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380 Commits

Author SHA1 Message Date
Chris Lattner
10594206f4 Add support to the X86 backend for emitting ELF files. To use this, we 
currently use: llc t.bc --filetype=obj

This will produce a t.o file which is dumpable with readelf.  Currently
the file produced is empty, but the scaffolding to do more is now in place.

llvm-svn: 22292
 2005-06-27 06:30:12 +00:00
Chris Lattner
f11f48ba61 Refactor the addPassesToEmitAssembly interface into a addPassesToEmitFile 
interface.

llvm-svn: 22282
 2005-06-25 02:48:37 +00:00
Chris Lattner
b5ff4e5e10 Enable pattern isel by default 
llvm-svn: 21898
 2005-05-12 19:56:09 +00:00
Misha Brukman
c88330ad13 * Remove trailing whitespace 
* Convert tabs to spaces

llvm-svn: 21426
 2005-04-21 23:38:14 +00:00
Nate Begeman
779c5cbb44 Make pattern isel default for ppc 
Add new ppc beta option related to using condition registers
Make pattern isel control flag (-enable-pattern-isel) global and tristate
  0 == off
  1 == on
  2 == target default

llvm-svn: 21309
 2005-04-15 22:12:16 +00:00
Chris Lattner
ca4ca5520b Allow the selection-dag based selector to be diabled with -disable-pattern-isel. 
For now, this is the default, as the current selector is missing some big pieces.
To enable the new selector, pass -disable-pattern-isel=false to llc or lli.

llvm-svn: 19335
 2005-01-07 07:50:50 +00:00
Jeff Cohen
68f28730b7 Revert elimination of global variable hack... still needed. 
llvm-svn: 19273
 2005-01-03 16:34:19 +00:00
Jeff Cohen
2cf40e142c Eliminate the use of the global variable hack in the X86 target that was used 
to get Visual Studio to link in X86.lib to the executables that need it.  There
is another way of doing it.

llvm-svn: 19252
 2005-01-02 04:23:12 +00:00
Chris Lattner
17550c456c Use the target triple to pick this target. 
llvm-svn: 18830
 2004-12-12 17:40:28 +00:00
Chris Lattner
99d7bb3378 Fix a warning 
llvm-svn: 17431
 2004-11-02 15:27:57 +00:00
Chris Lattner
720eb217a7 Add placeholder variable to make Win32 work, applied for Morten Ofstad 
llvm-svn: 17406
 2004-11-01 20:10:20 +00:00
Chris Lattner
fbc070bfdc Improve compatibility with VC++, patch contributed by Morten Ofstad! 
llvm-svn: 17126
 2004-10-18 15:54:17 +00:00
Chris Lattner
23c8d0b65a The person who was planning to add SSE support isn't anymore, so disable 
the -sse* options (to avoid misleading people).

Also, the stack alignment of the target doesn't depend on whether SSE is
eventually implemented, so remove a comment.

llvm-svn: 16860
 2004-10-08 22:41:46 +00:00
Reid Spencer
7c16caa336 Changes For Bug 352 
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137
 2004-09-01 22:55:40 +00:00
Chris Lattner
dfa9dbceaa Add -sse[,2,3] arguments to LLC 
llvm-svn: 16018
 2004-08-24 08:18:44 +00:00
Chris Lattner
1d088db15e Disable the pattern isel 
llvm-svn: 15787
 2004-08-15 23:02:17 +00:00
Chris Lattner
6971be8159 Completely disable the pattern isel until it is more substantial. 
llvm-svn: 15380
 2004-08-01 03:28:02 +00:00
Chris Lattner
8d06c43f01 Remove some (LARGE) abandoned code for the release. If this is ever needed 
again in the future, it can be resurrected out of CVS

llvm-svn: 15112
 2004-07-22 21:30:35 +00:00
Chris Lattner
c2726e63ed Delete the allocate*TargetMachine function, which is now dead . 
The shared command line options are now in a header that makes sense.

llvm-svn: 14756
 2004-07-11 04:17:10 +00:00
Chris Lattner
73eb9436ee Make these format a bit nicer 
llvm-svn: 14747
 2004-07-11 03:27:42 +00:00
Chris Lattner
4266f8017d Auto-registrate target 
llvm-svn: 14745
 2004-07-11 02:48:49 +00:00
Chris Lattner
6c322ecc31 Remove dead blocks 
llvm-svn: 14564
 2004-07-02 05:46:41 +00:00
Chris Lattner
e6e1b48023 I believe that the code generator now properly handles dead basic blocks. If not, 
this is a bug, and should be fixed.

llvm-svn: 14476
 2004-06-29 07:17:12 +00:00
Chris Lattner
bcdadf3765 Move the IntrinsicLowering header into the CodeGen directory, as per PR346 
llvm-svn: 14266
 2004-06-20 07:49:54 +00:00
Chris Lattner
6d6b3b3ce9 Fix the fixed stack offset, patch contributed by Vladimir Prus 
llvm-svn: 14110
 2004-06-10 06:19:25 +00:00
Chris Lattner
6e4edd65ab Add support for accurate garbage collection to the LLVM code generators 
llvm-svn: 13696
 2004-05-23 21:23:35 +00:00
Jakub Staszak
de647007d3 Tablgen files for really simple instruction selector 
llvm-svn: 12714
 2004-04-06 19:34:00 +00:00
Chris Lattner
a4b15f04c6 The X86 backend no longer needs the select lowering pass. 
llvm-svn: 12578
 2004-03-31 22:03:46 +00:00
Chris Lattner
53b58cb854 Add direct support for integer select instructions, though we still don't support 
folding compares into the select yet.

llvm-svn: 12553
 2004-03-30 21:22:00 +00:00
Chris Lattner
1a0e9ac2f5 Add the select lowering pass to get initial support for select instructions 
llvm-svn: 12541
 2004-03-30 18:41:59 +00:00
Brian Gaeke
8351d8c1a8 make -print-machineinstrs work for both SparcV9 and X86 
llvm-svn: 12122
 2004-03-04 19:16:23 +00:00
Chris Lattner
64c9b223bd Fix failures in 099.go due to the cfgsimplify pass creating switch instructions 
where there did not used to be any before

llvm-svn: 11829
 2004-02-25 19:30:19 +00:00
Alkis Evlogimenos
6a35516dcc Add back machine code deleter pass until we get a MachineCode pass 
that will be responsible for the creation of MachineFunctions and will
be required by all MachineFunctionPass passes.

llvm-svn: 11453
 2004-02-15 00:03:15 +00:00
Alkis Evlogimenos
80da865f77 Change MachineBasicBlock's vector of MachineInstr pointers into an 
ilist of MachineInstr objects. This allows constant time removal and
insertion of MachineInstr instances from anywhere in each
MachineBasicBlock. It also allows for constant time splicing of
MachineInstrs into or out of MachineBasicBlocks.

llvm-svn: 11340
 2004-02-12 02:27:10 +00:00
Chris Lattner
56f9b190e1 Add a new (hidden) option that is useful for profiling. 
llvm-svn: 11218
 2004-02-09 01:47:10 +00:00
Brian Gaeke
94b5c3cb91 Take away the default iostream argument of createMachineFunctionPrinterPass(), 
at Chris's request.

llvm-svn: 11120
 2004-02-04 21:41:01 +00:00
Chris Lattner
5d236005b0 Clean up a lot of the code I added yesterday by exposing the IntrinsicLowering 
implementation from the TargetMachine directly.

llvm-svn: 10636
 2003-12-28 21:23:38 +00:00
Chris Lattner
c45a033b42 implement support for the intrinsic lowering functionality 
llvm-svn: 10629
 2003-12-28 09:47:19 +00:00
Alkis Evlogimenos
68cff6bf4d Remove floating point killer pass. This is now implemented in the 
instruction selector by adding a new pseudo-instruction
FP_REG_KILL. This instruction implicitly defines all x86 fp registers
and is a terminator so that passes which add machine code at the end
of basic blocks (like phi elimination) do not add instructions between
it and the branch or return instruction.

llvm-svn: 10562
 2003-12-20 16:22:59 +00:00
Chris Lattner
452597611f Finally, _actually delete the machine code_ for a function, after it has 
been emitted.  Also, since the FPK pass is causing memory access violations,
disable it.

llvm-svn: 10559
 2003-12-20 10:20:19 +00:00
Chris Lattner
833c3c2597 Rip JIT specific stuff out of TargetMachine, as per PR176 
llvm-svn: 10542
 2003-12-20 01:22:19 +00:00
Alkis Evlogimenos
904cd6d48c Add a floating point killer pass. This pass runs before register 
allocaton on the X86 to add information to the machine code denoting
that our floating point stackifier cannot handle virtual point
register that are alive across basic blocks. This pass adds an
implicit def of all virtual floating point register at the end of each
basic block.

llvm-svn: 10446
 2003-12-13 05:36:22 +00:00
Chris Lattner
6d760d7cb3 Add an option to enable the SSA based peephole optimizer. 
Eventually this pass will provide substantially better code in the interim between when we
have a crappy isel and nice isel.  Unfortunately doing so requires fixing the backend to
actually SUPPORT all of the fancy addressing modes that we now generate, and writing a DCE
pass for machine code.  Each of these is a fairly substantial job, so this will remain disabled
for the immediate future.  :(

llvm-svn: 10276
 2003-12-01 05:18:30 +00:00
Brian Gaeke
960707c335 Put all LLVM code into the llvm namespace, as per bug 109. 
llvm-svn: 9903
 2003-11-11 22:41:34 +00:00
Chris Lattner
72a4db8b92 Fix warnings building on sparc 
llvm-svn: 9758
 2003-11-06 21:30:05 +00:00
John Criswell
482202a601 Added LLVM project notice to the top of every C++ source file. 
Header files will be on the way.

llvm-svn: 9298
 2003-10-20 19:43:21 +00:00
Brian Gaeke
67a5a865ae Make replaceMachineCodeForFunction return void. 
llvm-svn: 9288
 2003-10-20 15:15:17 +00:00
Chris Lattner
358e7c3edb Eliminate code for pointer size and endianness emulation. 
llvm-svn: 9281
 2003-10-20 04:11:23 +00:00
Brian Gaeke
c42d7951f2 You can't just blat the address into memory, you have to blat its 
displacement.

llvm-svn: 9210
 2003-10-17 21:47:25 +00:00
Brian Gaeke
1a7668a9fd Implement replaceMachineCodeForFunction() for x86. 
llvm-svn: 9204
 2003-10-17 18:27:46 +00:00
Chris Lattner
37225efa97 Instead of hacking in custom support for Invoke/Unwind, use the LowerInvoke pass 
llvm-svn: 8871
 2003-10-05 19:15:47 +00:00
Alkis Evlogimenos
5facafaabe Moved enum and command-line option in separate file. Also added function that returns the user selected register allocator to the caller. 
llvm-svn: 8819
 2003-10-02 16:57:49 +00:00
Alkis Evlogimenos
8207a2c079 Change llc command line for register allocators 
llvm-svn: 8815
 2003-10-02 06:13:19 +00:00
Alkis Evlogimenos
3dfcbf1317 Revert previous change. For some reason this went into the main branch 
llvm-svn: 8805
 2003-10-01 19:40:13 +00:00
Alkis Evlogimenos
568e4386e8 Added command line option for linear scan allocator 
llvm-svn: 8804
 2003-10-01 19:38:10 +00:00
Chris Lattner
4fd144acc8 Targets should configure themselves based on a Module, not some wierd flags 
llvm-svn: 8132
 2003-08-24 19:49:48 +00:00
Chris Lattner
4b422520ca Fix ABI issue: Longs really do need to be only 4 byte aligned on X86. 
This bug caused miscompilation of programs using 'struct stat', but only if
compiled with support for 64-bit filesystems.  This could in theory effect
other things, but only if the LLVM code shared data structures with native code.

llvm-svn: 7928
 2003-08-17 23:20:40 +00:00
Brian Gaeke
02cbe2824c addPassesToJITCompile now takes a FunctionPassManager, to support 
function-at-a-time compilation and emission of code.
Separate addPassesToEmitAssembly from addPassesToJITCompile, because
 the latter requires you to use FunctionPasses, and the former might
 diverge anyway.

llvm-svn: 7817
 2003-08-13 18:15:52 +00:00
Chris Lattner
e61db425e8 Add support for a pattern matching instruction selector. This is still in 
the early implementation phases, so it is disabled by default

llvm-svn: 7719
 2003-08-11 14:59:22 +00:00
Chris Lattner
1d6ba3e359 Factor shared code 
llvm-svn: 7600
 2003-08-05 16:34:44 +00:00
Chris Lattner
a2e2f5cc45 Rename function to be more consistent with filename 
llvm-svn: 7352
 2003-07-26 23:49:58 +00:00
Brian Gaeke
a92dce471b Printer.cpp: Ditch addRequired/getAnalysis, because they leave 
Printer::doFinalization() out in the cold.  Now we pass in a TargetMachine
  to Printer's constructor and get the TargetData from the TargetMachine.
 Don't pass TargetMachine or MRegisterInfo objects around in the Printer.
 Constify TargetData references.
X86.h: Update comment and prototype of createX86CodePrinterPass().
X86TargetMachine.cpp: Update callers of createX86CodePrinterPass().

llvm-svn: 7275
 2003-07-23 20:25:08 +00:00
Brian Gaeke
ac94bab876 lib/Target/X86/X86TargetMachine.{cpp,h}: Add initial version 
(non-working) of llc guts for X86, and add a prototype for it.

llvm-svn: 6779
 2003-06-18 21:43:21 +00:00
Chris Lattner
4f6cdbdf81 Remove two fields from TargetData which are target specific. 
llvm-svn: 5963
 2003-04-26 20:11:09 +00:00
Chris Lattner
afdf01ef62 Fix compatibility bug: X86 aligns doubles to 4 bytes, not 8! 
llvm-svn: 5935
 2003-04-25 06:05:57 +00:00
Chris Lattner
524608ab79 Add support for the Switch instruction by running the lowerSwitch pass first 
llvm-svn: 5867
 2003-04-23 16:24:55 +00:00
Chris Lattner
30f40d94cc Rename -no-* to -disable-* 
llvm-svn: 5642
 2003-02-26 20:00:41 +00:00
Chris Lattner
b2809dc6b5 Implement code to keep the stack pointer aligned to an 8 byte boundary. 
This improves the performance of the power benchmark by a few percent.
This will be neccesary for SSE code, which requires 16 byte alignment of
the stack.

llvm-svn: 5320
 2003-01-16 02:20:12 +00:00
Chris Lattner
962d5befb3 * No longer need lowerallocation pass 
* Add X86 Stackifier pass
* Add peephole optimizer pass

llvm-svn: 5233
 2003-01-13 00:51:23 +00:00
Chris Lattner
9a81e69439 * Initialize new FrameInfo member 
* most pass ctors no longer take TM arguments
* New prolog/epilog insertion pass

llvm-svn: 5188
 2002-12-28 20:33:32 +00:00
Chris Lattner
55aaff5590 Free machine code 
llvm-svn: 5146
 2002-12-25 05:06:21 +00:00
Chris Lattner
a32b4055be Changes to allow for a configurable target machine that allows big endian and/or long pointer operation 
llvm-svn: 5131
 2002-12-24 00:04:01 +00:00
Chris Lattner
d9c6f2a6d3 Local register allocator is now stable enough for use, it passes all tests 
llvm-svn: 5094
 2002-12-17 02:51:15 +00:00
Chris Lattner
e0c25aaf99 Add mechanism to select register allocator to use 
llvm-svn: 5079
 2002-12-16 16:15:51 +00:00
Chris Lattner
0b9f0b5faf Rename createSimpleX86RegisterAllocator to createSimpleRegisterAllocator 
llvm-svn: 5071
 2002-12-16 14:38:13 +00:00
Misha Brukman
ca8eb8af18 Make function code generation printing debug-only. 
llvm-svn: 5023
 2002-12-13 13:16:14 +00:00
Brian Gaeke
4e2c30d894 brg 
InstSelectSimple.cpp: Add stub implementation of visitFreeInst.
 Add comments that mention how we are failing to implement malloc/free.
 Add initial implementation of visitAllocaInst.

X86TargetMachine.cpp: Include llvm/Transforms/Scalar.h.
 Add LowerAllocations pass before instruction selection.

jello/Makefile: Add scalaropts.a.

llvm-svn: 4994
 2002-12-13 06:46:31 +00:00
Misha Brukman
55cf6bfae4 Enable the register allocator pass. 
llvm-svn: 4829
 2002-11-22 22:45:07 +00:00
Chris Lattner
d7a855668d Print machine code after instruction selection 
llvm-svn: 4434
 2002-10-30 00:47:49 +00:00
Chris Lattner
02a3d837c2 Convert backend to use passes, implement X86TargetMachine 
llvm-svn: 4421
 2002-10-29 22:37:54 +00:00