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Author SHA1 Message Date
Evan Cheng
ab92cd0412 Add count() and lookup() to ScopedHashTable. It might be useful to get information out of the hash table. 
llvm-svn: 97542
 2010-03-02 02:37:33 +00:00
Chris Lattner
9a28d163c2 Use the right induction variable. 
llvm-svn: 97541
 2010-03-02 02:37:23 +00:00
Chris Lattner
0b41a42411 Rewrite chain handling validation and input TokenFactor handling 
stuff now that we don't care about emulating the old broken 
behavior of the old isel.  This eliminates the 
'CheckChainCompatible' check (along with IsChainCompatible) which
did an incorrect and inefficient scan *up* the chain nodes which
happened as the pattern was being formed and does the validation
at the end in HandleMergeInputChains when it forms a structural 
pattern.  This scans "down" the graph, which means that it is
quickly bounded by nodes already selected.  This also handles
token factors that get "trapped" in the dag.

Removing the CheckChainCompatible nodes also shrinks the 
generated tables by about 6K for X86 (down to 83K).

There are two pieces remaining before I can nuke PreprocessRMW:
1. I xfailed a test because we're now producing worse code in a 
   case that has nothing to do with the change: it turns out that
   our use of MorphNodeTo will leave dead nodes in the graph
   which (depending on how the graph is walked) end up causing
   bogus uses of chains and blocking matches.  This is really 
   bad for other reasons, so I'll fix this in a follow-up patch.

2. CheckFoldableChainNode needs to be improved to handle the TF.

llvm-svn: 97539
 2010-03-02 02:22:10 +00:00
Dan Gohman
56a20fc5eb Fix several places to handle vector operands properly. 
Based on a patch by Micah Villmow for PR6438.

llvm-svn: 97538
 2010-03-02 02:14:38 +00:00
Dan Gohman
1625456786 Non-affine post-inc SCEV expansions have more code which must be 
emitted after the increment. Make sure the insert position
reflects this. This fixes PR6453.

llvm-svn: 97537
 2010-03-02 01:59:21 +00:00
Bill Wendling
5990930d72 Remove dead parameter passing. 
llvm-svn: 97536
 2010-03-02 01:55:18 +00:00
Devang Patel
8fffee565c Constructors and operators for anonymous aggregates does not names. Do not force empty AT_name attribute in such cases. 
llvm-svn: 97533
 2010-03-02 01:26:20 +00:00
Dan Gohman
37bf232609 Floating-point add, sub, and mul are now spelled fadd, fsub, and fmul, 
respectively.

llvm-svn: 97531
 2010-03-02 01:11:08 +00:00
Dan Gohman
df1b620863 PerformTailCallOpt was renamed to GuaranteedTailCallOpt to 
better reflect its meaning, now that tail call optimizations
are done by default in some cases.

llvm-svn: 97530
 2010-03-02 01:08:11 +00:00
Chris Lattner
53bd8b1717 remove dead code. 
llvm-svn: 97529
 2010-03-02 00:40:26 +00:00
Chris Lattner
42b5571d38 add some missing \n's 
llvm-svn: 97527
 2010-03-02 00:13:03 +00:00
Bob Wilson
12797a7a6c Don't attempt load PRE when there is no real redundancy (i.e., the load is in 
a loop and is itself the only dependency).

llvm-svn: 97526
 2010-03-02 00:09:29 +00:00
Chris Lattner
e6f86e288c refactor some code out of OPC_EmitMergeInputChains into a 
new helper function.

llvm-svn: 97525
 2010-03-02 00:00:03 +00:00
Chris Lattner
35a2fb376d remove some functions that were only used by the 
old isel generated code.

llvm-svn: 97522
 2010-03-01 23:40:33 +00:00
Bob Wilson
9207e3f81f When GVN needs to split critical edges for load PRE, check all of the 
predecessors before returning.  Otherwise, if multiple predecessor edges need
splitting, we only get one of them per iteration.  This makes a small but
measurable compile time improvement with -enable-full-load-pre.

llvm-svn: 97521
 2010-03-01 23:37:32 +00:00
Chris Lattner
b1b0f749ed fixme resolved. 
llvm-svn: 97517
 2010-03-01 23:08:51 +00:00
Chris Lattner
745181da4b remove a little hack I did for the old isel, not needed 
now that it is gone.

llvm-svn: 97516
 2010-03-01 22:51:11 +00:00
Chris Lattner
e37f8fa74a resolve some fixmes 
llvm-svn: 97515
 2010-03-01 22:49:06 +00:00
Chris Lattner
4fb9708649 resolve a fixme and simplify code by moving insertion of the 
EmitMergeInputChainsMatcher node up into EmitResultCode.  This
doesn't have much of an effect on the generated code, the X86
table is exactly the same size.

llvm-svn: 97514
 2010-03-01 22:46:42 +00:00
Chris Lattner
14ef40723a resolve a fixme by having the .td file parser reject thigns like 
(set GPR, somecomplexpattern)

if somecomplexpattern doesn't declare what it can match.

llvm-svn: 97513
 2010-03-01 22:29:19 +00:00
Evan Cheng
c97b5fe4b9 MemoryDepAnalysis is not used if redundant load processing is disabled. 
llvm-svn: 97512
 2010-03-01 22:23:12 +00:00
Chris Lattner
4ecd0eb275 remove all but one version of SelectionDAG::MorphNodeTo 
(the most general) the others are dead.

llvm-svn: 97511
 2010-03-01 22:20:05 +00:00
Chris Lattner
5dea29df83 remove dead code, simplify. 
llvm-svn: 97510
 2010-03-01 22:19:47 +00:00
Chris Lattner
c0839055a9 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
63fd249741 tolerate factoring the *last* node for CellSPU. 
llvm-svn: 97508
 2010-03-01 22:04:33 +00:00
Evan Cheng
c0a816fd16 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
7cc2cd25c4 optimize tblgen compile time by eliminating the old isel. 
llvm-svn: 97504
 2010-03-01 21:49:54 +00:00
Dan Gohman
ed398abb31 Make llc opt into the addPassesToEmitFile verify pass. 
llvm-svn: 97502
 2010-03-01 21:45:21 +00:00
Chris Lattner
fa3b904028 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
fe3fae23e4 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
9f858ad942 Remove tests that checks @llvm.dbg.stoppoint handling. 
llvm-svn: 97493
 2010-03-01 20:33:48 +00:00
Chris Lattner
04209058b9 stop using anders-aa 
llvm-svn: 97492
 2010-03-01 20:24:50 +00:00
Chris Lattner
ac2f5c24a0 stop using anders-aa 
llvm-svn: 97491
 2010-03-01 20:24:05 +00:00
Chris Lattner
5649a97c00 remove andersen's tests. 
llvm-svn: 97490
 2010-03-01 20:23:15 +00:00
Devang Patel
6dd4084f57 @llvm.dbg.stoppoint intrinsic is not used anymore. 
Delete dead testcase.

llvm-svn: 97489
 2010-03-01 19:46:08 +00:00
Ted Kremenek
328c095a12 Update CMake build. 
llvm-svn: 97488
 2010-03-01 19:42:47 +00:00
Devang Patel
ef282ea4c2 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
8396bae92e don't emit the old sdnodexform stuff for the new isel. 
llvm-svn: 97486
 2010-03-01 19:39:15 +00:00
Chris Lattner
21ad1fd291 stop using generated sdnodexforms. 
llvm-svn: 97485
 2010-03-01 19:38:53 +00:00
Chris Lattner
302e7118ed note that andersaa was removed in 2.7 
llvm-svn: 97484
 2010-03-01 19:29:17 +00:00
Chris Lattner
ebb4fbf691 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
37f3172799 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
66fd0f6b4b 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
4853c9c8d1 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
5efedae9ae 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
f05e20ef3c Remove dead test. 
llvm-svn: 97474
 2010-03-01 19:04:23 +00:00
Devang Patel
cdb2c39383 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
de233f5c2b Missed a \n in previous commit. 
llvm-svn: 97472
 2010-03-01 19:00:55 +00:00
Torok Edwin
2f53637d40 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
b65ac4a796 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