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1945 Commits

Author SHA1 Message Date
Misha Brukman
869f2b7219 * Add support for loading FP constants from the constant pool 
* Load FP values into int regs as well for vararg functions; without memory ops!

llvm-svn: 14700
 2004-07-08 18:02:38 +00:00
Misha Brukman
3bbd3cd1de * Fix header comment, excise references to X86 
* Add suport for printing out references to constant pool indices

llvm-svn: 14699
 2004-07-08 17:58:04 +00:00
Brian Gaeke
0601002727 Support setcc on fp values. 
llvm-svn: 14687
 2004-07-08 09:08:35 +00:00
Brian Gaeke
23d171a9ed Add floating-point branches and compares. Compares don't complete 
until the next cycle, and there's no interlock, so they effectively
have a delay slot.

llvm-svn: 14686
 2004-07-08 09:08:22 +00:00
Brian Gaeke
99a4b4ecc6 Fix bug where SwitchSection would fail to change to ".bss" successfully. 
llvm-svn: 14685
 2004-07-08 08:08:23 +00:00
Brian Gaeke
79c41545a7 Fix bug involving bool arguments to binary operators. 
Fix typo in comment.

llvm-svn: 14684
 2004-07-08 08:08:10 +00:00
Brian Gaeke
2de292734d Fix bug in copying long constants to register pairs. We were getting 
the top and bottom halves backwards...how embarrassing.
Support 'cast long to long' and other similar no-op casts to long.
Support 'ret long'.

llvm-svn: 14683
 2004-07-08 07:52:13 +00:00
Brian Gaeke
04176a23a7 Support 'ret float' 
llvm-svn: 14681
 2004-07-08 07:22:27 +00:00
Misha Brukman
93b47cc963 * Use a map for caching lookups to external functions (fp div/rem) 
* Tabs to spaces

llvm-svn: 14673
 2004-07-07 20:07:22 +00:00
Misha Brukman
f2473e6267 * Wrap long lines (comments and code) 
* Tabs to spaces

llvm-svn: 14672
 2004-07-07 20:01:36 +00:00
Misha Brukman
d5a439760c Add fmod() to the Module being compiled so that it gets a stub in the asm file 
llvm-svn: 14670
 2004-07-07 15:36:18 +00:00
Misha Brukman
ef78244e72 * Add support for calling vararg functions (must pass doubles in int regs too) 
* Make visitSetCondInst() share condition-generating code with EmitComparison()
* There are 13 FPRs for function-passing arguments, not 8
* Do not rely on registers being sequential, use an array lookup
* In unimplemented switch cases, send an error and abort instead of silent
  fall-through
* Add doInitialization() for adding function prototypes for external math fns
* Minor changes: fix indentation, spacing, code clarity

llvm-svn: 14653
 2004-07-06 22:51:53 +00:00
Misha Brukman
4543cea6ae Use the more compact bl' instead of cryptic (but equivalent) bcl 20,31' 
llvm-svn: 14652
 2004-07-06 22:40:34 +00:00
Misha Brukman
0b6de12a84 * Add utility functions: convert SetCC => PPC opcode and invert PPC opcode 
* If SetCondInst is folded into BranchInst (and it is the only user), do not
  emit code for SetCondInst
* Fix assembly opcodes in comments in visitSetCondInst()
* Fix codegen of conditional branches

llvm-svn: 14643
 2004-07-06 15:32:44 +00:00
Chris Lattner
8d61e9ad98 Add #includes 
llvm-svn: 14625
 2004-07-04 17:19:21 +00:00
Reid Spencer
50ec3f9325 Add #include <iostream> since Value.h does not #include it any more. 
llvm-svn: 14622
 2004-07-04 12:19:56 +00:00
Misha Brukman
607dd868a8 Add FIXME notes for spilling int/fp regs (need to calculate stack space). 
llvm-svn: 14581
 2004-07-02 17:54:38 +00:00
Brian Gaeke
318c4cf9c2 Fix use-before-def thinko 
llvm-svn: 14570
 2004-07-02 07:01:31 +00:00
Chris Lattner
c83e510819 Fix potential problems with unreachable basic blocks. 
Also, while noone's looking, add support for constant expressions.  Wait,
I said not to look!

llvm-svn: 14566
 2004-07-02 05:49:11 +00:00
Chris Lattner
a99a36881f Fix all of those problems that the PPC backend has running 176.gcc :) 
llvm-svn: 14565
 2004-07-02 05:48:42 +00:00
Chris Lattner
6da0499f4b Remove dead blocks 
llvm-svn: 14564
 2004-07-02 05:46:41 +00:00
Brian Gaeke
b92c136437 Add M_TERMINATOR_FLAG to terminator instructions (branches and returns). 
Also, the RETURN instructions are not used in the sparcv9 backend.

llvm-svn: 14559
 2004-07-02 04:57:37 +00:00
Brian Gaeke
62ceddefe8 RETURN instructions are not used in the sparc backend. 
When in doubt, stamp it out!!

llvm-svn: 14558
 2004-07-02 04:57:35 +00:00
Misha Brukman
c9ecaeb69d * Follow the PowerPC convention of leaving 24 bytes for linking on the stack. 
* Also leave space for spilling integer registers (this should be calculated)

llvm-svn: 14554
 2004-07-01 21:35:00 +00:00
Misha Brukman
f5deab6100 * Get rid of constant-expr handling code: we use the ConstantExpr lowering pass 
* Use the SetCC handling code in the format of Brian's V8
* Add FIXMEs where calls to functions are being made without adding them to the
  Module first... they cause missing symbols at assembly-time.

llvm-svn: 14553
 2004-07-01 21:34:10 +00:00
Misha Brukman
1546c2e9c0 Wrap long line 
llvm-svn: 14552
 2004-07-01 21:27:59 +00:00
Misha Brukman
e409874a9f * Do not allocate r0 as we use it indiscriminantly in the instr selector. 
* Do not define CR register class because we don't (yet) have the i4 type

llvm-svn: 14551
 2004-07-01 21:24:50 +00:00
Misha Brukman
b296163bb1 Check if operand has an allocated reg before requesting it. 
llvm-svn: 14550
 2004-07-01 21:09:12 +00:00
Chris Lattner
3fd0ea69f6 Handle targets where alignment can be bigger than the size of the data. 
Contributed by Vladimir Prus!

llvm-svn: 14534
 2004-07-01 17:32:59 +00:00
Misha Brukman
a691e0bff7 Fix indentation to be 2 spaces. 
llvm-svn: 14512
 2004-06-30 22:11:03 +00:00
Misha Brukman
efcb6b8c2c * Coalesce the handy CALL* alias opcodes with the standard ones 
* Congregate more branch-and-link opcodes together
* Mark FP, CPR, and special registers as volatile across calls

llvm-svn: 14511
 2004-06-30 22:00:45 +00:00
Misha Brukman
7089b3d426 * Allow more registers to be allocated from the general register pool 
* Define the condition register class

llvm-svn: 14510
 2004-06-30 21:54:50 +00:00
Misha Brukman
08a07e969f * Inquire about the number of operands from the instruction directly 
* Only check for a register if we are sure the instruction has one allocated

llvm-svn: 14509
 2004-06-30 21:54:12 +00:00
Misha Brukman
010e07078b visitSetCondInst() takes a parameter of type `SetCondInst' 
llvm-svn: 14508
 2004-06-30 21:47:40 +00:00
Misha Brukman
49e6aa1ba7 Always assume a function may have calls because the printer may add `bl' to get 
the PC in a code sequence for global variables.

llvm-svn: 14506
 2004-06-30 00:09:12 +00:00
Misha Brukman
3422760e16 * Don't save LR when outputting globals: it's already saved on the stack once 
for the function
* Registers aren't necessarily sequential wrt their enums, don't rely on it
  when emitting function arguments into sequential registers
* Remove X86-specific comments about AL/BL/AH/BH/EDX/etc
* Add an abort() for an unimplemented signed right shift
* The src operand for a GEP was never emitted!  Fixed.
* We can skip zero-valued GEP indices as they are no-ops.

"Hello, World!" now works.

llvm-svn: 14505
 2004-06-29 23:45:05 +00:00
Misha Brukman
e9166fd352 * Stop using BBNumbering, we don't really need it 
* Only increment labelNumber once, because it's used by both Load{hi,lo}Addr
* There is no .bss section on PowerPC
* Use .align 2 instead of other random numbers

llvm-svn: 14504
 2004-06-29 23:40:57 +00:00
Misha Brukman
79a92e35b4 Set up the prologue and epilogue to be more like the manual and GCC output. 
llvm-svn: 14502
 2004-06-29 23:38:26 +00:00
Misha Brukman
2242e8d27f * Use LA instead of LWZ for LoadLoAddr 
* Specify the isCall bit and caller-save registers for some call instrs

llvm-svn: 14501
 2004-06-29 23:37:36 +00:00
Misha Brukman
a0721ac147 Only allocate non-volatile registers R13-31 (for now). 
llvm-svn: 14500
 2004-06-29 23:35:32 +00:00
Misha Brukman
ddf07d1c08 Lower ConstantExpressions before the code generator. 
llvm-svn: 14497
 2004-06-29 23:33:20 +00:00
Misha Brukman
9e015dddb8 Fix associativity of parameters to assert(): now it actually makes sense. 
llvm-svn: 14483
 2004-06-29 19:43:20 +00:00
Misha Brukman
b3e4179f42 Convert tabs to spaces. 
llvm-svn: 14482
 2004-06-29 19:28:53 +00:00
Misha Brukman
01841234e8 * Fix saving LR in function prologue 
* Adjust epilogue restore sequence to match the PowerPC documentation

llvm-svn: 14480
 2004-06-29 17:14:42 +00:00
Misha Brukman
08f6a46ce2 Assembly syntax/comment fixes by Nate Begeman. 
llvm-svn: 14479
 2004-06-29 17:13:26 +00:00
Chris Lattner
dda82ce624 The code generator should work with unreachable blocks. If not, then this 
is a bug that should be fixed in the code generator, not papered over with
the simplifycfg pass.  Eliminating this makes bugpoint much more useful

llvm-svn: 14477
 2004-06-29 07:20:16 +00:00
Chris Lattner
2abf0134d0 I believe that the code generator now properly handles dead basic blocks. If not, 
this is a bug, and should be fixed.

llvm-svn: 14476
 2004-06-29 07:17:12 +00:00
Chris Lattner
cd1a39bbec Fix a regression from r1.224. In particular, codegen a cast from double -> 
float as a truncation by going through memory.  This truncation was being
skipped, which caused 175.vpr to fail after aggressive register promotion.

llvm-svn: 14473
 2004-06-29 00:14:38 +00:00
Misha Brukman
7627e1ff1a Can't print out machine code before it is constructed. 
llvm-svn: 14472
 2004-06-28 21:16:57 +00:00
Misha Brukman
92cc94a0e5 Fix the assembly opcode on LOADLoAddr, courtesy of Nate Begeman. 
llvm-svn: 14470
 2004-06-28 18:27:08 +00:00
Misha Brukman
2f7332b752 Set isBranch and isTerminator bits on all branch instructions. 
llvm-svn: 14469
 2004-06-28 18:23:35 +00:00
Misha Brukman
8f1e58dfe3 Fix loading and storing PC-relative static variables, courtesy of Nate Begeman. 
llvm-svn: 14468
 2004-06-28 18:20:59 +00:00
Misha Brukman
2eccf504e2 No need to generate a lazy-linking stub for internal functions, they can be 
resolved by the static linker.

llvm-svn: 14467
 2004-06-28 18:03:37 +00:00
Misha Brukman
5a52b7aa36 Do not set the `link' bit when branching to the first BB of a function, as it 
will cause an infinite loop.  The link bit is only used for calling functions.

llvm-svn: 14466
 2004-06-28 17:57:40 +00:00
Misha Brukman
02ac5488d5 Fix spacing around function arguments. 
llvm-svn: 14463
 2004-06-28 15:53:27 +00:00
Brian Gaeke
92bba4c696 Allow saving and restoring of double and float registers. 
Allow copying of float registers.

llvm-svn: 14445
 2004-06-27 22:59:56 +00:00
Brian Gaeke
6edb16d8cd Add FITOS, FITOD, and F{ADD,SUB,MUL,DIV}{S,D}. 
llvm-svn: 14444
 2004-06-27 22:53:56 +00:00
Brian Gaeke
5b14de32c6 Support printing constant pool indices. 
If we see an "unknown operand", abort so it's easier to fix it.

llvm-svn: 14441
 2004-06-27 22:50:44 +00:00
Brian Gaeke
0cee4d2fb9 Trim whitespace. 
Support cast of ints (and narrower) to float and double.
Support cast double to double (using load and store).
Abort if we see a CallInst or SetCondInst with long/fp args, instead
of producing bad code.
Support add, sub, mul, div of float and double.

llvm-svn: 14440
 2004-06-27 22:47:33 +00:00
Chris Lattner
680ff7de4a There is no reason to print ValueType here 
llvm-svn: 14425
 2004-06-26 19:36:34 +00:00
Misha Brukman
aef8fec73f Allow debugging machine instrs (by printout) before/after isel and regalloc 
llvm-svn: 14416
 2004-06-25 19:57:47 +00:00
Misha Brukman
64c1484679 Combine several if stmts with returns into an if-then-elseif-else chain. 
llvm-svn: 14414
 2004-06-25 19:24:52 +00:00
Misha Brukman
d903511cdf Do not move any values into registers for a void return (there isn't anything). 
llvm-svn: 14413
 2004-06-25 19:04:27 +00:00
Misha Brukman
981cf1f1b4 Convert tabs to spaces. 
llvm-svn: 14412
 2004-06-25 18:45:07 +00:00
Misha Brukman
8f9b970b80 Fix opcode: no immediate in an `or r1, r2, r3' (all registers) instr. 
llvm-svn: 14411
 2004-06-25 18:36:53 +00:00
Misha Brukman
d635cd485a * Be consistent about MachineBB labels and references to them in instr stream 
* Use MachineBB's built-in numbering system instead of reinventing one

llvm-svn: 14408
 2004-06-25 15:42:10 +00:00
Misha Brukman
4f15d2830a * Initialize the entire array statically, not member-at-a-time 
* Remove x86-specific comment re: intel vs. at&t assembly syntax

llvm-svn: 14406
 2004-06-25 15:11:34 +00:00
Misha Brukman
fb9eb50899 Fix bug in previous checkin. 
llvm-svn: 14405
 2004-06-25 14:57:19 +00:00
Misha Brukman
4e610581b0 * Wrap long lines 
* Replace silent fall-through FIXME comments with an error to cerr and an abort
* No need to set size of statically initialized arrays

llvm-svn: 14404
 2004-06-25 14:50:41 +00:00
Misha Brukman
167dd03c82 Excise X86-specific comments. 
llvm-svn: 14403
 2004-06-25 14:13:26 +00:00
Tanya Lattner
da38dc5180 Made a fix so that you can print out MachineInstrs that belong to a MachineBasicBlock that is not yet attached to a MachineFunction. This change includes changing the third operand (TargetMachine) to a pointer for the MachineInstr::print function. 
llvm-svn: 14389
 2004-06-25 00:13:11 +00:00
Misha Brukman
854b18fd19 Add option to print out machine code before register allocation. 
llvm-svn: 14387
 2004-06-24 23:55:01 +00:00
Misha Brukman
91ffab9644 Use DEBUG() guard for printing out debug info. 
llvm-svn: 14386
 2004-06-24 23:54:05 +00:00
Misha Brukman
1d7c31b2c1 Add a `break' in the switch/case statement between the int/fp sections. 
llvm-svn: 14385
 2004-06-24 23:53:24 +00:00
Misha Brukman
4e3d5069db * Lowercase the register names 
* Parenthesize assert() expressions correctly
* Fix spacing around for() and if() statements

llvm-svn: 14384
 2004-06-24 23:51:00 +00:00
Misha Brukman
57b3f07b31 * LowercaseString moved to StringExtras.h 
* Wrap long line to 80 cols

llvm-svn: 14382
 2004-06-24 23:38:20 +00:00
Misha Brukman
5d0be46fb7 * Tabs to spaces 
* Send an error message to std::cerr before abort()ing

llvm-svn: 14381
 2004-06-24 23:19:36 +00:00
Misha Brukman
b312aa9f4b * Tabs to spaces 
* Remove unnecessary parens, braces, clean up code layout

llvm-svn: 14379
 2004-06-24 23:04:11 +00:00
Misha Brukman
2faa0989d0 Unindent some more code to be consistent. 
llvm-svn: 14377
 2004-06-24 22:00:15 +00:00
Misha Brukman
021bf53a50 Unindent some code, it only needs 2 spaces. 
llvm-svn: 14376
 2004-06-24 21:56:15 +00:00
Misha Brukman
ec698da314 In emitting code for a GEP instr, iterate over GEPTypes because there is one 
more operand in GEPOps than there are types in GEPTypes: the pointer that is the
first operand of the GEP instruction.

llvm-svn: 14375
 2004-06-24 21:54:47 +00:00
Brian Gaeke
67fe35225a Add FSTOD and FDTOS conversion instructions. 
llvm-svn: 14372
 2004-06-24 21:22:09 +00:00
Brian Gaeke
8ce4fc5917 Support cast float to float, cast double to float, and cast float to double. 
(It's not yet clear how to copy doubles from register to register.)

llvm-svn: 14371
 2004-06-24 21:22:08 +00:00
Misha Brukman
0e076dbd7a * Order #includes 
* Use the DEBUG() guard for debug printouts

llvm-svn: 14367
 2004-06-24 17:31:42 +00:00
Brian Gaeke
003a4a500c Make the double-fp pseudo registers be "NamedRegs". 
llvm-svn: 14366
 2004-06-24 09:23:21 +00:00
Brian Gaeke
2e0d04003c Fix a dyn_cast in copyConstantToRegister which should have been a cast. 
Compactify the code that emits copies of constant ints into registers.

llvm-svn: 14365
 2004-06-24 09:17:47 +00:00
Brian Gaeke
734c654e50 The long integer pseudo-regs are history. So long, we hardly knew ye. 
llvm-svn: 14364
 2004-06-24 08:55:21 +00:00
Brian Gaeke
9a7eca6c51 Use correct add*Imm form in more BuildMI calls. 
Fix bug in emitGEPOperation where we weren't passing MBB, IP to getReg.
(hey, wouldn't a constant expression lowering pass be cool? huh huhuhuh)
Fix bug in emitGEPOperation where we might try to OR a constant into a
register which was too big to fit in the immediate field.
Support and, or, xor of longs.

llvm-svn: 14363
 2004-06-24 08:55:09 +00:00
Brian Gaeke
99b4ee166c Rename the load and store opcodes. The non-fp ones only have one 
variant worth worrying about; the fp ones have two.

llvm-svn: 14362
 2004-06-24 07:37:12 +00:00
Brian Gaeke
8f0aac675d Rename the load and store opcodes. The non-fp ones only have one 
variant worth worrying about; the fp ones have two.
Add fp stores.

llvm-svn: 14361
 2004-06-24 07:36:59 +00:00
Brian Gaeke
e39ef4e8b9 Rename the load and store opcodes. The non-fp ones only have one 
variant worth worrying about; the fp ones have two.
Stub out the case analysis of int-to-fp casts (no code yet).
I think the number of operands passed to BuildMI for loads was wrong.
Support load and store of float and double.

llvm-svn: 14360
 2004-06-24 07:36:48 +00:00
Brian Gaeke
236ef1542c Strange as it may sound, we'll not use LDD/STD to store longs. For reasons of 
representational consistency, we want to address the halves of each 64-bit value
separately.

llvm-svn: 14356
 2004-06-24 06:44:57 +00:00
Brian Gaeke
ac14491ad0 Support constant cast expressions. 
llvm-svn: 14355
 2004-06-24 06:33:00 +00:00
Brian Gaeke
908208bc50 Make the most commonly preselected instructions add to the names of the 
instructions they augment, instead of replacing them.  It's good for debugging,
and it's OK for the sparcv9 backend.

llvm-svn: 14353
 2004-06-23 21:41:32 +00:00
Brian Gaeke
771e52d494 Add pseudo-registers and register class for 64-bit integer values. 
llvm-svn: 14332
 2004-06-22 20:14:41 +00:00
Misha Brukman
6a0ace201c Order #includes as per style guide. 
llvm-svn: 14305
 2004-06-21 21:54:40 +00:00
Misha Brukman
1c33cc1ad1 Direct declaration of namespace-ified globals does not work, must enclose 
them with a namespace declaration.

llvm-svn: 14303
 2004-06-21 21:44:12 +00:00
Misha Brukman
c66135f976 Specify variables' namespace directly instead of using an enclosing namespace. 
llvm-svn: 14302
 2004-06-21 21:21:49 +00:00
Misha Brukman
53df2fe9e7 Move implemented interface header up to the top. 
llvm-svn: 14301
 2004-06-21 21:20:23 +00:00
Misha Brukman
ae07b686fa Spell out `NoFramePointerElim'. 
llvm-svn: 14300
 2004-06-21 21:18:48 +00:00
Misha Brukman
e38f7ed2cc Spell out `NoFramePointerElim' for readability. 
llvm-svn: 14299
 2004-06-21 21:17:44 +00:00
Misha Brukman
a2ac4e4345 Use the common `NoFPElim' setting instead of our own. 
llvm-svn: 14298
 2004-06-21 21:10:24 +00:00
Misha Brukman
2f580c043c Implement `NoFPElim' in a target-agnostic fashion so it can be shared. 
llvm-svn: 14297
 2004-06-21 21:08:45 +00:00
Misha Brukman
a79674d478 * Make indentation consistent at 2 chars 
* Doxygenify function comments
* Wrap code at 80 cols

llvm-svn: 14295
 2004-06-21 20:22:03 +00:00
Misha Brukman
4424ef9dd1 This file is no longer applicable. 
llvm-svn: 14294
 2004-06-21 20:17:41 +00:00
Misha Brukman
3d93b9ccca llvm/IntrinsicLowering.h => llvm/CodeGen/IntrinsicLowering.h 
llvm-svn: 14292
 2004-06-21 18:30:31 +00:00
Misha Brukman
36089f7034 Intrinsic::isnan has gone away, support for it commented out. 
Intrinsic::isunordered has arrived, and we just use the standard lowering
pass for it.

llvm-svn: 14290
 2004-06-21 17:58:36 +00:00
Misha Brukman
1c26b2e29d Convert tabs to spaces. 
llvm-svn: 14289
 2004-06-21 17:41:12 +00:00
Misha Brukman
30e1885192 Type::getPrimitiveID() -> getTypeID() 
llvm-svn: 14288
 2004-06-21 17:25:55 +00:00
Misha Brukman
76b4796e7c Type::getPrimitiveID() -> getTypeID() 
llvm-svn: 14287
 2004-06-21 17:19:08 +00:00
Misha Brukman
269034c151 Initial revision 
llvm-svn: 14283
 2004-06-21 16:55:25 +00:00
Chris Lattner
cc465361d9 Move the IntrinsicLowering header into the CodeGen directory, as per PR346 
llvm-svn: 14266
 2004-06-20 07:49:54 +00:00
Brian Gaeke
26336244f5 .zero doesn't work in the Solaris assembler. 
llvm-svn: 14231
 2004-06-18 08:59:16 +00:00
Brian Gaeke
6a8de685b3 Get rid of selects the easy way 
llvm-svn: 14230
 2004-06-18 08:46:15 +00:00
Brian Gaeke
a9daa0a519 Make visitAllocaInst() look more like its X86 counterpart. 
llvm-svn: 14229
 2004-06-18 08:45:52 +00:00
Brian Gaeke
ab4687b176 Mess around with allocation order. In particular, I think we ought to be 
using the local & in regs first because they are not clobbered by calls.

llvm-svn: 14228
 2004-06-18 08:19:08 +00:00
Brian Gaeke
f5697cf56c JMPL has a delay slot. 
llvm-svn: 14227
 2004-06-18 08:18:54 +00:00
Brian Gaeke
2a5dec63a6 Clean up the commented-out F3_3 stuff. 
Replace it with a working class for FP instrs.

llvm-svn: 14226
 2004-06-18 06:28:21 +00:00
Brian Gaeke
01309de73d Fix jmpl. 
Add some FP moves.

llvm-svn: 14225
 2004-06-18 06:28:10 +00:00
Brian Gaeke
c045f38dcb Support printing base+offset pairs where the offset is a register. 
Use this for printing the jmpl indirect-call instruction.

llvm-svn: 14224
 2004-06-18 06:27:59 +00:00
Brian Gaeke
92a3e14ac4 Support intrinsic calls (although no particular intrinsics are supported yet). 
Support indirect calls.
Support returning a float value.

llvm-svn: 14223
 2004-06-18 06:27:48 +00:00
Brian Gaeke
c5f1146e62 Add load instructions for floating-point registers. 
llvm-svn: 14217
 2004-06-18 05:19:27 +00:00
Brian Gaeke
7a618842f1 Support alloca instructions. 
Support copying floating-point constants to registers.
Add assertion to visitCallInst to abort if we hit a NULL calledFunction, for now.

llvm-svn: 14216
 2004-06-18 05:19:16 +00:00
Chris Lattner
9e1bbe86ba Codegen sub C, X a little bit better for register pressure. Instead of 
mov REG, C
sub REG, X

generate:

neg X
add X, C

which uses one less reg

llvm-svn: 14213
 2004-06-18 00:50:37 +00:00
Chris Lattner
a5750b975a Fold setcc instructions into select and branches that are not in the same BB as 
the setcc.

llvm-svn: 14212
 2004-06-18 00:29:22 +00:00
Brian Gaeke
b824469b44 Make storeRegToStackSlot slightly shorter. 
Make copyRegToReg return 1 instead of -1.
Edit a comment in emitPrologue().

llvm-svn: 14211
 2004-06-17 22:34:48 +00:00
Brian Gaeke
9a0dc64af6 Set the isBranch and isTerminator flags on branch instructions correctly. 
Add a FIXME about the (currently unused) JMPL instructions.

llvm-svn: 14210
 2004-06-17 22:34:29 +00:00
Brian Gaeke
c82f209e72 Emit stores correctly; don't fail an assertion. 
llvm-svn: 14209
 2004-06-17 22:34:19 +00:00
Brian Gaeke
d084a534a2 Support generating machine instructions for Phi nodes (based on x86, but with 
modifications for 1 LLVM BB --> many MBBs).
Fix store operand order: make it always be Base, Offset, SrcReg (think
"[ Base + Offset ] = SrcReg").
Rewrite visitBranchInst() to be even dumber (but working) -- give up on
the branch fallthrough trick, for the time being.
Make visitSetCondInst() work.

llvm-svn: 14208
 2004-06-17 22:34:08 +00:00
Brian Gaeke
af2408a4ee Recognize more branches. 
llvm-svn: 14207
 2004-06-17 22:33:57 +00:00
Chris Lattner
f815117481 Do not fold loads into instructions if it is used more than once. In particular 
we do not want to fold the load in cases like this:

  X = load
    = add A, X
    = add B, X

llvm-svn: 14204
 2004-06-17 22:15:25 +00:00
Brian Gaeke
7d711d517b Use addGlobalAddress and addMBB for call & branch targets instead of addPCDisp. 
Abort if we see a PCRelativeDisp MachineOperand, to be safe. This matches
the X86 backend.

llvm-svn: 14202
 2004-06-17 19:39:23 +00:00
Chris Lattner
0cd29ae2cd Rename Type::PrimitiveID to TypeId and ::getPrimitiveID() to ::getTypeID() 
llvm-svn: 14201
 2004-06-17 18:19:28 +00:00
Chris Lattner
9bb0083d16 Remove support for llvm.isnan. Alkis wins :) 
llvm-svn: 14189
 2004-06-15 21:48:07 +00:00
Chris Lattner
d11493d8c4 Add basic support for the isunordered intrinsic. The isnan stuff still needs to go 
llvm-svn: 14185
 2004-06-15 21:36:44 +00:00
Brian Gaeke
0a7b268b1a Fix thinko in visitor... ShiftInsts should currently be delegated 
to visitBinaryOperator.

llvm-svn: 14182
 2004-06-15 21:09:46 +00:00
Brian Gaeke
5fe5e06bea I think we'll use the standard lowering passes for now. 
llvm-svn: 14179
 2004-06-15 20:37:12 +00:00
Brian Gaeke
d5f45ba4a1 Fix bug generating code for void call instructions: don't call 
getReg() on void value.

llvm-svn: 14178
 2004-06-15 20:06:32 +00:00
Brian Gaeke
79008f4648 Squash a warning from the Solaris assembler by aligning the stack 
on a double-word boundary instead of a single-word boundary.

llvm-svn: 14177
 2004-06-15 19:53:10 +00:00
Brian Gaeke
e02c780919 Allow special-casing of operand printing based on opcode. Print 
non-register, non-immed. arguments to SETHI and OR using %hi() and
%lo() respectively.

llvm-svn: 14176
 2004-06-15 19:52:59 +00:00
Brian Gaeke
b158cb6411 Support constant GEP expressions. 
Support copying long constants to register pairs.
Support copying ConstantPointerNulls and ConstantPointerRefs to registers.

llvm-svn: 14175
 2004-06-15 19:16:07 +00:00
Misha Brukman
130e02f232 Add file comment. 
llvm-svn: 14172
 2004-06-14 15:13:59 +00:00
Brian Gaeke
21e2dd53d8 Make -print-machineinstrs even stronger. You get to see the final code after 
peepholing, and make it work the same way in the JIT as in LLC.

llvm-svn: 14170
 2004-06-14 05:05:45 +00:00
Chris Lattner
3a8e675c03 By far, one of the most common uses of isnan is to make 'isunordered' 
comparisons.  In an 'isunordered' predicate, which looks like this at
the LLVM level:

        %a = call bool %llvm.isnan(double %X)
        %b = call bool %llvm.isnan(double %Y)
        %COM = or bool %a, %b

We used to generate this code:

        fxch %ST(1)
        fucomip %ST(0), %ST(0)
        setp %AL
        fucomip %ST(0), %ST(0)
        setp %AH
        or %AL, %AH

With this patch, we generate this code:

        fucomip %ST(0), %ST(1)
        fstp %ST(0)
        setp %AL

Which should make alkis happy.  Tested as X86/compare_folding.llx:test1

llvm-svn: 14148
 2004-06-11 05:33:49 +00:00
Chris Lattner
f78e3e7f63 Fix bug in previous checkin 
llvm-svn: 14146
 2004-06-11 05:22:44 +00:00
Chris Lattner
7d8093efb1 No really, these are dead now 
llvm-svn: 14145
 2004-06-11 04:50:14 +00:00
Chris Lattner
a8e603b719 Now that compare instructions aren't lumped in with the other twoargfp instructions, 
we can get rid of the FpUCOM/FpUCOMi pseudo instructions, which makes stuff simpler
and faster.

llvm-svn: 14144
 2004-06-11 04:49:02 +00:00
Chris Lattner
b050f778ca Introduce a new FP instruction type to separate the compare cases from the 
twoarg cases.

llvm-svn: 14143
 2004-06-11 04:41:24 +00:00
Chris Lattner
edb06042b9 Add direct support for the isnan intrinsic, implementing test/Regression/CodeGen/X86/isnan.llx 
testcase

llvm-svn: 14141
 2004-06-11 04:31:10 +00:00
Chris Lattner
4c8b57ea31 Add support for the setp instructions 
llvm-svn: 14140
 2004-06-11 04:30:06 +00:00
Chris Lattner
c66e996765 Split compare instruction handling OUT of handleTwoArgFP into handleCompareFP. 
This makes the code much simpler, and the two cases really do belong apart.
Once we do it, it's pretty obvious how flawed the logic was for A != A case,
so I fixed it (fixing PR369).

This also uses freeStackSlotAfter instead of inserting an fxchg then
popStackAfter'ing in the case where there is a dead result (unlikely, but
possible), producing better code.

llvm-svn: 14139
 2004-06-11 04:25:06 +00:00
Brian Gaeke
c5bb88c934 Turn loads of ConstantPointerNulls into loads of zero... don't spill 
them into the constant pool.

llvm-svn: 14128
 2004-06-11 02:03:48 +00:00
Chris Lattner
1f0e0d55c4 Fix the fixed stack offset, patch contributed by Vladimir Prus 
llvm-svn: 14110
 2004-06-10 06:19:25 +00:00
Brian Gaeke
9cf9c6e184 Encode %fsr correctly; don't fail an assertion. 
llvm-svn: 14103
 2004-06-09 21:54:59 +00:00
Brian Gaeke
badbc7476a Fix encoding of ST*FSR instructions. 
llvm-svn: 14102
 2004-06-09 21:54:58 +00:00
Brian Gaeke
8e446cf7a2 Fix assertion failure message to have the right method name. 
llvm-svn: 14101
 2004-06-09 20:44:42 +00:00
John Criswell
287e3fc88b Fix for PR#366. We use getClassB() so that we can handle cast instructions 
that cast to bool.

llvm-svn: 14096
 2004-06-09 15:18:51 +00:00
Brian Gaeke
91a3d0f55f Fix a minor bug in the map - since this pass adds a global symbol, it must be 
accounted for in the map (at least, in its current format).

llvm-svn: 14075
 2004-06-08 20:08:30 +00:00
Brian Gaeke
4b0b12c188 Add a TmpInstruction ctor that doesn't take a MCFI. 
llvm-svn: 14073
 2004-06-08 18:52:46 +00:00
Brian Gaeke
c6715bec89 Fix up some spacing & fix a typo in an assertion in cpValue2Value. 
llvm-svn: 14027
 2004-06-04 20:51:40 +00:00
Chris Lattner
c51b272047 This file is obsolete 
llvm-svn: 14005
 2004-06-04 00:15:21 +00:00
Brian Gaeke
4f0fc86456 Add new internal-global-symbol mapping info pass... may its life be short 
and sweet.

llvm-svn: 13983
 2004-06-03 05:03:37 +00:00
Brian Gaeke
e3a1c92896 Add new mapping info pass, when EmitMappingInfo is on. 
llvm-svn: 13981
 2004-06-03 05:03:01 +00:00
Brian Gaeke
ceb3e78152 Fix big mistake in my last checkin... the big question is, how did I ever 
get this to link before?

llvm-svn: 13980
 2004-06-03 05:03:00 +00:00
Brian Gaeke
a960c641e0 Add decl. for new mapping info pass factory method. 
llvm-svn: 13979
 2004-06-03 05:02:59 +00:00
Brian Gaeke
e3e792cefa Collapse together the abstract superclass TargetRegInfo and SparcV9RegInfo, its 
only concrete implementation.

llvm-svn: 13977
 2004-06-03 02:45:09 +00:00
Chris Lattner
42730da855 <alloca.h> on cygwin pulls in a ton of stuff (macros and function protos) 
that we REALLY don't want in the CBE code.

With this fix, the CBE passes all of the MultiSource tests on cygwin that
it does on linux.  Yaay!

llvm-svn: 13975
 2004-06-02 23:10:26 +00:00
Chris Lattner
74da010962 Adjust to new TM interface 
llvm-svn: 13954
 2004-06-02 05:56:04 +00:00
Chris Lattner
ccfec9c7fd Method has been inlined into all callers 
llvm-svn: 13953
 2004-06-02 05:55:48 +00:00
Chris Lattner
5ad9eaab1a Convert to the new TargetMachine interface. 
llvm-svn: 13952
 2004-06-02 05:55:25 +00:00
Chris Lattner
4e2777cb30 Stubs are no longer needed 
llvm-svn: 13951
 2004-06-02 05:53:52 +00:00
Chris Lattner
5ce60a188d Adjust to new TM interfaces 
llvm-svn: 13949
 2004-06-02 05:47:26 +00:00
Brian Gaeke
8b022564d2 There is no "mcff" here; delete the confusing comments that refer to it. 
llvm-svn: 13911
 2004-05-30 08:29:16 +00:00
Brian Gaeke
18006c7075 Transform an occurrence of if(...) { assert (0) }. 
llvm-svn: 13908
 2004-05-30 07:34:01 +00:00
Brian Gaeke
f2f7cc0d50 Reduce the amount of LLVM Values for which we save reg. allocator 
state. Also, save the state for the incoming register of each phi
node.

llvm-svn: 13906
 2004-05-30 07:08:43 +00:00
Brian Gaeke
7f4ad50481 Rename verifySavedState to dumpSavedState. Give it a new comment. 
Call it at a more appropriate point.

llvm-svn: 13905
 2004-05-30 04:22:24 +00:00
Brian Gaeke
b4f49d8da5 Insert machine instructions generated for Phi nodes into their 
corresponding MachineCodeForInstruction vectors.

I need to be able to get the register allocated for the thing which is
called PhiCpRes in this code; this should make that task easier, plus,
Phi nodes are no longer "special" in the sense that their
MachineCodeForInstruction is empty.

llvm-svn: 13904
 2004-05-30 03:33:49 +00:00
Brian Gaeke
8daa49f754 Remove unused #include. 
llvm-svn: 13899
 2004-05-29 23:26:13 +00:00
Brian Gaeke
7d68f2e9b0 Add comments. 
llvm-svn: 13898
 2004-05-29 23:10:20 +00:00
Brian Gaeke
3913fdf0e9 Trim whitespace. 
llvm-svn: 13897
 2004-05-29 22:49:51 +00:00
Brian Gaeke
608e0b76e1 Give InsertCodeForPhis() a new documentation comment. 
llvm-svn: 13896
 2004-05-29 22:20:59 +00:00
Brian Gaeke
403be90321 Give PhiCp nodes better names in many cases. 
Simplify InsertPhiElimInstructions(), and give it a better doxygen comment.

llvm-svn: 13880
 2004-05-28 19:34:00 +00:00
Brian Gaeke
2bd005cb45 Make debugging output with -print-machineinstrs more useful: always print out 
the transformed LLVM code which is the input to the instruction selector.

llvm-svn: 13879
 2004-05-28 19:33:59 +00:00
Chris Lattner
a49f11bec4 Fix the big regression that has been killing the nightly tester these last 
few days.  Apparently the old symbol table used to auto rename collisions in
the type symbol table and the new one does not.  It doesn't really make sense
for the new one to do so, so we just make the client do it.

llvm-svn: 13877
 2004-05-28 05:47:27 +00:00
Chris Lattner
75036dce04 Minor changes. Switch to a SymbolTable remove that does not take linear time 
llvm-svn: 13874
 2004-05-28 05:30:51 +00:00
Brian Gaeke
76a1ec7f00 Make comment lines stick out less. 
llvm-svn: 13858
 2004-05-27 21:41:48 +00:00
Chris Lattner
a1a78f0b68 Fix PR344: the incorrect remove was being used. 
llvm-svn: 13790
 2004-05-26 17:20:52 +00:00
Brian Gaeke
fd48b88dfa Add a (not very meaningful) default constructor for AllocInfo objects. 
llvm-svn: 13773
 2004-05-25 20:43:47 +00:00
Reid Spencer
fec48b0d9d Convert to SymbolTable's new iteration interface. 
llvm-svn: 13754
 2004-05-25 08:53:40 +00:00
Reid Spencer
65559ced22 Remove use of Type::TypeTy from an assert. It will go away soon. 
llvm-svn: 13748
 2004-05-25 08:50:52 +00:00
Chris Lattner
1e22b42cb6 Add support for accurate garbage collection to the LLVM code generators 
llvm-svn: 13696
 2004-05-23 21:23:35 +00:00
Chris Lattner
85f19c7b3f Add some notes to myself, no functional changes 
llvm-svn: 13695
 2004-05-23 21:23:12 +00:00
Chris Lattner
5862899c44 minor wording change 
llvm-svn: 13694
 2004-05-23 21:22:55 +00:00
Brian Gaeke
12ab4a0357 Fix a typo in a comment. 
llvm-svn: 13643
 2004-05-23 05:10:06 +00:00
Chris Lattner
b92b7d2050 Fix to make the CBE always emit comparisons inline. Hopefully this will 
fix the really bad code we're getting on PPC.

llvm-svn: 13609
 2004-05-20 20:25:50 +00:00
Brian Gaeke
ac9ce5d851 Fix a bug in outputting branches to constant PCs. Since the PC is supplied as 
a full 64-bit address, it must be adjusted to fit in the branch instruction's
immediate field. (This is only used in the reoptimizer, for now.)

llvm-svn: 13608
 2004-05-20 07:43:40 +00:00
Brian Gaeke
1d6c0881ce Minor simplification: eliminate a dyn_cast. 
Fix a typo in a debug message.

llvm-svn: 13607
 2004-05-19 21:30:01 +00:00
Brian Gaeke
e5736bf986 Don't keep track of references to LLVM BasicBlocks while emitting; use 
MachineBasicBlocks instead.

llvm-svn: 13568
 2004-05-14 06:54:58 +00:00
Brian Gaeke
a25a10e73b Support MachineBasicBlock operands on RawFrm instructions. 
Get rid of separate numbering for LLVM BasicBlocks; use the automatically
generated MachineBasicBlock numbering.

llvm-svn: 13567
 2004-05-14 06:54:57 +00:00
Brian Gaeke
a17301ca8b Generate branch machine instructions with MachineBasicBlock operands instead of 
LLVM BasicBlock operands.

llvm-svn: 13566
 2004-05-14 06:54:56 +00:00