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2745 Commits

Author SHA1 Message Date
Chris Lattner
fc1c705965 Fix compilation on gcc 2.96 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5116 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-23 23:46:55 +00:00
Chris Lattner
25f091fc61 Add definition for the bswap instruction 
*** FIX: the encoding of the SUB instruction


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5115 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-23 23:46:31 +00:00
Chris Lattner
facc9fb9ba Add support for the bswap instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5114 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-23 23:46:00 +00:00
Chris Lattner
e500864619 Fix compilation on GCC 2.96 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5113 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-23 23:44:04 +00:00
Chris Lattner
dbcda22bf3 Add support for isnan 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5111 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-20 04:18:13 +00:00
Chris Lattner
6eaa46956a Fix warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5109 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-20 04:13:28 +00:00
Chris Lattner
45a4399f88 CBW doesn't modify AL 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5108 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-20 04:13:11 +00:00
Chris Lattner
df642e1fd6 fix warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5107 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-20 04:12:48 +00:00
Chris Lattner
82bee0f2c8 * Fix several register aliasing bugs 
* Add a new option to eliminate spilling of registers that are only used
  within a basic block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5106 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-18 08:14:26 +00:00
Chris Lattner
89fab07abd Don't force setCC instructions into AL 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5104 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-18 01:44:31 +00:00
Chris Lattner
aed967cc9e Implicit defs/uses list may be empty. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5103 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-18 01:11:14 +00:00
Chris Lattner
b339223518 Add comments, switch uses/defs to match InstrInfo.def file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5102 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-18 01:05:54 +00:00
Chris Lattner
1445895e19 Add reg clobber list for direct calls 
Represent empty use/def list as a null pointer


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5101 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-18 01:05:31 +00:00
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