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2928 Commits

Author SHA1 Message Date
Chris Lattner
886374c6bc Changes to allow for a configurable target machine that allows big endian and/or long pointer operation 
llvm-svn: 5131
 2002-12-24 00:04:01 +00:00
Chris Lattner
16378bf522 Changes to compile with GCC 2.96 
Changes to support configurable pointer size and endianness

llvm-svn: 5130
 2002-12-24 00:03:11 +00:00
Chris Lattner
4fecd98cb0 Sparc is not little endian 
llvm-svn: 5129
 2002-12-24 00:02:38 +00:00
Chris Lattner
f67bcaf831 Initial checkin 
llvm-svn: 5127
 2002-12-24 00:01:22 +00:00
Chris Lattner
5fe4097f52 Initial checkin of new LLI with JIT compiler 
llvm-svn: 5126
 2002-12-24 00:01:05 +00:00
Chris Lattner
42057e4d2a Substantial changes to refactor LLI to incorporate both the Jello JIT and 
the traditional LLI interpreter

llvm-svn: 5125
 2002-12-23 23:59:41 +00:00
Chris Lattner
2af84f79e3 New files for miscompilation detection 
llvm-svn: 5120
 2002-12-23 23:50:16 +00:00
Chris Lattner
8e628685d9 Fix compilation on gcc 2.96 
llvm-svn: 5116
 2002-12-23 23:46:55 +00:00
Chris Lattner
285f1458f0 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
9e13907a4f Add support for the bswap instruction 
llvm-svn: 5114
 2002-12-23 23:46:00 +00:00
Chris Lattner
7abe5199b3 Fix compilation on GCC 2.96 
llvm-svn: 5113
 2002-12-23 23:44:04 +00:00
Chris Lattner
6b8e873886 Add support for isnan 
llvm-svn: 5111
 2002-12-20 04:18:13 +00:00
Chris Lattner
2dc1b58c11 Fix warning 
llvm-svn: 5109
 2002-12-20 04:13:28 +00:00
Chris Lattner
f8876bb77d CBW doesn't modify AL 
llvm-svn: 5108
 2002-12-20 04:13:11 +00:00
Chris Lattner
d838414ec1 fix warning 
llvm-svn: 5107
 2002-12-20 04:12:48 +00:00
Chris Lattner
5ddc4b5f94 * 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
c21fd773b8 Don't force setCC instructions into AL 
llvm-svn: 5104
 2002-12-18 01:44:31 +00:00
Chris Lattner
bb2e7ec2b1 Implicit defs/uses list may be empty. 
llvm-svn: 5103
 2002-12-18 01:11:14 +00:00
Chris Lattner
b1c74bb421 Add comments, switch uses/defs to match InstrInfo.def file 
llvm-svn: 5102
 2002-12-18 01:05:54 +00:00
Chris Lattner
0607e84008 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
c6ac5c70c6 Use new reginfo interface 
llvm-svn: 5099
 2002-12-17 04:19:40 +00:00
Chris Lattner
0b617b0e1d Update to use new interface for register info 
llvm-svn: 5098
 2002-12-17 04:19:17 +00:00
Chris Lattner
cbc794db30 New file 
llvm-svn: 5097
 2002-12-17 04:03:08 +00:00
Chris Lattner
e66a7e80c3 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
dbca3de031 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
305d72e965 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
8dd15fd26c 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
4a60d804c2 Register allocator is responsible for spilling callee saved regs 
llvm-svn: 5092
 2002-12-17 02:48:57 +00:00
Chris Lattner
c7e6dd2341 Build add instructions of the correct form! 
llvm-svn: 5090
 2002-12-16 23:36:57 +00:00
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
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
Chris Lattner
2c2a5f128e Implement cast bool to X 
llvm-svn: 5012
 2002-12-13 11:31:59 +00:00
Brian Gaeke
b101130d19 Rename all BMI MachineBasicBlock operands to MBB. 
Try to mess around with emitGEPOperation's elementSizeReg to make it work,
again.

llvm-svn: 5011
 2002-12-13 11:22:48 +00:00
Chris Lattner
cad7e99ea1 Finish up iterator stuph 
llvm-svn: 5009
 2002-12-13 10:50:40 +00:00
Misha Brukman
b6fb990276 Treat longs as ints => pretend they're all 32-bit values and squeeze them into 
32-bit registers.

llvm-svn: 5008
 2002-12-13 10:43:09 +00:00
Misha Brukman
e694e406a4 Fixed bug with running out of registers. Also, reinstated namespace which 
disappeared during the last checkin.

llvm-svn: 5007
 2002-12-13 10:42:31 +00:00
Chris Lattner
416a9ca8f1 Code gen phi's correctly 
llvm-svn: 5004
 2002-12-13 10:09:43 +00:00
Chris Lattner
505ace489e Print X86 PHI nodes in a sane manner 
llvm-svn: 5003
 2002-12-13 09:59:26 +00:00
Misha Brukman
af40b6adcd This should handle register allocating PHI nodes. 
llvm-svn: 5002
 2002-12-13 09:54:36 +00:00
Misha Brukman
fb02408496 Added moveReg2Reg() and moveImm2Reg() to accomodate moving data around due to 
PHI nodes.

llvm-svn: 5001
 2002-12-13 09:54:12 +00:00
Brian Gaeke
34ad176df5 lib/Target/X86/InstSelectSimple.cpp: Start counting arguments with 2, 
because arguments start two stack slots off of EBP. Break out of the
 for loop once the argument is found. Increment the counter at the end
 of the loop instead of the beginning. Use addRegOffset and compute
 the scale * index part at compile time instead of using the fancy
 load instruction. Just because an instruction set has wacky addressing
 modes doesn't mean we ought to use them (at least, if you believe Dave
 Patterson).

lib/Target/X86/X86InstrBuilder.h: Add some comments.

test/Regression/Jello/test-loadstore.ll:  Let main return int 0.

llvm-svn: 4999
 2002-12-13 09:28:50 +00:00
Brian Gaeke
5da234a1d7 InstSelectSimple.cpp: Give promote32 a comment. Add initial 
implementation of getReg() for arguments.

MachineCodeEmitter.cpp: Fix using EBP with index, scale and no
 displacement (whew!) due to Chris.

Printer.cpp: Fix printing out index and scale in memory references.

llvm-svn: 4998
 2002-12-13 07:56:18 +00:00
Chris Lattner
9e7b73b55f Implement getelementptr constant exprs 
Implement ConstantPointerRefs
Treat long/ulongs as if they were integers.  A hack, but an effective one

llvm-svn: 4995
 2002-12-13 06:56:29 +00:00
Brian Gaeke
641c6fa60a brg 
InstSelectSimple.cpp: Add stub implementation of visitFreeInst.
 Add comments that mention how we are failing to implement malloc/free.
 Add initial implementation of visitAllocaInst.

X86TargetMachine.cpp: Include llvm/Transforms/Scalar.h.
 Add LowerAllocations pass before instruction selection.

jello/Makefile: Add scalaropts.a.

llvm-svn: 4994
 2002-12-13 06:46:31 +00:00
Chris Lattner
62454d83f0 Emit the right form of mod/rm mod field 
llvm-svn: 4986
 2002-12-13 05:05:05 +00:00
Chris Lattner
7ec625a157 Nicify a bit 
llvm-svn: 4985
 2002-12-13 05:04:37 +00:00
Chris Lattner
4cc9894c71 Fix encoding of CBW instruction 
llvm-svn: 4983
 2002-12-13 04:41:31 +00:00
Misha Brukman
e5a8dcc695 Start allocating stack space at [ebp-4] to not overwrite the return address. 
Also make all loads & stores 4-byte aligned for performance. ;)

llvm-svn: 4982
 2002-12-13 04:34:02 +00:00
Misha Brukman
20c9c61c6d Moves now select correct opcode based on the data size. 
llvm-svn: 4981
 2002-12-13 04:24:53 +00:00
Chris Lattner
10f305cec7 Remove extranous #include 
llvm-svn: 4980
 2002-12-13 04:12:24 +00:00
Chris Lattner
723ca2522d Rename MemArg* to Arg* 
llvm-svn: 4979
 2002-12-13 03:51:55 +00:00
Chris Lattner
b698cd8236 Make mem size an assert 
Add mem size flags to all instructions using an imm

llvm-svn: 4978
 2002-12-13 03:50:13 +00:00
Misha Brukman
6a5788bb6f This is supposed to provide correct size for datatypes. Supposedly. 
llvm-svn: 4977
 2002-12-13 02:13:15 +00:00
Misha Brukman
12bec4ecef Take advantage of our knowledge of 2-address X86 instructions and 
register-allocated them appropriately.

llvm-svn: 4976
 2002-12-12 23:20:31 +00:00
Misha Brukman
bf2857eb5c Added the flag to mark instructions which are really 2-address instructions in 
X86, but would be 3-address in any normail architecture.

llvm-svn: 4974
 2002-12-12 23:19:11 +00:00
Brian Gaeke
9b38597288 This checkin is brought to you by the brian gaeke allnighter fund. 
(lib/Target/X86) InstSelectSimple.cpp:
 Include llvm/DerivedTypes.h and iostream.
 Refactor visitMul out into a wrapper around doMultiply(), so that we
  can do multiplications on temporary values when we are doing
  getelementptrs.
 Refactor part of getReg out into makeAnotherReg, so that we can create
  registers willy-nilly to hold temporary values, when we are doing
  getelementptrs.
 Add stub implementations of visitMallocInst and visitAllocaInst.
 Add initial implementation of visitGetElementPtrInst.
 In copyConstantToRegister:
  We throw a *lot* of our asserts here. So, when we want to throw an
   assert, print out to stderr whatever expr or whatever constant made
   us barf.
  Support copying ConstantPointerNull to register, using a move immediate
   of zero.
 Rename FLDr4 and FLDr8 to FLDr32 and FLDr64, so that they match the meanings
  of the numbers in the other instruction names. All uses modified.
 Teach visitCallInst to extract byte- and short-class return values
  from subregs of EAX.  Add a FIXME note about how we would do it for
  float-class return values.
 Add a FIXME note about how we would cast float to int and back.

X86InstrInfo.def:
 Rename FLDr4 and FLDr8 to FLDr32 and FLDr64, so that they match the meanings
  of the numbers in the other instruction names. All uses modified.

(tools/jello) GlobalVars.cpp:
 Include iostream.
 If we have to emit a floating-point constant to memory, gamble and use
  the same method as for ints.
 If we have to emit a ConstantPointerNull to memory, try using a "void *"
  and "NULL".
 Otherwise, if we are going to throw an assert, print out whatever constant
  made us barf, first.

llvm-svn: 4973
 2002-12-12 15:33:40 +00:00
Misha Brukman
1264a03c8a 'graph' is spelled without a 'c'. 
Also added Statistic counters for NoAlias and MayAlias.

llvm-svn: 4972
 2002-12-12 05:34:10 +00:00
Chris Lattner
8d4b4b020e Remove #includes 
llvm-svn: 4968
 2002-12-12 03:47:27 +00:00
Vikram S. Adve
6c46fba526 External routines used to identify Cilk operations inserted by the 
parallelization pass.

llvm-svn: 4965
 2002-12-10 13:08:48 +00:00
Vikram S. Adve
a9966ae8ad This file implements the function DemoteRegToStack(), which takes a 
virtual register computed by an Instruction& X and replaces it with
a slot in the stack frame, allocated via alloca.

llvm-svn: 4964
 2002-12-10 13:07:58 +00:00
Vikram S. Adve
849346ee23 This file implements a pass that automatically parallelizes a program, 
using the Cilk multi-threaded runtime system to execute parallel code.
The current version inserts too many sync() operations in the program
because it does not attempt to optimize their placement.

llvm-svn: 4962
 2002-12-10 00:43:34 +00:00
Vikram S. Adve
c9617fde54 Iterator that enumerates the ProgramDependenceGraph (PDG) for a function, 
i.e., enumerates all data and control dependences for the function.

llvm-svn: 4958
 2002-12-08 14:13:19 +00:00
Vikram S. Adve
90bc3110b6 An explicit representation of dependence graphs, and a pass that 
computes a dependence graph for data dependences on memory locations
using interprocedural Mod/Ref information.

llvm-svn: 4957
 2002-12-08 13:26:29 +00:00
Chris Lattner
883827db1c Namespacify more 
llvm-svn: 4956
 2002-12-08 06:01:34 +00:00
Chris Lattner
f525e2f95e Add support to count the number of dynamic instructions executed by LLI 
llvm-svn: 4955
 2002-12-08 05:51:08 +00:00
Chris Lattner
5f4d7d2801 Add total instruction, bb, & function counts 
llvm-svn: 4954
 2002-12-07 23:24:24 +00:00
Chris Lattner
fc15b7a661 Fix bug that was bugging bugpoint 
llvm-svn: 4953
 2002-12-07 21:27:16 +00:00
Chris Lattner
be53e88459 Remove dead code 
llvm-svn: 4952
 2002-12-07 18:42:13 +00:00
Vikram S. Adve
773fe59c79 Two bug fixes: 
(1) Make entries for Constant values in the ScalarMap.
(2) Set MOD bit for the node pointed to by the
    argument of a free instruction.

llvm-svn: 4948
 2002-12-06 21:17:10 +00:00
Vikram S. Adve
cb7daf77e8 Fix several related bugs in DSNode::mergeWith() caused by the 
fact that the incoming nodes may be merged away at intermediate
steps.  Use an extra level of indirection via DSNodeHandles
to track the nodes being merged.  All this now happens in a
static helper function MergeNodes().

llvm-svn: 4947
 2002-12-06 21:15:21 +00:00
Brian Gaeke
250d5a3e95 Implement a lot of cast functionality (no FP or 64) 
llvm-svn: 4944
 2002-12-06 10:49:33 +00:00
Chris Lattner
6c9d57c590 Fix bug: 2002-12-05-MissedConstProp.ll pointed out by Casey Carter 
llvm-svn: 4935
 2002-12-05 22:41:53 +00:00
Vikram S. Adve
ab3a68a7c3 Cute bug fix: when moving links from N to this, some links could have 
been missed if node *this got merged away due to recursive merging!
Also, links were not moved correctly if a node is collapsed.

llvm-svn: 4933
 2002-12-05 17:17:26 +00:00
Brian Gaeke
dbc34a2a95 Target/X86/Printer.cpp: Add sizePtr function, and use it instead of 
" <SIZE> PTR " string when emitting assembly.

Target/X86/X86InstrInfo.def: Tidy up a bit:
 Squashed everything down to 118 chars wide, wrapping lines so that
 comment is at the same point on each line. Rename "NoImpRegs" as
 "NoIR". (most instructions have NoImpRegs twice on a line, so this
 saves 10 columns).

 Also, annotate various instructions with flags for size of memory operand.
  (MemArg16, MemArg32, MemArg64, etc.)

Target/X86/X86InstrInfo.h: Define flags for size of memory operand.
 (MemArg16, MemArg32, MemArg64, etc.)

llvm-svn: 4932
 2002-12-05 08:30:40 +00:00
Misha Brukman
8f56246d62 Added code generation for function prologues and epilogues. 
llvm-svn: 4930
 2002-12-04 23:58:08 +00:00
Misha Brukman
7dc6877ce2 Implemented functions for emitting prologues and epilogues; 
removed EBP from the list of callee-saved registers (it isn't one).

llvm-svn: 4929
 2002-12-04 23:57:03 +00:00
Misha Brukman
e93c7f9d32 Added push and pop instructions. 
llvm-svn: 4928
 2002-12-04 23:56:26 +00:00
Chris Lattner
70aa4e41ce Fix handling of function calls that return void 
llvm-svn: 4925
 2002-12-04 23:50:28 +00:00
Chris Lattner
b71d7b4dab Implement initial support for return values from call instructions 
llvm-svn: 4924
 2002-12-04 23:45:28 +00:00
Misha Brukman
566bac5ec1 Fun arithmetic with iterators aimed at fixing a bug: inserting instructions 
after the *current* instruction while keeping the iterator in the same
'logical' place.

llvm-svn: 4923
 2002-12-04 19:24:45 +00:00
Misha Brukman
f8634130dc Adjust the stack pointer after a function call, proportional to the number of 
arguments pushed onto the stack.

llvm-svn: 4922
 2002-12-04 19:22:53 +00:00
Misha Brukman
cf80ad35f3 Added instructions to add/subtract imm32 to/from a reg32. 
llvm-svn: 4921
 2002-12-04 19:15:22 +00:00
Chris Lattner
96edaabdb2 Fix bogus assertion failures 
llvm-svn: 4919
 2002-12-04 17:32:52 +00:00
Chris Lattner
b538ae0dba Avoid bad assertion 
llvm-svn: 4918
 2002-12-04 17:28:40 +00:00
Chris Lattner
feeb16616e Remove think-o assertion 
llvm-svn: 4917
 2002-12-04 17:18:30 +00:00
Chris Lattner
e21cfc9b6c Avoid crashing on Arguments, just silently miscompile 
llvm-svn: 4916
 2002-12-04 17:15:34 +00:00
Misha Brukman
101076f586 storeReg2RegOffset() and loadRegOffset2Reg() now take the iterator by value 
instead of by reference, since they return the modified iterator.

llvm-svn: 4914
 2002-12-04 17:14:13 +00:00
Misha Brukman
6e1c4851ea Moved buildReg2RegClassMap() into from X86RegisterInfo to MRegisterInfo, since 
it is target-independent.

llvm-svn: 4911
 2002-12-04 16:47:04 +00:00
Chris Lattner
29f4c79239 Add a "Lazy Function Resolution in Jello" section 
Remove some todo's

llvm-svn: 4910
 2002-12-04 16:12:54 +00:00
Chris Lattner
6c1a85e870 Fix a bug I introduced in a previous change 
llvm-svn: 4909
 2002-12-04 06:56:56 +00:00
Chris Lattner
73ac28801e Add support for referencing global variables/functions 
llvm-svn: 4907
 2002-12-04 06:45:19 +00:00
Chris Lattner
994984de43 Print out direct global references 
llvm-svn: 4906
 2002-12-04 06:44:41 +00:00
Misha Brukman
f13126a427 This should fix the bug seen with some registers not being allocated 
correctly: skipping instructions by incorrectly incrementing the pointer.

Also adds support for building a reg-to-regclass map, and splits the function
for saving register to stack into two, one suitable for virtual registers
(which also assigns it a physical register) and one for simply storing back
physical registers.

llvm-svn: 4898
 2002-12-03 23:15:19 +00:00
Misha Brukman
5639a6279e Added support for callee- and caller-save registers. 
llvm-svn: 4897
 2002-12-03 23:11:21 +00:00
Chris Lattner
8cadeb99ab Fix broken ret opcode, grr... 
llvm-svn: 4895
 2002-12-03 22:50:02 +00:00
Chris Lattner
47478b4dce Checkin debug implementation of MCE 
llvm-svn: 4893
 2002-12-03 20:56:42 +00:00
Chris Lattner
a31be4e958 Fix instsel for calls 
llvm-svn: 4891
 2002-12-03 20:30:12 +00:00
Chris Lattner
18b9a192e1 Simplify code 
llvm-svn: 4886
 2002-12-03 19:40:16 +00:00
Chris Lattner
dd9d97436d Fix big bug introduced with symbol table changes 
llvm-svn: 4885
 2002-12-03 18:32:30 +00:00
Chris Lattner
5629544811 Fix the build 
llvm-svn: 4884
 2002-12-03 18:15:59 +00:00
Brian Gaeke
c850694f49 brg 
Add support for cast ... to bool in visitCastInst (it's a start, anyways...)

llvm-svn: 4883
 2002-12-03 07:36:03 +00:00
Chris Lattner
5f0614914e Split the machine code emitter completely out of the printer 
llvm-svn: 4882
 2002-12-03 06:34:06 +00:00
Chris Lattner
99e7784512 * Move information about Implicit Defs/Uses into X86InstrInfo.def. 
* Expose information about implicit defs/uses of register through the
  MachineInstrInfo.h file.

llvm-svn: 4877
 2002-12-03 05:42:53 +00:00
Chris Lattner
56c48a37a8 Initialize implicit uses/defs fields for sparc backend to empty list 
llvm-svn: 4876
 2002-12-03 05:41:54 +00:00
Brian Gaeke
48759a6af9 brg 
X86Implicit.cpp, X86Implicit.h: New files.
InstSelectSimple.cpp: Add some clarifications in visitCallInst comments.

llvm-svn: 4874
 2002-12-03 00:51:09 +00:00
Chris Lattner
e66d3e90ce More support for machine code emission: raw instructions 
llvm-svn: 4872
 2002-12-02 21:56:18 +00:00
Chris Lattner
c1d0d21002 Expose explicit type 
llvm-svn: 4871
 2002-12-02 21:50:41 +00:00
Chris Lattner
f48a330fd8 Start implementing MachineCodeEmitter 
llvm-svn: 4870
 2002-12-02 21:44:34 +00:00
Chris Lattner
cd65711437 Eliminate OtherFrm 
llvm-svn: 4868
 2002-12-02 21:40:58 +00:00
Chris Lattner
e8640c05cc Remove comment 
Remove handling of OtherFrm

llvm-svn: 4867
 2002-12-02 21:40:46 +00:00
Chris Lattner
8227eea4fe Initial support for machine code emission 
llvm-svn: 4866
 2002-12-02 21:24:12 +00:00
Misha Brukman
cbaebd813a Ignore generated files Lexer.cpp and llvmAsmParser.* 
llvm-svn: 4861
 2002-12-02 21:14:54 +00:00
Misha Brukman
f776547336 * Abstracted out stack space allocation into its own function 
* Added saving of register values to the stack

llvm-svn: 4858
 2002-12-02 21:11:58 +00:00
Misha Brukman
0b310e3359 Fix order of operands on a store from reg to [reg+offset]. 
llvm-svn: 4857
 2002-12-02 21:10:35 +00:00
Chris Lattner
89de3f1fc5 Add rawfrm flags 
llvm-svn: 4841
 2002-12-01 23:25:59 +00:00
Chris Lattner
d7ae75d381 Don't add implicit regs 
llvm-svn: 4840
 2002-12-01 23:24:58 +00:00
Brian Gaeke
1700fefdeb brg 
InstSelectSimple.cpp: Refactor out conversion of byte, short -> int
  from visitReturnInst() to new method, promote32().
 Use it in both visitReturnInst() and visitCallInst().

llvm-svn: 4839
 2002-11-30 11:57:28 +00:00
Brian Gaeke
b6fc905124 brg 
InstSelectSimple.cpp: First draft of visitCallInst method, handling
 int/float args.
X86InstrInfo.def: Add entries for CALL with 32-bit pc relative arg, and
 PUSH with 32-bit reg arg.

llvm-svn: 4838
 2002-11-29 12:01:58 +00:00
Vikram S. Adve
b0371788d9 Fix logical error in TD pass: we should clear Mod/Ref bits of each caller 
before inlining their graphs into a function.  To support this,
added flags to CloneFlags to strip/keep Mod/Ref bits.

llvm-svn: 4836
 2002-11-27 17:41:13 +00:00
Vikram S. Adve
8788221a72 (1) Bug fix that was causing nodes with dangling references to be freed. 
We run removeDeadNodes() on the TD graph up front before using it.
(2) Major enhancement to printing of results: now we list the actual objects
    that are mod/ref instead of just printing the bit vectors.
Also an important bug fix in TDDataStructures pass (no change here):
clear Mod/Ref bits of callers before inlining into a function.

llvm-svn: 4833
 2002-11-27 17:37:46 +00:00
Brian Gaeke
d944e15946 brg 
InstSelectSimple.cpp: Add some comments that say what I'm going to do for
 calls and casts.

llvm-svn: 4832
 2002-11-26 10:43:30 +00:00
Vikram S. Adve
7bbda247e2 Keep global nodes in each DS Graph (by forcing them to be marked live). 
llvm-svn: 4831
 2002-11-25 18:21:25 +00:00
Misha Brukman
3ba057b8c4 Oops. Got the MOVrm and MOVmr mixed up. Fixed. We can now print out 
instructions correctly.

llvm-svn: 4830
 2002-11-22 23:15:27 +00:00
Misha Brukman
a301022017 Enable the register allocator pass. 
llvm-svn: 4829
 2002-11-22 22:45:07 +00:00
Misha Brukman
021bf57248 A simple (spilling) register allocator. 
llvm-svn: 4828
 2002-11-22 22:44:32 +00:00
Misha Brukman
02c0acabb9 Added methods to read/write values to stack in .h, fixed implementation in 
.cpp to return the iterator correctly.

llvm-svn: 4827
 2002-11-22 22:43:47 +00:00
Misha Brukman
23d923ff18 Added -*- C++ -*- mode to the comments. 
llvm-svn: 4826
 2002-11-22 22:42:50 +00:00
Misha Brukman
e43fe85591 Add a simple way to add memory locations of format [reg+offset] 
llvm-svn: 4825
 2002-11-22 22:42:12 +00:00
Brian Gaeke
2d771c7b5f lib/Target/X86/InstSelectSimple.cpp: Add visitCallInst, visitCastInst. 
llvm-svn: 4821
 2002-11-22 11:07:01 +00:00
Chris Lattner
fe85dd13d2 Handle cmp Reg, 0 correctly 
llvm-svn: 4819
 2002-11-21 23:30:00 +00:00
Chris Lattner
6021c0d120 Printing support for more stuff 
llvm-svn: 4818
 2002-11-21 22:49:46 +00:00
Chris Lattner
a147d38780 Don't add implicit operands 
llvm-svn: 4817
 2002-11-21 22:49:20 +00:00
Chris Lattner
de36dd3a36 Fix off by one bug 
llvm-svn: 4816
 2002-11-21 22:48:15 +00:00
Chris Lattner
de6d53e549 Add fixme 
llvm-svn: 4815
 2002-11-21 22:48:01 +00:00
Chris Lattner
93c5c3ff44 Minor code cleanups 
llvm-svn: 4814
 2002-11-21 21:04:50 +00:00
Chris Lattner
af8c29b47d Implement printing of store instructions 
llvm-svn: 4813
 2002-11-21 21:03:39 +00:00
Chris Lattner
918179475a The big change here is to handle printing/emission of X86II::MRMSrcMem 
instructions.  Right now the only users are load instructions, and Misha's
spill code

llvm-svn: 4812
 2002-11-21 20:44:15 +00:00
Chris Lattner
2112a6d7b8 Remove implicit information from instruction selector 
llvm-svn: 4811
 2002-11-21 18:54:29 +00:00
Chris Lattner
c9e824d750 Add printing information for MUL and DIV 
llvm-svn: 4810
 2002-11-21 18:54:14 +00:00
Chris Lattner
d2207d5464 Fix a bug that prevented compilation of multiple functions 
llvm-svn: 4809
 2002-11-21 17:26:58 +00:00
Chris Lattner
fab5468d86 Remove opcode information for instructions that are completely defined now 
llvm-svn: 4805
 2002-11-21 17:12:55 +00:00
Chris Lattner
d432d2f75e Add printing support for sahf & setcc 
llvm-svn: 4804
 2002-11-21 17:10:57 +00:00
Chris Lattner
766d0da035 Add printing support for /0 /1 type instructions 
llvm-svn: 4803
 2002-11-21 17:09:01 +00:00
Chris Lattner
9f9d6aef08 Add support for /0 /1, etc type instructions 
llvm-svn: 4802
 2002-11-21 17:08:49 +00:00
Chris Lattner
5a5648e935 User defined operators are not supposed to live beyond the lifetime of the 
pass.  Detect and flag them.

llvm-svn: 4801
 2002-11-21 16:54:22 +00:00
Chris Lattner
b1b5855551 Rename the SetCC X86 instructions to reflect the fact that they are the 
register versions

llvm-svn: 4800
 2002-11-21 16:19:42 +00:00
Chris Lattner
d6236d8100 Simplify setcc code a bit 
llvm-svn: 4799
 2002-11-21 15:52:38 +00:00
Chris Lattner
2f9488d131 Support Registers of the form (B8+ rd) for example 
llvm-svn: 4798
 2002-11-21 02:00:20 +00:00
Chris Lattner
32bfb6a115 Dont' set flags 
llvm-svn: 4797
 2002-11-21 01:59:50 +00:00
Chris Lattner
aa8aa73902 Implement printing more, implement opcode output more 
llvm-svn: 4796
 2002-11-21 01:33:44 +00:00
Chris Lattner
53a9c9aac6 Huge diff do to reindeinting comments. 
Basically just adds OpSize flags for instructions that need them.

llvm-svn: 4795
 2002-11-21 01:33:28 +00:00
Chris Lattner
92a3c2c77d Add new prefix flag 
llvm-svn: 4794
 2002-11-21 01:32:55 +00:00
Chris Lattner
228180c2ae Print another class of instructions correctly, giving us: xorl EDX, EDX 
for example.

llvm-svn: 4793
 2002-11-21 00:30:01 +00:00
Misha Brukman
5d89dbcf41 Booleans are types too. And they get stored in bytes. And InstructionSelection 
doesn't assert fail. And everyone's happy. Yay!

llvm-svn: 4792
 2002-11-21 00:25:56 +00:00
Chris Lattner
6aa0ec26d5 Initial checkin of Module cloning support stuff 
llvm-svn: 4788
 2002-11-20 20:47:41 +00:00
Chris Lattner
26052792dd X86 target builds fine now 
llvm-svn: 4786
 2002-11-20 20:17:03 +00:00
Chris Lattner
58944216ff Fix symbol table problem 
llvm-svn: 4785
 2002-11-20 19:32:43 +00:00
Misha Brukman
96283090dc Add definitions for function headers from MRegisterInfo.h: 
Some functions are in X86RegisterInfo.cpp, others, because of the data they
need, are in X86RegisterClasses.cpp, which also defines some register classes:
byte, short, and int.

llvm-svn: 4784
 2002-11-20 18:59:43 +00:00
Misha Brukman
42f51b24e1 Check not only for MO_VirtualRegister, but MO_MachineRegister as well when 
printing out assembly. After all, we want the real thing too.

llvm-svn: 4783
 2002-11-20 18:56:41 +00:00
Misha Brukman
2bf32bfea1 Initialize the SSARegMap. 
llvm-svn: 4782
 2002-11-20 18:55:27 +00:00
Chris Lattner
2f7f21cd13 Don't build X86 target yet 
llvm-svn: 4780
 2002-11-20 18:37:37 +00:00
Chris Lattner
b5027095e5 - Eliminated the deferred symbol table stuff in Module & Function, it really 
wasn't an optimization and it was causing lots of bugs.

llvm-svn: 4779
 2002-11-20 18:36:02 +00:00
Chris Lattner
ec0df74910 Fix minor bugs 
llvm-svn: 4778
 2002-11-20 18:32:31 +00:00
Chris Lattner
46b6e30fef Eliminate the concept of a deferred symbol table. The optimization really isn't, 
and it causes obscure bugs to show up in passes.

llvm-svn: 4777
 2002-11-20 18:07:48 +00:00
Misha Brukman
505ca2e419 Add mapping in MachineFunction from SSA regs to Register Classes. Also, 
uncovered a bug where registers were not being put in a map if they were not
found...

llvm-svn: 4776
 2002-11-20 00:58:23 +00:00
Misha Brukman
8d3bef2e1b Sigh. Fixed some speling. 
llvm-svn: 4775
 2002-11-20 00:56:42 +00:00
Misha Brukman
00d8343760 Thanks to the R8, R16, and R32 macros, I can now deal with registers that 
belong to different register classes easier.

llvm-svn: 4773
 2002-11-20 00:47:40 +00:00
Chris Lattner
62629300d3 Remove unneccesary #include 
llvm-svn: 4772
 2002-11-19 23:12:53 +00:00
Chris Lattner
4053d2dd12 Implement the CloneFunction function 
llvm-svn: 4771
 2002-11-19 23:12:22 +00:00
Chris Lattner
e5a05ec13b Minor changes to cloning interface 
llvm-svn: 4770
 2002-11-19 22:54:01 +00:00
Chris Lattner
aff50cfe1d Fix two fixmes: integrate with inlining, and document 
llvm-svn: 4769
 2002-11-19 22:04:49 +00:00
Chris Lattner
27bf5916fb Rework inline pass to use cloning infrastructure to do the dirty work 
llvm-svn: 4766
 2002-11-19 21:54:07 +00:00
Chris Lattner
ccb8790bc4 Start using the new function cloning header 
llvm-svn: 4764
 2002-11-19 20:59:41 +00:00
Chris Lattner
7e4c65114b Move MutatStructTypes.h out of IPO 
llvm-svn: 4762
 2002-11-19 20:49:40 +00:00
Chris Lattner
17da38496e Rename CloneFunction.h to Cloning.h 
llvm-svn: 4760
 2002-11-19 20:08:24 +00:00
Chris Lattner
adea9960ab Move the function extractor pass from tools/extract into lib/Xform/IPO 
llvm-svn: 4759
 2002-11-19 18:42:59 +00:00
Chris Lattner
bd2cbecb05 Add a new Module::getNamedFunction method 
llvm-svn: 4758
 2002-11-19 18:41:44 +00:00
Brian Gaeke
49acd3c0ba Brian Gaeke says: 
lib/Target/X86/InstSelectSimple.cpp: Add a little something to
 visitBranchInst which supports conditional branches.
lib/Target/X86/X86InstrInfo.def: Add defs of JNE, JE, CMPri8

llvm-svn: 4755
 2002-11-19 09:08:47 +00:00
Nick Hildenbrandt
cd79631bb1 *** empty log message *** 
llvm-svn: 4754
 2002-11-18 22:21:52 +00:00
Chris Lattner
8118f6db93 Add peak memory usage measurement capability 
Add (currently disabled) faciility to try to filter out pool allocation overhead from memory usage stats

llvm-svn: 4753
 2002-11-18 21:47:09 +00:00
Chris Lattner
ad3955d6a5 Add peak memory usage measurement stuff 
Add structure padding optimizations

llvm-svn: 4749
 2002-11-18 21:44:46 +00:00
Chris Lattner
f179a40a00 Add peak memory usage support 
llvm-svn: 4748
 2002-11-18 21:44:19 +00:00
Chris Lattner
25a8814af0 Add stats 
llvm-svn: 4747
 2002-11-18 21:42:45 +00:00
Nick Hildenbrandt
d97c216a21 *** empty log message *** 
llvm-svn: 4745
 2002-11-18 20:55:50 +00:00
Chris Lattner
cd1f56fc36 Start trying to print instructions more correctly. For now we also print out the opcode for each instruction as well. 
llvm-svn: 4743
 2002-11-18 06:56:51 +00:00
Chris Lattner
8301d751ee Expose base opcode 
llvm-svn: 4742
 2002-11-18 06:56:24 +00:00
Chris Lattner
54bb9d64a3 Start to add more information to instr.def 
llvm-svn: 4741
 2002-11-18 05:37:11 +00:00
Chris Lattner
e921369cf7 Add instruction annotation about whether it has a 0x0F opcode prefix 
llvm-svn: 4740
 2002-11-18 01:59:28 +00:00
Chris Lattner
acf38562df Add more void flags 
llvm-svn: 4739
 2002-11-18 01:37:48 +00:00
Chris Lattner
7a67557e29 Set the void flag on instructions that should get it 
llvm-svn: 4738
 2002-11-18 01:34:36 +00:00
Chris Lattner
3afc487fba Print is const! 
llvm-svn: 4737
 2002-11-17 23:22:13 +00:00
Chris Lattner
f0a1010d2c Pass on a targetmachine 
llvm-svn: 4736
 2002-11-17 23:22:03 +00:00
Chris Lattner
a7d7b16161 Arrange to have a TargetMachine available in X86InstrInfo::print 
llvm-svn: 4734
 2002-11-17 23:20:37 +00:00
Chris Lattner
700e8f6a01 Wow, I'm incapable of the simplest things today... 
llvm-svn: 4732
 2002-11-17 23:05:21 +00:00
Chris Lattner
1cd77c9933 Rename registers to follow the intel style of all caps 
llvm-svn: 4731
 2002-11-17 23:03:46 +00:00
Chris Lattner
0bf125c617 Fix misleading indentation 
llvm-svn: 4730
 2002-11-17 22:57:23 +00:00
Chris Lattner
5374a3be97 Reorganize printing interface a bit 
llvm-svn: 4728
 2002-11-17 22:53:13 +00:00