Joel Dice
1c3504b62a
fix various stack bugs
2009-01-29 18:36:19 -07:00
Joel Dice
565ece136b
begin refactoring compiler.cpp to treat each word of a multiword value seperately
2009-01-25 15:03:38 -07:00
Joel Dice
034444db57
fix a couple of bugs handling multi-word values
2009-01-12 09:26:43 -07:00
Joel Dice
582e975a8a
remove temporary debug code
2009-01-11 16:46:36 -07:00
Joel Dice
85ac9b9c71
revert overflow code in sitesToString since we now prune dead buddies from values
2009-01-11 16:46:22 -07:00
Joel Dice
05bd86e2ed
use upper 32 bits of mask in pickRegisterTarget when picking register for high word; set Target::Impossible to 5 since 4 is a valid cost
2009-01-11 16:42:41 -07:00
Joel Dice
04bc58fd95
reorder code in MemorySite::release so we can use low->size before it is overwritten
2009-01-11 16:24:25 -07:00
Joel Dice
5a76277b84
remove dead buddies from values so they don't accumulate without bound; when resolving sites, avoid picking those which belong to other values; various bugfixes
2009-01-11 15:53:51 -07:00
Joel Dice
e3976e66d3
avoid using all registers when marshalling sites, since we need at least one register free for memory-to-memory moves; various bugfixes
2009-01-11 11:48:02 -07:00
Joel Dice
8459489212
avoid overflow in sitesToString
2009-01-04 15:58:05 -07:00
Joel Dice
9495d03dc6
explicitly load jump target in tableswitch to avoid retaining stale memory sites
2009-01-04 15:56:47 -07:00
Joel Dice
c56f37197c
marshal values at branches to avoid duplication of effort at junctions
2009-01-04 14:52:46 -07:00
Joel Dice
f4689093ee
try harder to find an acceptable source site in resolveSourceJunctionSites
2009-01-04 13:35:09 -07:00
Joel Dice
ce1e161f52
allocate larger buffer for sitesToString
2009-01-04 12:38:31 -07:00
Joel Dice
095e6d7bc3
prefer unowned resources in resourceCost
2009-01-04 12:34:38 -07:00
Joel Dice
d76b4121ae
fix 64-bit constant case in addCR and subtractCR
2009-01-04 12:32:11 -07:00
Joel Dice
ded2ffe437
more compile.cpp refactoring
2009-01-03 18:17:51 -07:00
Joel Dice
ae24a6c18e
continue refactoring compiler.cpp to simplify register and frame resource allocation
2009-01-03 14:34:45 -07:00
Joel Dice
7b546936d6
snapshot
2009-01-02 17:44:47 -07:00
Joel Dice
c678fb30a4
snapshot
2008-12-24 13:35:43 -07:00
Joel Dice
f96ee3ea73
handle p->value->reads == 0 case in visit
2008-12-22 18:25:00 -07:00
Joel Dice
897586aa76
clobber overlapping locals in storeLocal; move fallback code in trySteal to increase its applicability
2008-12-22 17:55:29 -07:00
Joel Dice
ac37941fa5
fix build error in previous commit
2008-12-21 18:14:24 -07:00
Joel Dice
c9bec0ce96
only steal sites recursively when all else fails in trySteal
2008-12-21 18:14:20 -07:00
Joel Dice
c78e76c747
temporarily reacquire source in releaseRegister
...
This avoids a SEGV when freezing the register.
2008-12-21 14:48:26 -07:00
Joel Dice
055ec4dd9f
various fixes and cleanups concerning 64-bit values on 32-bit systems
2008-12-21 14:41:56 -07:00
Joel Dice
b23f7374e9
don't steal sites in pickJunctionSite
2008-12-20 17:45:52 -07:00
Joel Dice
b9b7ae4003
avoid clobbering first operand in CombineEvent.compile
2008-12-20 16:05:01 -07:00
Joel Dice
cf4e8e7ec2
various fixes for marshalling values among registers and frame sites
2008-12-20 14:55:45 -07:00
Joel Dice
75b3bf98ab
pick only unfrozen frame sites in save
2008-12-20 11:13:58 -07:00
Joel Dice
a40ae85588
clear sites from dead value in removeBuddy
2008-12-15 18:21:01 -07:00
Joel Dice
8819d01522
only set Context::forfeitedSite if value is live
2008-12-15 17:42:32 -07:00
Joel Dice
39358e6652
update junction read based on liveness of local value on first visit to junction, not stub read value
2008-12-15 07:35:19 -07:00
Joel Dice
7f4bd51464
don't use trySteal when moving sites between buddies
2008-12-13 13:54:26 -07:00
Joel Dice
4717e94fa3
remove value buddies after setting sites to junction sites, not after populating junction sites
...
This mirrors how snapshots are captured and restored for branch events.
Also, switch back to resolving junction sites before capturing fork
snapshots so we capture the true state of each value immediately before
the branch.
2008-12-13 12:59:02 -07:00
Joel Dice
d50febe088
various control-flow related bugfixes
2008-12-11 18:09:36 -07:00
Joel Dice
8b2a6f85fc
remove divideCR and remainderCR
...
This forces the compiler to explicitly move the constant operand into
a register, avoiding the possibility that AX or DX might be unavailable
when the assembler needs them.
2008-12-11 18:08:16 -07:00
Joel Dice
264779ed2a
copy site if necessary to avoid chaining to another site in resolveJunctionSite
2008-11-25 19:23:47 -07:00
Joel Dice
f9145528c8
do constant-to-memory movq in one instruction on amd64 when possible
2008-11-25 19:22:21 -07:00
Joel Dice
61ecb56e21
Merge branch 'master' of oss:/var/local/git/avian into powerpc
2008-11-25 16:19:21 -07:00
Joel Dice
fdb9c05ac6
avoid uninitialized value warnings from valgrind when DebugFrameMaps is true
2008-11-25 16:01:30 -07:00
Joel Dice
58a9718d82
clean stack sites more aggressively after function calls to avoid GC bugs
2008-11-25 16:00:40 -07:00
Joel Dice
eea2225176
save locals to memory before executing any instruction which might trigger an exception if that instruction lies within an exception handler
2008-11-25 10:34:48 -07:00
Joel Dice
a3c8a0460d
silence GCC 4.3.2 warning in Java_java_lang_Runtime_exec
2008-11-24 17:03:00 -07:00
Joel Dice
207f093464
never trigger a GC due to an immortal allocation
2008-11-23 11:48:39 -07:00
Joel Dice
fb9b2bf173
avoid creating garbage when iterating over hashmaps
2008-11-22 16:38:41 -07:00
Joel Dice
4392b04fd0
avoid creating unecessary garbage in treeInsertNode and friends
2008-11-22 16:25:35 -07:00
Joel Dice
fccf906349
add minimal java.net.Socket implementation to support Socket.setTcpNoDelay
2008-11-22 15:32:53 -07:00
Joel Dice
6162dfafbb
increase heap pool size and fixed footprint threshold constants based on performance profiling and experimentation (second try)
2008-11-22 14:48:10 -07:00
Joel Dice
8a7852172e
increase heap pool size and fixed footprint threshold constants based on performance profiling and experimentation
2008-11-22 14:47:18 -07:00
