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Commit Graph

2694 Commits

Author SHA1 Message Date
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
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