Commit Graph

58021 Commits

Author SHA1 Message Date
Chris Lattner 00f2e4b6d6 remove dead code, simplify.
llvm-svn: 97510
2010-03-01 22:19:47 +00:00
Chris Lattner d39f75ba39 Fix PR2590 by making PatternSortingPredicate actually be
ordered correctly.  Previously it would get in trouble when
two patterns were too similar and give them nondet ordering.
We force this by using the record ID order as a fallback.

The testsuite diff is due to alpha patterns being ordered
slightly differently, the change is a semantic noop afaict:

< 	lda $0,-100($16)
---
> 	subq $16,100,$0

llvm-svn: 97509
2010-03-01 22:09:11 +00:00
Chris Lattner 664ac989ff tolerate factoring the *last* node for CellSPU.
llvm-svn: 97508
2010-03-01 22:04:33 +00:00
Evan Cheng 87d50aa18a Remove the optimize for code size limitation on r67917. Optimize 64-bit imul by constants into leas + shl regardless if optimizing for code size. The size saving from using imulq isn't worth it. Also, the lea and shl instructions may expose further optimization.
llvm-svn: 97507
2010-03-01 22:00:11 +00:00
Chris Lattner 33758dcad2 optimize tblgen compile time by eliminating the old isel.
llvm-svn: 97504
2010-03-01 21:49:54 +00:00
Dan Gohman 5341a86450 Make llc opt into the addPassesToEmitFile verify pass.
llvm-svn: 97502
2010-03-01 21:45:21 +00:00
Chris Lattner 55ef1ebe52 remove a terrible hack that disabled assertions from this file because of build time
problems.  rdar://7697850.

llvm-svn: 97500
2010-03-01 21:20:46 +00:00
Jakob Stoklund Olesen 115da88f01 Use methods to determine if a LiveInterval is spillable.
Don't accidentally produce unspillable intervals for deeply nested loops.

llvm-svn: 97496
2010-03-01 20:59:38 +00:00
Devang Patel aaecdaeb5d Remove tests that checks @llvm.dbg.stoppoint handling.
llvm-svn: 97493
2010-03-01 20:33:48 +00:00
Chris Lattner d35a728a34 stop using anders-aa
llvm-svn: 97492
2010-03-01 20:24:50 +00:00
Chris Lattner 8c1132746b stop using anders-aa
llvm-svn: 97491
2010-03-01 20:24:05 +00:00
Chris Lattner 7d2c1592f3 remove andersen's tests.
llvm-svn: 97490
2010-03-01 20:23:15 +00:00
Devang Patel 2e7ddea828 @llvm.dbg.stoppoint intrinsic is not used anymore.
Delete dead testcase.

llvm-svn: 97489
2010-03-01 19:46:08 +00:00
Ted Kremenek 5c74a4b00b Update CMake build.
llvm-svn: 97488
2010-03-01 19:42:47 +00:00
Devang Patel 4e728b3823 Update to use new debug info encoding scheme. As a bonus, now the test passes!
llvm-svn: 97487
2010-03-01 19:41:26 +00:00
Chris Lattner 94fd3388b0 don't emit the old sdnodexform stuff for the new isel.
llvm-svn: 97486
2010-03-01 19:39:15 +00:00
Chris Lattner 3780ca6ef2 stop using generated sdnodexforms.
llvm-svn: 97485
2010-03-01 19:38:53 +00:00
Chris Lattner 883b868765 note that andersaa was removed in 2.7
llvm-svn: 97484
2010-03-01 19:29:17 +00:00
Chris Lattner 5ea3e65929 remove anders-aa from mainline, it isn't maintained and is
tantalyzing enough that people keep trying to use it.

llvm-svn: 97483
2010-03-01 19:24:17 +00:00
Johnny Chen 718ed8a6d5 Added STRHT for disassembly only and fixed a bug in AI3sthpo class where the W
bit should be set to 0 instead of 1.

llvm-svn: 97481
2010-03-01 19:22:00 +00:00
Devang Patel ed56bcfd91 Remove this test because it checks wheter optimizer handled @llvm.dbg.global_variable appropriately or not. LLVM does not use this scheme to encode debug info for global variables any more.
llvm-svn: 97480
2010-03-01 19:14:25 +00:00
Devang Patel d8425df136 Remove test to check bugfix in handing debug info for global variables using intrinsics. Now, debug info for global variable is encoded using metadata. The old code path is now history and there is no need to have a test to check a bug fix in old code path.
llvm-svn: 97477
2010-03-01 19:09:55 +00:00
Chris Lattner 2563e83759 Turn on the new isel by default. Here are some fun numbers
with a release-asserts build on x86-64-darwin10:

LLC Size:
Old: 15,426,852
New: 12,759,140  (down 2.7M)

LLI Size:
Old: 9,926,876
New: 8,864,292   (down 1.1M)

X86ISelDAGToDAG.o size:
Old: 1,401,232
New:   162,868   (down 1.3M)

Time to build X86ISelDAGToDAG.o:
Old: 67.147u 2.060s 1:09.78
New:  4.234u 0.387s 0:04.77

llvm-svn: 97475
2010-03-01 19:05:25 +00:00
Devang Patel 9aef3e5de1 Remove dead test.
llvm-svn: 97474
2010-03-01 19:04:23 +00:00
Devang Patel dd596b1248 Replace test case that uses @llvm.dbg.* intrinsic with a test that uses metadata.
llvm-svn: 97473
2010-03-01 19:02:51 +00:00
Torok Edwin 04a0eab01b Missed a \n in previous commit.
llvm-svn: 97472
2010-03-01 19:00:55 +00:00
Torok Edwin 12b02282d9 Add command-line flag to tblgen to turn off generating comments for the new
isel (defaults it to generate comments).
This reduces the size of the generated source file.

llvm-svn: 97470
2010-03-01 18:49:10 +00:00
Chris Lattner c1a3190870 Accelerate isel dispatch for tables that start with a top-level
OPC_SwitchOpcode to use a table lookup instead of having to go
through the interpreter for this.

llvm-svn: 97469
2010-03-01 18:47:11 +00:00
Devang Patel 890644e3a7 These two tests check whether oprimizer safely ignores @llvm.dbg.stoppoint intrinsic or not. This intrinsic is not used anymore.
llvm-svn: 97468
2010-03-01 18:45:28 +00:00
John McCall c6dbe30e88 Don't potentially read past the end of the fill data when making a NaN from
an APInt.

llvm-svn: 97467
2010-03-01 18:38:45 +00:00
Devang Patel 1392621e0f This test checks whether LICM ignores @llvm.dbg.stoppoint intrinsics appropriately or not. Now, llvm does not use this intrinsic. Remove this test.
llvm-svn: 97466
2010-03-01 18:32:27 +00:00
Devang Patel 3bf0571bb0 Rewrite test to test VLA using new debug info encoding scheme.
llvm-svn: 97465
2010-03-01 18:30:58 +00:00
Devang Patel 4aefd92040 Remove this generic debug info intrinsic test. LLVM does not use this llvm.dbg.stoppoint intrinsic anymore. There are tests to check new implementation, which attaches location information directly with an instruction using metadata.
llvm-svn: 97464
2010-03-01 18:30:08 +00:00
Dan Gohman c3c3c6829f Fix optimization of ISD::TRUNCATE on vector operands. Based on a patch
by Micah Villmow for PR6335.

llvm-svn: 97461
2010-03-01 17:59:21 +00:00
Dan Gohman b0e07d53c1 Add explicit keywords.
llvm-svn: 97460
2010-03-01 17:56:46 +00:00
Dan Gohman 904d34c90f Add a comment.
llvm-svn: 97459
2010-03-01 17:56:04 +00:00
Dan Gohman 39917c7c81 Add some debug output to LoopSimplify.
llvm-svn: 97458
2010-03-01 17:55:27 +00:00
Dan Gohman 7886c49d5c Add the alignstack keyword.
llvm-svn: 97457
2010-03-01 17:53:39 +00:00
Dan Gohman 882c95605f LLVM instruction syntax doesn't have trailing semicolons.
llvm-svn: 97456
2010-03-01 17:53:15 +00:00
Dan Gohman 01b443fdd3 Spelling fixes.
llvm-svn: 97454
2010-03-01 17:51:02 +00:00
Dan Gohman 8b0a419eb1 Spelling fixes.
llvm-svn: 97453
2010-03-01 17:49:51 +00:00
Dan Gohman 574e72d17d Whitespace cleanups.
llvm-svn: 97452
2010-03-01 17:47:21 +00:00
Dan Gohman 2055938113 Use Doxygen comment syntax.
llvm-svn: 97451
2010-03-01 17:45:15 +00:00
Dan Gohman 312d604ee2 This is now done.
llvm-svn: 97450
2010-03-01 17:43:57 +00:00
Dan Gohman 96d45008a6 Fix a missing newline in debug output.
llvm-svn: 97449
2010-03-01 17:42:55 +00:00
Dan Gohman 0c39a35457 Prune #includes.
llvm-svn: 97448
2010-03-01 17:42:17 +00:00
Dan Gohman a269a0a667 Fix spelling.
llvm-svn: 97447
2010-03-01 17:41:39 +00:00
Dan Gohman 74b189fcb2 Don't print "Modified" for passes which haven't modified anything.
llvm-svn: 97446
2010-03-01 17:34:28 +00:00
Nathan Keynes 42a5be5121 Add JIT support to the TODO list (test commit)
llvm-svn: 97443
2010-03-01 10:40:41 +00:00
Chris Lattner 86878b4a1e Emit type checks late instead of early, this encourages
structural matching code to be factored and shared this
shrinks the X86 isel table from 86537 to 83890 bytes.

llvm-svn: 97442
2010-03-01 07:54:59 +00:00
Chris Lattner e89ca7c146 some trivial microoptimizations.
llvm-svn: 97441
2010-03-01 07:43:08 +00:00
Chris Lattner a44697c394 Emit a redundant check for immediates at root context, e.g. (imm 0).
This allows formation of OpcodeSwitch for top level patterns, in
particular on X86.  This saves about 1K of data space in the x86
table and makes the dispatch much more efficient.

llvm-svn: 97440
2010-03-01 07:27:07 +00:00
Chris Lattner 053a28a397 eliminate the CheckMultiOpcodeMatcher code and have each
ComplexPattern at the root be generated multiple times, once
for each opcode they are part of.  This encourages factoring
because the opcode checks get treated just like everything
else in the matcher.

llvm-svn: 97439
2010-03-01 07:17:40 +00:00
Chris Lattner f4d1775263 add a new OPC_SwitchOpcode which is semantically equivalent
to a scope where every child starts with a CheckOpcode, but
executes more efficiently.  Enhance DAGISelMatcherOpt to 
form it.

This also fixes a bug in CheckOpcode: apparently the SDNodeInfo
objects are not pointer comparable, we have to compare the
enum name.

llvm-svn: 97438
2010-03-01 06:59:22 +00:00
Chris Lattner db5b73a77f pull MarkFlagResult out from between an EmitNode/CompleteMatch
pair.  This encourages MorphNodeTo formation, this gets us 200
more MorphNodeTo's on X86 and shrinks the table a bit.

llvm-svn: 97434
2010-03-01 02:33:14 +00:00
Chris Lattner 4634d9beef enhance RecordNode and RecordChild comments to indicate what
slot they're recording into, no functionality change.

llvm-svn: 97433
2010-03-01 02:24:17 +00:00
Chris Lattner 90b1b9d984 Emit redundant opcode checks for andimm and orimm tests at root
so that we get grouping at the top level.

Add an optimization to reorder type check & record nodes
after opcode checks.  We prefer to expose tree shape 
matching which improves grouping and will enhance the next
optimization.

llvm-svn: 97432
2010-03-01 02:15:34 +00:00
Chris Lattner 58e7dad842 inline the node transforms and node predicates into the generated
dispatcher method.  This eliminates the dependence of the new isel's
generated code on the old isel's predicates, however some random
hand written isel code still uses them.

llvm-svn: 97431
2010-03-01 01:54:19 +00:00
Chris Lattner 560169d5c4 simplify some code now that chain/flag results are not stored in
the vtlist for emitnode.

llvm-svn: 97429
2010-02-28 23:00:47 +00:00
Chris Lattner d86751711d don't emit useless functions. These were producing
warnings in release-assert builds if there were no cases.

llvm-svn: 97428
2010-02-28 22:57:03 +00:00
Mikhail Glushenkov abd56bde0e 80-col violations/trailing whitespace.
llvm-svn: 97427
2010-02-28 22:54:30 +00:00
Chris Lattner 53cf6b8444 eliminate GetInt1/2
llvm-svn: 97426
2010-02-28 22:38:43 +00:00
Chris Lattner 5ef43cec36 hoist the new isel interpreter out of DAGISelHeader.h
(which gets #included into the middle of each 
target's DAGISel class) into a .cpp file where it is
only compiled once.

llvm-svn: 97425
2010-02-28 22:37:22 +00:00
Chris Lattner d303a365df change a few opcodes to use VBRs instead of embedding
immediate sizes into the opcode.

llvm-svn: 97423
2010-02-28 22:14:32 +00:00
Chris Lattner 16e601eea1 move all the opcodes out of DAGISelHeader.h (which gets
#included into the middle of each isel class) into a real 
header.

llvm-svn: 97421
2010-02-28 21:58:42 +00:00
Chris Lattner b6ac685606 resolve a fixme by using hte new flag.
llvm-svn: 97420
2010-02-28 21:56:16 +00:00
Chris Lattner a838264af1 enhance the EmitNode/MorphNodeTo operands to take a bit that
specifies whether there is an output flag or not.  Use this
instead of redundantly encoding the chain/flag results in the
output vtlist.

llvm-svn: 97419
2010-02-28 21:53:42 +00:00
Chris Lattner af197502d6 enhance the new isel to handle the 'node already exists'
case of MorphNodeTo directly.

llvm-svn: 97417
2010-02-28 21:36:14 +00:00
Chris Lattner 9d67dcadce use MorphNodeTo instead of SelectNodeTo. SelectNodeTo
is just a silly wrapper around MorphNodeTo.

llvm-svn: 97416
2010-02-28 20:55:18 +00:00
Chris Lattner 102a8a01e6 enhance the new isel to use SelectNodeTo for most patterns,
even some the old isel didn't.  There are several parts of
this that make me feel dirty, but it's no worse than the
old isel.  I'll clean up the parts I can do without ripping
out the old one next.

llvm-svn: 97415
2010-02-28 20:49:53 +00:00
Erick Tryzelaar 84f5ba80df Add support getting the operands of a User to ocaml.
llvm-svn: 97414
2010-02-28 20:45:03 +00:00
Erick Tryzelaar 9190a2af9d Add support for global aliases to ocaml.
llvm-svn: 97413
2010-02-28 20:44:58 +00:00
Erick Tryzelaar e533a41c24 Add support for inserting inline asm to ocaml.
llvm-svn: 97412
2010-02-28 20:44:53 +00:00
Chris Lattner 90e7924cf0 add some random nounwinds.
llvm-svn: 97411
2010-02-28 20:36:49 +00:00
Chris Lattner 5cc165c67c I'm removing andersaa after the branch is made.
llvm-svn: 97409
2010-02-28 18:57:59 +00:00
Chris Lattner b1af865aa6 simplify this code, return only ever has zero or one operands.
llvm-svn: 97408
2010-02-28 18:53:13 +00:00
John McCall c12b133d00 Properly clear all the extra bits in a significand when making a NaN from an
APInt.  Be certain to set the integer bit in an x87 extended-precision
significand so that we don't accidentally make a pseudo-NaN.

llvm-svn: 97382
2010-02-28 12:49:50 +00:00
John McCall 512b650210 Add an override to StringRef::getAsInteger which parses into an APInt.
It gets its own implementation totally divorced from the (presumably
performance-sensitive) routines which parse into a uint64_t.

Add APInt::operator|=(uint64_t), which is situationally much better than
using a full APInt.

llvm-svn: 97381
2010-02-28 09:55:58 +00:00
Erick Tryzelaar 28db1a3e61 Add support for getting a null pointer.
llvm-svn: 97380
2010-02-28 09:46:27 +00:00
Erick Tryzelaar 272d62bc5a Add a way to look up a type by it's name in a module.
llvm-svn: 97379
2010-02-28 09:46:21 +00:00
Erick Tryzelaar 6fdb7a6547 Add replace_all_uses_with to ocaml.
llvm-svn: 97378
2010-02-28 09:46:16 +00:00
Erick Tryzelaar 06894b3824 Add support for global variables in an address space for llvm-c and ocaml.
llvm-svn: 97377
2010-02-28 09:46:13 +00:00
Erick Tryzelaar 0fb26ef01f Add indirect br support to llvm-c and ocaml.
llvm-svn: 97376
2010-02-28 09:46:06 +00:00
Erick Tryzelaar d8531faf95 Add metadata functions to llvm-c and ocaml.
llvm-svn: 97375
2010-02-28 09:45:59 +00:00
Chris Lattner 56c50da3f6 remove redundant instruction.
llvm-svn: 97374
2010-02-28 07:23:21 +00:00
Erick Tryzelaar 4c340c7f7f Add the new builder arthmetic instructions to llvm-c and ocaml.
llvm-svn: 97372
2010-02-28 05:51:43 +00:00
Erick Tryzelaar a8053dfd27 Add the new union arthmetic instructions to llvm-c and ocaml.
llvm-svn: 97371
2010-02-28 05:51:33 +00:00
Erick Tryzelaar 318317961c Add generic binary op and cast builder functions.
llvm-svn: 97370
2010-02-28 05:51:27 +00:00
Erick Tryzelaar eaaac73c1d Rename ocaml vmcore tests to make it easier to insert tests.
llvm-svn: 97369
2010-02-28 05:51:21 +00:00
Erick Tryzelaar 5bfa919e66 Fix incorrect uses of an ocaml llbuilder without extracting it from ocaml.
llvm-svn: 97368
2010-02-28 05:51:16 +00:00
Erick Tryzelaar 4417431e0e Remove malloc and free from the ocaml bindings.
llvm-svn: 97367
2010-02-28 05:51:09 +00:00
Bob Wilson 1136166ee9 Revert r97245 which seems to be causing performance problems.
llvm-svn: 97366
2010-02-28 05:34:05 +00:00
John McCall dcb9a7ad3d Teach APFloat how to create both QNaNs and SNaNs and with arbitrary-width
payloads.  APFloat's internal folding routines always make QNaNs now,
instead of sometimes making QNaNs and sometimes SNaNs depending on the
type.

llvm-svn: 97364
2010-02-28 02:51:25 +00:00
Chris Lattner abb1c7912e enhance EmitNodeMatcher to keep track of the recorded slot numbers
it will populate.

llvm-svn: 97363
2010-02-28 02:41:25 +00:00
Chris Lattner c3f80e0806 add infrastructure to support forming selectnodeto. Not used yet
because I have to go on another detour first.

llvm-svn: 97362
2010-02-28 02:31:26 +00:00
Dan Gohman 34021b7445 Don't try to replace physical registers when doing CSE.
llvm-svn: 97360
2010-02-28 01:33:43 +00:00
Dan Gohman 0d8a9af7b8 Add a flag to addPassesToEmit* to disable the Verifier pass run
after LSR, so that clients can opt in.

llvm-svn: 97357
2010-02-28 00:41:59 +00:00
Chris Lattner 99e53b3b33 Generalize my hack to use SDNodeInfo to find out when a
node is always guaranteed to have a particular type 
instead of hacking in ISD::STORE explicitly.  This allows
us to use implied types for a broad range of nodes, even
target specific ones.

llvm-svn: 97355
2010-02-28 00:22:30 +00:00
Dan Gohman bdd6405f29 Implement XMM subregs.
Extracting the low element of a vector is now done with EXTRACT_SUBREG,
and the zero-extension performed by load movss is now modeled with
SUBREG_TO_REG, and so on.

Register-to-register movss and movsd are no longer considered copies;
they are two-address instructions which insert a scalar into a vector.

llvm-svn: 97354
2010-02-28 00:17:42 +00:00
Dan Gohman 6fb6a59766 Don't unconditionally suppress hoisting of instructions with implicit
defs or uses. The regular def and use checking below covers them, and
can be more precise. It's safe to hoist an instruction with a dead
implicit def if the register isn't live into the loop header.

llvm-svn: 97352
2010-02-28 00:08:44 +00:00
Dan Gohman 45e7ffc350 Add nounwinds.
llvm-svn: 97349
2010-02-27 23:53:53 +00:00
Dan Gohman 8c5d683aa9 The mayHaveSideEffects flag is no longer used.
llvm-svn: 97348
2010-02-27 23:47:46 +00:00
Chris Lattner 278606b06e change CheckOpcodeMatcher to hold the SDNodeInfo instead of
the opcode name.  This gives the optimizer more semantic info.

llvm-svn: 97346
2010-02-27 21:48:43 +00:00
Chris Lattner f159afc951 remove a bogus pattern, which had the same pattern as STDU
but codegen'd differently.  This really wanted to use some
sort of subreg to get the low 4 bytes of the G8RC register
or something.  However, it's invalid and nothing is testing
it, so I'm just zapping the bogosity.

llvm-svn: 97345
2010-02-27 21:15:32 +00:00
Chris Lattner fb2a0f20dd add another case from the ppc backend. This is obviously a huge and
dissatisfying hack.  TODO: Improve it. :)

llvm-svn: 97317
2010-02-27 08:19:47 +00:00
Chris Lattner a2075d44ad fix an incorrect (overly conservative) predicate.
llvm-svn: 97316
2010-02-27 08:18:55 +00:00
Chris Lattner 21a7bf3fab fix logic in DEBUG.
llvm-svn: 97315
2010-02-27 08:13:23 +00:00
Chris Lattner 2586c86a8a teach the optimizer that opcode == ISD::STORE is contradictory
with getType() == MVT::i32 etc.  Teach it that two different
integer constants are contradictory.  This cuts 1K off the X86
table, down to 98k

llvm-svn: 97314
2010-02-27 08:11:15 +00:00
Chris Lattner 2af7e3dceb fix grammaro's pointed out by daniel
llvm-svn: 97313
2010-02-27 07:50:40 +00:00
Chris Lattner c577b816fc Teach the grouper some simple tricks about looking contradictory
predicates.  For example if we have:

Scope:
  CheckType i32
    ABC
  CheckType f32
    DEF
  CheckType i32
    GHI

Then we know that we can transform this into:
Scope:
  CheckType i32
    Scope
      ABC
      GHI
  CheckType f32
    DEF

This reorders the check for the 'GHI' predicate above
the check for the 'DEF' predidate.  However it is safe to do this
in this situation because we know that a node cannot have both an
i32 and f32 type.

We're now doing more factoring that the old isel did.

llvm-svn: 97312
2010-02-27 07:49:13 +00:00
Evan Cheng 228c31f045 Re-apply 97040 with fix. This survives a ppc self-host llvm-gcc bootstrap.
llvm-svn: 97310
2010-02-27 07:36:59 +00:00
Chris Lattner 7f28b8e8eb use DEBUG instead of DebugFlag directly so that this
respects -debug-only=something-else.

llvm-svn: 97307
2010-02-27 06:51:44 +00:00
Chris Lattner d9e1e83e3b implement a new optimization to sink pattern predicates (like isSSE1)
as deeply into the pattern as we can get away with.  In pratice, this 
means "all the way to to the emitter code, but not across 
ComplexPatterns".  This substantially increases the amount of factoring
we get.

llvm-svn: 97305
2010-02-27 06:22:57 +00:00
Bill Wendling e7179e8b76 The TType is always absptr on Mach-O...at least for now.
llvm-svn: 97295
2010-02-27 01:05:51 +00:00
Jeffrey Yasskin 67c0aece75 Fix the ocaml bindings for the bitcode reader.
llvm_get_module_provider() was returning a value of the wrong type.

llvm-svn: 97290
2010-02-27 00:25:18 +00:00
Chris Lattner d887f1da73 fix PR6414, a nondeterminism issue in IPSCCP which was because
of a subtle interation in a loop operating in densemap order.

llvm-svn: 97288
2010-02-27 00:07:42 +00:00
Chris Lattner 65d3a0a5f8 Fix rdar://7694996 a miscompile of 183.equake from my patch yesterday,
confusing the old MAT variable with the new GlobalType one.  This caused
us to promote the @disp global pointer into:

@disp.body = internal global double*** undef

instead of:

@disp.body = internal global [3 x double**] undef

llvm-svn: 97285
2010-02-26 23:42:13 +00:00
Chris Lattner da5fcdace0 remove dead code, by this point all uses of CI are gone.
llvm-svn: 97283
2010-02-26 23:35:25 +00:00
Jeffrey Yasskin a433ee3302 Test that docs are updating.
llvm-svn: 97279
2010-02-26 22:25:06 +00:00
John McCall b42cc681ba Make APFloat's string-parsing routines a bit safer against very large exponents.
llvm-svn: 97278
2010-02-26 22:20:41 +00:00
Bill Wendling c3a9376215 A much cleaner (and less code!) way of inserting the correct amount of padding
for alignment into the LSDA. If the TType base offset is emitted, then put the
padding there. Otherwise, put it in the call site table length. There will be no
conflict between the two sites when placing the padding in one place.

llvm-svn: 97277
2010-02-26 22:17:52 +00:00
Johnny Chen 38e7bb6f34 Added the follwoing 32-bit Thumb instructions for disassembly only:
o Parallel addition and subtraction, signed/unsigned
o Miscellaneous operations: QADD, QDADD, QSUB, QDSUB
o Unsigned sum of absolute differences [and accumulate]: USAD8, USADA8
o Signed/Unsigned saturate: SSAT, SSAT16, USAT, USAT16
o Signed multiply accumulate long (halfwords): SMLAL<x><y>
o Signed multiply accumulate/subtract [long] (dual): SMLAD[x], SMLALD[X], SMLSD[X], SMLSLD[X]
o Signed dual multiply add/subtract [long]: SMUAD[X], SMUSD[X]

llvm-svn: 97276
2010-02-26 22:04:29 +00:00
Jakob Stoklund Olesen 17d54920d7 Merge PPC instructions FMRS and FMRD into a single FMR instruction.
This is possible because F8RC is a subclass of F4RC. We keep FMRSD around so
fextend has a pattern.

Also allow folding of memory operands on FMRSD.

llvm-svn: 97275
2010-02-26 21:53:24 +00:00
Dan Gohman b53dababc4 Fix grammaro in a comment.
llvm-svn: 97273
2010-02-26 21:45:37 +00:00
Dan Gohman 1b9dd248e4 Add Revision keywords to these files, as it's common for them to be
copied out of the source tree.

llvm-svn: 97270
2010-02-26 21:38:04 +00:00
Bill Wendling fea6c4efc7 Comment typo.
llvm-svn: 97269
2010-02-26 21:31:01 +00:00
Chris Lattner 134a9dc114 don't build edis if the x86 target isn't enabld.
llvm-svn: 97268
2010-02-26 21:26:33 +00:00
Dan Gohman 94fa92b441 Improve the vim code for highlighting trailing whitespace and lines
longer than 80 columns. This replaces the heavy-handed "textwidth"
mechanism, and makes the trailing-whitespace highlighting lazy so
that it isn't constantly jumping on the user during typing.

llvm-svn: 97267
2010-02-26 21:24:46 +00:00
Tanya Lattner 0569db0699 Test autoupdate.
llvm-svn: 97266
2010-02-26 21:23:59 +00:00
Tanya Lattner 7bb1a6e306 Test auto update.
llvm-svn: 97265
2010-02-26 21:19:09 +00:00
Dan Gohman 91f97f094f Add the alignstack keyword.
llvm-svn: 97264
2010-02-26 21:16:17 +00:00
Dan Gohman ae53e2c1f0 Remove bogus Updated line.
llvm-svn: 97263
2010-02-26 21:15:49 +00:00
Jakob Stoklund Olesen ddbf7a858e Use the right floating point load/store instructions in PPCInstrInfo::foldMemoryOperandImpl().
The PowerPC floating point registers can represent both f32 and f64 via the
two register classes F4RC and F8RC. F8RC is considered a subclass of F4RC to
allow cross-class coalescing. This coalescing only affects whether registers
are spilled as f32 or f64.

Spill slots must be accessed with load/store instructions corresponding to the
class of the spilled register. PPCInstrInfo::foldMemoryOperandImpl was looking
at the instruction opcode which is wrong.

X86 has similar floating point register classes, but doesn't try to fold
memory operands, so there is no problem there.

llvm-svn: 97262
2010-02-26 21:09:24 +00:00
Jakob Stoklund Olesen 391700872f Remove dead code
llvm-svn: 97261
2010-02-26 21:09:20 +00:00
Jeffrey Yasskin db341a5282 Remove REQUIRES_EH from the suggested set of make variables, since users can
build with exceptions even if LLVM is built without.

llvm-svn: 97260
2010-02-26 20:43:33 +00:00
Benjamin Kramer 7f98b46dc1 Replace a temporary std::string with SmallString.
llvm-svn: 97259
2010-02-26 20:28:29 +00:00
Dan Gohman 42f5691d3c Fix typos in comments.
llvm-svn: 97257
2010-02-26 20:18:32 +00:00
Dale Johannesen dd33104203 Move dbg_value generation to target-independent FastISel,
as X86 is currently the only FastISel target.  Per review.

llvm-svn: 97255
2010-02-26 20:01:55 +00:00
Dale Johannesen 3e7df345c8 Further constify MDNode* references.
llvm-svn: 97252
2010-02-26 19:39:56 +00:00
Dale Johannesen e6b53047bb Add type printing for Metadata pseudo.
llvm-svn: 97251
2010-02-26 19:38:59 +00:00
Bob Wilson ed1b0c31a7 Move the EnableFullLoadPRE flag from a separate command-line option to an
argument of createGVNPass and set it automatically for -O3.

llvm-svn: 97245
2010-02-26 19:09:47 +00:00
Sanjiv Gupta f8bd9413d5 disable-mem2reg and disable-gvn options should not be used by the driver.
llvm-svn: 97236
2010-02-26 18:38:44 +00:00
Bob Wilson d4655991c3 Remove unused "NoPRE" parameter in GVN and createGVNPass().
llvm-svn: 97235
2010-02-26 18:35:19 +00:00
Chris Lattner bb592eb9d0 pass in more section kinds, enough to get the .align 0x90
stuff to emit optimal nops in the right places.

llvm-svn: 97233
2010-02-26 18:32:26 +00:00
Sanjiv Gupta ef686dc38d The cloner has nothing to do if any of the main or ISR entrypoints are not
present in the module.

llvm-svn: 97232
2010-02-26 18:32:18 +00:00
Chris Lattner 0521c09d97 fix PR6435 another bug from the MallocInst elimination work.
llvm-svn: 97231
2010-02-26 18:23:13 +00:00
Jeffrey Yasskin f074cb8eea Set svn:keywords property on docs/Packaging.html.
llvm-svn: 97230
2010-02-26 18:07:00 +00:00
Jeffrey Yasskin 56917d1d74 Add to the packaging advice.
llvm-svn: 97229
2010-02-26 18:03:43 +00:00
Sanjiv Gupta 2bdbb3c167 Reapply things reverted back in 97220, with the fixed test case.
llvm-svn: 97228
2010-02-26 17:59:28 +00:00
Dan Gohman 952f6f98bb movl is a cheaper way to materialize 0 without clobbering EFLAGS than movabsq.
llvm-svn: 97227
2010-02-26 16:49:27 +00:00
Richard Osborne 333300e0df Fix XCoreTargetLowering::isLegalAddressingMode() to handle VoidTy.
Previously LoopStrengthReduce would sometimes be unable to find
a legal formula, causing an assertion failure.

llvm-svn: 97226
2010-02-26 16:44:51 +00:00
Chandler Carruth 663f658d87 Revert r97211 and r97213 to get the build green again.
llvm-svn: 97220
2010-02-26 08:43:09 +00:00
Chris Lattner 4835aecd95 add some helpful comments to the emitter
llvm-svn: 97219
2010-02-26 08:15:02 +00:00
Chris Lattner 4f9a671a30 switch from my nice hashtable based merging solution to a
gross little neighbor merging implementation.  This one has
the benefit of not violating the ordering of patterns, so it
generates code that passes tests again.

llvm-svn: 97218
2010-02-26 08:08:41 +00:00
Chris Lattner 1ffcde2f3b fix same bug in CheckChainCompatibleMatcher::isEqualImpl
llvm-svn: 97217
2010-02-26 08:06:02 +00:00
Chris Lattner a6142a241a fix a nasty bug in CheckTypeMatcher::isEqualImpl
llvm-svn: 97216
2010-02-26 08:05:36 +00:00
Chris Lattner be5b634cea finish off the factoring optimization along the lines of the
current design.  This generates a matcher that successfully
runs, but it turns out that the factoring we're doing violates
the ordering of patterns, so we end up matching (e.g.) movups
where we want movaps.  This won't due, but I'll address this in
a follow on patch.  It's nice to not be on by default yet! :)

llvm-svn: 97215
2010-02-26 07:36:37 +00:00
Chris Lattner 81129177a3 add a new setNumChildren method for resizing scopes. Tweak getHash() so
that we never return a tombstone value, which (thankfully) triggers an
assert in densemap.

llvm-svn: 97214
2010-02-26 07:35:27 +00:00
Sanjiv Gupta 7828ff9535 Currently in LLVM, names of libcalls are assigned during TargetLowering
object construction. There is no provision to change them when the 
code for a function generated. 
So we have to change these names while printing assembly.

llvm-svn: 97213
2010-02-26 07:31:15 +00:00
Chris Lattner 9f960c2d3a fix the matcher in the presence of multiple scopes: we need to save
and restore the entire matcher stack by value.  This is because children
we're testing could do moveparent or other things besides just 
scribbling on additions to the stack.

llvm-svn: 97212
2010-02-26 07:28:20 +00:00
Sanjiv Gupta 528b1465e5 Before converting an operand to mem, check if it is legal to do so.
llvm-svn: 97211
2010-02-26 07:27:35 +00:00
Chris Lattner 044ada532c this file lacks a run line!
llvm-svn: 97208
2010-02-26 02:40:57 +00:00
Dan Gohman 5aa3919218 Fix a typo.
llvm-svn: 97206
2010-02-26 02:15:17 +00:00
Dan Gohman 9300486d68 Delete a bunch of redundant predicates.
llvm-svn: 97201
2010-02-26 01:14:30 +00:00
Bill Wendling 098c91e95b Fix comments.
llvm-svn: 97200
2010-02-26 01:12:52 +00:00
Jeffrey Yasskin 28c341c38f Give packagers some advice about how to build LLVM so it's useful to
the most users.

llvm-svn: 97198
2010-02-26 00:54:42 +00:00
Bill Wendling 6394521a2b Add another (and hopefully the last) exception case, where once we recalculate
the alignment requirement, if it no longer makes the TType base offset overflow
into extra bytes, then we need to pad to those bytes ourselves.

llvm-svn: 97196
2010-02-26 00:43:54 +00:00
Bill Wendling 6f14f6a962 And should use the correct variable.
llvm-svn: 97193
2010-02-26 00:24:25 +00:00
Bill Wendling 47c3269236 Got assertion check backwards.
llvm-svn: 97192
2010-02-26 00:22:42 +00:00
Bill Wendling 24c74f1d9c Catch a corner case where adding the padding to the "TType base offset" field
will eliminate the need for padding in the "Call site table length". E.g., if
we have this:

    GCC_except_table1:
    Lexception1:
        .byte   0xff  ## @LPStart Encoding = omit
        .byte   0x9b  ## @TType Encoding = indirect pcrel sdata4
        .byte   0x7f  ## @TType base offset
        .byte   0x03  ## Call site Encoding = udata4
        .byte   0x89  ## Call site table length

with padding of 1. We want to emit the padding like this:
 
    GCC_except_table1:
    Lexception1:
        .byte   0xff  ## @LPStart Encoding = omit
        .byte   0x9b  ## @TType Encoding = indirect pcrel sdata4
        .byte   0xff  ## @TType base offset
        .space  1,0   ## Padding
        .byte   0x03  ## Call site Encoding = udata4
        .byte   0x89  ## Call site table length

and not with padding on the "Call site table length" entry.

llvm-svn: 97183
2010-02-25 23:52:44 +00:00
Dan Gohman d0c7fd8598 Fix a few more typos.
llvm-svn: 97182
2010-02-25 23:51:27 +00:00
Dan Gohman f804f182d0 Fix a typo.
llvm-svn: 97181
2010-02-25 23:41:41 +00:00
John Criswell 4d377d8c59 Added SAFECode (safecode) to the list of projects to automatically configure.
llvm-svn: 97179
2010-02-25 22:57:19 +00:00
Chris Lattner 7939f795f5 rewrite OptimizeGlobalAddressOfMalloc to fix PR6422, some bugs
introduced when mallocinst was eliminated. 

llvm-svn: 97178
2010-02-25 22:33:52 +00:00
Daniel Dunbar de277d48f5 tests: Propogate the HOME environment variable through to tests. I'm ambivalent
about this, but it can be useful for users who use ccache, since the LLVMC tests
are fond of calling gcc.

llvm-svn: 97171
2010-02-25 22:09:09 +00:00
Bill Wendling bc4024f72c Fix HTML.
llvm-svn: 97170
2010-02-25 21:23:24 +00:00
Bill Wendling 60aa4dfb53 Make comment more meaningful.
llvm-svn: 97169
2010-02-25 21:19:47 +00:00
Dan Gohman 2a8e3777b4 Fix ExpandVectorBuildThroughStack for the case where the
operands are themselves vectors. Based on a patch by
Micah Villmow for PR6338.

llvm-svn: 97165
2010-02-25 20:30:49 +00:00
Johnny Chen 3adff378cc Added the following 32-bit Thumb instructions for disassembly only: SMC, RFE,
and SRS.

llvm-svn: 97164
2010-02-25 20:25:24 +00:00
Johnny Chen 871e5b0926 Added the 32-bit Thumb instructions (BXJ) for disassembly only.
llvm-svn: 97163
2010-02-25 19:05:29 +00:00
Chris Lattner f7fc2d8b86 change the scope node to include a list of children to be checked
instead of to have a chained series of scope nodes.  This makes
the generated table smaller, improves the efficiency of the
interpreter, and make the factoring optimization much more 
reasonable to implement.

llvm-svn: 97160
2010-02-25 19:00:39 +00:00
Johnny Chen e285f70a42 Added the 32-bit Thumb instructions (MRS and MSR) for disassembly only.
llvm-svn: 97159
2010-02-25 18:46:43 +00:00
Kevin Enderby 7f99302dc9 This is a patch to the assembler frontend to detect when aligning a text
section with TextAlignFillValue and calls EmitCodeAlignment() instead of
calling EmitValueToAlignment().  This allows x86 assembly code to be aligned
with optimal nops.

llvm-svn: 97158
2010-02-25 18:46:04 +00:00
Dan Gohman 048b6485b7 stkrc is gone.
llvm-svn: 97156
2010-02-25 18:18:49 +00:00
Dan Gohman 22d11ee6bb Add the union keyword.
llvm-svn: 97155
2010-02-25 18:17:58 +00:00
Dan Gohman 2c50e05587 Merge the advanced getelementptr FAQ into the regular
getelementptr FAQ.

llvm-svn: 97154
2010-02-25 18:16:03 +00:00
Daniel Dunbar 68e22cb5a0 Fix TextAlignFillValue in a few places
llvm-svn: 97151
2010-02-25 18:07:10 +00:00
Daniel Dunbar ce33de5b98 Add simple script for finding most-recent-rev-before-N in a git-svn repo; useful
when bisecting multiple repos in sync.

llvm-svn: 97150
2010-02-25 18:07:07 +00:00
Johnny Chen 74cca5a989 Added the following 16-bit Thumb instructions for disassembly only: YIELD, WFE,
WFI, SEV, SETEND.

llvm-svn: 97149
2010-02-25 17:51:03 +00:00
Chris Lattner 36b5414c4e remove a dead PatLeaf, I previously changed all uses to use -1 instead.
llvm-svn: 97148
2010-02-25 17:39:34 +00:00
Dan Gohman 1ad1499d14 Fix a typo.
llvm-svn: 97144
2010-02-25 16:51:31 +00:00
Dan Gohman 8848111952 Clarify the description of pointer types, and move the
address space content to its own paragraph.

llvm-svn: 97143
2010-02-25 16:50:07 +00:00
Dan Gohman a2684dbff0 Teach the constant folder about union types.
llvm-svn: 97142
2010-02-25 16:45:19 +00:00
Dan Gohman 935faff0bd Remove code which assumes it knows how vectors are stored in memory.
llvm-svn: 97141
2010-02-25 16:05:33 +00:00
Dan Gohman e790b61ebd Add more information to the getSizeOf comment.
llvm-svn: 97140
2010-02-25 15:55:28 +00:00
Dan Gohman 91bf1914da Remove this paragraph. Vectors may not always have the same layout as
arrays now.

llvm-svn: 97139
2010-02-25 15:53:42 +00:00
Dan Gohman 9b80f86e5b Revert r97064. Duncan pointed out that bitcasts are defined in
terms of store and load, which means bitcasting between scalar
integer and vector has endian-specific results, which undermines
this whole approach.

llvm-svn: 97137
2010-02-25 15:20:39 +00:00
Nick Lewycky a72e1af8bf Make the side-numbering of instructions used by metadata (which is needed to
keep track of instructions that return void) per-function. This fixes PR5278.

This breaks backwards compatibility with the metadata format. That's okay
because we haven't released the metadata bitcode yet.

llvm-svn: 97132
2010-02-25 08:30:17 +00:00
Chris Lattner 62702da070 Implement the first half of redundancy factoring: efficiently
splitting all the patterns under scope nodes into equality sets
based on their first node.  The second step is to rewrite the
graph info a form that exposes the sharing.  Before I do this, 
I want to redesign the Scope node.

llvm-svn: 97130
2010-02-25 07:45:24 +00:00
Dan Gohman a9c205cc88 Make LoopSimplify change conditional branches in loop exiting blocks
which branch on undef to branch on a boolean constant for the edge
exiting the loop. This helps ScalarEvolution compute trip counts for
loops.

Teach ScalarEvolution to recognize single-value PHIs, when safe, and
ForgetSymbolicName to forget such single-value PHI nodes as apprpriate
in ForgetSymbolicName.

llvm-svn: 97126
2010-02-25 06:57:05 +00:00