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Commit Graph

22 Commits

Author SHA1 Message Date
Evan Cheng
53ec6fc591 Materialize GA addresses with movw + movt pairs for Darwin in PIC mode. e.g.
movw    r0, :lower16:(L_foo$non_lazy_ptr-(LPC0_0+4))
        movt    r0, :upper16:(L_foo$non_lazy_ptr-(LPC0_0+4))
LPC0_0:
        add     r0, pc, r0

It's not yet enabled by default as some tests are failing. I suspect bugs in
down stream tools.

llvm-svn: 123619
2011-01-17 08:03:18 +00:00
Jim Grosbach
f3bd81ce11 Clean up 80 column violations. No functional change.
llvm-svn: 105350
2010-06-02 21:53:11 +00:00
Jeffrey Yasskin
0a0b21f8c5 * Move stub allocation inside the JITEmitter, instead of exposing a
way for each TargetJITInfo subclass to allocate its own stubs. This
means stubs aren't as exactly-sized anymore, but it lets us get rid of
TargetJITInfo::emitFunctionStubAtAddr(), which lets ARM and PPC
support the eager JIT, fixing http://llvm.org/PR4816.

* Rename the JITEmitter's stub creation functions to describe the kind
of stub they create. So far, all of them create lazy-compilation
stubs, but they sometimes get used when far-call stubs are needed.
Fixing http://llvm.org/PR5201 will involve fixing this.

llvm-svn: 89715
2009-11-23 23:35:19 +00:00
Bruno Cardoso Lopes
4da7e7af43 First patch in the direction of splitting MachineCodeEmitter in two subclasses:
JITCodeEmitter and ObjectCodeEmitter. No functional changes yet. Patch by Aaron Gray

llvm-svn: 72631
2009-05-30 20:51:52 +00:00
Evan Cheng
bc61b6009b Correct PIC function stub codegen.
llvm-svn: 59006
2008-11-10 23:14:47 +00:00
Evan Cheng
080c1a9fac Rename isGVNonLazyPtr to isIndirectSym to reflect how it will be used.
llvm-svn: 58949
2008-11-10 01:08:07 +00:00
Evan Cheng
cfa57662d1 Tell ARMJITInfo if codegen relocation is PIC. It changes how function stubs are generated.
llvm-svn: 58896
2008-11-08 07:38:22 +00:00
Evan Cheng
bc946b09aa Handle ARM machine constantpool entry with non-lazy ptr.
llvm-svn: 58882
2008-11-08 01:31:27 +00:00
Evan Cheng
2ea87890bb Use ARMFunctionInfo to track number of constpool entries and jumptables.
llvm-svn: 58877
2008-11-08 00:51:41 +00:00
Evan Cheng
bf8a1ef40f More code clean up.
llvm-svn: 58872
2008-11-07 22:57:53 +00:00
Evan Cheng
21df9f3b4f Jump table JIT support. Work in progress.
llvm-svn: 58836
2008-11-07 09:06:08 +00:00
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
f117632c3f Handle ARM machine constantpool entries.
llvm-svn: 58671
2008-11-04 00:50:32 +00:00
Evan Cheng
53d4b6531e Add comment.
llvm-svn: 58533
2008-10-31 19:56:03 +00:00
Evan Cheng
07f57f0e41 Use better data structure for ConstPoolId2AddrMap.
llvm-svn: 58532
2008-10-31 19:55:13 +00:00
Evan Cheng
69c2588244 Correct way to handle CONSTPOOL_ENTRY instructions.
llvm-svn: 58409
2008-10-29 23:55:43 +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
1f3211af01 Correlate stubs with functions in JIT: when emitting a stub, the JIT tells the memory manager which function
the stub will resolve.

llvm-svn: 49814
2008-04-16 20:46:05 +00:00
Dan Gohman
2b96ce84aa Add explicit keywords.
llvm-svn: 48801
2008-03-25 22:06:05 +00:00
Chris Lattner
ad9a6ccb83 Remove attribution from file headers, per discussion on llvmdev.
llvm-svn: 45418
2007-12-29 20:36:04 +00:00
Chris Lattner
71e2481181 no email addrs in file headers
llvm-svn: 39962
2007-07-17 05:56:43 +00:00
Evan Cheng
96254545ae Initial ARM JIT support by Raul Fernandes Herbster.
llvm-svn: 37926
2007-07-05 21:15:40 +00:00