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Commit Graph

20 Commits

Author SHA1 Message Date
Reid Kleckner
3f197c850d Re-committing r76828 with the JIT memory manager changes now that the build
bots like the BumpPtrAllocator changes.

llvm-svn: 76902
2009-07-23 21:46:56 +00:00
Reid Kleckner
6f9bf7f028 Reverting r76825 and r76828, since they caused clang runtime errors and some build failure involving memset.
llvm-svn: 76838
2009-07-23 01:40:54 +00:00
Reid Kleckner
b500f07edf Make the JIT code emitter properly retry and ask for more memory when it runs
out of memory, and also make the default memory manager allocate more memory
when it runs out.

Also, switch function stubs and global data over to using the BumpPtrAllocator.

This makes it so the JIT no longer mmaps (or the equivalent on Windows) 16 MB
of memory, and instead allocates in 512K slabs.  I suspect this size could go
lower, especially on embedded platforms, now that more slabs can be allocated.

llvm-svn: 76828
2009-07-23 00:49:59 +00:00
Jim Grosbach
1de8b23129 Update the stub and callback code to handle lazy compilation. The stub
is re-written by the callback to branch directly to the compiled code
in future invocations.

Added back in range-based memory permission functions for the updating of
the stub on Darwin.

llvm-svn: 57846
2008-10-20 21:39:23 +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
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
Chris Lattner
24c59453f6 Add a new InvalidateInstructionCache method to sys::Memory.
llvm-svn: 52731
2008-06-25 17:14:10 +00:00
Dan Gohman
a84b75df17 Remove uses of llvm/System/IncludeFile.h that are no longer needed.
llvm-svn: 50695
2008-05-06 01:32:53 +00:00
Owen Anderson
e540be453a Revert r48676. I had plans for using it, but now it's just dead code.
llvm-svn: 48743
2008-03-24 21:29:58 +00:00
Owen Anderson
de2d3aca1b Add a comment, and fix a bug where AllocateRW recurred to AllocateRWX instead of itself.
llvm-svn: 48677
2008-03-22 02:59:54 +00:00
Owen Anderson
5654dda62c Add an AllocateRW to match AllocateRWX.
llvm-svn: 48676
2008-03-22 02:33:53 +00:00
Chris Lattner
e0b1ee937a Don't attribute in file headers anymore. See llvmdev for the
discussion of this change.  Boy are my fingers tired. ;-)

llvm-svn: 45411
2007-12-29 19:59:42 +00:00
Reid Spencer
10b9edbb69 For PR780:
1. Move IncludeFile.h to System library
2. Move IncludeFile.cpp to System library
3. #1 and #2 required to prevent cyclic library dependencies for libSystem
4. Convert all existing uses of Support/IncludeFile.h to System/IncludeFile.h
5. Add IncludeFile support to various lib/System classes.
6. Add new lib/System classes to LinkAllVMCore.h
All this in an attempt to pull in lib/System to what's required for VMCore

llvm-svn: 29287
2006-07-26 16:18:00 +00:00
Chris Lattner
8116948fa5 Change AllocateRWX/DeallocateRWX to not throw an exception.
llvm-svn: 29058
2006-07-07 17:32:37 +00:00
Andrew Lenharth
d8bfbd99e9 support near allocations for the JIT
llvm-svn: 22554
2005-07-29 23:40:16 +00:00
Misha Brukman
f52511fcc6 Remove vim settings from source code; people should use llvm/utils/vim/vimrc
llvm-svn: 21704
2005-05-05 22:33:09 +00:00
Misha Brukman
8018cc9e05 Remove trailing whitespace
llvm-svn: 21411
2005-04-21 20:48:15 +00:00
Reid Spencer
8ef5b3a158 Wrap long lines
llvm-svn: 19050
2004-12-20 00:58:41 +00:00
Reid Spencer
ce7c15737a Simplify the sys::Memory interface per Chris' request.
llvm-svn: 16318
2004-09-13 22:38:11 +00:00
Reid Spencer
a166926577 Initial commit of a file to declare the interface for platform independent
support for various memory allocation operations.

llvm-svn: 16279
2004-09-11 04:20:58 +00:00