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54 Commits

Author SHA1 Message Date
Jakub Staszak
06dc0add14 Tablgen files for really simple instruction selector 
llvm-svn: 12714
 2004-04-06 19:34:00 +00:00
Chris Lattner
97e8b80649 The X86 backend no longer needs the select lowering pass. 
llvm-svn: 12578
 2004-03-31 22:03:46 +00:00
Chris Lattner
ff016bd6fe 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
87479998f2 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
0b913593ae make -print-machineinstrs work for both SparcV9 and X86 
llvm-svn: 12122
 2004-03-04 19:16:23 +00:00
Chris Lattner
7c05e5d4d8 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
e8f9647831 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
b755d35fd2 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
8e4aa43710 Add a new (hidden) option that is useful for profiling. 
llvm-svn: 11218
 2004-02-09 01:47:10 +00:00
Brian Gaeke
dcab84ecf1 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
c37577eb9f 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
1791047661 implement support for the intrinsic lowering functionality 
llvm-svn: 10629
 2003-12-28 09:47:19 +00:00
Alkis Evlogimenos
41bd8284e3 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
ef1bfa35d0 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
1cb1efedb3 Rip JIT specific stuff out of TargetMachine, as per PR176 
llvm-svn: 10542
 2003-12-20 01:22:19 +00:00
Alkis Evlogimenos
5ca15c8f5e 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
e9269b7cc5 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
d25f86d683 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
e060df5b2c Fix warnings building on sparc 
llvm-svn: 9758
 2003-11-06 21:30:05 +00:00
John Criswell
b402729b30 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
afbe8787cc Make replaceMachineCodeForFunction return void. 
llvm-svn: 9288
 2003-10-20 15:15:17 +00:00
Chris Lattner
fce0650cee Eliminate code for pointer size and endianness emulation. 
llvm-svn: 9281
 2003-10-20 04:11:23 +00:00
Brian Gaeke
821c0e653c 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
21797d71d9 Implement replaceMachineCodeForFunction() for x86. 
llvm-svn: 9204
 2003-10-17 18:27:46 +00:00
Chris Lattner
fc3f9605a7 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
a37b58ce09 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
42a09316bb Change llc command line for register allocators 
llvm-svn: 8815
 2003-10-02 06:13:19 +00:00
Alkis Evlogimenos
a50598c684 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
e3af981096 Added command line option for linear scan allocator 
llvm-svn: 8804
 2003-10-01 19:38:10 +00:00
Chris Lattner
f31d84d7c5 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
c5e9b1f3cd 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
ccafb6e504 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
3dc2860679 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
6488844c2e Factor shared code 
llvm-svn: 7600
 2003-08-05 16:34:44 +00:00
Chris Lattner
40cc4c1392 Rename function to be more consistent with filename 
llvm-svn: 7352
 2003-07-26 23:49:58 +00:00
Brian Gaeke
5674309dc1 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
7d145b44cc 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
bbe1aba425 Remove two fields from TargetData which are target specific. 
llvm-svn: 5963
 2003-04-26 20:11:09 +00:00
Chris Lattner
844b1148f4 Fix compatibility bug: X86 aligns doubles to 4 bytes, not 8! 
llvm-svn: 5935
 2003-04-25 06:05:57 +00:00
Chris Lattner
ec5f9a7c4f 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
ea424f3aff Rename -no-* to -disable-* 
llvm-svn: 5642
 2003-02-26 20:00:41 +00:00
Chris Lattner
013ad21206 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
41b715c939 * 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
c98a33844d * 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
31a733bd3a Free machine code 
llvm-svn: 5146
 2002-12-25 05:06:21 +00:00
Chris Lattner
886374c6bc 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
305d72e965 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
4d0ca4b442 Add mechanism to select register allocator to use 
llvm-svn: 5079
 2002-12-16 16:15:51 +00:00
Chris Lattner
566fb4c7b7 Rename createSimpleX86RegisterAllocator to createSimpleRegisterAllocator 
llvm-svn: 5071
 2002-12-16 14:38:13 +00:00
Misha Brukman
3587ffc7b1 Make function code generation printing debug-only. 
llvm-svn: 5023
 2002-12-13 13:16:14 +00:00