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32442 Commits

Author SHA1 Message Date
Nick Lewycky
cd6475ebe9 Correct the comment; this applies to fcmp too. 
llvm-svn: 82380
 2009-09-20 06:27:35 +00:00
Nick Lewycky
13510f330b Remove tab, again. 
llvm-svn: 82379
 2009-09-20 06:26:34 +00:00
Nick Lewycky
5cbc7c4ae9 Teach the constant folder how to not a cmpinst. 
llvm-svn: 82378
 2009-09-20 06:24:51 +00:00
Chris Lattner
acb70ff251 smallvectorize getExtraOptionNames 
llvm-svn: 82377
 2009-09-20 06:21:43 +00:00
Chris Lattner
cacb071233 minor cleanups. 
llvm-svn: 82375
 2009-09-20 06:18:38 +00:00
Chris Lattner
b1db248193 strength reduce further StringRef-> const char*, saving another 620 bytes. 
llvm-svn: 82372
 2009-09-20 05:53:47 +00:00
Nick Lewycky
93d1111b1c Try turning icmp(bitcast(x), bitcast(y)) into icmp(bitcast(bitcast(x)), y) in 
the hopes that the two bitcasts will merge.

llvm-svn: 82371
 2009-09-20 05:48:50 +00:00
Chris Lattner
b7eb454f66 switch an std::string to StringRef, shaving 400 bytes off CommandLine.o 
llvm-svn: 82370
 2009-09-20 05:48:01 +00:00
Nick Lewycky
b96f9df101 Remove tabs I added. 
llvm-svn: 82369
 2009-09-20 05:47:45 +00:00
Chris Lattner
346c1f60db the switch from std::map -> StringMap caused --help output to be in 
non-sorted order, restore the sort.

llvm-svn: 82368
 2009-09-20 05:37:24 +00:00
Chris Lattner
483832f33a eliminate the duplicate detection loop, moving it into the loop that populates the Opts vector in the first place. 
llvm-svn: 82367
 2009-09-20 05:22:52 +00:00
Chris Lattner
5b8c4b309a Eliminate a masochistic "algorithm" loop, shrinking CommandLine.o from 71524->70700 bytes. 
llvm-svn: 82366
 2009-09-20 05:18:28 +00:00
Chris Lattner
3a20fca97c don't use count + insert, just do insert + failure. Also, instead of deleting from 
the middle of a vector, swap the last element in and pop_back.  Also saves 330 bytes :)

llvm-svn: 82365
 2009-09-20 05:15:12 +00:00
Chris Lattner
488639ad3b switch to SmallPtrSet instead of std::set, saving 1K from the 
release-asserts .o file (72900->71856).

llvm-svn: 82364
 2009-09-20 05:12:14 +00:00
Chris Lattner
80674c762c change an std::sort to an array_pod_sort call, shrinking CommandLine.o by 9%. 
llvm-svn: 82363
 2009-09-20 05:06:23 +00:00
Chris Lattner
6a6a75896d Several changes together in a murky mess: 
1. Change some "\n" -> '\n'.
2. eliminte some std::string's by using raw_ostream::indent.
3. move a bunch of code out of the main arg parser routine into
   a new static HandlePrefixedOrGroupedOption function.
4. Greatly simplify the implementation of getOptionPred, and make
   it avoid splitting prefix options at = when that doesn't match
   a non-prefix option.

llvm-svn: 82362
 2009-09-20 05:03:30 +00:00
Nick Lewycky
42065f1555 Clean up the usage of evaluateICmpRelation's return value. 
Add another line to the ConstantExprFold test to demonstrate the GEPs may not
wrap around in either the signed or unsigned senses.

llvm-svn: 82361
 2009-09-20 04:27:06 +00:00
Daniel Dunbar
16b2c02cd3 Fix refacto, this code was expecting to stride past the argument prefix. 
llvm-svn: 82360
 2009-09-20 04:03:41 +00:00
Daniel Dunbar
4e33798de0 Strip trailing whitespace. 
llvm-svn: 82359
 2009-09-20 04:03:34 +00:00
Nick Lewycky
261d7a49b1 Remove dead store by taking a guess at what Chris meant. I wasn't able to 
design a testcase that would tickle this behaviour.

llvm-svn: 82357
 2009-09-20 03:48:46 +00:00
Bill Wendling
fe2bcb9889 Still one more thing wrong here... 
llvm-svn: 82356
 2009-09-20 02:27:06 +00:00
Daniel Dunbar
378331a13d Tabs -> spaces, and remove trailing whitespace. 
llvm-svn: 82355
 2009-09-20 02:20:51 +00:00
Bill Wendling
d402d7374a Here's fun! It turns out that these filter functions can be internal. If they're 
internal, they shouldn't use the indirect pointer stuff. In the case of
throw_rethrow_test, it was marked as 'internal' and calculated its own offset to
its contents.

llvm-svn: 82354
 2009-09-20 02:19:49 +00:00
Nick Lewycky
79db45a852 Delete dead code. sext and zext can not turn integers into pointers. Further, 
the optimization described in the comment is only valid with target data.

llvm-svn: 82353
 2009-09-20 02:11:47 +00:00
Chris Lattner
462444d1c8 convert argname to StringRef, simplifying LookupOption. 
llvm-svn: 82352
 2009-09-20 02:02:24 +00:00
Chris Lattner
2c4d26f38f convert 'Value' to StringRef which makes it easier to 
maintain the "null is unspecified, empty is empty" semantics.

llvm-svn: 82351
 2009-09-20 01:53:12 +00:00
Chris Lattner
08e8c98fec Change CommaSeparated processing to do it with StringRef instead of temporary std::strings. 
This requires StringRef'izing ProvideOption which I also did.

llvm-svn: 82350
 2009-09-20 01:49:31 +00:00
Nick Lewycky
ca1f29ee1b Value* were never meant to be const. Removing constness from the constant 
folder removes a lot of const_casting and requires no changes to clang or
llvm-gcc.

llvm-svn: 82349
 2009-09-20 01:35:59 +00:00
Chris Lattner
5b5a0ec095 rewrite ParseCStringVector in terms of stringref. 
llvm-svn: 82348
 2009-09-20 01:33:46 +00:00
Chris Lattner
72732da2f0 move a couple non-trivial methods out of line, add new 
find_first_of/find_first_of methods.

llvm-svn: 82347
 2009-09-20 01:22:16 +00:00
Chris Lattner
d32099fb1f coding style cleanup 
llvm-svn: 82346
 2009-09-20 01:11:23 +00:00
Chris Lattner
85478e8cd1 convert a bunch more stuff to use StringRef. The ArgName arguments are now 
stringref because they may not be nul terminated.  For options like -Lfoo
this now avoids a O(n)  temporary std::strings where N is the length of 
the string after -L.

llvm-svn: 82345
 2009-09-20 00:40:49 +00:00
Dale Johannesen
f8d05d7ce6 When computing live intervals for earlyclobber operands, 
we pushed the beginning of the interval back 1, so the
interval would overlap with inputs that die.  We were
also pushing the end of the interval back 1, though,
which means the earlyclobber didn't overlap with other
output operands.  Don't do this.  PR 4964.

llvm-svn: 82342
 2009-09-20 00:36:41 +00:00
Chris Lattner
bb111eeae4 avoid a bunch of malloc thrashing for PositinoalVals by eliminating 
a std::vector and a bunch of std::string temporaries.

llvm-svn: 82341
 2009-09-20 00:07:40 +00:00
Nick Lewycky
6ad3b51864 Teach the constant folder how to handle a few simple i1 cases. 
llvm-svn: 82340
 2009-09-20 00:04:02 +00:00
Chris Lattner
b29a51b4d4 Avoid some temporary strings. 
llvm-svn: 82339
 2009-09-19 23:59:02 +00:00
Chris Lattner
d2a0138c62 add some more overloads of StringRef::getAsInteger for 
common and useful integer types.

llvm-svn: 82338
 2009-09-19 23:58:48 +00:00
Bill Wendling
5dfef4dce4 Revert r82274. It's causing failures in the CINT2006 benchmarks. 
llvm-svn: 82336
 2009-09-19 22:02:37 +00:00
Daniel Dunbar
9ae3c56c92 Fix indentation. 
llvm-svn: 82333
 2009-09-19 20:40:14 +00:00
Daniel Dunbar
39c0d90339 Strip trailing whitespace. 
llvm-svn: 82332
 2009-09-19 20:40:05 +00:00
Nick Lewycky
3b7df4bbd5 Remove the default value for ConstantStruct::get's isPacked parameter and 
update the code which was broken by this.

llvm-svn: 82327
 2009-09-19 20:30:26 +00:00
Chris Lattner
e6fa81a475 provide a "strtoull" operation that works on StringRef's. 
llvm-svn: 82322
 2009-09-19 19:47:14 +00:00
Nick Lewycky
e539e55f2a Add a comment explaining why you would ever want to do this. 
llvm-svn: 82319
 2009-09-19 19:00:06 +00:00
Chris Lattner
86c1fbbc0a convert a bunch of std::strings to use StringRef. This should eliminate 
a massive number of temporary strings created when parsing a command line.
More still left to eliminate.

llvm-svn: 82318
 2009-09-19 18:55:05 +00:00
Nick Lewycky
441d1e8dd5 Lett users of sparse propagation do their own thing with phi nodes if they want 
to. This can be combined with LCSSA or SSI form to store more information on a
PHINode than can be computed by looking at its incoming values.

llvm-svn: 82317
 2009-09-19 18:33:36 +00:00
Duncan Sands
6f1a8215c0 The flag "--dot-cfg-only" is at the moment equivalent to the flag "--dot-cfg". 
It prints the content of all bbs, instead of printing empty bbs to make the
CFG more readable.  Fix this.  Patch by Tobias Grosser.

llvm-svn: 82315
 2009-09-19 11:25:44 +00:00
Evan Cheng
a82b43fb81 Fix funky comments. 
llvm-svn: 82314
 2009-09-19 10:09:15 +00:00
Benjamin Kramer
b8b2ef98f4 Try to speed up the slowest parts of the CommandLine library 
- Replace std::map<std::string with StringMap
- Eliminate unnecessary std::string copies
- ~10% speed-up for clang's testsuite on my machine (debug build)

llvm-svn: 82312
 2009-09-19 10:01:45 +00:00
Evan Cheng
7714c8412d Fix PR4926. When target hook EmitInstrWithCustomInserter() insert new basic blocks and update CFG, it should also inform sdisel of the changes so the phi source operands will come from the right basic blocks. 
llvm-svn: 82311
 2009-09-19 09:51:03 +00:00
Victor Hernandez
fe5347d782 Enhance transform passes so that they apply the same tranforms to malloc calls as to MallocInst. 
Reviewed by Dan Gohman.

llvm-svn: 82300
 2009-09-18 22:35:49 +00:00
Bob Wilson
0ad3a28b10 Fix a comment typo and some whitespace. 
llvm-svn: 82285
 2009-09-18 21:43:11 +00:00
Bob Wilson
1b311a6a9b Fix a typo in an assertion message. 
llvm-svn: 82284
 2009-09-18 21:42:44 +00:00
Bill Wendling
5e030245e8 Factor out label difference creation. 
llvm-svn: 82282
 2009-09-18 21:37:56 +00:00
Victor Hernandez
66d4042178 Enhance analysis passes so that they apply the same analysis to malloc calls as to MallocInst. 
Reviewed by Eli Friedman.

llvm-svn: 82281
 2009-09-18 21:34:51 +00:00
Bill Wendling
6ddbe2a6ad It's inefficient to have place the exception tables (which contain the LSDA) 
into the __DATA section. At launch time, dyld has to update most of the section
to fix up the type info pointers. It's better to place it into the __TEXT
section and use pc-rel indirect pointer encodings. Similar to the personality
routine.

llvm-svn: 82274
 2009-09-18 21:14:36 +00:00
Evan Cheng
7cb9c456e5 Enhance EmitInstrWithCustomInserter() so target can specify CFG changes that sdisel will use to properly complete phi nodes. 
Not functionality change yet.

llvm-svn: 82273
 2009-09-18 21:02:19 +00:00
Shantonu Sen
eedff40e25 Fix cmake build, which has a different -I that 
causes the "../foo" to not find the file

llvm-svn: 82270
 2009-09-18 20:35:59 +00:00
Chris Lattner
60739d60bf Make a new X8632_MachoTargetObjectFile TLOF implementation whose 
getSymbolForDwarfGlobalReference is smart enough to know that it 
needs to register the stub it references with MachineModuleInfoMachO,
so that it gets emitted at the end of the file.

Move stub emission from X86ATTAsmPrinter::doFinalization to the
new X86ATTAsmPrinter::EmitEndOfAsmFile asmprinter hook.  The important
thing here is that EmitEndOfAsmFile is called *after* the ehframes are
emitted, so we get all the stubs.

This allows us to remove a gross hack from the asmprinter where it would
"just know" that it needed to output stubs for personality functions.
Now this is all driven from a consistent interface.

The testcase change is just reordering the expected output now that the
stubs come out after the ehframe instead of before.

This also unblocks other changes that Bill wants to make.

llvm-svn: 82269
 2009-09-18 20:22:52 +00:00
Chris Lattner
f50872c2c4 add a new hook to allow targets to splat stuff at the end of the file. 
Overriding doFinalization is pretty lame.

llvm-svn: 82268
 2009-09-18 20:17:03 +00:00
Dale Johannesen
7d68f8de7f Model the carry bit on ppc32. Without this we could 
move a SUBFC (etc.) below the SUBFE (etc.) that consumed
the carry bit.  Add missing ADDIC8, noticed along the way.

llvm-svn: 82266
 2009-09-18 20:15:22 +00:00
Dan Gohman
0dcc5f9922 Add support for using the FLAGS result of or, xor, and and instructions 
on x86, to avoid explicit test instructions. A few existing tests changed
due to arbitrary register allocation differences.

llvm-svn: 82263
 2009-09-18 19:59:53 +00:00
Sean Callanan
498be752e0 Added RCL and RCR (rotate left and right with a 
carry bit) instructions to the Intel instruction
tables.

llvm-svn: 82260
 2009-09-18 19:35:23 +00:00
Devang Patel
c195f74dee Write and read metadata attachments. 
llvm-svn: 82259
 2009-09-18 19:26:43 +00:00
Victor Hernandez
065bc44d01 Update malloc call creation code (AllocType is now the element type of the malloc, not the resulting type). 
In getMallocArraySize(), fix bug in the case that array size is the product of 2 constants.

Extend isArrayMalloc() and getMallocArraySize() to handle case where malloc is used as char array.

Ensure that ArraySize in LowerAllocations::runOnBasicBlock() is correct type.

Extend Instruction::isSafeToSpeculativelyExecute() to handle malloc calls.

Add verification for malloc calls.

Reviewed by Dan Gohman.

llvm-svn: 82257
 2009-09-18 19:20:02 +00:00
Chris Lattner
288097205f duncan points out the EH selector values are signed. 
llvm-svn: 82245
 2009-09-18 18:34:29 +00:00
Chris Lattner
b2ccd100fc This file can need access to the X86 instruction enums when the table exceeds 32-bits. 
llvm-svn: 82235
 2009-09-18 18:08:55 +00:00
Anton Korobeynikov
fb7ac49d96 Allow symbols to start from the digit if target requests it. This allows, e.g. pinning 
variables to specified absolute address. Make use of this feature for MSP430.
This unbreaks PR4776.

llvm-svn: 82227
 2009-09-18 16:57:42 +00:00
Nick Lewycky
6fccd67e2f Stop using alloca. 
llvm-svn: 82225
 2009-09-18 16:46:16 +00:00
Evan Cheng
479df579a0 Revert r82214. It broke 403.gcc on x86_64 / Darwin. 
llvm-svn: 82215
 2009-09-18 08:26:06 +00:00
Evan Cheng
d1392886c1 Fix a bug in sdisel switch lowering code. When it updates the phi nodes in switch successor blocks, it can introduce multiple phi operands of the same value from different blocks (and may not be on the predecessor list). 
This can be seen on CodeGen/Generic/2006-09-06-SwitchLowering.ll. But it's not known to cause any real regression (but I have added an assertion for it now).

llvm-svn: 82214
 2009-09-18 08:16:04 +00:00
Nick Lewycky
9143d2c7a2 Add newlines. 
llvm-svn: 82206
 2009-09-18 07:36:47 +00:00
Chris Lattner
7c218a0238 tolerate llvm.eh.selector.i64 on 32-bit systems and llvm.eh.selector.i32 on 
64-bit systems.

llvm-svn: 82180
 2009-09-17 23:54:54 +00:00
Devang Patel
d90471a00d Fix parsing of optional metadata for 'load', 'store' and 'alloc' instructions. 
llvm-svn: 82175
 2009-09-17 23:04:48 +00:00
Chris Lattner
be5afd41e3 pass machinemoduleinfo down into getSymbolForDwarfGlobalReference, 
currently unused.

llvm-svn: 82157
 2009-09-17 18:49:52 +00:00
Dan Gohman
723717853b Teach ScalarEvolution how to reason about no-wrap flags on loops 
where the induction variable has a non-unit stride, such as {0,+,2}, and
there are expressions such as {1,+,2} inside the loop formed with
or or add nsw operators.

llvm-svn: 82151
 2009-09-17 18:05:20 +00:00
Jim Grosbach
6d6f3ded0b grammar 
llvm-svn: 82150
 2009-09-17 17:57:26 +00:00
Benjamin Kramer
b1d15dcefe Initialize HasMetadata to zero. 
llvm-svn: 82145
 2009-09-17 14:51:57 +00:00
Evan Cheng
491d179d97 Remove simple regalloc. It has bit rotted. 
llvm-svn: 82127
 2009-09-17 05:48:07 +00:00
Chris Lattner
09084c45af add a version of the APFloat constructor that initializes to 0.0 
llvm-svn: 82110
 2009-09-17 01:08:43 +00:00
Evan Cheng
218f882aff Fix PR4910: Broken logic in coalescer means when a physical register liveness is being shortened, the sub-registers were not. The symptom is the register allocator could not find a free register for this particular test. 
llvm-svn: 82108
 2009-09-17 00:57:15 +00:00
Daniel Dunbar
c688e9b700 Some platforms may need malloc.h for alloca. 
llvm-svn: 82100
 2009-09-17 00:14:44 +00:00
Daniel Dunbar
1ce602e5db Update CMake. 
llvm-svn: 82097
 2009-09-17 00:06:48 +00:00
Sean Callanan
a025a7f352 Added the LODS (load byte into register, usually 
as part string parsing) instructions to the Intel
instruction tables.

llvm-svn: 82089
 2009-09-16 22:59:28 +00:00
Daniel Dunbar
60e1dee7fa Add StringRef::{rfind, rsplit} 
llvm-svn: 82087
 2009-09-16 22:38:48 +00:00
Sean Callanan
cb5724f556 Added the LAR (load segment access rights) 
instructions to the Intel instruction tables.

llvm-svn: 82084
 2009-09-16 21:55:34 +00:00
Sean Callanan
a0ec1cbaa9 Added the LOOP family of instructions to the Intel 
instruction tables.

llvm-svn: 82083
 2009-09-16 21:50:07 +00:00
Sean Callanan
38313b9f78 Added an alternate form of register-register CMP 
to the Intel instruction tables.

llvm-svn: 82081
 2009-09-16 21:11:23 +00:00
Devang Patel
0b710cf26b Fix typo. 
llvm-svn: 82080
 2009-09-16 21:09:07 +00:00
Devang Patel
63a798ef1e At iSel time, update DebugLoc based on debug info attached with an instruction. 
llvm-svn: 82077
 2009-09-16 20:39:11 +00:00
Dan Gohman
752227ef24 Add a new pass for doing late hoisting of floating-point and vector 
constants out of loops. These aren't covered by the regular LICM
pass, because in LLVM IR constants don't require separate
instructions. They're not always covered by the MachineLICM pass
either, because it doesn't know how to unfold folded constant-pool
loads. This is somewhat experimental at this point, and off by
default.

llvm-svn: 82076
 2009-09-16 20:25:11 +00:00
Devang Patel
f15eea3399 Print debug info attached with an instruction. 
llvm-svn: 82075
 2009-09-16 20:21:17 +00:00
Bob Wilson
989568d935 Expand vector floating-point conversions not supported by NEON. 
llvm-svn: 82074
 2009-09-16 20:20:44 +00:00
Devang Patel
371df479d4 Provide a way to extract location info from DILocation. 
llvm-svn: 82064
 2009-09-16 18:20:05 +00:00
Devang Patel
b3173a0dfb Parse debug info attached with an instruction. 
llvm-svn: 82063
 2009-09-16 18:18:06 +00:00
Devang Patel
253aa4d192 Add llvm::Metadata to manage metadata used in a context. 
This interface will be used to attach metadata with an instruction.

llvm-svn: 82060
 2009-09-16 18:09:00 +00:00
Kevin Enderby
007cc571b8 Fix incorrect assert that should be a user error for code like 'mov $0, %%eax'. 
llvm-svn: 82054
 2009-09-16 17:18:29 +00:00
Dan Gohman
c7e3d84790 Change FoldPHIArgBinOpIntoPHI to decline folding if it would introduce two 
phis, similar to the FoldPHIArgGEPIntoPHI change.

Also, delete some comments that don't reflect the code.

llvm-svn: 82053
 2009-09-16 16:50:24 +00:00
Benjamin Kramer
55ae32042d Don't sort the vector when it is empty. This should fix some expensive checking 
failures.

llvm-svn: 82040
 2009-09-16 11:43:12 +00:00
Andreas Neustifter
15e9f61d26 Reapplied r81355 with the problems fixed. 
(See http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20090907/086737.html and
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20090907/086746.html)

llvm-svn: 82039
 2009-09-16 11:35:50 +00:00
Xerxes Ranby
9232899c5c updated lib/CodeGen/CMakeLists.txt to unbreak cmake build after r82018 
llvm-svn: 82038
 2009-09-16 10:18:36 +00:00
Andreas Neustifter
3c9b4c4c75 Preserve ProfileInfo during CodeGenPrepare. 
llvm-svn: 82034
 2009-09-16 09:26:52 +00:00
Chris Lattner
f91260f6cf move FnStubs/GVSTubs/HiddenGVStub handling out of the X86 asmprinter 
and use MachineModuleInfoMachO instead.

llvm-svn: 82022
 2009-09-16 06:25:03 +00:00
Chris Lattner
481a417960 revert a hunk of r82018 that wasn't supposed to go in yet. 
llvm-svn: 82020
 2009-09-16 06:04:53 +00:00
Chris Lattner
4452afa6d8 add a new MachineModuleInfoMachO class, which is the per-module 
stuff common across all macho targets.

llvm-svn: 82018
 2009-09-16 06:03:48 +00:00
Chris Lattner
d6143d7aff the pointer MMI keeps will start out with object-file format specific stuff 
llvm-svn: 82012
 2009-09-16 05:26:00 +00:00
Chris Lattner
bc8d86ec5a tidy up 
llvm-svn: 82011
 2009-09-16 05:25:43 +00:00
Chris Lattner
e6bd7b39eb rearrange X86ATTAsmPrinter::doFinalization, making a scan of 
the global variable list only happen for COFF targets.

llvm-svn: 82010
 2009-09-16 05:20:33 +00:00
Chris Lattner
0a6f37ec43 remove the AsmPrinter::printMCInst hook hack now that 
we have MCInstPrinter.

llvm-svn: 82006
 2009-09-16 04:57:15 +00:00
Shantonu Sen
cdd58c2969 fix cmake build 
llvm-svn: 81999
 2009-09-16 04:44:00 +00:00
Nate Begeman
e9d86c0126 Do not try and sink a load whose chain result has more than one use, when 
trying to create RMW opportunities in the x86 backend.  This can cause a 
cycle to appear in the graph, since the other uses may eventually feed into
the TokenFactor we are sinking the load below.

llvm-svn: 81996
 2009-09-16 03:20:46 +00:00
Sean Callanan
0fb60155bd Added the ENTER instruction, which sets up a stack 
frame, to the Intel instruction tables.

llvm-svn: 81995
 2009-09-16 02:57:13 +00:00
Sean Callanan
a3e93882f3 Added the definitions for one-bit left shifts to 
the Intel instruction tables.

The patterns will stay blank because ADD reg, reg
is faster, but having the encoding available is
useful for the disassembler.

llvm-svn: 81994
 2009-09-16 02:28:43 +00:00
Dan Gohman
77638f25b1 Don't sink gep operators through phi nodes if the result would require 
more than one phi, since that leads to higher register pressure on
entry to the phi. This is especially problematic when the phi is in
a loop header, as it increases register pressure throughout the loop.

llvm-svn: 81993
 2009-09-16 02:01:52 +00:00
Sean Callanan
e482e93995 Removed a few instructions that were already 
covered by other definitions.

llvm-svn: 81992
 2009-09-16 01:54:38 +00:00
Chris Lattner
7b52d90c9e Big change #1 for personality function references: 
Eliminate the PersonalityPrefix/Suffix & NeedsIndirectEncoding
fields from MAI: they aren't part of the asm syntax, they are
related to the structure of the object file.

To replace their functionality, add a new 
TLOF::getSymbolForDwarfGlobalReference method which asks targets
to decide how to reference a global from EH in a pc-relative way.

The default implementation just returns the symbol.  The default
darwin implementation references the symbol through an indirect
$non_lazy_ptr stub.  The bizarro x86-64 darwin specialization
handles the weird "foo@GOTPCREL+4" hack.

DwarfException.cpp now uses this to emit the reference to the
symbol in the right way, and this also eliminates another 
horrible hack from DwarfException.cpp:

-    if (strcmp(MAI->getPersonalitySuffix(), "+4@GOTPCREL"))
-      O << "-" << MAI->getPCSymbol();

llvm-svn: 81991
 2009-09-16 01:46:41 +00:00
Chris Lattner
7a0fe1ca4b remove a dead variable. 
llvm-svn: 81985
 2009-09-16 01:29:11 +00:00
Chris Lattner
006af669b4 add a helper method for creating MCSymbol and MCSymbolRefExpr at 
the same time.

llvm-svn: 81984
 2009-09-16 01:26:31 +00:00
Sean Callanan
296ed7d1e1 Added a variety of floating-point and SSE instructions. 
All of these do not have patterns (they're for the
disassembler).

Many of the floating-point instructions will probably
be rolled into definitions that have patterns, and may
eventually be superseded by mdefs.  So I put them
together and left a comment.

llvm-svn: 81979
 2009-09-16 01:13:52 +00:00
Chris Lattner
7a4748ad3a inline AsmPrinter::getCurrentFunctionEHName into its only caller. 
llvm-svn: 81970
 2009-09-16 00:35:39 +00:00
Bob Wilson
8770c809c2 Expand some more vector operations not supported by Neon. 
llvm-svn: 81969
 2009-09-16 00:32:15 +00:00
Chris Lattner
7a07d794ee Eliminate AsmPrinter::EmitExternalGlobal, inlining its (now) 
one implementation into its one caller.  This eliminates a totally
awesome and gratuitous hack where we casted a Function* to 
GlobalVariable*.

llvm-svn: 81967
 2009-09-16 00:17:39 +00:00
Bob Wilson
c01a94dad0 Neon does not support vector divide or remainder. Expand them. 
llvm-svn: 81966
 2009-09-16 00:17:28 +00:00
Chris Lattner
91c3b33e33 eliminate the PPC backend's implementation of EmitExternalGlobal 
and use PersonalityPrefix/Suffix to achieve the same effect (like
the x86 backend).

This changes the code generated for ppc static mode, but guess what,
we were generating this before:

	.byte	0x9B                                        ; Personality (indirect pcrel sdata4)
	.long	___gxx_personality_v0-.                     ; Personality

which is not correct! (it is not an 'indirect' reference).
 

llvm-svn: 81965
 2009-09-16 00:14:19 +00:00
Chris Lattner
f720dd9257 eliminate the horrid AsmPrinter::getGlobalLinkName method, inlining 
it into all of its call sites and simplifying them.

llvm-svn: 81962
 2009-09-16 00:08:41 +00:00
Chris Lattner
6302039748 simplify some code 
llvm-svn: 81961
 2009-09-16 00:08:07 +00:00
Bob Wilson
f091792f40 Expand all v2f64 arithmetic operations for Neon. 
Radar 7200803.  (This should also fix the
SingleSource/UnitTests/Vector/sumarray-dbl test.)

llvm-svn: 81959
 2009-09-15 23:55:57 +00:00
Sean Callanan
a68b2a56bb Added far return instructions (that is, returns to 
code in other segments) to the Intel instruction
tables.

llvm-svn: 81953
 2009-09-15 23:37:51 +00:00
Chris Lattner
249d5fe8b9 remove some horrible MAI hooks which fortunately turn out to be always empty. 
llvm-svn: 81946
 2009-09-15 23:11:32 +00:00
Chris Lattner
c06870ad45 strength reduce a call to PrintRelDirective(true). 
llvm-svn: 81942
 2009-09-15 22:58:35 +00:00
Chris Lattner
8457d8c557 add hooks to hang target-specific goop off MachineModuleInfo, 
move MachineFunctionInfo virtual method out of line to give it
a home.

llvm-svn: 81940
 2009-09-15 22:44:26 +00:00
Nate Begeman
d34c7760b3 Do not add the SVOffset to the Node CSE ID. The same pointer argument cannot have different 
SVOffsets.

llvm-svn: 81937
 2009-09-15 22:30:11 +00:00
Eric Christopher
936a41fff1 Expand on comment. 
llvm-svn: 81928
 2009-09-15 21:56:46 +00:00
Sean Callanan
4dc743b7ff Updated comments per Eli's suggestion. 
llvm-svn: 81923
 2009-09-15 21:43:27 +00:00
Sean Callanan
e62a9a60c7 Added register-to-register ADD instructions to the 
Intel tables, where the source operand is
specified by the R/M field and the destination
operand by the Reg field.

llvm-svn: 81914
 2009-09-15 20:53:57 +00:00
Daniel Dunbar
f1b6d523e4 Drop the raw_ostream required buffer size to 1. 
- As best I can tell, we have eliminated all the code which used to require a
   larger buffer size.

llvm-svn: 81912
 2009-09-15 20:31:46 +00:00
Daniel Dunbar
e14446813e Fix -Asserts warning. 
llvm-svn: 81909
 2009-09-15 20:31:12 +00:00
Nate Begeman
e7fa31031b Better solution for tracking both the original alignment of the access, and the current alignment based 
on the source value offset.  This avoids increasing the size of mem nodes. 

llvm-svn: 81897
 2009-09-15 19:05:41 +00:00
Sean Callanan
3386a02b81 Added a new register class for segment registers 
to the Intel register table.
Added 16- and 64-bit MOVs to and from the segment
registers to the Intel instruction tables.

llvm-svn: 81895
 2009-09-15 18:47:29 +00:00
Dale Johannesen
d00219c590 Change the marker byte for stubs from 0xcd to 0xce (another form of 
interrupt instruction, which shouldn't arise any other way).  0xcd is
also used by JITMemoryManager to initialize the buffer to garbage,
which means it could appear following a noreturn call even when
that is not a stub, confusing X86CompilationCallback2.  PR 4929.

llvm-svn: 81888
 2009-09-15 18:32:14 +00:00
Chris Lattner
0f1da52ad1 fix PR4984 by ensuring that fastisel adds properly sign extended GEP displacement 
values to machineinstrs.

llvm-svn: 81886
 2009-09-15 18:27:02 +00:00
Chris Lattner
a2f99fe0ec add missing file 
llvm-svn: 81881
 2009-09-15 18:03:13 +00:00
Bob Wilson
a42ff3190c Handle AddrMode4 for Thumb2 in rewriteT2FrameIndex. This occurs for 
VLDM/VSTM instructions, and without this check, the code assumes that an
offset is allowed, as it would be with VLDR/VSTR.  The asm printer,
however, silently drops the offset, producing incorrect code.  Since the
address register in this case is either the stack or frame pointer, the
spill location ends up conflicting with some other stack slot or with
outgoing arguments on the stack.

llvm-svn: 81879
 2009-09-15 17:56:18 +00:00
Sandeep Patel
7727a68464 Fix superreg use in ARMAsmPrinter. Approved by Anton Korobeynikov. 
llvm-svn: 81878
 2009-09-15 17:53:11 +00:00
Chris Lattner
31ba68c9af several major improvements to the sparc backend: support for weak linkage 
and PIC codegen.  Patch by Venkatraman Govindaraju!

llvm-svn: 81877
 2009-09-15 17:46:24 +00:00
Dan Gohman
78b99e3761 Teach ValueTracking how to look through GlobalAliases. GlobalAliases are 
not folded in the constant folder because the constant folder doesn't
simplify ConstantExpr operands.

llvm-svn: 81864
 2009-09-15 16:14:44 +00:00
Dan Gohman
ccdb00720e Fix an accidental inversion of the inbounds flag. 
llvm-svn: 81862
 2009-09-15 16:00:30 +00:00
Dan Gohman
18a3644dde When a constant's type is refined, update the constant in place 
instead of cloning and RAUWing it.

 - Make AbstractTypeUser a friend of Value so that it can offer
   its subclasses a way to update a Value's type in place. This
   is better than a universally visible setType method on Value,
   and it's sufficient for the immediate need.

 - Eliminate the constant "convert" functions. This eliminates a
   lot of logic duplication, and fixes a complicated bug where a
   constant can't actually be cloned during the type refinement
   process because some of the types that its folder needs are
   half-destroyed, being in the middle of refinement themselves.

 - Move the getValType functions from being static overloaded
   functions in Constants.cpp to be members of class template
   specializations in ConstantsContext.h. This means that the
   code ends up getting instantiated twice, however it also
   makes it possible to eliminate all "convert" functions, so
   it's not a big net code size increase. And if desired, the
   duplicate instantiations could be eliminated with some
   reorganization.

llvm-svn: 81861
 2009-09-15 15:58:07 +00:00
Nick Lewycky
85f7bd1942 Add more newlines to make up for the ones removed from the end of instructions. 
llvm-svn: 81851
 2009-09-15 07:08:25 +00:00
Evan Cheng
c6aba09119 Another try at early partial coalescing. Identity phi source copies (their sources are defined by phi join def) are coalesced. And the phi join copy is backward copy propagated into the other copies. 
Still miscompiling some tests. :-(

llvm-svn: 81849
 2009-09-15 06:45:16 +00:00
Nick Lewycky
554eac4066 Forbid arrays of function-type and structures with function-typed fields. 
While I'm there, change code that does:
  SomeTy == Type::getFooType(Context)
into:
  SomeTy->getTypeID() == FooTyID
to decrease the amount of useless type creation which may involve locking, etc.

llvm-svn: 81846
 2009-09-15 06:28:26 +00:00
Chris Lattner
cf3281f7d0 fix PR4963: folding insertvalue would sometimes turn a packed struct into 
an unpacked one.

llvm-svn: 81845
 2009-09-15 06:28:12 +00:00
Chris Lattner
d219c7b6ee add a new CallGraphNode::replaceCallEdge method and use it from 
argpromote to avoid invalidating an iterator.  This fixes PR4977.
All clang tests now pass with expensive checking (on my system 
at least).

llvm-svn: 81843
 2009-09-15 05:40:35 +00:00
Chris Lattner
4dd9afd1be add newline to debug dump 
llvm-svn: 81840
 2009-09-15 05:14:57 +00:00
Chris Lattner
50438771c0 make -debug-pass=Executions show information about what call graph nodes 
are in the SCC for each execution of a CGSCC pass.

llvm-svn: 81838
 2009-09-15 05:03:04 +00:00
Chris Lattner
d7ba993f2e add some missing quotes in debug output 
llvm-svn: 81836
 2009-09-15 04:45:26 +00:00
Ted Kremenek
477a21a996 Remove invalid add_dependencies line to unbreak the CMake build. 
llvm-svn: 81827
 2009-09-15 04:06:36 +00:00
Mikhail Glushenkov
3b1f94a1fc Get rid of GetProcessId in Win32/Program.inc. 
GetProcessId was introduced only in XP. As a bonus, this change makes Program
objects copyable, since Program is now basically a PID.

llvm-svn: 81826
 2009-09-15 03:39:45 +00:00
Dan Gohman
41a3b8fba9 Don't pull a load through a callseq_start if the load's chain 
has multiple uses, as one of the other uses may be on a path
to a different node above the callseq_start, because that
leads to a cyclic graph. This problem is exposed when
-combiner-global-alias-analysis is used. This fixes PR4880.

llvm-svn: 81821
 2009-09-15 01:22:01 +00:00
Nate Begeman
ebc8c4a3f1 Remove incorrect CSE code from r81813. 
llvm-svn: 81819
 2009-09-15 00:38:09 +00:00
Sean Callanan
f6e983b998 Modified the Intel instruction tables to include 
versions of CALL and JMP with segmented addresses
provided in-line, as pairs of immediates.

llvm-svn: 81818
 2009-09-15 00:35:17 +00:00
Kevin Enderby
da3290e68c Added the first bits of the ARM target assembler to llvm-mc. For now it only 
parses the .word directive as 4 bytes and ARMAsmParser::ParseInstruction will
give an error is called.  Broke out the test of the .word directive into two
different test cases, one for x86 and one for arm.

llvm-svn: 81817
 2009-09-15 00:27:25 +00:00
Nate Begeman
729869a398 Substantially speed up combiner-aa in the following ways: 
1. Switch from an std::set to a SmallPtrSet for visited chain nodes.
2. Do not force the recursive flattening of token factor nodes, regardless of
   use count.
3. Immediately process newly created TokenFactor nodes.

Also, improve combiner-aa by teaching it that loads to non-overlapping offsets
of relatively aligned objects cannot alias.

These changes result in a >5x speedup for combiner-aa on most testcases.

llvm-svn: 81816
 2009-09-15 00:18:30 +00:00
Nate Begeman
a9e552182a Teach the legalizer to propagate the original alignment of loads and store when 
it splits them.

llvm-svn: 81815
 2009-09-15 00:14:28 +00:00
Dan Gohman
9401b2fcab On x86-64, the 32-bit cmov doesn't actually clear the high 32-bit of 
its result if the condition is false.

llvm-svn: 81814
 2009-09-15 00:14:11 +00:00
Nate Begeman
e9572a945b Add an "original alignment" field to load and store nodes. This enables the 
DAG Combiner to disambiguate chains for loads and stores of types which are
 broken up by the Legalizer into smaller pieces.  

llvm-svn: 81813
 2009-09-15 00:13:12 +00:00
Dan Gohman
ec42afc1dc When extending a memset range past the front, set the alignment of the 
memset region to the alignment of the new start address.

llvm-svn: 81810
 2009-09-14 23:39:10 +00:00
Evan Cheng
83bb285c97 Add early coalescing to liveintervals. This is work in progress and is known to miscompute some tests. Read it at your own rish, I have aged 10 year while writing this. 
The gist of this is if source of some of the copies that feed into a phi join is defined by the phi join, we'd like to eliminate them. However, if any of the non-identity source overlaps the live interval of the phi join then the coalescer won't be able to coalesce them. The early coalescer's job is to eliminate the identity copies by partially-coalescing the two live intervals.

llvm-svn: 81796
 2009-09-14 21:33:42 +00:00
Bill Wendling
f43d8a08b0 Pull the creation of the "RewindFunction" function out of the loop. It's only 
created once, so shouldn't be stuck in the middle of the loop. Also early exit
if there are no uses of UnwindInst in the function.

llvm-svn: 81785
 2009-09-14 20:52:37 +00:00
Jim Grosbach
5f662f31bc trivial whitespace cleanup 
llvm-svn: 81773
 2009-09-14 17:27:35 +00:00
Chris Lattner
444c69afae add PR# 
llvm-svn: 81770
 2009-09-14 16:49:26 +00:00
Daniel Dunbar
d729752a24 Update CMake. 
llvm-svn: 81757
 2009-09-14 05:22:47 +00:00
Chris Lattner
ec805c1a5d PIC16 does allow colon after MBB labels, simplify EmitBasicBlockStart. 
llvm-svn: 81755
 2009-09-14 03:15:54 +00:00
Chris Lattner
4a33f01892 Change MCAsmStreamer to take an MCInstPrinter instead of a 
full AsmPrinter, and change TargetRegistry to keep track
of registered MCInstPrinters.

llvm-mc is still linking in the entire
target foo to get the code emitter stuff, but this is an
important step in the right direction.

llvm-svn: 81754
 2009-09-14 03:02:37 +00:00
Nick Lewycky
65180a9be4 Fix a pair of comment typos. 
llvm-svn: 81750
 2009-09-14 02:25:34 +00:00
Nick Lewycky
02986c78c5 Fifth time's a charm! Remove ourselves as abstract type listeners once we've 
been told that the type is no longer abstract.

llvm-svn: 81749
 2009-09-14 02:25:19 +00:00
Chris Lattner
a00e070ea0 Give MCInstPrinter a MCAsmInfo member, make X86ATTInstPrinter 
be a MCInstPrinter.

llvm-svn: 81746
 2009-09-14 01:49:26 +00:00
Chris Lattner
27a850eb70 add a new MCInstPrinter class, move the (trivial) MCDisassmbler ctor inline. 
llvm-svn: 81745
 2009-09-14 01:43:38 +00:00
Chris Lattner
8da6598a75 tidy up a bit. 
llvm-svn: 81744
 2009-09-14 01:34:40 +00:00
Nick Lewycky
e38e763387 Don't leak! Always remove oneself as a listener after adding oneself. 
llvm-svn: 81736
 2009-09-14 00:36:52 +00:00
Nick Lewycky
c4bde40e87 Actually remove old types from the set. 
Also break the type verification stuff into its own TypeSet to keep the
Verifier pass from becoming an AbstractTypeUser.

llvm-svn: 81729
 2009-09-13 23:45:39 +00:00
Chris Lattner
fbe97bcd52 kill off the last use of TRI::AsmName. 
llvm-svn: 81727
 2009-09-13 22:42:03 +00:00
Chris Lattner
830f090c2e add some special case handling for strangely named x86 registers. 
llvm-svn: 81726
 2009-09-13 22:41:48 +00:00
Chris Lattner
8724d994d0 'printMCInst' doesn't print newlines after instructions anymore. 
llvm-svn: 81723
 2009-09-13 22:24:34 +00:00
Daniel Dunbar
8e0f9e60d7 Remove unused variables. 
llvm-svn: 81718
 2009-09-13 21:31:07 +00:00
Nick Lewycky
9b6c23aba0 Storing a set of PATypeHolders is a bad idea because their sort order will 
change as types are refined. Remove abstract types from CheckedTypes when they
we're informed that they have been refined. The only way types get refined in
the verifier is when later function passes start optimizing. Fixes PR4970.

llvm-svn: 81716
 2009-09-13 21:07:59 +00:00
Chris Lattner
334aa7a1d4 remove all but one reference to TargetRegisterDesc::AsmName. 
llvm-svn: 81714
 2009-09-13 20:31:40 +00:00
Chris Lattner
20b7392123 the tblgen produced 'getRegisterName' method does not access 
the object, make it static instead of const.

llvm-svn: 81711
 2009-09-13 20:19:22 +00:00
Chris Lattner
31c7141542 switch the x86 asmprinters to use getRegisterName instead 
of getting it from TRI, inst printing now is codegen context
free!

llvm-svn: 81710
 2009-09-13 20:15:16 +00:00
Chris Lattner
0cde5283e3 make tblgen produce a function that returns the name for a physreg. 
Nothing is using this info yet.

llvm-svn: 81707
 2009-09-13 20:08:00 +00:00
Chris Lattner
1e264d7506 eliminate an extraneous use of TRI::getAsmName in a comment. 
llvm-svn: 81705
 2009-09-13 19:48:37 +00:00
Chris Lattner
fb0e41caef make intel asmprinter use TRI::getAsmName instead of TRI::getName like 
all the other targets.  Add support for weak/linkonce linkage so it doesn't
crash on basically all nontrivial testcases.

llvm-svn: 81704
 2009-09-13 19:44:38 +00:00
Chris Lattner
96e22d6462 split MCInst printing out of the X86ATTInstPrinter 
class into its own X86ATTInstPrinter class.  The inst
printer now has just one dependence on the code generator
(TRI).

llvm-svn: 81703
 2009-09-13 19:30:11 +00:00
Chris Lattner
57dbcc4388 reduce indentation with early exit. 
llvm-svn: 81699
 2009-09-13 19:10:08 +00:00
Chris Lattner
cb05a87447 remove MAI::JumpTableSpecialLabelPrefix now that MAI 
has real information about linker private linkage.

llvm-svn: 81695
 2009-09-13 19:02:16 +00:00
Chris Lattner
a0dbce2e0e delete the fixme too! :) 
llvm-svn: 81689
 2009-09-13 18:50:22 +00:00
Chris Lattner
dfc3079a9e merge the linux cpool/jtbl pic tests into pic.ll and convert to filecheck. 
Change the picbase symbol on non-darwin systems from ".Lllvm$4.$piclabel" to
".L4$pb".  The actual name doesn't matter and the darwin name is shorter.

llvm-svn: 81688
 2009-09-13 18:46:37 +00:00
Chris Lattner
9e536003ba make X86ATTAsmPrinter::PrintPICBaseSymbol forward to X86MCInstLower. 
llvm-svn: 81685
 2009-09-13 18:33:59 +00:00
Chris Lattner
cbcbedf254 replace printBasicBlockLabel with EmitBasicBlockStart, 
now that printBasicBlockLabel is only used for starting
a MBB.  This allows elimination of a bunch of arguments.

llvm-svn: 81684
 2009-09-13 18:25:37 +00:00
Chris Lattner
89e5731659 fix MCSymbol printing on darwin to exactly match the mangler (handling of \n and " in a symbol name). 
llvm-svn: 81683
 2009-09-13 18:11:09 +00:00
Chris Lattner
e26af94cd4 Make the MC symbol printer and llvm::Mangler exactly agree on mangling 
for systems that don't support quoting (PR4966).

llvm-svn: 81682
 2009-09-13 18:04:46 +00:00