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384 Commits

Author SHA1 Message Date
Josh warner
9910e310cb fixed register reserve logic in pickTarget 2009-08-10 13:42:37 -06:00
Josh warner
1d3ef1fc43 Merge branch 'master' of git://oss.readytalk.com/avian, fixed problems that occured in broader testing 
Conflicts:
	src/compile.cpp
	src/compiler.cpp
	src/powerpc.cpp
	src/x86.S
	src/x86.cpp
 2009-08-10 13:20:23 -06:00
Joel Dice
54bb64cfb2 freeze sites for dead values in resolveOriginalSites 
Previously, we simply removed the element from the sites array, but
this led to problems when the junction sites are shared among multiple
junctions such that the value at a given index is live at one junction
and dead at another.
 2009-08-10 07:51:19 -06:00
Josh warner
53c0656ee7 added floating point support, split plan method 2009-08-06 10:14:31 -06:00
Joel Dice
63fa0668ff avoid poor performance due to deeply-nested branches in MultiRead::intersect 2009-08-04 18:28:34 -06:00
Joel Dice
d12b441aa1 restore state from subroutine after jsr to avoid later confusion determining basic block boundaries 2009-07-20 08:26:01 -06:00
Joel Dice
e72ff8db0b Merge branch 'master' into gnu 
Conflicts:

	src/compile.cpp
 2009-07-11 12:11:59 -06:00
Joel Dice
c22b4b4e79 various subroutine handling bugfixes 2009-07-08 08:18:40 -06:00
Joel Dice
562e1e10a8 fix regression in MyCompiler::startLogicalIp 2009-06-30 17:33:54 -06:00
Joel Dice
b308354a3a handle subroutines properly when generating frame maps (initial sketch) 2009-06-26 15:36:04 -06:00
Joel Dice
a21f951e29 consider an instruction reachable if it has no predecessors (i.e. it's the first instruction 2009-06-12 09:45:29 -06:00
Joel Dice
b4dea1f71c fix printf warnings in compiler.cpp 2009-05-28 19:12:26 -06:00
Joel Dice
2608a2ee43 progress towards powerpc continuation and tail call support 2009-05-26 19:02:39 -06:00
Joel Dice
31eb75a736 support tail calls and continuations as build options 2009-05-25 23:27:10 -06:00
Joel Dice
18ec68c7b7 fix word order when pushing 64-bit values as arguments to helper thunks in appendCombine 2009-05-24 00:31:53 -06:00
Joel Dice
57cec2d068 various bugfixes 2009-05-14 20:08:01 -06:00
Joel Dice
eb3bd25aa1 code cleanup and build fixes 2009-05-04 19:04:17 -06:00
Joel Dice
0cd4eb2655 early sketch of continuation support 2009-05-03 14:57:11 -06:00
Joel Dice
fd99691b00 fix CallEvent::popIndex calculation 2009-04-26 21:59:22 -06:00
Joel Dice
50529969f9 fix code to visit GC roots on stack to be compatible with tail calls; avoid generating unreachable jumps 2009-04-26 19:53:42 -06:00
Joel Dice
f80fb9b536 refine code for picking target sites to avoid unecessary moves 2009-04-26 12:19:16 -06:00
Joel Dice
64b529c915 avoid generating unreachable code after tail calls 2009-04-25 20:54:36 -06:00
Joel Dice
630fde86f7 freeze registers in CallEvent::compile to ensure they are not used as temporaries by the assmebler 2009-04-25 20:07:47 -06:00
Joel Dice
0245a94ab8 generate code in ReturnEvent if and only if the event is preceded by at least one non-tail-call 2009-04-25 19:51:33 -06:00
Joel Dice
de84afe2fe adjust stack if necessary after non-tail-call in case where callee pops arguments 2009-04-25 11:47:41 -06:00
Joel Dice
3113ae74eb various bugfixes 2009-04-22 01:39:25 +00:00
Joel Dice
717f359666 implement "callee pops arguments" calling convention and refactor tail call code accordingly 2009-04-19 16:36:11 -06:00
Joel Dice
dba72409aa move use of SingleRead::successor; fix build errors 
We now use SingleRead::successor in pickTarget, where we use it to
determine the prefered target site for the successor without requiring
the target to conform to that preference.  The previous code made the
preference a hard requirement, which is not desirable or even possible
in general.
 2009-04-07 18:55:43 -06:00
Joel Dice
35d1c6e068 add SingleRead::successor; fix build errors 
The SingleRead::successor field is used (when non-null) to further
constrain the SiteMask in SingleRead::intersect based on reads of
successor values (as in the cases of moves and condensed-addressing
combine and translate instructions).
 2009-04-06 18:34:12 -06:00
Joel Dice
fea92ed995 more work on tail recursion 
We now create a unique thunk for each vtable position so as to avoid
relying on using the return address to determine what method is to be
compiled and invoked, since we will not have the correct return address
in the case of a tail call.  This required refactoring how executable
memory is allocated in order to keep AOT compilation working.  Also, we
must always use the same register to hold the class pointer when
compiling virtual calls, and ensure that the pointer stays there until
the call instruction is executed so we know where to find it in the
thunk.
 2009-04-05 15:42:10 -06:00
Joel Dice
5e740170f2 initial sketch of tail call optimization (non-virtual calls only, so far) 2009-03-31 14:15:08 -06:00
Joel Dice
c9400316fd try harder to find a suitable stack frame site in pickTarget when there are no free registers left 2009-03-16 20:03:59 -06:00
Joel Dice
f5c79355f2 set StealRegisterReserveCount to 2 to avoid running out of registers in when shuffling values around on the stack 2009-03-16 18:00:51 -06:00
Joel Dice
d1018bf078 update copyright years 2009-03-15 12:02:36 -06:00
Joel Dice
073b829c79 avoid running out of eligable source registers for writing a single byte to memory on x86 2009-03-14 16:47:26 -06:00
Joel Dice
8d9409112c reuse source site as destination site if appropriate in getTarget 2009-03-14 14:17:32 -06:00
Joel Dice
ee2d105f6c freeze move operand sites prior to calling the assembler so the assembler won't steal them 2009-03-13 20:55:41 -06:00
Joel Dice
4c27755a53 fix endianness issue storing and loading longs 2009-03-11 21:07:30 -06:00
Joel Dice
49cd2dd9bf fix powerpc bootimage build (second try) 2009-03-10 19:08:16 -06:00
Joel Dice
c11203b401 pass srcSelectSize instead of srcSize to Architecture::plan in appendMove 2009-03-09 12:31:41 -06:00
Joel Dice
e1395f300a fix warnings for optimized build 2009-03-07 17:52:18 -07:00
Joel Dice
14c6deb710 do two passes in MyCompiler::initLocalsFromLogicalIp in order to properly link multiword values together 2009-03-07 17:39:55 -07:00
Joel Dice
7add34944b protect source site from being used as a temporary for move operations 2009-03-07 16:32:05 -07:00
Joel Dice
fd7bef7db3 only accept sites conforming to specified SiteMask in getTarget 2009-03-06 17:37:54 -07:00
Joel Dice
e61d05f00b undo temporary big endian offset correction before leaving maybeMove 2009-03-06 12:14:37 -07:00
Joel Dice
7388da6282 fix endianness issues when loading values smaller than BytesPerWord from the stack 2009-03-06 10:56:11 -07:00
Joel Dice
762df17aa7 use Architecture::plan in BranchEvent ctor to determine acceptable types for address 2009-03-05 20:27:59 -07:00
Joel Dice
8cc1f6def8 remove dead code from MyCompiler::call 2009-03-04 17:52:55 -07:00
Joel Dice
2ca8132d97 implement support for volatile fields 2009-03-02 20:18:15 -07:00
Joel Dice
6eacf7b804 fix bounds checks in MyCompiler::initLocalsFromLogicalIp 2009-03-01 22:47:07 +00:00
Joel Dice
97961ecdde pick a temporary register which is valid as both a destination and a source for the required moves in maybeMove 2009-03-01 15:41:03 -07:00
Joel Dice
97e698d806 fix MyCompiler::peak for big-endian architectures 2009-03-01 12:36:30 -07:00
Joel Dice
696282631a fix endianness issues with 64-bit locals 2009-03-01 12:28:17 -07:00
Joel Dice
93ebb571b3 only add site to result if result is live in CombineEvent::compile and TranslateEvent::compile 2009-02-28 19:08:14 -07:00
Joel Dice
d6bd2e7308 make Compiler::store take both a source size and a destination size to avoid endianness issues; change order of Compiler::load parameters to match 2009-02-28 16:17:24 -07:00
Joel Dice
3e6c30a4b5 always return an 8-byte value (or void) from native functions called from Java 
This is important on the 32-bit OS X PowerPC ABI, since the location
of the low 32-bits of a return value change depending on whether the
entire value is 64-bits or not.
 2009-02-28 14:20:43 -07:00
Joel Dice
c5dd97ffea ensure that we release temporaries back to the compiler in powerpc.cpp; allow the first operand of a comparison to be a constant 2009-02-28 13:41:37 -07:00
Joel Dice
73aa499371 clean up offsetToFrameIndex code 2009-02-26 18:53:35 -07:00
Joel Dice
d7d3dd5055 various bugfixes, especially concerning frame allocation and offset calculation 2009-02-25 20:49:42 -07:00
Joel Dice
2554673dda call c->arch->plan in CallEvent ctor to ensure the address operand is placed into the proper operand type for the call instruction 2009-02-25 18:11:41 -07:00
Joel Dice
324caaf98b add size parameter to Assembler::returnLow since the register used depends on the return value size on PowerPC 2009-02-17 18:19:31 -07:00
Joel Dice
cea5a9315d fix block delimiting code in compile.cpp to avoid cycles and nested blocks 2009-02-15 11:11:00 -07:00
Joel Dice
7803663fc9 fix block delimiting code in compiler.cpp to minimize the number of blocks needed 
This exposed bugs in x86.cpp concerning alignment padding which are now
fixed.
 2009-02-14 17:52:44 -07:00
Joel Dice
f58f7b3bdf fix bugs pertaining to tracking reads and and value sites across subroutines (jsr and ret instructions) 2009-02-14 13:26:39 -07:00
Joel Dice
9b0d6854ec fix merge conflicts 2009-02-09 16:22:51 -07:00
Joel Dice
a1ec71423e Merge branch 'master' into powerpc 
Conflicts:

	makefile
	src/assembler.h
	src/binaryToMacho.cpp
	src/compile.cpp
	src/compiler.cpp
	src/x86.cpp
 2009-02-09 16:22:01 -07:00
Joel Dice
a1fc8a4dac add site to result in MemoryEvent::compile regardless of whether the result is live, since the memory location may be used as the target of a move and we need to keep the reference count of the base and index registers nonzero 2009-02-08 19:08:56 -07:00
Joel Dice
29616c4abc freeze target site when using temporary in maybeMove 2009-02-08 18:58:33 -07:00
Joel Dice
4ca45ffa41 fix two bugs concerning tracking available registers and reserving them when necessary 2009-02-08 16:20:28 -07:00
Joel Dice
0fbe89c147 set Value::high when appropriate in MyCompiler::initLocalsFromLogicalIp 2009-02-08 15:13:49 -07:00
Joel Dice
175ec1ff48 remove debug logging 2009-02-08 13:22:28 -07:00
Joel Dice
5066bfdabf tweak register and frame site allocation code to avoid failure in corner cases 2009-02-08 13:21:35 -07:00
Joel Dice
55d2ee1823 avoid clobbering values in sign-extension case of MoveEvent.compile 2009-02-02 19:13:02 -07:00
Joel Dice
123e22322c turn off debug logging 2009-02-01 16:21:55 -07:00
Joel Dice
2e3fd111d4 fix regressions on x86_64 2009-02-01 16:19:11 -07:00
Joel Dice
8b1801c465 various bugfixes involving multiword values 2009-02-01 16:10:56 -07:00
Joel Dice
11408dc2cd fix popIndex calculation in CallEvent ctor 2009-01-31 12:35:45 -07:00
Joel Dice
8b6319fbc8 assume stack grows towards negative addresses when loading and storing multiword locals 2009-01-31 12:05:06 -07:00
Joel Dice
a11d018dc2 fix assertion in MyCompiler::peek 2009-01-29 18:43:46 -07:00
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
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
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