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2699 Commits

Author SHA1 Message Date
Chris Lattner
f5da16f2f6 Two fixes: 
* Only load incoming arguments into virtual registers once at the
    beginning of the function
  * Assign different virtual registers to each reference to constants/globals

llvm-svn: 5088
 2002-12-16 22:54:46 +00:00
Chris Lattner
9d64c1e53a Fix prolog/epilog in the presence of alloca 
llvm-svn: 5087
 2002-12-16 22:29:30 +00:00
Chris Lattner
2e17697e81 Make sure stack manipulation refers to ESP the right number of times 
llvm-svn: 5086
 2002-12-16 22:29:06 +00:00
Chris Lattner
de4d89ef9f Add some special cases to make common getelementptr cases easier to read/faster 
llvm-svn: 5084
 2002-12-16 19:32:50 +00:00
Chris Lattner
4576429b7c Finish implementation of alias list impl 
llvm-svn: 5083
 2002-12-16 19:31:48 +00:00
Chris Lattner
cdcde16ad0 * Fix a gross X86 hack that was intended to avoid allocating SP and BP 
* Implement register alias set support

llvm-svn: 5082
 2002-12-16 17:44:42 +00:00
Chris Lattner
0ede83ee56 Keep the stack frame aligned. 
llvm-svn: 5081
 2002-12-16 17:42:40 +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
d44868a709 Initial checkin of "local" register allocator. Bugs are still present. 
llvm-svn: 5078
 2002-12-16 16:15:28 +00:00
Chris Lattner
b833239d6b Try #2 to get alias set stuff to work 
llvm-svn: 5077
 2002-12-16 16:14:51 +00:00
Chris Lattner
eae93bdb93 Add comments 
llvm-svn: 5076
 2002-12-16 15:57:44 +00:00
Chris Lattner
fd065b6b1a Add info about register aliases, add prototype for createLocalRegisterAllocator 
llvm-svn: 5075
 2002-12-16 15:55:51 +00:00
Chris Lattner
b413ce63d5 Add info about register file aliasing 
llvm-svn: 5074
 2002-12-16 15:55:25 +00:00
Chris Lattner
e6ad4941fc Add information about register file aliasing 
llvm-svn: 5073
 2002-12-16 15:54:59 +00:00
Chris Lattner
68af8985f4 Add call clobber info 
llvm-svn: 5072
 2002-12-16 15:54:42 +00:00
Chris Lattner
566fb4c7b7 Rename createSimpleX86RegisterAllocator to createSimpleRegisterAllocator 
llvm-svn: 5071
 2002-12-16 14:38:13 +00:00
Chris Lattner
064dd4ef95 Rename createSimpleX86RegisterAllocator to createSimpleRegisterAllocator. 
Remvoe some dead code

llvm-svn: 5070
 2002-12-16 14:37:00 +00:00
Brian Gaeke
e4da1d5de6 brg 
Fix some bugs in use of MBB vs. BB and iterators that are invalidated before
we use them.

Reference targetClass by enum name, not by number.

llvm-svn: 5069
 2002-12-16 04:23:29 +00:00
Chris Lattner
93b0272717 Some simpliciations to the spill/reload interface 
llvm-svn: 5067
 2002-12-15 23:01:26 +00:00
Chris Lattner
6a2d7bef14 Simplify PHI node elimination significantly by doing it as a prepass to 
register allocation

llvm-svn: 5066
 2002-12-15 22:39:53 +00:00
Chris Lattner
4964e751cd Correct the setting of Def flags on registers that are modified! 
llvm-svn: 5065
 2002-12-15 22:38:47 +00:00
Chris Lattner
ebb82f7f96 Variety of small or trivial simplifications to the code, completely eliminated 
the dependence on PhysRegClassMap

llvm-svn: 5064
 2002-12-15 22:19:19 +00:00
Chris Lattner
370918a2db Remove unused savePhysRegToStack method 
llvm-svn: 5061
 2002-12-15 21:33:51 +00:00
Chris Lattner
35ceaa7322 Localize a map, remove another 
llvm-svn: 5060
 2002-12-15 21:24:30 +00:00
Chris Lattner
ea2d8ad746 Give passes nice names! 
llvm-svn: 5059
 2002-12-15 21:13:40 +00:00
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