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2722 Commits

Author SHA1 Message Date
Chris Lattner de4aa4cf8c New files for miscompilation detection 
llvm-svn: 5120
 2002-12-23 23:50:16 +00:00
Chris Lattner d8201972bf Fix compilation on gcc 2.96 
llvm-svn: 5116
 2002-12-23 23:46:55 +00:00
Chris Lattner 871abd8187 Add definition for the bswap instruction 
*** FIX: the encoding of the SUB instruction

llvm-svn: 5115
 2002-12-23 23:46:31 +00:00
Chris Lattner e218f7924c Add support for the bswap instruction 
llvm-svn: 5114
 2002-12-23 23:46:00 +00:00
Chris Lattner 095eac8109 Fix compilation on GCC 2.96 
llvm-svn: 5113
 2002-12-23 23:44:04 +00:00
Chris Lattner 677671d1af Add support for isnan 
llvm-svn: 5111
 2002-12-20 04:18:13 +00:00
Chris Lattner 6e7c821dc0 Fix warning 
llvm-svn: 5109
 2002-12-20 04:13:28 +00:00
Chris Lattner 5526b21e93 CBW doesn't modify AL 
llvm-svn: 5108
 2002-12-20 04:13:11 +00:00
Chris Lattner 67e555d1ec fix warning 
llvm-svn: 5107
 2002-12-20 04:12:48 +00:00
Chris Lattner d4627093de * Fix several register aliasing bugs 
* Add a new option to eliminate spilling of registers that are only used
  within a basic block.

llvm-svn: 5106
 2002-12-18 08:14:26 +00:00
Chris Lattner b437b7de1a Don't force setCC instructions into AL 
llvm-svn: 5104
 2002-12-18 01:44:31 +00:00
Chris Lattner dc451c6d27 Implicit defs/uses list may be empty. 
llvm-svn: 5103
 2002-12-18 01:11:14 +00:00
Chris Lattner b54343a64f Add comments, switch uses/defs to match InstrInfo.def file 
llvm-svn: 5102
 2002-12-18 01:05:54 +00:00
Chris Lattner fc9af85395 Add reg clobber list for direct calls 
Represent empty use/def list as a null pointer

llvm-svn: 5101
 2002-12-18 01:05:31 +00:00
Chris Lattner ac5f3b3ed3 Use new reginfo interface 
llvm-svn: 5099
 2002-12-17 04:19:40 +00:00
Chris Lattner 4cb8af96b3 Update to use new interface for register info 
llvm-svn: 5098
 2002-12-17 04:19:17 +00:00
Chris Lattner 0eece84186 New file 
llvm-svn: 5097
 2002-12-17 04:03:08 +00:00
Chris Lattner 0ea32b8dd3 Add prolog/epilog spills/reloads to counters 
Move X86 specific alignment gunk to X86 files

llvm-svn: 5096
 2002-12-17 03:16:10 +00:00
Chris Lattner eaf58b03b2 Round number of bytes allocated on the stack up to a multiple of 4 so that the 
stack remains aligned

llvm-svn: 5095
 2002-12-17 03:15:26 +00:00
Chris Lattner d9c6f2a6d3 Local register allocator is now stable enough for use, it passes all tests 
llvm-svn: 5094
 2002-12-17 02:51:15 +00:00
Chris Lattner 4664bd5798 Fix many bugs, regallocator now saves callee-save registers instead of target 
llvm-svn: 5093
 2002-12-17 02:50:10 +00:00
Chris Lattner 5afbc4c387 Register allocator is responsible for spilling callee saved regs 
llvm-svn: 5092
 2002-12-17 02:48:57 +00:00
Chris Lattner 2e6f17f136 Build add instructions of the correct form! 
llvm-svn: 5090
 2002-12-16 23:36:57 +00:00
Chris Lattner e92fb346d3 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 c87fcde854 Fix prolog/epilog in the presence of alloca 
llvm-svn: 5087
 2002-12-16 22:29:30 +00:00
Chris Lattner e92f1bb011 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 5c59014a1b 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 6b5ca53493 Finish implementation of alias list impl 
llvm-svn: 5083
 2002-12-16 19:31:48 +00:00
Chris Lattner 0129b86d55 * 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 1d84f0a461 Keep the stack frame aligned. 
llvm-svn: 5081
 2002-12-16 17:42:40 +00:00
Chris Lattner e0c25aaf99 Add mechanism to select register allocator to use 
llvm-svn: 5079
 2002-12-16 16:15:51 +00:00
Chris Lattner 101b8cd9b6 Initial checkin of "local" register allocator. Bugs are still present. 
llvm-svn: 5078
 2002-12-16 16:15:28 +00:00
Chris Lattner d44d25323d Try #2 to get alias set stuff to work 
llvm-svn: 5077
 2002-12-16 16:14:51 +00:00
Chris Lattner 9b83781030 Add comments 
llvm-svn: 5076
 2002-12-16 15:57:44 +00:00
Chris Lattner 36d6f4a303 Add info about register aliases, add prototype for createLocalRegisterAllocator 
llvm-svn: 5075
 2002-12-16 15:55:51 +00:00
Chris Lattner 4cf76c23e8 Add info about register file aliasing 
llvm-svn: 5074
 2002-12-16 15:55:25 +00:00
Chris Lattner 855b784523 Add information about register file aliasing 
llvm-svn: 5073
 2002-12-16 15:54:59 +00:00
Chris Lattner e5bbc24516 Add call clobber info 
llvm-svn: 5072
 2002-12-16 15:54:42 +00:00
Chris Lattner 0b9f0b5faf Rename createSimpleX86RegisterAllocator to createSimpleRegisterAllocator 
llvm-svn: 5071
 2002-12-16 14:38:13 +00:00
Chris Lattner c63d63a7c7 Rename createSimpleX86RegisterAllocator to createSimpleRegisterAllocator. 
Remvoe some dead code

llvm-svn: 5070
 2002-12-16 14:37:00 +00:00
Brian Gaeke 6ebe959530 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 bc1e6700eb Some simpliciations to the spill/reload interface 
llvm-svn: 5067
 2002-12-15 23:01:26 +00:00
Chris Lattner 4e560ee65b 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 3c1b59ca59 Correct the setting of Def flags on registers that are modified! 
llvm-svn: 5065
 2002-12-15 22:38:47 +00:00
Chris Lattner 292083aaf5 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 2af545d034 Remove unused savePhysRegToStack method 
llvm-svn: 5061
 2002-12-15 21:33:51 +00:00
Chris Lattner ed594b6b20 Localize a map, remove another 
llvm-svn: 5060
 2002-12-15 21:24:30 +00:00
Chris Lattner d06650ade1 Give passes nice names! 
llvm-svn: 5059
 2002-12-15 21:13:40 +00:00
Chris Lattner 1499e5a92c Give simple reg allocator a nice Pass Name 
llvm-svn: 5058
 2002-12-15 21:13:12 +00:00
Chris Lattner 2979a85984 Add a big assert making sure 2 address instructions are formed right 
llvm-svn: 5057
 2002-12-15 21:02:20 +00:00