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f499e065be
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2674 Commits

Author SHA1 Message Date
Chris Lattner
f499e065be Give simple reg allocator a nice Pass Name 
llvm-svn: 5058
 2002-12-15 21:13:12 +00:00
Chris Lattner
da3e75b117 Add a big assert making sure 2 address instructions are formed right 
llvm-svn: 5057
 2002-12-15 21:02:20 +00:00
Chris Lattner
e8acf72d80 Fix a problem that occurs when PHI nodes have multiple entries for the same predecessor 
llvm-svn: 5055
 2002-12-15 20:48:03 +00:00
Chris Lattner
234abaea18 Grab bag of minor cleanups. Export some statistics about the number of 
spills and reloads emitted

llvm-svn: 5054
 2002-12-15 20:36:09 +00:00
Chris Lattner
dd307412c4 Implement printing of MBB arguments 
llvm-svn: 5053
 2002-12-15 20:35:25 +00:00
Chris Lattner
4214ac384a Simplify interfaces used by regalloc to insert code 
llvm-svn: 5052
 2002-12-15 20:06:35 +00:00
Chris Lattner
351dc9af16 * Simplify code a bit by breaking the PHI node handling stuff out into a seperate 
function from normal regalloc code
* Make the regalloc for a block a function instead of part of runOnMachineBB, which
  makes it easier to see what's going on in runOnMBB.

llvm-svn: 5051
 2002-12-15 19:51:14 +00:00
Chris Lattner
ce23fdeee2 Changes to make new TargetRegisterClass interface. 
llvm-svn: 5050
 2002-12-15 19:29:34 +00:00
Chris Lattner
6c5c2a58ee * Remove some unneccesary instance variables 
* Make allocateStackSpaceFor only allocate the right amount of space

llvm-svn: 5048
 2002-12-15 19:07:34 +00:00
Chris Lattner
caa325a559 * Simplify TargetRegisterClass implementations 
* Change regclass iterators to use an extra level of pointers

llvm-svn: 5047
 2002-12-15 18:40:36 +00:00
Chris Lattner
c43cb38245 pull inverse reg class mapping into a class that is sharable and out of the 
target register description classes.

llvm-svn: 5045
 2002-12-15 18:38:59 +00:00
Chris Lattner
2c20e950be Prune #includes 
llvm-svn: 5044
 2002-12-15 18:19:24 +00:00
Chris Lattner
aab9196e79 Remove extraneous #includes, perform FIXME 
llvm-svn: 5043
 2002-12-15 18:15:24 +00:00
Chris Lattner
7a43d882e2 Fix bug: Assembler/2002-12-15-GlobalResolve.ll 
llvm-svn: 5039
 2002-12-15 16:41:52 +00:00
Chris Lattner
05eed92679 planes is not spelled with an O 
llvm-svn: 5037
 2002-12-15 16:20:23 +00:00
Chris Lattner
41ad5c9aff Fix borkness with not using MachineBasicBlocks in PHI nodes 
llvm-svn: 5035
 2002-12-15 08:02:51 +00:00
Chris Lattner
50d99540cf Add support to cast from a bool type 
Add support for boolean constants
add getClassB method

llvm-svn: 5034
 2002-12-15 08:02:15 +00:00
Chris Lattner
534876a78c Use MachineOperand::isFoo methods instead of our own global functions 
llvm-svn: 5033
 2002-12-15 08:01:39 +00:00
Chris Lattner
61d594690a Fix a huge performance problem in reassociate by introducing a 
rank map cache for instruction ranks

llvm-svn: 5030
 2002-12-15 03:56:00 +00:00
Chris Lattner
18fe81719d Minor changes: 
* Reword comment to make more clear
  * Don't print out BB's after modification made
  * Don't delete and new an instruction when we need to move something, just move it.

llvm-svn: 5029
 2002-12-15 03:49:50 +00:00
Chris Lattner
bd4d66147f Implement indirect function calls 
llvm-svn: 5024
 2002-12-13 14:13:27 +00:00
Misha Brukman
3587ffc7b1 Make function code generation printing debug-only. 
llvm-svn: 5023
 2002-12-13 13:16:14 +00:00
Chris Lattner
c7db3e855f Fix bork in doMultiply 
llvm-svn: 5021
 2002-12-13 13:07:42 +00:00
Chris Lattner
7d5d4f7ab4 Add sanity checks 
llvm-svn: 5020
 2002-12-13 13:04:04 +00:00
Misha Brukman
de680081ab Fixed a bug where moves due to phis were being neglected. 
llvm-svn: 5019
 2002-12-13 12:33:31 +00:00
Misha Brukman
2f2cf00a9f 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
1f57df5fad Need to insert all moves due to PHI nodes before *ALL* jumps in a predecessor 
basic block, as there could be multiple.

llvm-svn: 5016
 2002-12-13 11:55:59 +00:00
Chris Lattner
de2f97c5e6 Insert phi code at top of block 
llvm-svn: 5015
 2002-12-13 11:52:34 +00:00
Brian Gaeke
460fe53768 lib/Target/X86/InstSelectSimple.cpp: 
The MachineBasicBlock variable name patrol hereby fines Chris Lattner
one bag of nachos, for shadowing global names while his license to do so
was under suspension.

llvm-svn: 5014
 2002-12-13 11:39:18 +00:00
Misha Brukman
0bfbbc73f2 This should be more correct: invalidates physical registers that are used in 
an instruction to avoid using them to allocate to other virtual registers.

llvm-svn: 5013
 2002-12-13 11:33:22 +00:00
Chris Lattner
2c2a5f128e Implement cast bool to X 
llvm-svn: 5012
 2002-12-13 11:31:59 +00:00
Brian Gaeke
b101130d19 Rename all BMI MachineBasicBlock operands to MBB. 
Try to mess around with emitGEPOperation's elementSizeReg to make it work,
again.

llvm-svn: 5011
 2002-12-13 11:22:48 +00:00
Chris Lattner
cad7e99ea1 Finish up iterator stuph 
llvm-svn: 5009
 2002-12-13 10:50:40 +00:00
Misha Brukman
b6fb990276 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
e694e406a4 Fixed bug with running out of registers. Also, reinstated namespace which 
disappeared during the last checkin.

llvm-svn: 5007
 2002-12-13 10:42:31 +00:00
Chris Lattner
416a9ca8f1 Code gen phi's correctly 
llvm-svn: 5004
 2002-12-13 10:09:43 +00:00
Chris Lattner
505ace489e Print X86 PHI nodes in a sane manner 
llvm-svn: 5003
 2002-12-13 09:59:26 +00:00
Misha Brukman
af40b6adcd This should handle register allocating PHI nodes. 
llvm-svn: 5002
 2002-12-13 09:54:36 +00:00
Misha Brukman
fb02408496 Added moveReg2Reg() and moveImm2Reg() to accomodate moving data around due to 
PHI nodes.

llvm-svn: 5001
 2002-12-13 09:54:12 +00:00
Brian Gaeke
34ad176df5 lib/Target/X86/InstSelectSimple.cpp: Start counting arguments with 2, 
because arguments start two stack slots off of EBP. Break out of the
 for loop once the argument is found. Increment the counter at the end
 of the loop instead of the beginning. Use addRegOffset and compute
 the scale * index part at compile time instead of using the fancy
 load instruction. Just because an instruction set has wacky addressing
 modes doesn't mean we ought to use them (at least, if you believe Dave
 Patterson).

lib/Target/X86/X86InstrBuilder.h: Add some comments.

test/Regression/Jello/test-loadstore.ll:  Let main return int 0.

llvm-svn: 4999
 2002-12-13 09:28:50 +00:00
Brian Gaeke
5da234a1d7 InstSelectSimple.cpp: Give promote32 a comment. Add initial 
implementation of getReg() for arguments.

MachineCodeEmitter.cpp: Fix using EBP with index, scale and no
 displacement (whew!) due to Chris.

Printer.cpp: Fix printing out index and scale in memory references.

llvm-svn: 4998
 2002-12-13 07:56:18 +00:00
Chris Lattner
9e7b73b55f Implement getelementptr constant exprs 
Implement ConstantPointerRefs
Treat long/ulongs as if they were integers.  A hack, but an effective one

llvm-svn: 4995
 2002-12-13 06:56:29 +00:00
Brian Gaeke
641c6fa60a 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
Chris Lattner
62454d83f0 Emit the right form of mod/rm mod field 
llvm-svn: 4986
 2002-12-13 05:05:05 +00:00
Chris Lattner
7ec625a157 Nicify a bit 
llvm-svn: 4985
 2002-12-13 05:04:37 +00:00
Chris Lattner
4cc9894c71 Fix encoding of CBW instruction 
llvm-svn: 4983
 2002-12-13 04:41:31 +00:00
Misha Brukman
e5a8dcc695 Start allocating stack space at [ebp-4] to not overwrite the return address. 
Also make all loads & stores 4-byte aligned for performance. ;)

llvm-svn: 4982
 2002-12-13 04:34:02 +00:00
Misha Brukman
20c9c61c6d Moves now select correct opcode based on the data size. 
llvm-svn: 4981
 2002-12-13 04:24:53 +00:00
Chris Lattner
10f305cec7 Remove extranous #include 
llvm-svn: 4980
 2002-12-13 04:12:24 +00:00
Chris Lattner
723ca2522d Rename MemArg* to Arg* 
llvm-svn: 4979
 2002-12-13 03:51:55 +00:00