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31 Commits

Author SHA1 Message Date
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 9e75444c8b Handle frame offset due to return address pushed on the stack 
llvm-svn: 5319
 2003-01-15 22:57:35 +00:00
Chris Lattner 06e07162fc * Move frame and constant pool indexes to first argument of memory reference 
so we can put an offset in there as well...
* Fix long/ulong stuff

llvm-svn: 5231
 2003-01-13 00:50:33 +00:00
Chris Lattner 26c23467c5 Rename FunctionFrameInfo to MachineFrameInfo 
llvm-svn: 5201
 2002-12-28 21:08:28 +00:00
Chris Lattner 1d79b4ce86 *** Implement frame pointer elimination on X86! 
* Include contents of X86RegisterClasses.cpp into here
* Adjustments to register api to work with new frame manager
* Eliminate moveImm2Reg, getFramePointer, and getStackPointer
* Cleanup and simplify prolog/epilog code generation
* Prolog/epilog are MUCH more efficient now.

llvm-svn: 5186
 2002-12-28 20:32:28 +00:00
Chris Lattner dafa31658f New simpler spill interface 
llvm-svn: 5148
 2002-12-25 05:07:09 +00:00
Chris Lattner d8201972bf Fix compilation on gcc 2.96 
llvm-svn: 5116
 2002-12-23 23:46:55 +00:00
Chris Lattner 6e7c821dc0 Fix warning 
llvm-svn: 5109
 2002-12-20 04:13:28 +00:00
Chris Lattner 4cb8af96b3 Update to use new interface for register info 
llvm-svn: 5098
 2002-12-17 04:19:17 +00:00
Chris Lattner eaf58b03b2 Round number of bytes allocated on the stack up to a multiple of 4 so that the 
stack remains aligned

llvm-svn: 5095
 2002-12-17 03:15:26 +00:00
Chris Lattner 5afbc4c387 Register allocator is responsible for spilling callee saved regs 
llvm-svn: 5092
 2002-12-17 02:48:57 +00:00
Chris Lattner c87fcde854 Fix prolog/epilog in the presence of alloca 
llvm-svn: 5087
 2002-12-16 22:29:30 +00:00
Chris Lattner 6b5ca53493 Finish implementation of alias list impl 
llvm-svn: 5083
 2002-12-16 19:31:48 +00:00
Chris Lattner d44d25323d Try #2 to get alias set stuff to work 
llvm-svn: 5077
 2002-12-16 16:14:51 +00:00
Chris Lattner 4cf76c23e8 Add info about register file aliasing 
llvm-svn: 5074
 2002-12-16 15:55:25 +00:00
Chris Lattner 3c1b59ca59 Correct the setting of Def flags on registers that are modified! 
llvm-svn: 5065
 2002-12-15 22:38:47 +00:00
Chris Lattner e2533336f5 Simplify interfaces used by regalloc to insert code 
llvm-svn: 5052
 2002-12-15 20:06:35 +00:00
Misha Brukman 3374ec7c1b Cleaned up the code: factored out switch/case into a separate function, put 
constants in an array for quick lookup. Stole the idea from elsewhere in
Jello.

llvm-svn: 5017
 2002-12-13 12:00:06 +00:00
Misha Brukman 121ae7d3a7 Treat longs as ints => pretend they're all 32-bit values and squeeze them into 
32-bit registers.

llvm-svn: 5008
 2002-12-13 10:43:09 +00:00
Misha Brukman 78401cbb3c Added moveReg2Reg() and moveImm2Reg() to accomodate moving data around due to 
PHI nodes.

llvm-svn: 5001
 2002-12-13 09:54:12 +00:00
Misha Brukman 862f3ef8bc Moves now select correct opcode based on the data size. 
llvm-svn: 4981
 2002-12-13 04:24:53 +00:00
Misha Brukman 83e62f14dd Implemented functions for emitting prologues and epilogues; 
removed EBP from the list of callee-saved registers (it isn't one).

llvm-svn: 4929
 2002-12-04 23:57:03 +00:00
Misha Brukman 1af9bebcda storeReg2RegOffset() and loadRegOffset2Reg() now take the iterator by value 
instead of by reference, since they return the modified iterator.

llvm-svn: 4914
 2002-12-04 17:14:13 +00:00
Misha Brukman 0d28502c32 Moved buildReg2RegClassMap() into from X86RegisterInfo to MRegisterInfo, since 
it is target-independent.

llvm-svn: 4911
 2002-12-04 16:47:04 +00:00
Misha Brukman d9522256d3 Added support for callee- and caller-save registers. 
llvm-svn: 4897
 2002-12-03 23:11:21 +00:00
Misha Brukman aa15563510 Fix order of operands on a store from reg to [reg+offset]. 
llvm-svn: 4857
 2002-12-02 21:10:35 +00:00
Misha Brukman 5014e38273 Oops. Got the MOVrm and MOVmr mixed up. Fixed. We can now print out 
instructions correctly.

llvm-svn: 4830
 2002-11-22 23:15:27 +00:00
Misha Brukman bde217d7a9 Added methods to read/write values to stack in .h, fixed implementation in 
.cpp to return the iterator correctly.

llvm-svn: 4827
 2002-11-22 22:43:47 +00:00
Misha Brukman 53d2de923a Add definitions for function headers from MRegisterInfo.h: 
Some functions are in X86RegisterInfo.cpp, others, because of the data they
need, are in X86RegisterClasses.cpp, which also defines some register classes:
byte, short, and int.

llvm-svn: 4784
 2002-11-20 18:59:43 +00:00
Chris Lattner d92fb0058b Initial checkin of X86 backend. 
We can instruction select exactly one instruction 'ret void'.  Wow.

llvm-svn: 4284
 2002-10-25 22:55:53 +00:00