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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
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
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
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
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
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
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
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
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
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
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
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
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
Dan Gohman
042919c0c5 Fix optimization of ISD::TRUNCATE on vector operands. Based on a patch 
by Micah Villmow for PR6335.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97461 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-01 17:59:21 +00:00
Dan Gohman
ce931c65ee Add explicit keywords. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97460 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-01 17:56:46 +00:00
Dan Gohman
7cbf5a803e Add a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97459 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-01 17:56:04 +00:00
Dan Gohman
c5e49c64d1 Add some debug output to LoopSimplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97458 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-01 17:55:27 +00:00
Dan Gohman
3f46a3abee Spelling fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97453 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-01 17:49:51 +00:00
Dan Gohman
85e9601862 This is now done. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97450 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-01 17:43:57 +00:00
Dan Gohman
52fd7da295 Fix a missing newline in debug output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97449 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-01 17:42:55 +00:00
Dan Gohman
fd6f338ab1 Prune #includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97448 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-01 17:42:17 +00:00
Dan Gohman
16b77211cf Don't print "Modified" for passes which haven't modified anything. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97446 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-01 17:34:28 +00:00
Nathan Keynes
1ac1c1ee5d Add JIT support to the TODO list (test commit) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97443 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-01 10:40:41 +00:00
Chris Lattner
7d892d6e6d some trivial microoptimizations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97441 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-01 07:43:08 +00:00
Chris Lattner
fa342faef9 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97439 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-01 07:17:40 +00:00
Chris Lattner
eb66921adb 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97438 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-01 06:59:22 +00:00
Mikhail Glushenkov
5d96eb8671 80-col violations/trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97427 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-28 22:54:30 +00:00
Chris Lattner
14df8dc680 eliminate GetInt1/2 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97426 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-28 22:38:43 +00:00
Chris Lattner
2a49d57d2d 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97425 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-28 22:37:22 +00:00
Chris Lattner
21221e357c enhance the new isel to handle the 'node already exists' 
case of MorphNodeTo directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97417 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-28 21:36:14 +00:00
Chris Lattner
25d5837889 simplify this code, return only ever has zero or one operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97408 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-28 18:53:13 +00:00
John McCall
165e96bd25 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97382 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-28 12:49:50 +00:00
John McCall
1e7ad3993d 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97381 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-28 09:55:58 +00:00
Erick Tryzelaar
8e130b1d0d Add support for global variables in an address space for llvm-c and ocaml. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97377 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-28 09:46:13 +00:00
Erick Tryzelaar
c59286bff1 Add indirect br support to llvm-c and ocaml. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97376 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-28 09:46:06 +00:00
Erick Tryzelaar
46c80e0c56 Add metadata functions to llvm-c and ocaml. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97375 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-28 09:45:59 +00:00
Chris Lattner
e0d2753f2b remove redundant instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97374 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-28 07:23:21 +00:00
Erick Tryzelaar
19f047f5f6 Add the new builder arthmetic instructions to llvm-c and ocaml. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97372 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-28 05:51:43 +00:00
Erick Tryzelaar
1940dd10dd Add the new union arthmetic instructions to llvm-c and ocaml. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97371 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-28 05:51:33 +00:00
Erick Tryzelaar
abbcc5ee6f Add generic binary op and cast builder functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97370 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-28 05:51:27 +00:00
Bob Wilson
b29d7d2542 Revert r97245 which seems to be causing performance problems. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97366 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-28 05:34:05 +00:00