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8250 Commits

Author SHA1 Message Date
Chris Lattner
ccd7bfb561 * There is no reason for SpillWeights to be an instance var 
* Do not put fixed registers into the unhandled set.  This means they will
  never find their way into the inactive, active, or handled sets, so we
  can simplify a bunch of code.

llvm-svn: 17945
 2004-11-18 06:01:45 +00:00
Chris Lattner
60c90d623f There is no need to check to see if j overflowed in this loop as we're only 
incrementing i.

llvm-svn: 17944
 2004-11-18 05:28:21 +00:00
Chris Lattner
2c16205a0d Moderate head scratching reveals that this conditional is not needed. If 
i->start == j->start, then certainly i->end > j->start.

llvm-svn: 17943
 2004-11-18 05:19:02 +00:00
Nate Begeman
7e254235e2 Clean up and fix cast codegen by removing cases that are handled elsewhere, 
and properly emitting signed short to unsigned int.  This fixes the last
regression vs. the CBE, MultiSource/Applications/hbd.

llvm-svn: 17942
 2004-11-18 04:56:53 +00:00
Reid Spencer
c1871a4eaa Dynamic Library abstraction. This makes the abstraction of a single dynamic 
library (shared library/shared object) whose symbols can be looked up
dynamically. Used for plug-ins.

llvm-svn: 17940
 2004-11-18 04:33:39 +00:00
Chris Lattner
e9ab36314d Fix a couple of bugs where we considered physregs past their range as possibly 
intersecting an interval.

llvm-svn: 17939
 2004-11-18 04:33:31 +00:00
Chris Lattner
c23cebb206 Fix typeo 
llvm-svn: 17938
 2004-11-18 04:31:10 +00:00
Chris Lattner
3a6991f745 Start using the iterators in the fixed_ intervals to avoid having to binary 
search physreg intervals every time we access it.  This takes another
half second off of linscan.

llvm-svn: 17937
 2004-11-18 04:13:02 +00:00
Chris Lattner
189acb3955 Take another .7 seconds off of linear scan time. 
llvm-svn: 17936
 2004-11-18 04:02:11 +00:00
Chris Lattner
a52650a18a Add a counter for the number of times linscan has to backtrack. Start using 
the iterator hints we have to speed up overlaps().  This speeds linscan up
by about .2s (out of 8.7) on 175.vpr for PPC.

llvm-svn: 17935
 2004-11-18 03:49:30 +00:00
Chris Lattner
2edc3cec62 Add ability to give hints to the overlaps routines. 
llvm-svn: 17934
 2004-11-18 03:47:34 +00:00
Chris Lattner
18ced80110 * Improve comments/documentation substantially 
* Eliminate the releaseMemory method, this is not an analysis
* Change the fixed, active, and inactive lists of intervals to maintain an
  iterator for the current position in the interval.  This allows us to do
  constant time increments of the iterator instead of having to do a binary
  search to find our liverange in our liveinterval all of the time, which
  substantially speeds up cases where LiveIntervals have many LiveRanges
  - which is very common for physical registers.  On targets with many
  physregs, this can make a noticable difference.

  With a release build of LLC for PPC, this halves the time in
  processInactiveIntervals and processActiveIntervals, from 1.5s to .75s.

  This also lays the ground for more to come.

llvm-svn: 17933
 2004-11-18 02:42:27 +00:00
Chris Lattner
3bf87c8f95 Add new advanceTo method 
llvm-svn: 17932
 2004-11-18 02:37:31 +00:00
Chris Lattner
77a4102d91 Fix a minor bug in expiredAt. endNumber() is the first number that is not valid. 
llvm-svn: 17931
 2004-11-18 01:34:44 +00:00
Chris Lattner
ddc898639f Rename some methods, use 'begin' instead of 'start', add new LiveInterval 
iterator/begin/end members.

llvm-svn: 17930
 2004-11-18 01:29:39 +00:00
Brian Gaeke
77ddfa2495 Allocate fewer registers and tighten up alignment restrictions. 
llvm-svn: 17929
 2004-11-18 00:25:20 +00:00
Brian Gaeke
cc4074987b Update to-do list. 
llvm-svn: 17927
 2004-11-17 22:33:55 +00:00
Brian Gaeke
0963d035c6 Update list of failing SingleSource Benchmarks 
llvm-svn: 17926
 2004-11-17 22:33:28 +00:00
Brian Gaeke
70a111317a We were (somehow) getting the wrong branch opcode for setcc float instrs. 
llvm-svn: 17925
 2004-11-17 22:06:56 +00:00
Alkis Evlogimenos
b9e38d3cc5 Make ReturnInst accept a value of type void as the return value. The 
ReturnInst constructed is the same as if NULL was passed instead of
the void value.

llvm-svn: 17923
 2004-11-17 21:02:25 +00:00
Reid Spencer
a98ccac6fc Fix some things for Mac OSX archives: 
* ensure trailing spaces are eliminated so they don't factor into the
  length of a member's name.
* make sure all the bytes of a name are written even if the name ends in
  multiple null characters (bug in OSX ar)
* make sure we provide the full member name when searching for symbols so
  the module name is not accidentally duplicated.

llvm-svn: 17918
 2004-11-17 18:28:29 +00:00
Reid Spencer
3e245bd4d5 Make sure we parse bytecode with a module identifier that reflects the full 
name of the module: "Archive.a(object.o)"

llvm-svn: 17917
 2004-11-17 18:25:21 +00:00
Chris Lattner
5a2ce1faab Generalize this code to turn any cast-to-first-element-of into a gep constexpr 
llvm-svn: 17914
 2004-11-17 17:59:35 +00:00
Chris Lattner
bd02c10b87 Simplify conditional and fix LICM/2004-11-17-UndefIndexCrash.ll 
by saying what we mean

llvm-svn: 17913
 2004-11-17 17:39:39 +00:00
Reid Spencer
b9fbea4c79 Adjust long file name writing to match BSD 4.4 and Mac OSX style archives. 
llvm-svn: 17910
 2004-11-17 16:14:21 +00:00
Reid Spencer
f59013e0fa Despite documentation to the contrary, Mac OSX and BSD 4.4 archive formats 
*do* include the length of the long file in the length of the member and
they are *not* null terminated.

llvm-svn: 17909
 2004-11-17 16:13:11 +00:00
Tanya Lattner
18118cf0c3 Added my own defMap. Only saving values that are not loop invariant. Fixed a couple of assertions that were triggered due to registers not being allocated. These both had to do with PHINodes. 
llvm-svn: 17907
 2004-11-16 21:31:37 +00:00
Chris Lattner
4725ecbbd6 Minor cleanup and speedup. This reduces link-time for 252.eon from 35.5s 
to 34.7s with a profile build.

llvm-svn: 17906
 2004-11-16 20:39:04 +00:00
Chris Lattner
7fdc458443 Make this function work with non-abstract types. 
llvm-svn: 17905
 2004-11-16 20:30:53 +00:00
Chris Lattner
8906663505 Don't increment a dead iterator 
llvm-svn: 17904
 2004-11-16 19:04:40 +00:00
Chris Lattner
a7eec14b04 Fix a major bug in the signed shr code, which apparently only breaks 134.perl! 
llvm-svn: 17902
 2004-11-16 18:40:52 +00:00
Reid Spencer
24a84793ba * Use low-level unix I/O interface since we're on Unix. 
* Don't use variable length arrays (replaced with alloca)

llvm-svn: 17901
 2004-11-16 17:14:08 +00:00
Chris Lattner
b40f8214ea Simplify the remapper by only needing one map, since the body of the functions 
being linked do not need to be remapped any longer.

llvm-svn: 17900
 2004-11-16 17:12:38 +00:00
Chris Lattner
92e712b00f Do not delete dead invoke instructions! 
llvm-svn: 17897
 2004-11-16 16:32:28 +00:00
Misha Brukman
3885f4ec6d Erase non-applicable Unix comment, this is Win32 
llvm-svn: 17896
 2004-11-16 07:35:32 +00:00
Brian Gaeke
c68a1fb6b9 Update list of failing benchmarks 
llvm-svn: 17895
 2004-11-16 07:32:58 +00:00
Brian Gaeke
effc63fac5 Correct the implicit-defs information for indirect and direct calls. 
You can't have implicit defs that overlap explicit defs, or implicit
defs that alias one another.

llvm-svn: 17894
 2004-11-16 07:32:09 +00:00
Chris Lattner
0493754bcf Take advantage of the fact that we are allowed to clobber the input module 
by splicing function bodies from the src module to the destination module.

This speeds up linking quite a bit, e.g. gccld time on 176.gcc from 26s -> 20s
when forming the .rbc file, with a profile build.  One of the really strange
but cool effects of this patch is that it speeds up the optimizers as well,
from 12s -> 10.7s, presumably because of better locality???

In any case, this is just a first step.  We can trivially get rid of the
LocalMap now and do other simplifications.

llvm-svn: 17893
 2004-11-16 07:31:51 +00:00
Reid Spencer
35a3e7eacc Fix typeo in comment. 
llvm-svn: 17892
 2004-11-16 07:05:16 +00:00
Reid Spencer
026d2183e7 Remove useless #include. 
Patch contributed by Jeff Cohen.

llvm-svn: 17891
 2004-11-16 07:00:23 +00:00
Reid Spencer
0d16952663 Simplify code. 
Patch contributed by Jeff Cohen.

llvm-svn: 17890
 2004-11-16 06:59:53 +00:00
Reid Spencer
cdc0b6d962 Standardize on 'class' instead of 'struct'. Gets rid of warnings in VC++ 
Patch contributed by Jeff Cohen.

llvm-svn: 17889
 2004-11-16 06:58:55 +00:00
Brian Gaeke
23b56332bc Give a better message for a common assertion failure. 
llvm-svn: 17887
 2004-11-16 06:52:35 +00:00
Reid Spencer
e64ca0563a Add a comment to some code that at first glance just doesn't look right. 
llvm-svn: 17886
 2004-11-16 06:50:36 +00:00
Reid Spencer
ddfafa643a Per code review:\ 
* Adjust indentation\
* Ensure memory do not leak if exceptions happen (std::auto_ptr use)

llvm-svn: 17885
 2004-11-16 06:47:41 +00:00
Reid Spencer
2d66bbb7c3 Per code review:\ 
* Make the numVbrBytes function more efficient and better documented \
* Fix a bug in name truncation \
* Add comments before functions \
* Get rid of functions that are now inlined into the header \
* Do not have Archive doing symbol table printing \
* Put assert comments into the assert so they print out \
* Make sure foreign symbol tables are written

llvm-svn: 17884
 2004-11-16 06:47:30 +00:00
Reid Spencer
b6d946d19d Per code review:\ 
* Make sure we write out the foreign symbol table if we read one \
* Make the padding calculation more efficiently and avoid Solaris warnings

llvm-svn: 17883
 2004-11-16 06:47:19 +00:00
Reid Spencer
e39cdbd7f7 Per code review:\ 
* Make sure all members are initialized upon construction

llvm-svn: 17882
 2004-11-16 06:47:07 +00:00
Chris Lattner
be4c91f75f The second arg may be clobbered by this function 
llvm-svn: 17880
 2004-11-16 06:41:36 +00:00
Reid Spencer
2fe884dad8 Per code review:\ 
* Get rid of memory leaks on exception \
* Provide better comments of how the memory handling works

llvm-svn: 17876
 2004-11-16 06:41:05 +00:00