Commit Graph

2732 Commits

Author SHA1 Message Date
Chris Lattner
e7d361d15a Use new reginfo interface
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5099 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-17 04:19:40 +00:00
Chris Lattner
79de6319b1 Update to use new interface for register info
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5098 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-17 04:19:17 +00:00
Chris Lattner
9208bbf5c9 New file
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5097 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-17 04:03:08 +00:00
Chris Lattner
86c69a6cbe Add prolog/epilog spills/reloads to counters
Move X86 specific alignment gunk to X86 files


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5096 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-17 03:16:10 +00:00
Chris Lattner
3bbe7cc51d Round number of bytes allocated on the stack up to a multiple of 4 so that the
stack remains aligned


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5095 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-17 03:15:26 +00:00
Chris Lattner
14322cd337 Local register allocator is now stable enough for use, it passes all tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5094 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-17 02:51:15 +00:00
Chris Lattner
ae64043737 Fix many bugs, regallocator now saves callee-save registers instead of target
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5093 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-17 02:50:10 +00:00
Chris Lattner
6c6cf873f3 Register allocator is responsible for spilling callee saved regs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5092 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-17 02:48:57 +00:00
Chris Lattner
3bd9409349 Build add instructions of the correct form!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5090 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 23:36:57 +00:00
Chris Lattner
14aa7fe238 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5088 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 22:54:46 +00:00
Chris Lattner
3fc14c2602 Fix prolog/epilog in the presence of alloca
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5087 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 22:29:30 +00:00
Chris Lattner
4863fe14de Make sure stack manipulation refers to ESP the right number of times
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5086 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 22:29:06 +00:00
Chris Lattner
8a307e8c63 Add some special cases to make common getelementptr cases easier to read/faster
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5084 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 19:32:50 +00:00
Chris Lattner
27177cb1c1 Finish implementation of alias list impl
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5083 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 19:31:48 +00:00
Chris Lattner
c21be922bf * Fix a gross X86 hack that was intended to avoid allocating SP and BP
* Implement register alias set support


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5082 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 17:44:42 +00:00
Chris Lattner
69c198863d Keep the stack frame aligned.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5081 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 17:42:40 +00:00
Chris Lattner
439a27ac42 Add mechanism to select register allocator to use
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5079 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 16:15:51 +00:00
Chris Lattner
b74e83c898 Initial checkin of "local" register allocator. Bugs are still present.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5078 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 16:15:28 +00:00
Chris Lattner
92aec04cd6 Try #2 to get alias set stuff to work
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5077 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 16:14:51 +00:00
Chris Lattner
1894dd6ca9 Add comments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5076 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 15:57:44 +00:00
Chris Lattner
c2fc7ea60b Add info about register aliases, add prototype for createLocalRegisterAllocator
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5075 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 15:55:51 +00:00
Chris Lattner
dfb0a541c7 Add info about register file aliasing
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5074 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 15:55:25 +00:00
Chris Lattner
1a49517a2c Add information about register file aliasing
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5073 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 15:54:59 +00:00
Chris Lattner
880eaa5985 Add call clobber info
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5072 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 15:54:42 +00:00
Chris Lattner
1a45626c4c Rename createSimpleX86RegisterAllocator to createSimpleRegisterAllocator
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5071 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 14:38:13 +00:00
Chris Lattner
1d62cea90b Rename createSimpleX86RegisterAllocator to createSimpleRegisterAllocator.
Remvoe some dead code


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5070 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 14:37:00 +00:00
Brian Gaeke
68b1edca76 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5069 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 04:23:29 +00:00
Chris Lattner
b167c04e62 Some simpliciations to the spill/reload interface
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5067 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 23:01:26 +00:00
Chris Lattner
8ed9eb5ca3 Simplify PHI node elimination significantly by doing it as a prepass to
register allocation


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5066 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 22:39:53 +00:00
Chris Lattner
f4b95d94e2 Correct the setting of Def flags on registers that are modified!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5065 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 22:38:47 +00:00
Chris Lattner
9f366d7ab6 Variety of small or trivial simplifications to the code, completely eliminated
the dependence on PhysRegClassMap


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5064 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 22:19:19 +00:00
Chris Lattner
f605055994 Remove unused savePhysRegToStack method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5061 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 21:33:51 +00:00
Chris Lattner
01b08c59b4 Localize a map, remove another
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5060 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 21:24:30 +00:00
Chris Lattner
f0eb7beb66 Give passes nice names!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5059 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 21:13:40 +00:00
Chris Lattner
8233e2fe01 Give simple reg allocator a nice Pass Name
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5058 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 21:13:12 +00:00
Chris Lattner
15f96db4d9 Add a big assert making sure 2 address instructions are formed right
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5057 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 21:02:20 +00:00
Chris Lattner
3f91ad7ba7 Fix a problem that occurs when PHI nodes have multiple entries for the same predecessor
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5055 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 20:48:03 +00:00
Chris Lattner
da7e453aac Grab bag of minor cleanups. Export some statistics about the number of
spills and reloads emitted


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5054 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 20:36:09 +00:00
Chris Lattner
2109f502d6 Implement printing of MBB arguments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5053 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 20:35:25 +00:00
Chris Lattner
198ab640bb Simplify interfaces used by regalloc to insert code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5052 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 20:06:35 +00:00
Chris Lattner
c2db1a95df * 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5051 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 19:51:14 +00:00
Chris Lattner
afe628c1d6 Changes to make new TargetRegisterClass interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5050 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 19:29:34 +00:00
Chris Lattner
9593fb1503 * Remove some unneccesary instance variables
* Make allocateStackSpaceFor only allocate the right amount of space


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5048 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 19:07:34 +00:00
Chris Lattner
439b76730d * Simplify TargetRegisterClass implementations
* Change regclass iterators to use an extra level of pointers


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5047 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 18:40:36 +00:00
Chris Lattner
dd444f9242 pull inverse reg class mapping into a class that is sharable and out of the
target register description classes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5045 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 18:38:59 +00:00
Chris Lattner
abe8dd592d Prune #includes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5044 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 18:19:24 +00:00
Chris Lattner
ad44bd99ff Remove extraneous #includes, perform FIXME
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5043 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 18:15:24 +00:00
Chris Lattner
197ff79a8c Fix bug: Assembler/2002-12-15-GlobalResolve.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5039 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 16:41:52 +00:00
Chris Lattner
8e637a9383 planes is not spelled with an O
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5037 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 16:20:23 +00:00
Chris Lattner
71c83728b4 Fix borkness with not using MachineBasicBlocks in PHI nodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5035 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-15 08:02:51 +00:00