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5256 Commits

Author SHA1 Message Date
Reid Spencer
8c5c7c8453 Change casts from old style to new style. This helps document the details 
better, gives the compiler a chance to validate the cast and reduces warnings
if the user turns on -Wold-style-cast option.

llvm-svn: 41033
 2007-08-12 08:12:35 +00:00
Evan Cheng
8968affb6d Code to maintain kill information during register coalescing. 
llvm-svn: 41016
 2007-08-11 00:59:19 +00:00
Christopher Lamb
e0c9bd8d2e Move isSubRegOf into MRegisterInfo. Fix a missed move elimination in LowerSubregs and add more debugging output there. 
llvm-svn: 41005
 2007-08-10 21:11:55 +00:00
Devang Patel
fa7277dd34 Do not overuse std::string. Pass around char * directly. 
llvm-svn: 41001
 2007-08-10 18:29:32 +00:00
Devang Patel
d412a2a0ed Add utility to clone loops. 
llvm-svn: 40997
 2007-08-10 17:59:47 +00:00
Devang Patel
80f51489aa Add #ifndef guard. 
llvm-svn: 40991
 2007-08-10 15:58:23 +00:00
Chris Lattner
15b13dc5f9 add #ifndef guards 
llvm-svn: 40990
 2007-08-10 15:53:08 +00:00
Chris Lattner
de900e3b6c add Value::getNameStart/getNameLen() accessors. 
llvm-svn: 40989
 2007-08-10 15:34:35 +00:00
Rafael Espindola
b20b9e985a propagate struct size and alignment of byval arguments to the DAG 
llvm-svn: 40986
 2007-08-10 14:44:42 +00:00
Chris Lattner
f570f023cf memcpy with zero length is hugely expensive, so avoid it. This speeds up coallescing from 1.17s to 0.88s on siod. 
llvm-svn: 40984
 2007-08-10 07:02:50 +00:00
Chris Lattner
8995eae095 small speedup in the case where a smallvector is default ctor'd from 
an empty vector.  This speeds up llc slightly.

llvm-svn: 40983
 2007-08-10 06:54:38 +00:00
Bill Wendling
55c3dc2409 Adding SSSE3 intrinsics. 
llvm-svn: 40982
 2007-08-10 06:22:27 +00:00
Chris Lattner
bbe3b1dbee avoid copying strings. 
llvm-svn: 40980
 2007-08-10 06:17:04 +00:00
Dale Johannesen
a1340d5916 Update per review comments. 
llvm-svn: 40965
 2007-08-09 17:27:48 +00:00
Owen Anderson
3eba1e8f5c Make NonLocal and None const in the right way. :-) 
llvm-svn: 40961
 2007-08-09 04:42:44 +00:00
Dale Johannesen
79551baaad long double 9 of N. This finishes up the X86-32 bits 
(constants are still not handled).  Adds ConvertActions
to control fp-to-fp conversions (these are currently
defaulted for all other targets, so no changes there).

llvm-svn: 40958
 2007-08-09 01:04:01 +00:00
Owen Anderson
24f6b332cb Add one more comment. 
llvm-svn: 40949
 2007-08-08 21:54:33 +00:00
Owen Anderson
f4aec9115f Cleanup and comment-ize the memdep header. 
llvm-svn: 40948
 2007-08-08 21:53:20 +00:00
Owen Anderson
f988c3ee5c Change the None and NonLocal markers in memdep to be const. 
llvm-svn: 40946
 2007-08-08 21:39:39 +00:00
Reid Spencer
6f88014eeb Make it clear that getSTDIN returns null when stdin is empty. 
llvm-svn: 40940
 2007-08-08 20:02:20 +00:00
Evan Cheng
5227e36428 Adding kill info to val#. 
llvm-svn: 40925
 2007-08-08 07:03:29 +00:00
Evan Cheng
02e7fbd7c8 Clean up and bug fix. 
llvm-svn: 40921
 2007-08-08 05:56:18 +00:00
Chris Lattner
65d638a918 reimplement dfs number computation to be significantly faster. This speeds up 
natural loop canonicalization (which does many cfg xforms) by 4.3x, for 
example.  This also fixes a bug in postdom dfnumber computation.

llvm-svn: 40920
 2007-08-08 05:51:24 +00:00
Evan Cheng
12d72cc1a0 - Each val# can have multiple kills. 
- Fix some minor bugs related to special markers on val# def. ~0U means
  undefined, ~1U means dead val#.

llvm-svn: 40916
 2007-08-08 03:00:28 +00:00
Evan Cheng
0182b495fd - LiveInterval value#'s now have 3 components: def instruction #, 
kill instruction #, and source register number (iff the value# is defined by a
copy).
- Now def instruction # is set for every value#, not just for copy defined ones.
- Update some outdated code related inactive live ranges.
- Kill info not yet set. That's next patch.

llvm-svn: 40913
 2007-08-07 23:49:57 +00:00
Devang Patel
8289b6e663 Fix comment. 
llvm-svn: 40911
 2007-08-07 23:16:03 +00:00
Owen Anderson
d0c7aad800 Get rid of unnecessary #include. 
llvm-svn: 40885
 2007-08-07 00:38:16 +00:00
Owen Anderson
22d94da65b Clean up a bunch of caching stuff in memdep. This reduces the time to run GVN 
on 403.gcc from ~15s to ~10s.

llvm-svn: 40884
 2007-08-07 00:33:45 +00:00
Devang Patel
228dc09ff6 Begin loop index split pass. 
llvm-svn: 40883
 2007-08-07 00:25:56 +00:00
Chris Lattner
fb1e3a7d2c remove #if 0 code. 
llvm-svn: 40880
 2007-08-06 22:03:19 +00:00
Chris Lattner
cce6cf78e4 remove #if 0 code. 
llvm-svn: 40879
 2007-08-06 22:01:53 +00:00
Chandler Carruth
e717210757 This fixes resizing issues with BitVectors. It ensures that the BitWord type and type size is always used, and ensures completely correct clearing of unused high bits, and setting of bits when resizing. It should resolve PR1563. 
llvm-svn: 40871
 2007-08-06 20:52:17 +00:00
Reid Spencer
5b204d32f8 @verbatim needs to be on a line by itself. 
llvm-svn: 40865
 2007-08-06 17:10:29 +00:00
Christopher Lamb
8875f43912 Implement review feedback. No functionality change. 
llvm-svn: 40863
 2007-08-06 16:33:56 +00:00
Chris Lattner
99df553268 Various random cleanups, add two accessors to DomTreeNode: getDFSNumIn/getDFSNumOut 
llvm-svn: 40856
 2007-08-06 06:15:43 +00:00
Reid Spencer
3e54e72ef1 Fix minor doxygen nits. 
llvm-svn: 40854
 2007-08-05 20:06:04 +00:00
Reid Spencer
2a23af68c8 Document a missing parameter. 
llvm-svn: 40852
 2007-08-05 19:36:39 +00:00
Chris Lattner
ab61b6f01e Fix a bug in DenseMap::clear, where we never reset a tombstone 
to EmptyKey.

llvm-svn: 40839
 2007-08-05 08:43:36 +00:00
Chris Lattner
10db9656ba When clearing a SmallPtrSet, if the set had a huge capacity, but the 
contents of the set were small, deallocate and shrink the set.  This
avoids having us to memset as much data, significantly speeding up
some pathological cases.  For example, this speeds up the verifier
from 0.3899s to 0.0763 (5.1x) on the testcase from PR1432 in a 
release build.

llvm-svn: 40837
 2007-08-05 07:32:14 +00:00
Chris Lattner
a5a692b9bb Switch the internal "Info" map from an std::map to a DenseMap. This 
speeds up idom by about 45% and postidom by about 33%.

Some extra precautions must be taken not to invalidate densemap iterators.

llvm-svn: 40827
 2007-08-05 00:02:00 +00:00
Chris Lattner
5912537997 switch the DomTreeNodes and IDoms maps in idom/postidom to a 
DenseMap instead of an std::map.  This speeds up postdomtree
by about 25% and domtree by about 23%.  It also speeds up clients,
for example, domfrontier by 11%, mem2reg by 4% and ADCE by 6%.

llvm-svn: 40826
 2007-08-04 23:48:07 +00:00
Chandler Carruth
00e56b0e81 This is the patch to provide clean intrinsic function overloading support in LLVM. It cleans up the intrinsic definitions and generally smooths the process for more complicated intrinsic writing. It will be used by the upcoming atomic intrinsics as well as vector and float intrinsics in the future. 
This also changes the syntax for llvm.bswap, llvm.part.set, llvm.part.select, and llvm.ct* intrinsics. They are automatically upgraded by both the LLVM ASM reader and the bitcode reader. The test cases have been updated, with special tests added to ensure the automatic upgrading is supported.

llvm-svn: 40807
 2007-08-04 01:51:18 +00:00
Dale Johannesen
976a1cf6cf long double patch 3 of N. Add to MVT. 
llvm-svn: 40793
 2007-08-03 20:51:37 +00:00
Dale Johannesen
dda00eb44d Long double, part 1 of N. Support in IR. 
llvm-svn: 40774
 2007-08-03 01:03:46 +00:00
Anders Carlsson
122059b2e9 Fix bug spotted by Chris. 
llvm-svn: 40725
 2007-08-02 06:05:19 +00:00
Anders Carlsson
89ea07e724 Add extend and extOrTrunc methods that do sign or zero extension depending on whether the integer is signed or not 
llvm-svn: 40724
 2007-08-02 06:00:13 +00:00
Evan Cheng
a06b9cf09f Do not emit copies for physical register output if it's not used. 
llvm-svn: 40722
 2007-08-02 05:29:38 +00:00
Evan Cheng
14bd520741 Instead of adding copyfromreg's to handle physical definitions. Now isel can 
simply specify them as results and let scheduledag handle them. That
is, instead of
SDOperand Flag = DAG.getTargetNode(Opc, MVT::i32, MVT::Flag, ...)
SDOperand Result = DAG.getCopyFromReg(Chain, X86::EAX, MVT::i32, Flag)

Just write:
SDOperand Result = DAG.getTargetNode(Opc, MVT::i32, MVT::i32, ...)

And let scheduledag emit the move from X86::EAX to a virtual register.

llvm-svn: 40710
 2007-08-02 00:28:15 +00:00
Evan Cheng
8f126e59f5 Added TargetInstrDescriptor::numDefs - num of results. 
llvm-svn: 40709
 2007-08-02 00:20:17 +00:00
Owen Anderson
7028dfaf9d Make non-local memdep not be recursive, and fix a bug on 403.gcc that this exposed. 
llvm-svn: 40692
 2007-08-01 22:01:54 +00:00