Commit Graph

10033 Commits

Author SHA1 Message Date
Chris Lattner
62482e5649 Rename DSGraph::ScalarMapTy -> DSScalarMap
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11001 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-28 09:15:42 +00:00
Chris Lattner
28da03b0fe Fix a bug
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11000 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-28 03:31:34 +00:00
Chris Lattner
a3fd88d01f Eliminate the call to removeTriviallyDeadNodes from updateFromGlobals graph,
moving it to the start of removeDeadNodes.  This speeds up DSA by 2s on perlbmk
from 41s


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10999 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-28 03:24:41 +00:00
Chris Lattner
6d8f3dcd75 In the TD pass, iterate over globals directly instead of through the whole scalar
map.  This saves 5s in the TD pass, from 22->17s on perlbmk


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10998 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-28 03:12:48 +00:00
Chris Lattner
34741cf0dd In the TD pass, don't iterate over the scalar map to find the globals, iterate over
the globals directly.  This doesn't save any substantial time, however, because the
globals graph only contains globals!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10997 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-28 03:07:30 +00:00
Chris Lattner
bdce7b7844 In updateFromGlobalsGraph, instead of iterating over all of the scalars in the
function to find the globals, iterate over all of the globals directly.  This
speeds the function up from 14s to 6.3s on perlbmk, reducing DSA time from
53->46s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10996 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-28 03:03:06 +00:00
Chris Lattner
14c67ccf02 Keep track of all of the globals inserted into the scalar map
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10995 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-28 03:01:22 +00:00
Chris Lattner
18348fe201 Pull the ScalarMap out into something that is more structured than what we had
before.  This allows us to have a place to implement optimizations in a
structured way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10994 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-28 02:42:12 +00:00
Chris Lattner
a88a55cf10 Minor tweaks, eliminate useless integer pruning optimziation, turn on
timers by default


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10993 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-28 02:41:32 +00:00
Chris Lattner
239644dc3b Further reduce the number of nodes cloned with getClonedNH, using merge instead.
This reduces the number of nodes allocated, then immediately merged and DNE'd
from 2193852 to 1298049.  unfortunately this only speeds DSA up by ~1.5s (of
53s), because it's spending most of its time waddling through the scalar map :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10992 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-28 02:11:49 +00:00
Chris Lattner
00948c05b2 Add a timer, fix a minor bug.
Also, use RC::merge when possible, reducing the number of nodes allocated, then immediately merged away from 2985444 to 2193852 on perlbmk.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10991 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-28 02:05:05 +00:00
Chris Lattner
64507e39da Another bugfix, disable "spurious" output.
You gotta love spurious


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10990 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-28 01:19:52 +00:00
Chris Lattner
352e31f572 fix bug in previous checkin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10989 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-27 22:54:56 +00:00
Chris Lattner
0b14487591 * Add a new commandline argument to control the "global roots hack". Default
it to be off.  If it looks like it's completely unnecessary after testing, I
  will remove it completely (which is the hope).
* Callers of the DSNode "copy ctor" can not choose to not copy links.
* Make node collapsing not create a garbage node in some cases, avoiding a
  memory allocation, and a subsequent DNE.
* When merging types, allow two functions of different types to be merged
  without collapsing.
* Use DSNodeHandle::isNull more often instead of DSNodeHandle::getNode() == 0,
  as it is much more efficient.
*** Implement the new, more efficient reachability cloner class
    In addition to only cloning nodes that are reachable from interesting
    roots, this also fixes the huge inefficiency we had where we cloned lots
    of nodes, only to merge them away immediately after they were cloned.
    Now we only actually allocate a node if there isn't one to merge it into.
* Eliminate the now-obsolete cloneReachable* and clonePartiallyInto methods
* Rewrite updateFromGlobalsGraph to use the reachability cloner
* Rewrite mergeInGraph to use the reachability cloner
* Disable the scalar map scanning code in removeTriviallyDeadNodes.  In large
  SCC's, this is extremely expensive.  We need a better data structure for the
  scalar map, because we really want to scan the unique node handles, not ALL
  of the scalars.
* Remove the incorrect SANER_CODE_FOR_CHECKING_IF_ALL_REFERRERS_ARE_FROM_SCALARMAP code.
* Move the code for eliminating integer nodes from the trivially dead
  eliminator to the dead node eliminator.
* removeDeadNodes no longer uses removeTriviallyDeadNodes, as it contains a
  superset of the node removal power.
* Only futz around with the globals graph in removeDeadNodes if it is modified


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10987 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-27 22:03:40 +00:00
Chris Lattner
f325e3981e Rewrite to use the reachability cloner interface. Also, make this much more
efficient in the case where a function calls into the same graph multiple times
(ie, it either contains multiple calls to the same function, or multiple calls
to functions in the same SCC graph)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10986 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-27 21:53:14 +00:00
Chris Lattner
02da032b03 minor cleanups
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10985 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-27 21:51:19 +00:00
Chris Lattner
825a02ae36 Get clone flags right, so we don't build InlinedGlobals only to clear them
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10984 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-27 21:50:41 +00:00
Chris Lattner
660f1e90ec Minor tweaks
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10983 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-27 21:49:42 +00:00
Chris Lattner
7a31285c3f Add comments, allow DSNode "copy ctor" to ignore outgoing links, add more
structured access to the globals list, add a couple helper methods.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10982 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-27 21:49:25 +00:00
Chris Lattner
5f549af582 * cloneReachable* and clonePartiallyInto are not obsolete
* Make AssertNodeInGraph not be HORRIBLY time consuming
* Eliminate the dead mergeInGlobalsGraph method
*** Add the definition for the new ReachabilityCloner class


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10981 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-27 21:48:35 +00:00
Chris Lattner
991a75eab9 Start counting projects
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10980 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-27 21:46:23 +00:00
John Criswell
6f5592ae2c Fixed PR#197. The libcrtend library is removed from the library linking list
when creating native executables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10979 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-26 23:51:10 +00:00
John Criswell
f9c78655be Clarified the extension to shared library objects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10978 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-26 21:26:54 +00:00
John Criswell
6b15340ba5 Updating release notes for PR214.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10977 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-26 21:03:54 +00:00
John Criswell
7f7d16b62f Fixes for PR214. Use the SHLIBEXT variable instead of hardcoding .so into
every file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10976 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-26 20:59:41 +00:00
Brian Gaeke
48e9f26df5 Fix a couple of places I noticed where "X86" was hard-coded.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10974 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-24 09:23:46 +00:00
Alkis Evlogimenos
79b0c3f0b9 Fix failing test cases with joined live intervals. It turns out that
when joining we need to check if we overlap with the second interval
or any of its aliases.

Also make joining intervals the default.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10973 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-23 13:37:51 +00:00
Brian Gaeke
954e3164be Add the JITInfo object, accessor & initializer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10972 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-23 06:39:30 +00:00
Brian Gaeke
7b0cd6d6cb Add CodeEmitter and JITInfo stubs. Dump the old
PowerPCTargetMachine::addPassesToJITCompile() method, in favor of the
TargetJITInfo interface.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10971 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-23 06:35:43 +00:00
Chris Lattner
091f776081 Initial support for implementing clonePartiallyInto in terms of cloneReachableSubgraph, though this support is currently disabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10970 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-23 01:44:53 +00:00
Chris Lattner
078c513e87 Add new flag, other minor modifications
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10969 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-23 01:42:32 +00:00
Chris Lattner
1db1c93b30 Fix grammar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10968 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-23 01:42:16 +00:00
Chris Lattner
90fb19ed2c Fix a problem brian ran into with the bytecode reader asserting. It turns
out that the problem was actually the writer writing out a 'null' value
because it didn't normalize it.  This fixes:
test/Regression/Assembler/2004-01-22-FloatNormalization.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10967 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-23 00:55:21 +00:00
Chris Lattner
6e1f3ec6cd New testcase for problem brian ran into
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10966 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-23 00:54:26 +00:00
Alkis Evlogimenos
e88280a422 Add option to join live intervals. Two intervals are joined if there
is a move between two registers, at least one of the registers is
virtual and the two live intervals do not overlap.

This results in about 40% reduction in intervals, 30% decrease in the
register allocators running time and a 20% increase in peephole
optimizations (mainly move eliminations).

The option can be enabled by passing -join-liveintervals where
appropriate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10965 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 23:08:45 +00:00
Brian Gaeke
8abff7945a Move bytecode_libdir def'n to Makefile.config.in from Makefile.rules, so it
lives near the other installation dirs (like libdir, bindir, etc.).

Move the rule for making bytecode_libdir out of the ifdef LIBRARYNAME...endif.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10964 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 22:53:48 +00:00
Brian Gaeke
027b746853 Add autoconf check for the version of etags we have detected, and select
appropriate "force C++" command-line option.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10963 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 21:55:15 +00:00
Brian Gaeke
afa3fbf750 Regenerated using autoconf-2.57.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10962 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 21:55:02 +00:00
Brian Gaeke
e0cec5d75a Get autoconf'd ETAGSFLAGS value from configure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10961 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 21:55:01 +00:00
Brian Gaeke
6fdaf4a219 Move support for building tags database from Makefile.rules to Makefile, because
it's only used in the top-level directory.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10960 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 21:54:51 +00:00
Alkis Evlogimenos
84dc5fb6ba Remove unneeded check. An interval in active, by definition overlaps
with the current one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10959 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 20:07:18 +00:00
Alkis Evlogimenos
ce50115006 Improve debugging output. Remove unneeded virtReg->0 mapping when
virtReg lives on the stack. Now a virtual register has an entry in the
virtual->physical map or the virtual->stack slot map but never in
both.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10958 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 19:24:43 +00:00
Alkis Evlogimenos
1075ecd32f Revert previous change. The code was correct...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10957 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 19:17:52 +00:00
Alkis Evlogimenos
e1a210777d Fix incorrect negatives in LiveIntervals::Interval::liveAt().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10956 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 18:33:50 +00:00
Chris Lattner
2f561384fb Eliminated the CompletedNodes argument to the cloneReachable* methods. This
map was only used to implement a marginal GlobalsGraph optimization, and it
actually slows the analysis down (due to the overhead of keeping it), so just
eliminate it entirely.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10955 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 16:56:13 +00:00
Chris Lattner
93ddd7ea10 Ok, I'm tired of pulling out all my timers to check stuff in, just do it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10954 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 16:36:28 +00:00
Chris Lattner
5254a8dda8 Bug fix: X.mergeWith(Y) was not updating Y if Y was a null node handle!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10953 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 16:31:08 +00:00
Chris Lattner
9a37f2d96a It doesn't make sense for one side to be const, but not the other.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10952 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 16:08:51 +00:00
Chris Lattner
4c6cb7a2b1 Start implementing DSGraph::clonePartiallyInto and implement mergeInGraph
in terms of it.

Though clonePartiallyInto is not cloning partial graphs yet, this change
dramatically speeds up inlining of graphs with many scalars.  For example,
this change speeds up the BU pass on 253.perlbmk from 69s to 36s, because
it avoids iteration over the scalar map, which can get pretty large.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10951 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 15:30:58 +00:00
Chris Lattner
9e9848d037 Remove const qualifier (all Value*'s are nonconst in DSA, so it's not clear
why this one was)

Add new method proto


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10950 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 15:26:52 +00:00