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812 Commits

Author SHA1 Message Date
Chris Lattner
4576429b7c Finish implementation of alias list impl 
llvm-svn: 5083
 2002-12-16 19:31:48 +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
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
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
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
ea2d8ad746 Give passes nice names! 
llvm-svn: 5059
 2002-12-15 21:13:40 +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
ce23fdeee2 Changes to make new TargetRegisterClass interface. 
llvm-svn: 5050
 2002-12-15 19:29:34 +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
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
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
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
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
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
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
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
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
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
Brian Gaeke
250d5a3e95 Implement a lot of cast functionality (no FP or 64) 
llvm-svn: 4944
 2002-12-06 10:49:33 +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
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
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
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
a31be4e958 Fix instsel for calls 
llvm-svn: 4891
 2002-12-03 20:30:12 +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
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
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
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
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
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
26052792dd X86 target builds fine now 
llvm-svn: 4786
 2002-11-20 20:17:03 +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
Chris Lattner
2f7f21cd13 Don't build X86 target yet 
llvm-svn: 4780
 2002-11-20 18:37:37 +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
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
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
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
Chris Lattner
a55e8dba9b Add default implementation of printing interface 
llvm-svn: 4727
 2002-11-17 22:53:03 +00:00
Chris Lattner
970ae6d569 Fix minor detail 
llvm-svn: 4725
 2002-11-17 22:33:26 +00:00
Chris Lattner
72e99c8344 Fix Mul/Div clobbers 
llvm-svn: 4718
 2002-11-17 21:56:38 +00:00
Chris Lattner
dcb6f1dbf9 Fix a few typos, implement load/store 
llvm-svn: 4716
 2002-11-17 21:11:55 +00:00
Chris Lattner
06066e17c3 Add functions to buld X86 specific constructs 
llvm-svn: 4714
 2002-11-17 21:03:35 +00:00
Chris Lattner
5e21732045 Add information about memory index representation 
llvm-svn: 4712
 2002-11-17 20:33:26 +00:00
Chris Lattner
99b5e2f073 Add load/store instructions 
llvm-svn: 4711
 2002-11-17 20:33:12 +00:00
Chris Lattner
fb67938381 Switch visitRet to use getClass() 
llvm-svn: 4710
 2002-11-17 20:07:45 +00:00
Brian Gaeke
492e05ba01 include/llvm/CodeGen/MachineInstrBuilder.h: Add addClobber() inline 
convenience method.  Fix typo in comment.
lib/Target/X86/InstSelectSimple.cpp: Explicitly specify some implicit uses.
 Use MOVZX/MOVSX instead of MOV instructions with sign extend instructions.
 Take out LEAVE instructions.
 32-bit IDIV and DIV use CDQ, not CWQ (CWQ is a typo).
 Fix typo in comment and remove some FIXME comments.
lib/Target/X86/Printer.cpp: Include X86InstrInfo.h and llvm/Function.h.
 Add some simple code to Printer::runOnFunction to iterate over
  MachineBasicBlocks and call X86InstrInfo::print().
lib/Target/X86/X86InstrInfo.def: Make some more instructions with
 implicit defs "Void".  Add more sign/zero extending "move" insns
 (movsx, movzx).
lib/Target/X86/X86RegisterInfo.def: Add EFLAGS as a register.

llvm-svn: 4707
 2002-11-14 22:32:30 +00:00
Brian Gaeke
8cfe5d95f1 InstSelectSimple.cpp: (visitReturnInst) Add return instructions with return 
values.
X86InstrInfo.def: add LEAVE instruction.

llvm-svn: 4691
 2002-11-11 19:37:09 +00:00
Brian Gaeke
100510d2a8 Add instruction selection code and tests for setcc instructions 
llvm-svn: 4603
 2002-11-07 17:59:21 +00:00
Vikram S. Adve
51aa205bd1 Remove a nasty little semi-colon someone introduced which 
prevented any machine instrs from being printed!

llvm-svn: 4557
 2002-11-06 00:34:26 +00:00
Chris Lattner
79296d7609 Implement signed and unsigned division and remainder 
llvm-svn: 4508
 2002-11-02 20:54:46 +00:00
Chris Lattner
234cc2848a Implement multiply operator 
llvm-svn: 4506
 2002-11-02 20:28:58 +00:00
Chris Lattner
efa2b8226f * Implement subtract 
* Merge add code into logical code

llvm-svn: 4503
 2002-11-02 20:13:22 +00:00
Chris Lattner
5d1648c792 shuffle code around a bit, implement and, or, xor 
llvm-svn: 4502
 2002-11-02 20:04:26 +00:00
Chris Lattner
45000f0eb7 Add PHI node support, add comment for branch function 
llvm-svn: 4500
 2002-11-02 19:45:49 +00:00
Chris Lattner
d4010481a7 Implement unconditional branching support 
llvm-svn: 4498
 2002-11-02 19:27:56 +00:00
Chris Lattner
2634141328 * Fix nonconstant shift case 
* Turn table into 2d table

llvm-svn: 4496
 2002-11-02 01:41:55 +00:00
Chris Lattner
14ce86f5b0 Use a more table driven approach to handling types. Seems to simplify the 
code a bit

llvm-svn: 4493
 2002-11-02 01:15:18 +00:00
Chris Lattner
ef1d6548bb Make switch statements denser, but only because of the follow-on patch 
llvm-svn: 4492
 2002-11-02 00:49:56 +00:00
Chris Lattner
b3e08ace0c * Remove dead variable 
* Shift amount is always guaranteed to be 8 bits

llvm-svn: 4491
 2002-11-02 00:44:25 +00:00
Brian Gaeke
2ad8a9cf8b InstSelectSimple.cpp: Include llvm/iOther.h for ShiftInst. 
Add ISel::visitShiftInst() to instruction select shift instructions.
 Add a comment in visitAdd about how to do 64 bit adds.

X86InstrInfo.def: Add register-to-register move opcodes and shift opcodes.

llvm-svn: 4477
 2002-10-31 23:03:59 +00:00
Chris Lattner
dbf49d6266 Reassociate pass now works 
llvm-svn: 4473
 2002-10-31 17:16:18 +00:00
Vikram S. Adve
913883dd6e In getID(), don't call getValidSymbolName to mangle external names! 
llvm-svn: 4451
 2002-10-30 20:16:38 +00:00
Chris Lattner
47bbeeac43 Add lots more info 
llvm-svn: 4450
 2002-10-30 06:04:46 +00:00
Chris Lattner
cbbc96bd8d Make sure to set the destination register correctly 
llvm-svn: 4444
 2002-10-30 01:49:01 +00:00
Chris Lattner
d18210e53f Set the destination register field based on the target specific flags 
llvm-svn: 4442
 2002-10-30 01:15:31 +00:00
Chris Lattner
80f1f696e8 Add flag to specify when no value is produced by an instruction 
llvm-svn: 4441
 2002-10-30 01:09:34 +00:00
Chris Lattner
9e8fab4aa1 Sparc backend doesn't use target specific flags yet 
llvm-svn: 4440
 2002-10-30 01:07:12 +00:00
Chris Lattner
a8069b87b3 Implement the new optional getRegisterInfo 
llvm-svn: 4437
 2002-10-30 00:56:18 +00:00
Chris Lattner
faa5c82486 Print machine code after instruction selection 
llvm-svn: 4434
 2002-10-30 00:47:49 +00:00
Chris Lattner
40d5ff97c1 Make sure to pass the LLVM basic block in 
llvm-svn: 4433
 2002-10-30 00:47:40 +00:00
Chris Lattner
4352ba0640 Construct annotation, to make sure it's attached to function 
llvm-svn: 4429
 2002-10-29 23:40:58 +00:00
Chris Lattner
d3b57a0084 Convert backend to use passes, implement X86TargetMachine 
llvm-svn: 4421
 2002-10-29 22:37:54 +00:00
Chris Lattner
5e881d4c19 These are no longer virtual methods 
llvm-svn: 4420
 2002-10-29 22:01:44 +00:00
Chris Lattner
5d798b7887 * Privatize the TargetName 
* Move optSizeForSubWordData to TargetData
* Remove unused fields

llvm-svn: 4417
 2002-10-29 21:48:17 +00:00
Chris Lattner
94fb0d4b03 Implement findOptimalStorageSize a bit more generally 
llvm-svn: 4416
 2002-10-29 21:47:50 +00:00
Chris Lattner
eec571dce8 Allow TargetMachine to refuse static code gen 
llvm-svn: 4415
 2002-10-29 21:12:46 +00:00
Chris Lattner
82479f668c Rename X86InstructionInfo to X86InstrInfo 
llvm-svn: 4413
 2002-10-29 21:05:24 +00:00
Chris Lattner
0518ad4aea Minor renaming 
llvm-svn: 4410
 2002-10-29 20:48:56 +00:00
Chris Lattner
bc44fbfd6d Remove unneccesary #includes 
llvm-svn: 4408
 2002-10-29 20:47:46 +00:00
Chris Lattner
d589e36f4e Rename Sparc.h to TargetMachineImpls.h 
llvm-svn: 4407
 2002-10-29 20:47:26 +00:00
Chris Lattner
a1ab3b1636 Reenable X86 backend, even though it doesn't do much, at least it compiles 
llvm-svn: 4404
 2002-10-29 20:29:34 +00:00
Vikram S. Adve
fa70a60209 Bug fix: align size for dynamic allocas according to stack pointer 
alignment restrictions.  This is incomplete for one case.

llvm-svn: 4397
 2002-10-29 19:37:31 +00:00
Chris Lattner
af52d6564a Switch to generating machineinstr's instead of MInstructions 
llvm-svn: 4396
 2002-10-29 17:43:55 +00:00
Chris Lattner
483afe2221 Be compatible with sparc backend 
llvm-svn: 4395
 2002-10-29 17:43:38 +00:00
Chris Lattner
9e3867d6d3 Implement MachineInstrInfo interface 
llvm-svn: 4394
 2002-10-29 17:43:19 +00:00
Chris Lattner
f963781fcb Switch to different flag set 
llvm-svn: 4393
 2002-10-29 17:42:40 +00:00
Chris Lattner
79caf1109b Move TargetInstrDescriptors to MachineInstrInfo.cpp 
llvm-svn: 4391
 2002-10-29 17:37:48 +00:00
Chris Lattner
1a53fc24c7 *** empty log message *** 
llvm-svn: 4390
 2002-10-29 17:35:41 +00:00
Chris Lattner
e185af9a93 MachineInstrInfo doesn't need a TargetMachine 
llvm-svn: 4372
 2002-10-29 15:45:20 +00:00
Chris Lattner
dfc584443d Don't build X86 target until it builds properly again 
llvm-svn: 4369
 2002-10-28 23:56:41 +00:00
Chris Lattner
75d561d6f9 Seperate code out of TargetMachine into MachineInstrInfo 
llvm-svn: 4368
 2002-10-28 23:55:33 +00:00
Chris Lattner
152b53fc64 Initial stab at MachineInstr'ication 
llvm-svn: 4367
 2002-10-28 23:55:19 +00:00
Chris Lattner
f262fc83e2 Use BuildMI instead of explicit code. 
llvm-svn: 4362
 2002-10-28 21:43:57 +00:00
Chris Lattner
566b2147f9 Remove all traces of the "Opcode Mask" field in the MachineInstr class 
llvm-svn: 4359
 2002-10-28 21:17:20 +00:00
Chris Lattner
51efa81c85 Fix minor bug 
llvm-svn: 4355
 2002-10-28 20:11:17 +00:00
Chris Lattner
02d7156e35 Don't pass default args 
llvm-svn: 4354
 2002-10-28 20:10:56 +00:00
Misha Brukman
c4be791be2 Fixed spelling and grammar. 
llvm-svn: 4353
 2002-10-28 20:01:52 +00:00
Misha Brukman
6f3b1a31a1 Rewrote uses of deprecated `MachineFunction::get(BasicBlock *BB)'. 
llvm-svn: 4352
 2002-10-28 20:01:13 +00:00
Misha Brukman
f9d06cfc80 Replaced uses of deprecated `MachineFunction::get(BasicBlock *BB)'. 
llvm-svn: 4351
 2002-10-28 20:00:31 +00:00
Chris Lattner
8ce9d60bc0 Don't bother passing in default value 
llvm-svn: 4347
 2002-10-28 19:46:25 +00:00
Chris Lattner
9a346a4ded Fixes to work with updated RegAlloc 
llvm-svn: 4345
 2002-10-28 19:32:07 +00:00
Chris Lattner
dce9493440 Make sched class unsigned 
llvm-svn: 4336
 2002-10-28 04:59:43 +00:00
Chris Lattner
e309cdbc95 Rename the redundant MachineOperand::getOperandType() to MachineOperand::getType() 
llvm-svn: 4331
 2002-10-28 04:45:29 +00:00
Chris Lattner
df1d87f5f3 *** empty log message *** 
llvm-svn: 4323
 2002-10-28 02:01:37 +00:00
Chris Lattner
b8c6acfbc0 Rename MachineCodeForBasicBlock to MachineBasicBlock 
llvm-svn: 4318
 2002-10-28 01:41:47 +00:00
Chris Lattner
33b00d8186 Move machine code generation/destruction passes out of Sparc.cpp because 
they are generic

llvm-svn: 4310
 2002-10-28 01:12:41 +00:00
Chris Lattner
e15e3807a1 Move addPassesToEmitAssembly from TargetMachine to UltraSparc because it 
really is sparc specific.

llvm-svn: 4308
 2002-10-28 01:03:43 +00:00
Misha Brukman
142795fd17 Changed MachineCodeForMethod' to MachineFunction'. 
llvm-svn: 4301
 2002-10-28 00:28:31 +00:00
Chris Lattner
28d6f5bc40 Remove dead fixme 
llvm-svn: 4300
 2002-10-27 21:23:43 +00:00
Chris Lattner
e4e731b30c Instruction select constant arguments correctly 
llvm-svn: 4297
 2002-10-27 21:16:59 +00:00
Chris Lattner
046cb65220 Add instruction definitions for mov r, imm instructions 
llvm-svn: 4296
 2002-10-27 21:16:44 +00:00
Chris Lattner
cf9b4b2971 change ++ to +1 when using random access iterators 
llvm-svn: 4292
 2002-10-27 19:09:51 +00:00
Chris Lattner
d25a097994 Initial checkin of X86 backend. 
We can instruction select exactly one instruction 'ret void'.  Wow.

llvm-svn: 4284
 2002-10-25 22:55:53 +00:00
Chris Lattner
cfa05a3de9 Build the X86 target as well 
llvm-svn: 4283
 2002-10-25 22:55:05 +00:00
Chris Lattner
25173c1b4d Prune #includes 
llvm-svn: 4277
 2002-10-25 02:01:33 +00:00
Chris Lattner
877a38f48e Fix misspelling 
llvm-svn: 4276
 2002-10-25 01:43:26 +00:00
Chris Lattner
b43b03614e Minor cleanups 
Make sure to have a pass name

llvm-svn: 4268
 2002-10-23 01:12:01 +00:00
Chris Lattner
dfc8fbf16b - Two minor improvements to the MachineInstr class to reduce footprint and 
overhead: Merge 3 parallel vectors into 1, change regsUsed hash_set to be a
    bitvector.  Sped up LLC a little less than 10% in a debug build!

llvm-svn: 4261
 2002-10-22 23:16:21 +00:00
Chris Lattner
6515ec02aa Make sure to escape \'s when they are output 
llvm-svn: 4179
 2002-10-15 19:56:24 +00:00
Chris Lattner
294eae6735 - Add an endianness field to the TargetData datastructure 
llvm-svn: 4174
 2002-10-14 22:41:13 +00:00
Vikram S. Adve
e4413c5804 Print "circular" warning message only in debug mode. 
llvm-svn: 4170
 2002-10-14 16:32:49 +00:00
Vikram S. Adve
3cb2d3379d Removed misleading const keyword. 
llvm-svn: 4169
 2002-10-14 16:32:24 +00:00
Chris Lattner
b16f596ab4 Allow emission of names that start with an underscore. This is needed to 
interface with code that uses symbols in the ansi-c protected namespace.  In
most cases this comes from system header files, such as stdio.h.  In particular,
without this change, a reference to the __iob symbol is mangled into ll_iob,
which is not resolved by libc.

llvm-svn: 4165
 2002-10-14 06:14:18 +00:00
Vikram S. Adve
c6fe6822ca Don't try to compute the size of an "array" element if the index is 0: 
the size may be unknown, and is not needed.

llvm-svn: 4153
 2002-10-13 21:47:44 +00:00
Chris Lattner
fdf2ca9468 - Rename Instruction::First*Op to *OpsBegin, and Num*Ops to *OpsEnd to 
reflect the fact that it's a range being defined.

llvm-svn: 4147
 2002-10-13 19:39:16 +00:00
Vikram S. Adve
7387d96d6a Use vectors instead of hash_maps for issueGaps and conflictLists. 
These hash lookups were a major sink of time because they happen so often!

llvm-svn: 4136
 2002-10-13 00:37:46 +00:00
Vikram S. Adve
7b920c5768 Run LICM before GCSE! 
llvm-svn: 4135
 2002-10-13 00:34:10 +00:00
Vikram S. Adve
7436df838d Several major fixes, particularly in emitting constant aggregates: 
(1) Padding bytes between structure fields (for alignment) were never
    being emitted into the constant pool so the layout did not match!
(2) In printing constants, structures containing structures or arrays
    were never handled.
(3) Support new model for external/uninitialized/initialized globals.
    Uninitialized globals are no longer emitted since they are external.
    Initialized globals may go either in .bss or in .data.

llvm-svn: 4134
 2002-10-13 00:32:18 +00:00
Vikram S. Adve
032dee9564 Don't use %l0 for large operands to a SAVE since it is needed *before* SAVE! 
We now use %g1 instead since that is shared and volatile.

llvm-svn: 4133
 2002-10-13 00:24:06 +00:00
Vikram S. Adve
84fa49d0e5 Don't mark JMPLCALL and JMPLRET as branches. 
llvm-svn: 4132
 2002-10-13 00:22:32 +00:00
Vikram S. Adve
c78e160ede (1) Try to evaluate constant when multiplying 2 constants. 
(2) Use intelligent multiply selection code for array allocas.
(3) Don't use cache padding for alloca'd stack slots!
(4) Bug fix in handling call arguments: was not copying sixth FP arg
    to int reg. when calling a function with no prototype.

llvm-svn: 4130
 2002-10-13 00:18:57 +00:00
Vikram S. Adve
df4ed78bc9 Eliminate duplicate target pointer in SparcRegInfo. 
llvm-svn: 4129
 2002-10-13 00:06:04 +00:00
Vikram S. Adve
6b459791f7 Eliminate duplicate target pointer. Also add a few assertions. 
llvm-svn: 4128
 2002-10-13 00:05:30 +00:00
Vikram S. Adve
dc9d94262d Make sure to handle small negative values hiding as large unsigned longs -- 
this is a common case created by the front-end.

llvm-svn: 4127
 2002-10-13 00:04:26 +00:00
Vikram S. Adve
29dd99d98b Major fix: extract ConstantExpr nodes and decompose them into symbolic 
instructions so that (a) constant folding is done automatically before
code generation, and (b) selection does not have to deal with them.
Also, check for ConstantPointerRefs in additional to GlobalValues
when creating a GEP to load a global address.

llvm-svn: 4126
 2002-10-13 00:01:57 +00:00
Vikram S. Adve
eb6d37c32b Return address register should be marked as "result" for the JMPL instruction 
since it is defined by the instruction.

llvm-svn: 3966
 2002-09-28 17:00:15 +00:00
Vikram S. Adve
06742cc0e0 Live ranges for Return value and return address of a Call are no longer 
created here.  Instead they are created in LiveRangeInfo.cpp.  This
simplifies the code here quite a bit.

llvm-svn: 3965
 2002-09-28 16:59:05 +00:00
Vikram S. Adve
1aed35b2e5 Simplified code that handles call args and rets, so it no longer 
needs the RegClass list to be passed in.

llvm-svn: 3964
 2002-09-28 16:56:59 +00:00
Vikram S. Adve
33b21ec523 Simplify Call translation slightly. 
llvm-svn: 3963
 2002-09-28 16:55:41 +00:00
Vikram S. Adve
940f3fa91b Overhaul integer conversions to match C++ ISO standard. 
Don't allow direct FP-to-uint conversion (must be eliminated by preselection).
Address arithmetic for arrays is now entirely 64-bit so no sign-ext needed.

llvm-svn: 3961
 2002-09-27 14:33:08 +00:00
Vikram S. Adve
ae0af2a164 Modify operand order for Create{Sign,Zero}ExtensionInstructions. 
llvm-svn: 3960
 2002-09-27 14:29:45 +00:00
Vikram S. Adve
2a87b4496f Bug fix: some redundant copies were not being deleted after detection :-|. 
llvm-svn: 3959
 2002-09-27 14:27:37 +00:00
Vikram S. Adve
6cff79b3e1 Decompose FP-to-UInt casts into FP-to-ULong-toUInt. 
llvm-svn: 3957
 2002-09-27 14:24:45 +00:00
Chris Lattner
0f9d9214ab Convert TargetData to be an ImmutablePass 
llvm-svn: 3927
 2002-09-25 23:46:55 +00:00
Vikram S. Adve
a7e73bb0a0 Put intermediate source files in a subdirectory here instead of with 
object files.  Also,

llvm-svn: 3884
 2002-09-23 13:12:28 +00:00
Vikram S. Adve
20fc3f0ffd Disable reassociation pass in LLC until it is fixed. 
llvm-svn: 3883
 2002-09-23 12:55:50 +00:00
Anand Shukla
a34898d9ac Changed codegen to add 2 empty slots at the top of stack using StackSlots pass 
llvm-svn: 3873
 2002-09-21 05:01:21 +00:00
Anand Shukla
508121e5d9 Initial version: it adds 2 empty slots at the top of stack 
llvm-svn: 3872
 2002-09-21 04:58:26 +00:00
Vikram S. Adve
bcab1ae6c9 Add peephole optimization pass at the end of code generation. 
llvm-svn: 3846
 2002-09-20 00:52:43 +00:00
Vikram S. Adve
ed466a713a Added class MachineOptInfo as interface to target-specific 
routines supporting machine code optimization.
Also added method MachineInstrInfo::getNOPOpCode().

llvm-svn: 3845
 2002-09-20 00:52:09 +00:00
Vikram S. Adve
82b15d7253 Peephole optimization pass on final machine code. 
llvm-svn: 3840
 2002-09-20 00:42:11 +00:00
Vikram S. Adve
6f0ad9998b Moving these files from Code/PreSelection to here. 
Original logs for PreSelection.cpp:

  revision 1.2
  date: 2002/09/17 23:50:32;  author: lattner;  state: Exp;  lines: +1 -3
  Don't put default parameter values into .cpp files, it breaks 3.x compilers

  revision 1.1
  date: 2002/09/16 15:31:13;  author: vadve;  state: Exp;
  New preselection pass that specializes LLVM code for a target machine,
  while remaining in legal portable LLVM form and preserving type
  information and type safety.

llvm-svn: 3838
 2002-09-20 00:29:28 +00:00
Anand Shukla
4a62f43843 Removed debug info printing 
llvm-svn: 3778
 2002-09-17 20:24:46 +00:00
Vikram S. Adve
d43591bbc5 Use ulong instead of uint for size expressions. 
llvm-svn: 3744
 2002-09-16 15:56:45 +00:00
Vikram S. Adve
59b3b6c07b Add methods to query about the representation of LLVM quantities (e.g., 
constants).  Useful for target-dependent LLVM transformations like
Preselection.

llvm-svn: 3743
 2002-09-16 15:56:01 +00:00
Vikram S. Adve
571ad069cc Don't print out global names unnecesssarily. Also, expose pass 
constructors so passes can be inserted by TargetMachine.cpp.

llvm-svn: 3742
 2002-09-16 15:54:02 +00:00
Vikram S. Adve
58678cc06e Move all the code that creates code generation passes from Sparc.cpp to 
TargetMachine.cpp, since it is entirely machine-independent.
Also, add options to disable optional back-end passes (preselection and
instr. scheduling).

llvm-svn: 3740
 2002-09-16 15:39:26 +00:00
Misha Brukman
9e054e1d17 Again, including Module makes Function unnecessary. 
llvm-svn: 3714
 2002-09-14 02:07:43 +00:00
Chris Lattner
cb973bf5ee - Change getelementptr instruction to use long indexes instead of uint 
indexes for sequential types.

llvm-svn: 3683
 2002-09-11 01:21:35 +00:00
Chris Lattner
fb017cb38c - Change getelementptr instruction to use long indexes instead of uint 
indexes for sequential types.

llvm-svn: 3682
 2002-09-11 01:21:33 +00:00
Vikram S. Adve
1b1f2b2f5e Silly bug fix: Machine code vector could be empty for a no-op cast instruction, 
e.g., cast double to double.

llvm-svn: 3633
 2002-09-09 14:54:21 +00:00
Vikram S. Adve
58e8292647 Add new function UltraSparcInstrInfo::CreateZeroExtensionInstructions. 
llvm-svn: 3581
 2002-09-05 18:34:31 +00:00
Vikram S. Adve
e9990478f0 Bug fixes in casting between floats and ints smaller than 64 bits. 
Add UltraSparcInstrInfo::CreateZeroExtensionInstructions to help with that.

llvm-svn: 3580
 2002-09-05 18:33:59 +00:00
Vikram S. Adve
94b41af2f3 -- Use size of pointer element type instead of pointer type in array offsets! 
-- A few bug fixes in casting between floats and ints.
-- Use SRL reg, 0 instead of AND reg, 0xffffffff to clear high 32 bits.

llvm-svn: 3579
 2002-09-05 18:32:13 +00:00
Vikram S. Adve
e7aa2bf095 -- Bug fix: use byte offsets not typed offsets in output assembly! 
-- Add support for ConstantExpr constants (only cast and add operators so far)
-- Avoid generating label Bbss.bss, which sometimes came out twice.

llvm-svn: 3578
 2002-09-05 18:28:10 +00:00
Chris Lattner
3ce5b343c5 - Renamed Type::isIntegral() to Type::isInteger() 
- Added new method Type::isIntegral() that is the same as isInteger, but
    also accepts bool.

llvm-svn: 3574
 2002-09-03 01:08:28 +00:00
Anand Shukla
9a0d43e242 moved this file from lib/Reoptimizer/Mapping 
llvm-svn: 3519
 2002-08-27 22:47:33 +00:00
Anand Shukla
b18da43529 Added getFunctionInfo and MappingInfoForFunction pass, and fixed the earlier error in compiling 
llvm-svn: 3513
 2002-08-27 16:45:17 +00:00
Vikram S. Adve
87367a8b67 LoadIdx non-terminal no longer needed. 
llvm-svn: 3499
 2002-08-24 20:58:04 +00:00
Vikram S. Adve
96a4efb0a6 Sign-extend values used to index arrays (and Simplify 
SetOperandsForMemInstr significantly).  Load and Store
no longer have any indices.  Eliminate spurious sign-extension
on a cast to float/double.

llvm-svn: 3498
 2002-08-24 20:56:53 +00:00
Vikram S. Adve
ec7858cc82 Fix sign-extension: it needs to happen *after* multiplying by type size. 
llvm-svn: 3497
 2002-08-24 14:44:58 +00:00
Vikram S. Adve
da747e6066 Simplify previous hack slightly. 
llvm-svn: 3490
 2002-08-23 03:21:01 +00:00
Vikram S. Adve
ced94f5f61 Force sign-extension for uint array indexes from 32-bit to 64-bits 
since uint is not normally sign-extended when casting to uint64_t.

llvm-svn: 3489
 2002-08-23 02:55:51 +00:00
Chris Lattner
9f18db8156 Eliminated the MemAccessInst class, folding contents into GEP class. 
llvm-svn: 3488
 2002-08-22 23:37:24 +00:00
Chris Lattner
821de50a04 Change code to not use the copyOperands method added to User. It's now 
more efficient to boot.

llvm-svn: 3453
 2002-08-22 15:57:58 +00:00
Vikram S. Adve
e6c5ceeede Fix two resource names. 
llvm-svn: 3443
 2002-08-22 02:58:57 +00:00
Vikram S. Adve
098c5d67ba Add AsmPrinter::ConstantExprToString, which writes out a ConstantExpr 
as an expression.

llvm-svn: 3442
 2002-08-22 02:58:36 +00:00
Vikram S. Adve
39210a39ad Eliminate bool, boolreg and boolconst nonterminals, and just use 
reg and Constant instead.

llvm-svn: 3441
 2002-08-22 02:56:10 +00:00
Vikram S. Adve
dae1fe230e Change rules for Not, since it is now implemented as Xor(reg,11..1). 
Eliminate bool, boolreg and boolconst nonterminals, and just use
reg and Constant instead.

llvm-svn: 3440
 2002-08-22 02:55:21 +00:00
Chris Lattner
a477df934f This case JUST handles constantpointer nulls, not all pointers. 
llvm-svn: 3402
 2002-08-20 17:02:48 +00:00
Vikram S. Adve
5e22d4f669 Revise code generation for unary Not (boolean and bitwise), which is 
no longer a separate instruction but is instead implemented with XOR.

llvm-svn: 3342
 2002-08-15 14:17:37 +00:00
Vikram S. Adve
19b35e6904 Bug fix in TargetData::getIndexedOffset: We were using the pointer 
type instead of the element type for the element size for arrays.

llvm-svn: 3302
 2002-08-13 18:17:56 +00:00
Vikram S. Adve
74af31c71e Several bug fixes in casting to signed int values. 
llvm-svn: 3301
 2002-08-13 18:04:08 +00:00
Vikram S. Adve
5f028d4787 Handle small unsigned results correctly by clearing high bits. 
Bug fixes in casting to signed int values.

llvm-svn: 3297
 2002-08-13 17:40:54 +00:00
Brian Ensink
8395e5b203 Build correctly in the face of /shared. 
-Chris

llvm-svn: 3296
 2002-08-12 22:09:44 +00:00
Chris Lattner
4c524344b9 - Clean up interface to Sparc register handling a bit: 
- Eliminate Sparc*Order classes, moving contents to Sparc*Class classes
   - get register name methods now return const char * const pointers instead
     of std::string's.
   - Added file header comments to SparcRegClassInfo.(cpp|h)
   - Moved BIG constant arrays out of SparcRegClassInfo.h, into
     SparcRegInfo.cpp.  This should allow a LOT of std::string constructors to
     not have to be called.

llvm-svn: 3295
 2002-08-12 21:25:05 +00:00
Chris Lattner
8a4787495a * Removed extraneous #includes 
* Fixed file headers to be consistent with the rest of LLVM
* Other minor fixes

llvm-svn: 3278
 2002-08-09 20:08:06 +00:00
Chris Lattner
4d9fadc44a * Removed extraneous #includes 
* Fixed file headers to be consistent with the rest of LLVM
* Other minor fixes

llvm-svn: 3277
 2002-08-09 20:08:03 +00:00
Chris Lattner
811987ce5c Merge three loops into one. 
llvm-svn: 3259
 2002-08-07 21:39:48 +00:00
Chris Lattner
73ed86900d Fix breakage in the build 
llvm-svn: 3258
 2002-08-07 21:39:39 +00:00
Mehwish Nagda
0517186a70 added Mapping and Function Pass 
llvm-svn: 3251
 2002-08-05 23:23:19 +00:00
Vikram S. Adve
5d16e242e1 Bug fix in CreateCodeToLoadConst(): use sign of dest, not operand, 
in choosing how to create int-set instructions.

llvm-svn: 3248
 2002-08-04 20:55:37 +00:00
Vikram S. Adve
9dd19151b8 Bug fix in TargetData::getIndexedOffset(): handle struct offset 
after array offset correctly.  The type was not being updated for
array offsets!

llvm-svn: 3246
 2002-08-04 20:52:39 +00:00
Vikram S. Adve
03a5ca5dcc Bug fix in SetOperandsForMemInstr: handle leading zeros correctly 
when folding or not folding GEPs.

llvm-svn: 3245
 2002-08-04 20:51:05 +00:00
Chris Lattner
6f818d501c Fix compilation problem. IsIndexZero doesn't exist, use IsZero instead. 
llvm-svn: 3243
 2002-08-03 20:57:38 +00:00
Vikram S. Adve
6316385f3e Simplified handling of array indexes in SetMemOperands_Internal. 
llvm-svn: 3236
 2002-08-03 13:48:21 +00:00
Vikram S. Adve
02b632401c Bug fix: incorrect SAVE instruction when using register for stack size. 
llvm-svn: 3198
 2002-08-01 14:26:11 +00:00
Vikram S. Adve
836a811861 Just improved comments and assertions. 
llvm-svn: 3191
 2002-07-31 21:13:31 +00:00
Vikram S. Adve
d5185db5e8 Add a missing case: converting float/double to unsigned integer types. 
llvm-svn: 3188
 2002-07-31 21:01:34 +00:00
Chris Lattner
82f80aaa16 * Move InstructionSelection pass to lib/CodeGen/InstrSelection so it is 
shared by backends.

llvm-svn: 3146
 2002-07-30 03:56:16 +00:00
Mehwish Nagda
07aeba2eb9 changed implementation of LLVM BYTECODE Length 
llvm-svn: 3089
 2002-07-25 17:22:48 +00:00
Chris Lattner
05fe67c0d2 *** empty log message *** 
llvm-svn: 3075
 2002-07-25 06:17:51 +00:00
Chris Lattner
49ed01e60d GCC 3.1 changes, finally the burm file builds the FIRST time a clean directory is built. 
llvm-svn: 3073
 2002-07-25 06:08:32 +00:00
Chris Lattner
9860e64083 *** empty log message *** 
llvm-svn: 3056
 2002-07-24 21:21:32 +00:00