Commit Graph

58125 Commits

Author SHA1 Message Date
Chris Lattner
c6d7ad3c7d 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97539 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 02:22:10 +00:00
Dan Gohman
5b870aff81 Fix several places to handle vector operands properly.
Based on a patch by Micah Villmow for PR6438.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97538 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 02:14:38 +00:00
Dan Gohman
069d6f3396 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97537 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 01:59:21 +00:00
Bill Wendling
46ada19645 Remove dead parameter passing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97536 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 01:55:18 +00:00
Devang Patel
6b506cbce0 Constructors and operators for anonymous aggregates does not names. Do not force empty AT_name attribute in such cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97533 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 01:26:20 +00:00
Dan Gohman
a9445e11c5 Floating-point add, sub, and mul are now spelled fadd, fsub, and fmul,
respectively.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97531 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 01:11:08 +00:00
Dan Gohman
fbbee8d7f9 PerformTailCallOpt was renamed to GuaranteedTailCallOpt to
better reflect its meaning, now that tail call optimizations
are done by default in some cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97530 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 01:08:11 +00:00
Chris Lattner
319ef94030 remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97529 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 00:40:26 +00:00
Chris Lattner
38fd96731c add some missing \n's
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97527 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 00:13:03 +00:00
Bob Wilson
3bd19d753b 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).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97526 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 00:09:29 +00:00
Chris Lattner
6b30792d2d refactor some code out of OPC_EmitMergeInputChains into a
new helper function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97525 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 00:00:03 +00:00
Chris Lattner
7a855760b1 remove some functions that were only used by the
old isel generated code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97522 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 23:40:33 +00:00
Bob Wilson
70704978af 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97521 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 23:37:32 +00:00
Chris Lattner
8b30b8dd33 fixme resolved.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97517 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 23:08:51 +00:00
Chris Lattner
e60f7b4412 remove a little hack I did for the old isel, not needed
now that it is gone.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97516 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 22:51:11 +00:00
Chris Lattner
67ea6a7111 resolve some fixmes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97515 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 22:49:06 +00:00
Chris Lattner
01bcd947bf 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97514 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 22:46:42 +00:00
Chris Lattner
405f1252b9 resolve a fixme by having the .td file parser reject thigns like
(set GPR, somecomplexpattern)

if somecomplexpattern doesn't declare what it can match.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97513 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 22:29:19 +00:00
Evan Cheng
19d417c346 MemoryDepAnalysis is not used if redundant load processing is disabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97512 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 22:23:12 +00:00
Chris Lattner
df51247725 remove all but one version of SelectionDAG::MorphNodeTo
(the most general) the others are dead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97511 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 22:20:05 +00:00
Chris Lattner
7c720fc33a remove dead code, simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97510 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 22:19:47 +00:00
Chris Lattner
117ccb7e51 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



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97509 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 22:09:11 +00:00
Chris Lattner
f94bc54757 tolerate factoring the *last* node for CellSPU.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97508 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 22:04:33 +00:00
Evan Cheng
73736df88b 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97507 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 22:00:11 +00:00
Chris Lattner
adc5347b54 optimize tblgen compile time by eliminating the old isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97504 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 21:49:54 +00:00
Dan Gohman
d44f16fce7 Make llc opt into the addPassesToEmitFile verify pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97502 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 21:45:21 +00:00
Chris Lattner
31c020a147 remove a terrible hack that disabled assertions from this file because of build time
problems.  rdar://7697850.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97500 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 21:20:46 +00:00
Jakob Stoklund Olesen
e5d90416ee Use methods to determine if a LiveInterval is spillable.
Don't accidentally produce unspillable intervals for deeply nested loops.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97496 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 20:59:38 +00:00
Devang Patel
09a695e396 Remove tests that checks @llvm.dbg.stoppoint handling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97493 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 20:33:48 +00:00
Chris Lattner
f09999e103 stop using anders-aa
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97492 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 20:24:50 +00:00
Chris Lattner
9e5cc28f72 stop using anders-aa
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97491 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 20:24:05 +00:00
Chris Lattner
69ece93669 remove andersen's tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97490 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 20:23:15 +00:00
Devang Patel
929bdfedb8 @llvm.dbg.stoppoint intrinsic is not used anymore.
Delete dead testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97489 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 19:46:08 +00:00
Ted Kremenek
1b6c4bd0e9 Update CMake build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97488 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 19:42:47 +00:00
Devang Patel
9ce6cb8865 Update to use new debug info encoding scheme. As a bonus, now the test passes!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97487 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 19:41:26 +00:00
Chris Lattner
459eeedbe0 don't emit the old sdnodexform stuff for the new isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97486 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 19:39:15 +00:00
Chris Lattner
4c353e3c34 stop using generated sdnodexforms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97485 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 19:38:53 +00:00
Chris Lattner
f220191120 note that andersaa was removed in 2.7
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97484 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 19:29:17 +00:00
Chris Lattner
a9cf19670f remove anders-aa from mainline, it isn't maintained and is
tantalyzing enough that people keep trying to use it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97483 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 19:24:17 +00:00
Johnny Chen
ad4df4c0da Added STRHT for disassembly only and fixed a bug in AI3sthpo class where the W
bit should be set to 0 instead of 1.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97481 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 19:22:00 +00:00
Devang Patel
39ca4ea01a 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97480 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 19:14:25 +00:00
Devang Patel
4a76d17d13 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97477 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 19:09:55 +00:00
Chris Lattner
8a01c8d00d 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



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97475 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 19:05:25 +00:00
Devang Patel
fc242bfac4 Remove dead test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97474 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 19:04:23 +00:00
Devang Patel
1e19cf635d Replace test case that uses @llvm.dbg.* intrinsic with a test that uses metadata.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97473 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 19:02:51 +00:00
Torok Edwin
5520ad4dd9 Missed a \n in previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97472 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 19:00:55 +00:00
Torok Edwin
5c7fc88b55 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97470 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 18:49:10 +00:00
Chris Lattner
7390eebd49 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97469 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 18:47:11 +00:00
Devang Patel
d1f94e90fd These two tests check whether oprimizer safely ignores @llvm.dbg.stoppoint intrinsic or not. This intrinsic is not used anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97468 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 18:45:28 +00:00
John McCall
d44c6cc477 Don't potentially read past the end of the fill data when making a NaN from
an APInt.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97467 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 18:38:45 +00:00