
 2009-06-25 00:32:48 +00:00
Dan Gohman
68902a1ad2 Reword a few comments. 
llvm-svn: 74146
 2009-06-25 00:22:44 +00:00
Owen Anderson
696fd9b29e Now with EVEN FEWER statics! 
llvm-svn: 74143
 2009-06-25 00:04:15 +00:00
Evan Cheng
e8c58ee743 Add Thumb2 pc relative add. 
llvm-svn: 74141
 2009-06-24 23:47:58 +00:00
Owen Anderson
a21f94d6ba Fewer static variables, part 3 of many. 
llvm-svn: 74140
 2009-06-24 23:41:44 +00:00
Evan Cheng
32695e2413 80 col violation. 
llvm-svn: 74138
 2009-06-24 23:14:45 +00:00
Owen Anderson
e194f62a43 Down with _even more_ statics! 
llvm-svn: 74137
 2009-06-24 23:13:56 +00:00
Owen Anderson
7b32a5b971 Down with statics! 
llvm-svn: 74134
 2009-06-24 22:53:20 +00:00
Devang Patel
715a8c1154 Add constructor to create MDString using std::string 
llvm-svn: 74133
 2009-06-24 22:42:39 +00:00
Owen Anderson
9832095b30 Move local statics to per-instance variables. 
llvm-svn: 74132
 2009-06-24 22:28:12 +00:00
Owen Anderson
74964377a6 Make this thread-safe. 
llvm-svn: 74129
 2009-06-24 22:16:52 +00:00
Owen Anderson
68b4197830 Get rid of a static boolean. 
llvm-svn: 74125
 2009-06-24 22:08:59 +00:00
Andreas Bolka
141dde15bb Scaffolding for LDA pass. 
llvm-svn: 74120
 2009-06-24 21:29:13 +00:00
Bob Wilson
653f309975 Fix the Ocaml bindings for the ExecutionEngine: with the change to build 
libraries instead of relinked objects, the interpreter, JIT, and native
target libraries were not being linked in to an ocaml program using the
ExecutionEngine.

llvm-svn: 74117
 2009-06-24 21:09:18 +00:00
Lang Hames
b9f524d565 Completed basic intra block split implementation. 
llvm-svn: 74114
 2009-06-24 20:46:24 +00:00
Chris Lattner
1417c35242 move some functions, add a FIXME, use PrintPICBaseSymbol to print the 
picbase instead of inlining it.

llvm-svn: 74111
 2009-06-24 19:44:36 +00:00
David Greene
08b3d807e8 This increases the maximum for MVT::LAST_VALUETYPE 
This change doubles the allowable value for MVT::LAST_VALUETYPE. It does
this by doing several things.

1. Introduces MVT::MAX_ALLOWED_LAST_VALUETYPE which in this change has a
value of 64.  This value contains the current maximum for the
MVT::LAST_VALUETYPE.

2. Instead of checking "MVT::LAST_VALUETYPE <= 32", all of those uses
now become "MVT::LAST_VALUETYPE <= MVT::MAX_ALLOWED_LAST_VALUETYPE"

3. Changes the dimension of the ValueTypeActions from 2 elements to four
elements and adds comments ahead of the declaration indicating the it is
"(MVT::MAX_ALLOWED_LAST_VALUETYPE/32) * 2".  This at least lets us find
what is affected if and when MVT::MAX_ALLOWED_LAST_VALUETYPE gets
changed.

4. Adds initializers for the new elements of ValueTypeActions.

This does NOT add any types in MVT. That would be done separately.

This doubles the size of ValueTypeActions from 64 bits to 128 bits and
gives us the freedom to add more types for AVX.

llvm-svn: 74110
 2009-06-24 19:41:55 +00:00
Daniel Dunbar
5f2b8ca5e4 Sketch streamer support for .align, .org functionality. 
llvm-svn: 74109
 2009-06-24 19:25:34 +00:00
Chris Lattner
fda56cf68a reimplement getPICLabelString as PrintPICBaseSymbol to eliminate std::string heap thrashing. 
llvm-svn: 74105
 2009-06-24 19:19:16 +00:00
Chris Lattner
ee30c14d3b sink management of DwarfWriter & MachineModuleInfo into the AsmPrinter base class. 
llvm-svn: 74101
 2009-06-24 19:09:55 +00:00
Chris Lattner
d59a5b9f8b sink dwarf finalization out of each target into AsmPrinter::doFinalization 
llvm-svn: 74097
 2009-06-24 18:54:37 +00:00
Chris Lattner
0690755320 eliminate the ExtWeakSymbols set from AsmPrinter. This eliminates 
a bunch of code from all the targets, and eliminates nondeterministic
ordering of directives being emitted in the output.

llvm-svn: 74096
 2009-06-24 18:52:01 +00:00
Chris Lattner
afabad6552 only emit one .align for all the hidden gv stubs instead of one for each. 
llvm-svn: 74094
 2009-06-24 18:24:42 +00:00
Chris Lattner
0cb01a746f inline print*Stub and rearrange function stub printing to more closely match 
gv and hiddengv stub printing.

llvm-svn: 74093
 2009-06-24 18:24:09 +00:00
Chris Lattner
ce2854f097 remove dead code now that personality functions don't print stubs directly. 
llvm-svn: 74092
 2009-06-24 18:19:01 +00:00
Chris Lattner
7bc5373357 remove now-dead argument. 
llvm-svn: 74091
 2009-06-24 18:17:56 +00:00
Chris Lattner
3dc8c13453 simplify personality function stub printing to use the mangler and 
decorateName like other stuff instead of special casing _.  Also, stick
it into GVStubs and let the normal stub printer print the stub instead 
of doing it manually.

llvm-svn: 74090
 2009-06-24 18:17:00 +00:00
Chris Lattner
03ce0b9410 remove dead argument 
llvm-svn: 74089
 2009-06-24 18:00:11 +00:00
Chris Lattner
cabe904f79 Rearrange some stuff in MachineOperand and add a new TargetFlags field. 
llvm-svn: 74087
 2009-06-24 17:54:48 +00:00
Owen Anderson
90f7655f57 Get rid of the global CFGOnly flag by threading a ShortNames parameters through the GraphViz rendering code. 
Update other uses in the codebase for this change.

llvm-svn: 74084
 2009-06-24 17:37:09 +00:00
Dale Johannesen
5bad20bda8 Rewrite 73900 per Duncan's suggestion. 
llvm-svn: 74082
 2009-06-24 17:11:31 +00:00
Daniel Dunbar
082dc70875 We decided to not worry about Atoms for now, it should be straightforward to 
reintroduce them later.

Also, don't require MCSection* when creating a symbol.

llvm-svn: 74081
 2009-06-24 17:00:42 +00:00
Daniel Dunbar
4f0c4c766c MCStreamer: Add a few more "symbol attributes". 
llvm-svn: 74077
 2009-06-24 16:36:52 +00:00
Daniel Dunbar
691e6009bd MCStreamer: Test printing values. 
llvm-svn: 74076
 2009-06-24 16:05:35 +00:00
Dan Gohman
34b8ca6976 Minor whitespace cleanups. 
llvm-svn: 74074
 2009-06-24 14:49:00 +00:00
Dan Gohman
b4e1f166e1 Simplify [su]max(MAX, n) to MAX. This comes up in loop tripcount 
computations in loops with multiple exits.

Adjust the testcase for PR4436 so that the relevant portion isn't
optimized away.

llvm-svn: 74073
 2009-06-24 14:46:22 +00:00
Dan Gohman
c2c1e1ff38 When inserting code into a loop preheader, insert it before the 
terminator, instead of after the last phi. This fixes a bug
exposed by ScalarEvolution analyzing more kinds of loops.
This fixes PR4436.

llvm-svn: 74072
 2009-06-24 14:31:06 +00:00
Duncan Sands
070da26191 Add new files to cmake list. 
llvm-svn: 74071
 2009-06-24 10:03:44 +00:00
Chris Lattner
7eb17b387d factor some code better. 
llvm-svn: 74067
 2009-06-24 05:47:59 +00:00
Chris Lattner
9bce404faa wire up support for MCContext/MCStreamer in -experimental-asm-printer mode. 
llvm-svn: 74066
 2009-06-24 05:46:28 +00:00
Chris Lattner
07463b0a0a remove dead makefile flags. 
llvm-svn: 74065
 2009-06-24 05:29:56 +00:00
Dan Gohman
19c3326fc9 Delete some orphaned comments, fix some 80-column violations, 
and tidy up a few other formatting issues.

llvm-svn: 74060
 2009-06-24 04:48:43 +00:00
Chris Lattner
61a6509f6a add trivial support for passing label definitions through the MCStreamer. 
This is suboptimal in several aspects, see the commented out assertion.
I need to talk to Daniel about this.

llvm-svn: 74057
 2009-06-24 04:31:49 +00:00
Lang Hames
38bf7cf4e2 Fixed a bug in LiveInterval scaling (failure to scale VNI defs correctly), removed old TODO comments. 
llvm-svn: 74054
 2009-06-24 02:17:32 +00:00
Evan Cheng
7292cadf06 Fix support for inline asm input / output operand tying when operand spans across multiple registers (e.g. two i64 operands in 32-bit mode). 
llvm-svn: 74053
 2009-06-24 02:05:51 +00:00
Dan Gohman
4f4bda36df Extend ScalarEvolution's multiple-exit support to compute exact 
trip counts in more cases.

Generalize ScalarEvolution's isLoopGuardedByCond code to recognize
And and Or conditions, splitting the code out into an
isNecessaryCond helper function so that it can evaluate Ands and Ors
recursively, and make SCEVExpander be much more aggressive about
hoisting instructions out of loops.

test/CodeGen/X86/pr3495.ll has an additional instruction now, but
it appears to be due to an arbitrary register allocation difference.

llvm-svn: 74048
 2009-06-24 01:18:18 +00:00
Nick Lewycky
68273b013b Unbreak build on Linux by removing Darwinism. 
llvm-svn: 74046
 2009-06-24 01:08:42 +00:00
Dan Gohman
6f0aa30f94 Teach GetMinSignBits about SCEVAddExprs. 
llvm-svn: 74045
 2009-06-24 01:05:09 +00:00
Daniel Dunbar
0e5051b251 Start MCAsmStreamer implementation. 
llvm-svn: 74044
 2009-06-24 01:03:06 +00:00
Dan Gohman
661e8b54fa Revert this accidental commit. 
llvm-svn: 74042
 2009-06-24 00:55:55 +00:00
Dan Gohman
3bf5d76081 Move the special cases for constants out of getUnknown and into 
createSCEV. Also, recognize UndefValue in createSCEV.

Change getIntegerSCEV's comment to avoid mentioning FP types,
and re-implement it in terms of getConstant instead of getUnknown.

llvm-svn: 74041
 2009-06-24 00:54:57 +00:00
Dan Gohman
0a2dbfc356 Use ScalarEvolution::getConstant instead of getUnknown to create 
SCEVConstants. This cleanup is a step toward letting getUnknown
be simpler.

llvm-svn: 74037
 2009-06-24 00:38:39 +00:00
Dan Gohman
774c9da9c6 Include the maximum trip count expression in ScalarEvolution's print output. 
llvm-svn: 74035
 2009-06-24 00:33:16 +00:00
Dan Gohman
9ccdc738a9 Add an isAllOnesValue utility function, similar to isZero and isOne. 
llvm-svn: 74032
 2009-06-24 00:30:26 +00:00
Dan Gohman
1eb6954545 Don't emit a redundant BitCastInst if the value to be defined in the 
preheader is already an instruction.

llvm-svn: 74031
 2009-06-24 00:28:59 +00:00
Owen Anderson
446169df49 Guard the listeners list. Unfortunately, this requires a real static rather 
than a managed static because other managed statics can (and do) access this
list in their destructors.  Yes, I know it's horrible.

llvm-svn: 74029
 2009-06-24 00:25:42 +00:00
Bob Wilson
7bd642b80c Provide InitializeAllTargets and InitializeNativeTarget functions in the 
C bindings.  Change all the backend "Initialize" functions to have C linkage.
Change the "llvm/Config/Targets.def" header to use C-style comments to avoid
compile warnings.

llvm-svn: 74026
 2009-06-23 23:59:40 +00:00
Daniel Dunbar
813ea8a8a7 Update for MCImm -> MCValue rename. 
llvm-svn: 74024
 2009-06-23 23:39:15 +00:00
Sean Callanan
a227b42ac0 Test commit: fixed spacing. 
llvm-svn: 74022
 2009-06-23 23:25:37 +00:00
Devang Patel
5fe5a578c7 It is not a good idea to have data member's name match argument's name. In fact, it is a simple receipe to waste an hour or so. 
llvm-svn: 74018
 2009-06-23 22:25:41 +00:00
Devang Patel
72bc2b09af Use getReturnTypeName() to print return type. 
llvm-svn: 74017
 2009-06-23 22:23:13 +00:00
Daniel Dunbar
323218db15 Start flushing out MCContext. 
- Lives inside new library lib/MC (LLVMMC.a)

llvm-svn: 74013
 2009-06-23 22:01:43 +00:00
Owen Anderson
2d65e89f30 Use atomic operations when accessing statistics, and make the lazy initialization of statistics actually threadsafe. 
llvm-svn: 74005
 2009-06-23 21:19:38 +00:00
Owen Anderson
5bda03a404 Add atomic multiply and divide operations, built on top of CompareAndSwap. 
llvm-svn: 74004
 2009-06-23 21:19:04 +00:00
Owen Anderson
226e1d8bda Make timers threadsafe again. This isn't quite as nice as I'd hoped (it uses locking rather than atomic arithmetic), 
but should work on all the platforms we care about.

I might revisit this if a totally awesome way to do it occurs to me.

llvm-svn: 74002
 2009-06-23 20:52:29 +00:00
Owen Anderson
c11dfb46c1 Revert my last series of commits related to Timer and 64-bit atomics. Not all the targets 
we care about are capable of supporting it.

llvm-svn: 73993
 2009-06-23 20:17:22 +00:00
Evan Cheng
4dcc3bd23b Test instructions operands were printed in the wrong order. 
llvm-svn: 73990
 2009-06-23 19:56:37 +00:00
Bill Wendling
d85f7acc83 "The MMX_MASKMOVQ and MMX_MASKMOVQ64 instructions are labeled as MRMDestMem 
instructions, which implies that there is an explicit memory operand.  There is
(however) no explicit memory operand; although this is a store, the only memory
operand is implicit, indicated by DS:EDI.  This causes the table-generation code
for the disassembler to report an error."

Patch by Sean Callanan!

llvm-svn: 73989
 2009-06-23 19:52:59 +00:00
Lang Hames
7640e42869 Switched size_t to int64_t to prevent type mismatch in call to max. 
llvm-svn: 73988
 2009-06-23 19:49:23 +00:00
Evan Cheng
eaad82627b Proper patterns for thumb2 shift and rotate instructions. 
llvm-svn: 73987
 2009-06-23 19:39:13 +00:00
Evan Cheng
4fc8a75ae1 Code clean up. 
llvm-svn: 73986
 2009-06-23 19:38:34 +00:00
Evan Cheng
1333ee8eb6 Add IsThumb1Only to most 16-bit thumb instructions since we want to isel 32-bit instructions when they are available. 
llvm-svn: 73985
 2009-06-23 19:38:13 +00:00
Owen Anderson
c2d02066d0 Atomic ops that do arithmetic use signed arithmetic. 
llvm-svn: 73980
 2009-06-23 18:30:27 +00:00
Owen Anderson
27a85303fe Actually, these need to be signed integers, not unsigned. 
llvm-svn: 73978
 2009-06-23 18:21:13 +00:00
Evan Cheng
b7077f2943 Rename SelectShifterOperand to SelectThumb2ShifterOperandReg. 
llvm-svn: 73975
 2009-06-23 18:14:38 +00:00
Owen Anderson
7b3570b242 Use 64-bit integer counters for tracking time, rather than doubles. This will be more atomic op friendly. 
llvm-svn: 73974
 2009-06-23 18:12:30 +00:00
Owen Anderson
1bea9b9158 Label the existing atomic functions as 32-bit specific, and add a 64-bit one that will be useful in 
the near future.

llvm-svn: 73971
 2009-06-23 18:01:04 +00:00
Douglas Gregor
3ca1e68417 Eliminate object-relinking support from CMake. Fixes PR 4429 and 
cleans up the CMake-based build system a bit. Started by a patch from
Xerxes Rånby.

llvm-svn: 73969
 2009-06-23 17:57:35 +00:00
Evan Cheng
73e4b03dc8 Obvious typo. 
llvm-svn: 73967
 2009-06-23 17:54:26 +00:00
Evan Cheng
3e8033f7f7 Initial Thumb2 support. Majority of the work is done by David Goodwin. There are 
also some contribution from Jim Grosbach, Bob Wilson, and Evan Cheng.

I've done my best to consolidate the patches with those that were done by
Viktor Kutuzov and Anton Korzh from Access Softek, Inc. Let me know if missed
anything. I've completely reorganized the thumb2 td file, made more extensive
uses of multiclass, etc.

Test cases will be contributed later after I re-organize what's in svn first.

llvm-svn: 73965
 2009-06-23 17:48:47 +00:00
Owen Anderson
e0ff9fb130 Add an atomic add operation. 
llvm-svn: 73964
 2009-06-23 17:39:31 +00:00
Owen Anderson
24a1453189 Make the lazy initialization of DefaultTimerGroup threadsafe. 
llvm-svn: 73963
 2009-06-23 17:33:37 +00:00
Owen Anderson
0cab9cae36 Revert r73923, which broke clang. 
llvm-svn: 73957
 2009-06-23 16:36:10 +00:00
Sanjiv Gupta
9af2c63924 Fold the add (ptr, offset) into ptr[offset] only if the offset is small enough. movwi and moviw allow value of 5-bits only (i.e. 32). 
llvm-svn: 73953
 2009-06-23 07:10:19 +00:00
Evan Cheng
e950c375ea Minor reorg. 
llvm-svn: 73948
 2009-06-23 05:25:29 +00:00
Evan Cheng
92a49d75e4 Replace isTwoAddress with operand constraint. 
llvm-svn: 73947
 2009-06-23 05:23:49 +00:00
Bruno Cardoso Lopes
bd023b8ebe Use a default alignment for data and bss sections. 
Only pad when the section size > 0 and move the code that deals
with globals initializers to a place we know for sure the global
is initialized.

llvm-svn: 73944
 2009-06-23 04:39:27 +00:00
Owen Anderson
b571916820 Guard the layout info object. 
llvm-svn: 73928
 2009-06-23 00:21:15 +00:00
Owen Anderson
7bce26b269 Guard the plugin loader. 
llvm-svn: 73925
 2009-06-23 00:02:39 +00:00
Owen Anderson
f00516f54d Add guards around timer groups, which can be shared. 
llvm-svn: 73923
 2009-06-22 23:37:06 +00:00
Dan Gohman
058143a236 Fix a bug in the trip-count computation with And/Or. If either of the 
sides is CouldNotCompute, the resulting exact count must be CouldNotCompute.

llvm-svn: 73920
 2009-06-22 23:28:56 +00:00
Bob Wilson
6db76aaf10 Add support for ARM's Advanced SIMD (NEON) instruction set. 
This is still a work in progress but most of the NEON instruction set
is supported.

llvm-svn: 73919
 2009-06-22 23:27:02 +00:00
Owen Anderson
9826df9126 Guard the statistics table. 
llvm-svn: 73916
 2009-06-22 23:08:27 +00:00
Owen Anderson
d6704d5985 Guard the global annotation tables. 
llvm-svn: 73913
 2009-06-22 22:44:15 +00:00
Owen Anderson
81cb764902 Add locking around the external function lookup table for the interpreter. 
llvm-svn: 73912
 2009-06-22 22:30:56 +00:00
Owen Anderson
3c420a892f Remove unneeded #include. 
llvm-svn: 73911
 2009-06-22 22:09:07 +00:00
Dan Gohman
b4f58ad636 Fix a few minor issues that were exposed by the removal of SCEVHandle. 
llvm-svn: 73910
 2009-06-22 22:08:45 +00:00
Bob Wilson
48de87abcb Add explicit types for shift count constants. This is in preparation for 
another change that makes the types ambiguous (at least as far as tablegen
is concerned).

llvm-svn: 73909
 2009-06-22 22:08:29 +00:00
Dan Gohman
b85ac02513 Fix llvm::ComputeNumSignBits to handle pointer types 
conservatively correctly, instead of aborting.

llvm-svn: 73908
 2009-06-22 22:02:32 +00:00
Owen Anderson
422b2c613b Remove the parent pointer from SCEV, since it did not end up being needed. 
llvm-svn: 73907
 2009-06-22 21:57:23 +00:00
Owen Anderson
c023151c9f SCEVHandle is no more! 
llvm-svn: 73906
 2009-06-22 21:39:50 +00:00
Bob Wilson
6e81f12950 Use thumb2 for ARM architectures V6T2 and later. Fix a bug in checking 
for "thumb" and add a check for V6T2.

llvm-svn: 73905
 2009-06-22 21:28:22 +00:00
Dan Gohman
54899b84bc Fix some typos that Duncan noticed. 
llvm-svn: 73903
 2009-06-22 21:10:22 +00:00
Bob Wilson
0c2c5f65e2 For Darwin on ARMv6 and newer, make register r9 available for use as a 
caller-saved register.

llvm-svn: 73901
 2009-06-22 21:01:46 +00:00
Dale Johannesen
e577db0efd Fix memcpy expansion so it won't generate invalid 
types for the target (I think).  This was breaking
the PPC32 calling sequence.

llvm-svn: 73900
 2009-06-22 20:59:07 +00:00
Evan Cheng
2410955c62 Fix another register coalescer crash: forgot to check if the instruction being updated has already been coalesced. 
llvm-svn: 73898
 2009-06-22 20:49:32 +00:00
Bruno Cardoso Lopes
4615b9cdf9 Use different functions to emit the string and symbol tables. 
llvm-svn: 73895
 2009-06-22 19:29:56 +00:00
Bruno Cardoso Lopes
7b196ba30e Add more methods to gather target specific elf stuff 
Support for .text relocations, implementing TargetELFWriter overloaded methods for x86/x86_64.
Use a map to track global values to their symbol table indexes
Code cleanup and small fixes

llvm-svn: 73894
 2009-06-22 19:16:16 +00:00
Evan Cheng
b37e7e24d0 hasFP should return true if frame address is taken. 
llvm-svn: 73893
 2009-06-22 18:38:48 +00:00
Owen Anderson
83b6bbdcb4 Banish global state from ScalarEvolution! SCEV uniquing is now done by tables attached to the ScalarEvolution pass. 
This also throws out the SCEV reference counting scheme, as the the SCEVs now have a lifetime controlled by the
ScalarEvolution pass.

Note that SCEVHandle is now a no-op, and will be remove in a future commit.

llvm-svn: 73892
 2009-06-22 18:25:46 +00:00
Bob Wilson
c859e1c6bb Fix llvm-gcc build for armv6t2 and later architectures. The hasV6T2Ops 
predicate does not check if Thumb mode is enabled, and when in ARM mode
there are still some checks for constant-pool use that need to run.

llvm-svn: 73887
 2009-06-22 17:29:13 +00:00
Dan Gohman
30b38faa05 Make use of getUMinFromMismatchedTypes when computing backedge-taken 
counts for loops with multiple exits, replacing more conservative code
which only handled constants. This is derived from a patch by
Nick Lewycky.

This also fixes llc aborts in ClamAV and others, as
getUMinFromMismatchedTypes takes care of balancing the types before
working with them.

llvm-svn: 73884
 2009-06-22 15:09:28 +00:00
Dan Gohman
cc245913e3 Add a getUMinFromMismatchedTypes helper function. 
llvm-svn: 73883
 2009-06-22 15:03:27 +00:00
Dan Gohman
d65752db50 Factor out code for computing umin and smin for SCEV expressions into 
helper functions. Based on a patch by Nick Lewycky.

llvm-svn: 73869
 2009-06-22 03:18:45 +00:00
Dan Gohman
db7860aa40 Teach ScalarEvolution how to analyze loops with multiple exit 
blocks, and also exit blocks with multiple conditions (combined
with (bitwise) ands and ors). It's often infeasible to compute an
exact trip count in such cases, but a useful upper bound can often
be found.

llvm-svn: 73866
 2009-06-22 00:31:57 +00:00
Dan Gohman
b2c544ddbd Delete an unused variable. 
llvm-svn: 73865
 2009-06-22 00:19:17 +00:00
Dan Gohman
8426522d55 Fix this code to correctly handle loops with multiple exits. Until 
now, this hasn't mattered, because ScalarEvolution hasn't been able
to compute trip counts for loops with multiple exits. But it will
soon.

llvm-svn: 73864
 2009-06-22 00:15:15 +00:00
Dan Gohman
1a33c92bb2 Rename a variable for consistency with the ExitBlock vs ExitingBlock 
terminology that LoopInfo uses.

llvm-svn: 73863
 2009-06-21 23:48:38 +00:00
Dan Gohman
eb0a67278b Fix ScalarEvolution's backedge-taken count computations to check for 
overflow when computing a integer division to round up.

Thanks to Nick Lewycky for noticing this!

llvm-svn: 73862
 2009-06-21 23:46:38 +00:00
Chris Lattner
dd95ab3ca9 rename SourceMgr::PrintError to PrintMessage. 
llvm-svn: 73861
 2009-06-21 21:22:11 +00:00
Rafael Espindola
373c6bdbc5 Fix PR4185. 
Handle FpSET_ST0_80 being used when ST0 is still alive.

llvm-svn: 73850
 2009-06-21 12:02:51 +00:00
Chris Lattner
c865ea76a6 move include searching logic from TGLexer to SourceMgr. 
llvm-svn: 73845
 2009-06-21 05:06:04 +00:00
Chris Lattner
5b9a2d79c0 Rename TGSourceMgr -> SourceMgr. 
llvm-svn: 73844
 2009-06-21 03:41:50 +00:00
Chris Lattner
4ff2620742 rename TGLoc -> SMLoc. 
llvm-svn: 73843
 2009-06-21 03:39:35 +00:00
Chris Lattner
4ed87b8790 move TGSourceMgr class out of TableGen into libsupport. 
llvm-svn: 73842
 2009-06-21 03:36:54 +00:00
Chris Lattner
06e180b758 simplify closing paren and (rip) printing. 
llvm-svn: 73841
 2009-06-21 02:22:53 +00:00
Chris Lattner
e358de060d indentation fix 
llvm-svn: 73840
 2009-06-21 02:22:34 +00:00
Nick Lewycky
4020821885 Expand this test to handle more cases (remainder and shifts) of zero. 
llvm-svn: 73839
 2009-06-21 01:56:41 +00:00
Chris Lattner
481746a193 remove #if 0 code 
llvm-svn: 73837
 2009-06-21 01:48:49 +00:00
Chris Lattner
5ef06d833d cosmetic changes. 
llvm-svn: 73836
 2009-06-21 01:27:55 +00:00
Chris Lattner
affcc71da2 implement PR4424: 0/x is always 0 for integer division. 
llvm-svn: 73835
 2009-06-21 01:15:55 +00:00
Chris Lattner
580eecebbd change TLS_ADDR lowering to lower to a real mem operand, instead of matching as 
a global with that gets printed with the :mem modifier.  All operands to lea's 
should be handled with the lea32mem operand kind, and this allows the TLS stuff
to do this.  There are several better ways to do this, but I went for the minimal
change since I can't really test this (beyond make check).

This also makes the use of EBX explicit in the operand list in the 32-bit, 
instead of implicit in the instruction.

llvm-svn: 73834
 2009-06-20 20:38:48 +00:00
Chris Lattner
f1510099c3 remove dead code, the main codepath never has to deal 
with MBB's.

llvm-svn: 73830
 2009-06-20 19:34:47 +00:00
Chris Lattner
12ba79a2b7 eliminate the "call" operand modifier from the asm descriptions, modeling 
it as a pcrel immediate instead.  This gets pc-rel weirdness out of the
main printoperand codepath.

llvm-svn: 73829
 2009-06-20 19:34:09 +00:00
Chris Lattner
b0324ab35a fix edit-o 
llvm-svn: 73824
 2009-06-20 08:13:12 +00:00
Chris Lattner
3ffae2f77e some comments and cleanup 
llvm-svn: 73818
 2009-06-20 07:59:10 +00:00
Chris Lattner
7b43ca847d implement support for lowering subregs when preparing to print 
LEA64_32r, eliminating a bunch of modifier logic stuff on addr modes.

Implement support for printing mbb labels as operands.

llvm-svn: 73817
 2009-06-20 07:03:18 +00:00
Evan Cheng
b45918e5bb Fix PR4419: handle defs of partial uses. 
llvm-svn: 73816
 2009-06-20 04:34:51 +00:00
Devang Patel
a011b501a0 Remove unused field. 
llvm-svn: 73815
 2009-06-20 01:07:54 +00:00
Devang Patel
7003004d00 Initialize MMI 
llvm-svn: 73813
 2009-06-20 01:00:07 +00:00
Chris Lattner
18485eef13 hook up printMemReference. 
llvm-svn: 73811
 2009-06-20 00:50:32 +00:00
Chris Lattner
19fc691c16 Start implementing translation of MachineInstr to MCInst. Next 
step is to make tblgen generate something more appropriate for MCInst,
and generate calls to operand translation routines where needed.
This includes a bunch of #if 0 code which will slowly be refactored into
something sensible.

llvm-svn: 73810
 2009-06-20 00:49:26 +00:00
Dan Gohman
29100270c0 Generalize isLoopGuardedByCond's checking to consider two 
SCEVUnknowns with identical Instructions to be equal. This allows
it to analze cases such as the attached testcase, where the front-end
has cloned the loop controlling expression. Along with r73805, this
lets IndVarSimplify eliminate all the sign-extend casts in the
loop in the attached testcase.

llvm-svn: 73807
 2009-06-20 00:35:32 +00:00
Owen Anderson
c1a4bbe1c8 Workaround for an... interesting bug in Darwin's pthread_rwlock_init. 
llvm-svn: 73806
 2009-06-20 00:32:27 +00:00
Dan Gohman
074c629d46 Use ScalarEvolution's new GetMinSignBits and GetMinLeadingZeros 
in the loop backedge-taken count computation of the maximum
possible trip count.

llvm-svn: 73805
 2009-06-20 00:32:22 +00:00
Owen Anderson
56b666e12a Forgot this file. 
llvm-svn: 73802
 2009-06-20 00:26:26 +00:00
Owen Anderson
733fa621f6 Revert r73790, and replace it with a significantly less ugly solution. Rather than trying to make the global reader-writer lock work, 
create separate recursive mutexes for each value map.  The recursive-ness fixes the double-acquiring issue, which having one per ValueMap
lets us continue to maintain some concurrency.

llvm-svn: 73801
 2009-06-20 00:24:58 +00:00
Chris Lattner
2e95d43f24 stub out some hacky code for wiring up the new asmprinter interfaces 
on X86.  Not useful yet.

llvm-svn: 73799
 2009-06-19 23:59:57 +00:00
Dan Gohman
a81541945b Fix a typo in a comment that Frits von Bommel noticed. 
llvm-svn: 73796
 2009-06-19 23:41:37 +00:00
Dan Gohman
d3c3963eea Make GetMinTrailingZeros a member function of ScalarEvolution, 
so that it can access the TargetData member (when available) and
use ValueTracking.h information to compute information for
SCEVUnknown Values.

Also add GetMinLeadingZeros and GetMinSignBits functions,
with minimal implementations.

llvm-svn: 73794
 2009-06-19 23:29:04 +00:00
Dan Gohman
651faa1905 Re-apply r73718, now that the fix in r73787 is in, and add a 
hand-crafted testcase which demonstrates the bug that was exposed
in 254.gap.

llvm-svn: 73793
 2009-06-19 23:23:27 +00:00
Devang Patel
e8b5c14209 DwarfWriter is used to emit EH info also. 
llvm-svn: 73792
 2009-06-19 23:21:20 +00:00
Evan Cheng
f18de63563 Enable arm pre-allocation load / store multiple optimization pass. 
llvm-svn: 73791
 2009-06-19 23:17:27 +00:00
Owen Anderson
295610c408 Fix a serious bug that would cause deadlock during abstract type refinement. The constant creation 
gets involved, and we end up trying to recursively acquire a writer lock.  The fix for this is slightly horrible,
and involves passing a boolean "locked" parameter around in Constants.cpp, but it's better than having locked and
unlocked versions of most of the code.

llvm-svn: 73790
 2009-06-19 23:16:19 +00:00
Dan Gohman
9bd151655f Fix LSR's OptimizeSMax to ignore max operators with more than 2 operands, 
which it isn't prepared to handle.

llvm-svn: 73787
 2009-06-19 23:03:46 +00:00
Devang Patel
e2b1c9a530 mv CodeGen/DebugLoc.h Support/DebugLoc.h 
llvm-svn: 73786
 2009-06-19 22:08:58 +00:00
Devang Patel
35810cd07b Move up dwarf writer initialization in common AsmPrinter class. 
llvm-svn: 73784
 2009-06-19 21:54:26 +00:00
Evan Cheng
b90241ac42 Revert 73718. It's breaking 254.gap. 
llvm-svn: 73783
 2009-06-19 21:15:06 +00:00
Anton Korobeynikov
ff313dba2f Unbreak cyclic deps 
llvm-svn: 73781
 2009-06-19 19:36:55 +00:00
Owen Anderson
47968a6dec Fix bad paste-o in the MSVC atomics. 
Patch by Иван Сорокин.

llvm-svn: 73779
 2009-06-19 18:37:50 +00:00
Owen Anderson
7f70078b63 Forgot to remove some explicit locking when it became implicit in the ValueMap. 
llvm-svn: 73778
 2009-06-19 18:34:09 +00:00
Dan Gohman
c71421c97e Make ScalarEvolution::print print getSCEVAtScope values for 
expressions, when interesting.

llvm-svn: 73776
 2009-06-19 17:49:54 +00:00
Owen Anderson
12e12ed0d4 Move the memory fences out of the path for single-threaded mode. 
llvm-svn: 73775
 2009-06-19 17:45:12 +00:00
Dan Gohman
d920fdb643 Don't (unconditionally) use getSCEVAtScope to simplify the step 
expression in IVUsers, because in the case of a use of a non-linear
addrec outside of a loop, this causes the addrec to be evaluated as
a linear addrec.

llvm-svn: 73774
 2009-06-19 17:33:15 +00:00
Owen Anderson
c17c15cb23 Fix incorrect comment pointed out by Duncan. 
llvm-svn: 73773
 2009-06-19 17:20:50 +00:00
Chris Lattner
8f6f044afd make jump threading handle lexically identical compare instructions 
as if they were multiple uses of the same instruction.  This interacts
well with the existing loadpre that j-t does to open up many new jump
threads earlier.

llvm-svn: 73768
 2009-06-19 16:27:56 +00:00
Chris Lattner
91740476a3 fix the sparc codegen to not depend on the sparc asmprinter. 
llvm-svn: 73767
 2009-06-19 15:48:10 +00:00
Duncan Sands
30dcb8401d Add support for AuroraUX. Patch by evocallaghan. 
llvm-svn: 73766
 2009-06-19 14:40:01 +00:00
Evan Cheng
706927c96a Add comments. 
llvm-svn: 73761
 2009-06-19 07:06:07 +00:00
Eli Friedman
5cccb60bad Fix for PR2484: add an SSE1 pattern for a shuffle we normally prefer to 
handle with an SSE2 instruction.

llvm-svn: 73760
 2009-06-19 07:00:55 +00:00
Evan Cheng
8f613095de Should be using Bcc (average) latency to determine if-conversion threshold, not BL. 
llvm-svn: 73759
 2009-06-19 06:56:26 +00:00
Eli Friedman
eb83635a7e Minor cleanup; fixes review comments for a previous patch. Sorry for 
taking so long to get to this!

llvm-svn: 73757
 2009-06-19 06:01:55 +00:00
Nick Lewycky
a5f89b09c6 Teach jump threading to look at comparisons between phi nodes and non-constants. 
llvm-svn: 73755
 2009-06-19 04:56:29 +00:00
Eli Friedman
b2688e9b73 Misc tweaks to Intel asm printing to make it more compatible with MASM. 
Patch by Benedict Gaster.

llvm-svn: 73753
 2009-06-19 04:48:38 +00:00
Chris Lattner
8ddc06469c Improve tail call elim to move loads above readonly calls 
when it allows forming a tail call.  Patch by Frits van
Bommel.  This implements PR4323.

llvm-svn: 73752
 2009-06-19 04:22:16 +00:00
Chris Lattner
3a683c551f part of PR4405: disable a contentious optimization for 
strcmp -> memcmp when the lengths of the strings are unknown.

Patch by Nick Lewycky!

llvm-svn: 73751
 2009-06-19 04:17:36 +00:00
Lang Hames
1bade5ff09 More VNInfo tweaking, plus a little progress on intra-block splitting. 
llvm-svn: 73750
 2009-06-19 02:17:53 +00:00
Evan Cheng
667924dc46 Transfer dead markers when a ldrd is changed into a ldm or a pair of ldr. 
llvm-svn: 73749
 2009-06-19 01:59:04 +00:00
Evan Cheng
f671ce4eba Latency information for ARM v6. It's rough and not yet hooked up. Right now we are only using branch latency to determine if-conversion limits. 
llvm-svn: 73747
 2009-06-19 01:51:50 +00:00
Eli Friedman
003abaa60d Mark a few Thumb instructions commutable; just happened to spot this 
while experimenting.  I'm reasonably sure this is correct, but please 
tell me if these instructions have some strange property which makes this
change unsafe.

llvm-svn: 73746
 2009-06-19 01:43:08 +00:00
Chris Lattner
f077552a99 add a file I missed, this goes with r73743 
llvm-svn: 73744
 2009-06-19 00:47:59 +00:00
Chris Lattner
3624754e23 Add some scaffolding for a new experimental asmprinter 
implementation.  The idea is that we want asmprinting to
work by converting MachineInstrs into a new MCInst class,
then the per-instruction asmprinter works on MCInst.  MCInst
and the new asmprinters will not depend on most of the 
llvm code generators.  This allows building diassemblers
that don't link in the whole llvm code generator.  This is
step #1 of many.

llvm-svn: 73743
 2009-06-19 00:47:33 +00:00
Chris Lattner
c2b0fd0304 merge the common darwin settings from the X86/PPC/ARM targets 
into DarwinTargetAsmInfo.cpp.  The remaining differences should
be evaluated.  It seems strange that x86/arm has .zerofill but ppc
doesn't, etc.

llvm-svn: 73742
 2009-06-19 00:08:39 +00:00
Chris Lattner
6cd267dcc5 move mangler quote handling from asm printers to TargetAsmInfo. 
llvm-svn: 73738
 2009-06-18 23:41:35 +00:00
Chris Lattner
fea7aa45b7 minor cleanup 
llvm-svn: 73737
 2009-06-18 23:33:13 +00:00
Chris Lattner
ea0ea2f4bc simplify macro debug info directive handling. 
llvm-svn: 73736
 2009-06-18 23:31:37 +00:00
Evan Cheng
7426d278ae Remove UseThumbBacktraces. Just check if subtarget is darwin. 
llvm-svn: 73734
 2009-06-18 23:14:30 +00:00
Owen Anderson
99dc404fc5 Add a parent pointer to SCEV, in preparation for getting rid of the global uniquing tables. No functionality change. 
llvm-svn: 73728
 2009-06-18 22:25:12 +00:00
Lang Hames
7f288c29af Improved PHI def marking, replaced some gotos with breaks. 
llvm-svn: 73727
 2009-06-18 22:01:47 +00:00