6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-09-03 02:30:00 +00:00
Code Issues Projects Releases Wiki Activity
66,315 Commits 39 Branches 0 Tags 277 MiB
063efbf569
Commit Graph

178 Commits

Author SHA1 Message Date
Evan Cheng
358dec5180 Part 1. 
- Change register allocation hint to a pair of unsigned integers. The hint type is zero (which means prefer the register specified as second part of the pair) or entirely target dependent.
- Allow targets to specify alternative register allocation orders based on allocation hint.

Part 2.
- Use the register allocation hint system to implement more aggressive load / store multiple formation.
- Aggressively form LDRD / STRD. These are formed *before* register allocation. It has to be done this way to shorten live interval of base and offset registers. e.g.
v1025 = LDR v1024, 0
v1026 = LDR v1024, 0
=>
v1025,v1026 = LDRD v1024, 0

If this transformation isn't done before allocation, v1024 will overlap v1025 which means it more difficult to allocate a register pair.

- Even with the register allocation hint, it may not be possible to get the desired allocation. In that case, the post-allocation load / store multiple pass must fix the ldrd / strd instructions. They can either become ldm / stm instructions or back to a pair of ldr / str instructions.

This is work in progress, not yet enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73381 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-15 08:28:29 +00:00
Bruno Cardoso Lopes
434dd4fd94 Fix new CodeEmitter stuff to follow LLVM codying style. Patch by Aaron Gray 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72697 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-01 19:57:37 +00:00
Bruno Cardoso Lopes
a3f99f9033 First patch in the direction of splitting MachineCodeEmitter in two subclasses: 
JITCodeEmitter and ObjectCodeEmitter. No functional changes yet. Patch by Aaron Gray



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72631 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-30 20:51:52 +00:00
Evan Cheng
5788d1a169 Fix MachineCodeEmitter to use uintptr_t instead of intptr_t. This avoids some overflow issues. Patch by Thomas Jablin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60828 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-10 02:32:19 +00:00
Evan Cheng
97c573d5de Fix a thinko. MO is getOperand(i-1) so we don't have to adjust e. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59696 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 02:25:51 +00:00
Evan Cheng
e3066abfcf Eliminate a compile time warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59678 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-19 23:21:33 +00:00
Evan Cheng
a956255ebf Fix MOVrx, MOVsrl_flag, and MOVsra_flag encodings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59314 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-14 20:09:11 +00:00
Evan Cheng
ffa6d962a7 Handle the rest of pseudo instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59275 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-13 23:36:57 +00:00
Evan Cheng
35b0bfd06d Don't forget to emit stubs for function GV's emitted in CONSTPOOL_ENTRY's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59258 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-13 19:22:28 +00:00
Evan Cheng
67fd91f3df Missed a break statement. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59231 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-13 07:46:59 +00:00
Evan Cheng
148cad8b30 Fix pre- and post-indexed load / store encoding bugs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59230 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-13 07:34:59 +00:00
Evan Cheng
607f1b41a2 Address mode immediate offset has already been divided by 4. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59117 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-12 08:21:12 +00:00
Evan Cheng
3f4924efff Fix a VFP binary arithmetic instruction encoding bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59116 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-12 08:14:21 +00:00
Evan Cheng
706329143d Fix address mode 3 immediate offset mode encoding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59109 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-12 07:34:37 +00:00
Evan Cheng
3c4a4ffa3d Consolidate formats; fix FCMPED etc. encodings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59107 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-12 07:18:38 +00:00
Evan Cheng
80a119842d Fix VFP conversion instruction encodings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59104 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-12 06:41:41 +00:00
Evan Cheng
d06d48d2b5 Fix encoding of single-precision VFP registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59102 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-12 02:19:38 +00:00
Evan Cheng
580c0dfaed VFP fld / fst immediate field is multiplied by 4. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59100 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-12 01:02:24 +00:00
Evan Cheng
0a0ab1387a Fix FMDRR encoding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59088 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-11 22:46:12 +00:00
Evan Cheng
cb5201f3b2 Handle floating point constpool_entry's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59087 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-11 22:19:31 +00:00
Evan Cheng
cd8e66a1ef Encode VFP load / store instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59084 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-11 21:48:44 +00:00
Evan Cheng
78be83d7c2 Encode VFP conversion instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59074 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-11 19:40:26 +00:00
Evan Cheng
96581d3633 Encode VFP arithmetic instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59016 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-11 02:11:05 +00:00
Evan Cheng
9ed2f80910 Rename isGVNonLazyPtr to isIndirectSym to reflect how it will be used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58949 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-10 01:08:07 +00:00
Evan Cheng
3cc8223a3c Tell ARMJITInfo if codegen relocation is PIC. It changes how function stubs are generated. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58896 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-08 07:38:22 +00:00
Evan Cheng
103325179a Fix relocation for calls to external symbols. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58893 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-08 07:22:33 +00:00
Evan Cheng
05c356e65a Skip over two-address use operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58883 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-08 01:44:13 +00:00
Evan Cheng
e96a490d7a Handle ARM machine constantpool entry with non-lazy ptr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58882 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-08 01:31:27 +00:00
Evan Cheng
413a89f318 More code clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58872 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-07 22:57:53 +00:00
Evan Cheng
437c1738ef Get PIC jump table working. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58869 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-07 22:30:53 +00:00
Evan Cheng
4df60f5491 Jump table JIT support. Work in progress. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58836 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-07 09:06:08 +00:00
Evan Cheng
8b59db3f2c Encode misc arithmetic instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58828 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-07 01:41:35 +00:00
Evan Cheng
97f48c39fd Encode extend instructions; more clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58818 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-06 22:15:19 +00:00
Evan Cheng
12c3a533c5 - Improve naming consistency: Branch -> BrFrm, BranchMisc -> BrMiscFrm. 
- Consolidate instruction formats.
- Other clean up.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58808 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-06 17:48:05 +00:00
Evan Cheng
d87293ce78 Remove opcode from instruction TS flags; add MOVCC support; fix addrmode3 encoding bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58800 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-06 08:47:38 +00:00
Evan Cheng
9092213a5e Fix so_imm encoding bug; add support for MOVi2pieces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58790 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-06 02:25:39 +00:00
Evan Cheng
fbc9d412ef Fix encoding of multiple instructions with 3 src operands; also handle smmul, smmla, and smmls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58789 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-06 01:21:28 +00:00
Evan Cheng
83b5cf0272 Encode pic load / store instructions; fix some encoding bugs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58780 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-05 23:22:34 +00:00
Evan Cheng
edda31c412 Restructure ARM code emitter to use instruction formats instead of addressing modes to determine how to encode instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58764 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-05 18:35:52 +00:00
Evan Cheng
142c15e052 Debug output tweak. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58708 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-04 17:58:53 +00:00
Evan Cheng
25e04788bf Handle ARM machine constantpool entries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58671 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-04 00:50:32 +00:00
Jim Grosbach
0a4b9dc9b1 Add binary encoding support for multiply instructions. Some blanks left to fill in, but the basics are there. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58626 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-03 18:38:31 +00:00
Evan Cheng
938b9d8ef7 Use better data structure for ConstPoolId2AddrMap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58532 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-31 19:55:13 +00:00
Evan Cheng
ba44df60d6 Actually make debug output understandable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58529 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-31 19:15:52 +00:00
Evan Cheng
eb4ed4b266 Encode PICADD; some code clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58526 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-31 19:10:44 +00:00
Evan Cheng
e53a5af966 I think we got non-machine specific constpool entries covered. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58474 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-30 23:43:36 +00:00
Evan Cheng
0f282439be Correct way to handle CONSTPOOL_ENTRY instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58409 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-29 23:55:43 +00:00
Jim Grosbach
bc6d876adf Support for constant islands in the ARM JIT. 
Since the ARM constant pool handling supercedes the standard LLVM constant
pool entirely, the JIT emitter does not allocate space for the constants,
nor initialize the memory. The constant pool is considered part of the 
instruction stream.

Likewise, when resolving relocations into the constant pool, a hook into
the target back end is used to resolve from the constant ID# to the
address where the constant is stored.

For now, the support in the ARM emitter is limited to 32-bit integer. Future
patches will expand this to the full range of constants necessary.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58338 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-28 18:25:49 +00:00
Jim Grosbach
3341262de2 Encode the conditional execution predicate when JITing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57258 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-07 19:05:35 +00:00
Jim Grosbach
9e729a2de5 Clarify naming and correct conditional so that CMP and CMN instructions get the Rn operand encoded properly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57252 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-07 17:42:09 +00:00
Jim Grosbach
48b828fdb4 Indexing off by one resulted in errant encoding of source register for 
reg->reg moves.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57011 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-03 15:53:56 +00:00
Jim Grosbach
016d34cc4c NeedStub/DoesntNeedStub logic was reversed, leading to not using a stub 
for global relocations that do need them (libc calls, for example).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57010 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-03 15:52:42 +00:00
Dan Gohman
d735b8019b Switch the MachineOperand accessors back to the short names like 
isReg, etc., from isRegister, etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57006 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-03 15:45:36 +00:00
Jim Grosbach
efd30ba798 Fix typo s/ther/there/ 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56924 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-01 18:16:49 +00:00
Evan Cheng
057d0c3535 Duh. Default to ARMCC::AL (always). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56301 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-18 07:28:19 +00:00
Evan Cheng
7fd7ca4e7f Fix addrmode1 instruction encodings; fix bx_ret encoding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56277 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-17 07:53:38 +00:00
Evan Cheng
2aa0e649bf Fix random abort. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56184 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-13 01:55:59 +00:00
Evan Cheng
e7de7e3574 Typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56182 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-13 01:44:01 +00:00
Evan Cheng
be3034c288 Rely on instruction format to determine so_reg operand for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56181 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-13 01:38:29 +00:00
Evan Cheng
05fc966401 Revert 56176. All those instruction formats are still needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56180 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-13 01:35:33 +00:00
Evan Cheng
55375a44f9 Accidentially flipped the condition. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56179 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-13 01:29:57 +00:00
Evan Cheng
42d5ee062a Add debug dumps. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56178 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-13 01:15:21 +00:00
Evan Cheng
a964b7dffe Eliminate unnecessary instruction formats. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56176 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-12 23:15:39 +00:00
Evan Cheng
49a9f2958d Addrmode 1 S bit can be dynamically set. Look for CPSR def. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56172 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-12 22:45:55 +00:00
Evan Cheng
5f1db7bf31 Rewrite address mode 1 code emission routines. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56171 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-12 22:01:15 +00:00
Dan Gohman
ae73dc1448 Tidy up several unbeseeming casts from pointer to intptr_t. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55779 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-04 17:05:41 +00:00
Evan Cheng
7602e11c32 Revamp ARM JIT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55624 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-02 06:52:38 +00:00
Anton Korobeynikov
7c1c261272 Remove bunch of gcc 4.3-related warnings from Target 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47369 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 11:22:39 +00:00
Dan Gohman
6f0d024a53 Rename MRegisterInfo to TargetRegisterInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46930 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-10 18:45:23 +00:00
Chris Lattner
749c6f6b5e rename TargetInstrDescriptor -> TargetInstrDesc. 
Make MachineInstr::getDesc return a reference instead
of a pointer, since it can never be null.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45695 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 07:27:27 +00:00
Chris Lattner
69244300b8 Rename MachineInstr::getInstrDescriptor -> getDesc(), which reflects 
that it is cheap and efficient to get.

Move a variety of predicates from TargetInstrInfo into 
TargetInstrDescriptor, which makes it much easier to query a predicate
when you don't have TII around.  Now you can use MI->getDesc()->isBranch()
instead of going through TII, and this is much more efficient anyway. Not
all of the predicates have been moved over yet.

Update old code that used MI->getInstrDescriptor()->Flags to use the
new predicates in many places.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45674 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 01:56:04 +00:00
Chris Lattner
8aa797aa51 Add new shorter predicates for testing machine operands for various types: 
e.g. MO.isMBB() instead of MO.isMachineBasicBlock().  I don't plan on 
switching everything over, so new clients should just start using the 
shorter names.

Remove old long accessors, switching everything over to use the short
accessor: getMachineBasicBlock() -> getMBB(), 
getConstantPoolIndex() -> getIndex(), setMachineBasicBlock -> setMBB(), etc.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45464 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-30 23:10:15 +00:00
Chris Lattner
9a1ceaedc2 Use MachineOperand::getImm instead of MachineOperand::getImmedValue. Likewise setImmedValue -> setImm 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45453 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-30 20:49:49 +00:00
Chris Lattner
4ee451de36 Remove attribution from file headers, per discussion on llvmdev. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45418 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 20:36:04 +00:00
Raul Herbster
9c1a3827ce Comments added. It now generates V5TE multiply instructions. However, it is still necessary to model PUWLSH bits more clearly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41627 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-30 23:29:26 +00:00
Evan Cheng
0ff94f7fcc Initial JIT support for ARM by Raul Fernandes Herbster. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40887 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-07 01:37:15 +00:00
Chris Lattner
c3dbe70ce7 no email addrs in file headers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39962 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-17 05:56:43 +00:00
Evan Cheng
148b6a419f Initial ARM JIT support by Raul Fernandes Herbster. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37926 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-05 21:15:40 +00:00