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Commit Graph

352 Commits

Author SHA1 Message Date
Evan Cheng
28e234a959 For some targets, it's not possible to place GVs in the same memory buffer as the MachineCodeEmitter allocated memory. Code and data has different read / write / execution privilege requirements.
This is a short term workaround. The current solution is for the JIT memory manager to manage code and data memory separately.

llvm-svn: 58688
2008-11-04 09:30:48 +00:00
Evan Cheng
45516a94c1 Silence a compiler warning.
llvm-svn: 58598
2008-11-03 07:14:02 +00:00
Jim Grosbach
31e64cbf49 Revert errant deletion. The target needs to be able to specify that it doesn't want the generic constant pool to be emitted.
llvm-svn: 58475
2008-10-30 23:44:39 +00:00
Evan Cheng
479adf22ee Let target resolve some relocation results.
llvm-svn: 58407
2008-10-29 23:54:46 +00:00
Jim Grosbach
d735f403a0 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.

llvm-svn: 58338
2008-10-28 18:25:49 +00:00
Nicolas Geoffray
ce30b5caf0 Support for allocation of TLS variables in the JIT. Allocation of a global
variable is moved to the execution engine. The JIT calls the TargetJITInfo
to allocate thread local storage. Currently, only linux/x86 knows how to
allocate thread local global variables.

llvm-svn: 58142
2008-10-25 15:41:43 +00:00
Nuno Lopes
112ac04abd fix a tricky bug in the JIT global variable emitter, that was triggered when JITing a variable independently of a function. This lead to sharing memory memory between functions and GVs thus changing the value of a GV could change the code in execution. more details on the ML.
llvm-svn: 57900
2008-10-21 11:42:16 +00:00
Mon P Wang
dc1aa21e4e Revert r57340 move guard mutex in getPointerToFunction as this can cause
deadlock issues with java

llvm-svn: 57356
2008-10-10 18:07:10 +00:00
Mon P Wang
6c79c8e822 Moved guard mutex upwards to guard materializing a function
in getPointerToFunction

llvm-svn: 57340
2008-10-10 01:47:42 +00:00
Duncan Sands
8f296a3788 Add <cstdio> include where needed by gcc-4.4.
Patch by Samuel Tardieu.

llvm-svn: 57291
2008-10-08 07:23:46 +00:00
Daniel Dunbar
40fb36a42c Unbreak build.
llvm-svn: 57017
2008-10-03 17:11:57 +00:00
Jim Grosbach
a49386d8e7 On Darwin ARM, memory needs special handling to do JIT. This patch expands
this handling to work properly for modifying stub functions, relocations
back to entry points after JIT compilation, etc..

llvm-svn: 57013
2008-10-03 16:17:20 +00:00
Dan Gohman
30c5ce1b7d Switch the MachineOperand accessors back to the short names like
isReg, etc., from isRegister, etc.

llvm-svn: 57006
2008-10-03 15:45:36 +00:00
Nicolas Geoffray
c3efec61f5 Acquire the lock only when necessary. More precisely, do not acquire
the lock when calling a method which may materialize the llvm::Function.

llvm-svn: 56995
2008-10-03 07:27:08 +00:00
Evan Cheng
0ed8f5b185 Add DisableGVCompilation which forces the JIT to assert when it tries to allocate space for a GlobalVariable.
llvm-svn: 56557
2008-09-24 16:25:55 +00:00
Oscar Fuentes
0f25988689 Initial support for the CMake build system.
llvm-svn: 56419
2008-09-22 01:08:49 +00:00
Evan Cheng
a0459a1c5a Preliminary support for systems which require changing JIT memory regions privilege from read / write to read / executable.
llvm-svn: 56303
2008-09-18 07:54:21 +00:00
Anton Korobeynikov
6ad8b060d0 Make safer variant of alias resolution routine to be default
llvm-svn: 56005
2008-09-09 20:05:04 +00:00
Evan Cheng
15fd1af657 MMI may be null.
llvm-svn: 55626
2008-09-02 08:14:01 +00:00
Nicolas Geoffray
05014c43fa Add support for JIT exceptions on Darwin. Since we're dealing with libgcc,
whose darwin code was written after the ability to dynamically register frames,
we need to do special hacks to make things work.

llvm-svn: 55507
2008-08-28 22:34:49 +00:00
Evan Cheng
4fa90a1d3e Get rid of a couple of dynamic_cast.
llvm-svn: 55022
2008-08-20 00:28:12 +00:00
Nicolas Geoffray
2f08e00f01 Update the JIT exception writer to better mimic the codegen exception writer.
Also skip indirect encoding for platforms that ask for one: we direclty
write an address, not a pointer to the address.

llvm-svn: 54987
2008-08-19 14:48:14 +00:00
Nicolas Geoffray
c5c2108727 Register the frame register function when allocating the JIT,
so that lli works out of the box with -enable-eh.

llvm-svn: 54920
2008-08-18 14:53:56 +00:00
Anton Korobeynikov
436f708112 Move SLEB/ULEB size calculation routines from AsmPrinter to TargetAsmInfo. This makes JIT asmprinter-free.
llvm-svn: 54843
2008-08-16 12:57:46 +00:00
Dale Johannesen
718fcee02d Some fixes for x86-64 JIT. Make it use small code
model, except for external calls; this makes
addressing modes PC-relative.  Incomplete.

The assertion at the top of Emitter::runOnMachineFunction
was obviously bogus (always true) so I removed it.
If someone knows what the correct test should be to cover
all the various targets, please fix.

llvm-svn: 54656
2008-08-11 23:46:25 +00:00
Evan Cheng
054bbb0dd8 Add new parameter Fast to createJIT to enable the fast codegen path.
llvm-svn: 54523
2008-08-08 08:11:34 +00:00
Dale Johannesen
a4de0fa539 Rewrite JIT handling of GlobalVariables so they
are allocated in the same buffer as the code,
jump tables, etc.

The default JIT memory manager does not handle buffer
overflow well.  I didn't introduce this and I'm not
attempting to fix it here, but it is more likely to
be hit now since we're putting more stuff in the
buffer.  This affects one test that I know of so far,
MultiSource/Benchmarks/NPB-serial/is.

llvm-svn: 54442
2008-08-07 01:30:15 +00:00
Dan Gohman
1238bf634b Trim #includes.
llvm-svn: 54350
2008-08-05 15:32:23 +00:00
Evan Cheng
10d4254f45 Fix for PR2578. Do not split off a block whose size is less than FreeRangeHeader::getMinBlockSize(). Patch by Damien.
llvm-svn: 54152
2008-07-29 07:38:32 +00:00
Dan Gohman
6c9a53ffac Use empty() instead of size().
llvm-svn: 53178
2008-07-07 17:52:43 +00:00
Dan Gohman
27986beb10 Correct a comment.
llvm-svn: 53064
2008-07-03 00:51:05 +00:00
Dan Gohman
83c1b4cede Prune a few dependencies on MachineFunction.h.
llvm-svn: 52976
2008-07-01 18:15:35 +00:00
Dan Gohman
c8097f8c8c Split ISD::LABEL into ISD::DBG_LABEL and ISD::EH_LABEL, eliminating
the need for a flavor operand, and add a new SDNode subclass,
LabelSDNode, for use with them to eliminate the need for a label id
operand.

Change instruction selection to let these label nodes through
unmodified instead of creating copies of them. Teach the MachineInstr
emitter how to emit a MachineInstr directly from an ISD label node.

This avoids the need for allocating SDNodes for the label id and
flavor value, as well as SDNodes for each of the post-isel label,
label id, and label flavor.

llvm-svn: 52943
2008-07-01 00:05:16 +00:00
Chris Lattner
9c5a1a7da3 Implement JIT support for global aliases, patch by David Chisnall!
llvm-svn: 52738
2008-06-25 20:21:35 +00:00
Chris Lattner
ef1aa7c9db Switch the PPC backend and target-independent JIT to use the libsystem
InvalidateInstructionCache method instead of calling through
a hook on the JIT.  This is a host feature, not a target feature.

llvm-svn: 52734
2008-06-25 17:18:44 +00:00
Dan Gohman
7460588026 Use back() instead of [size()-1].
llvm-svn: 52600
2008-06-21 22:00:54 +00:00
Dan Gohman
9b9cf4cf9c Use static_cast instead of reinterpret_cast for casting void*.
llvm-svn: 52592
2008-06-21 20:17:03 +00:00
Anton Korobeynikov
5b04f6d658 Provide generic hooks for icache invalidation. Add PPC implementation.
Patch by Gary Benson!

llvm-svn: 52418
2008-06-17 17:30:05 +00:00
Chris Lattner
b2c9317b8d Add a new flag that disables symbol lookup with dlsym when set. This allows
a JIT client to completely control symbol lookup with the LazyFunctionCreator
interface.

llvm-svn: 52335
2008-06-16 17:44:14 +00:00
Dan Gohman
c877140168 Add #includes to make some dependencies explicit.
llvm-svn: 51496
2008-05-23 20:40:06 +00:00
Nate Begeman
26bb02a23a Fix a couple issues with the JIT and multiple modules:
1. The "JITState" object creates a PassManager with the ModuleProvider that the
   jit is created with.  If the ModuleProvider is removed and deleted, the
   PassManager is invalid.

2. The Global maps in the JIT were not invalidated with a ModuleProvider was 
   removed.  This could lead to a case where the Module would be freed, and a 
   new Module with Globals at the same addresses could return invalid results.

llvm-svn: 51384
2008-05-21 16:34:48 +00:00
Nate Begeman
f924b6e0d9 Fix a backwards check in the JIT symbol table code
llvm-svn: 51229
2008-05-18 19:09:10 +00:00
Evan Cheng
d86d86bbdf Disable JIT symbol table for now.
llvm-svn: 51152
2008-05-15 17:31:35 +00:00
Gabor Greif
48ffb6c7dc Fix a bunch of 80col violations that arose from the Create API change. Tweak makefile targets to find these better.
llvm-svn: 51143
2008-05-15 10:04:30 +00:00
Dan Gohman
bab18cae46 Clean up the use of static and anonymous namespaces. This turned up
several things that were neither in an anonymous namespace nor static
but not intended to be global.

llvm-svn: 51017
2008-05-13 00:00:25 +00:00
Nicolas Geoffray
aaa764cf3a Be pessimistic in computing the buffer size when aligning.
llvm-svn: 50008
2008-04-20 23:39:44 +00:00
Nicolas Geoffray
c80229e1c7 Cosmetic changes, as suggested by Evan. No functionality changes.
llvm-svn: 49993
2008-04-20 17:44:19 +00:00
Nicolas Geoffray
5fdce98ebd Do not hold the JIT lock when materializing a function and verify if the
function has already been codegen'd. This is required by the Java class loading
mechanism which executes Java code when materializing a function.

llvm-svn: 49988
2008-04-20 08:33:02 +00:00
Chris Lattner
f390d62b7f Switch to using Simplified ConstantFP::get API.
llvm-svn: 49977
2008-04-20 00:41:09 +00:00
Nicolas Geoffray
f005e6fa3b Enable jitting with a known memory size.
llvm-svn: 49924
2008-04-18 20:59:31 +00:00