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2792 Commits

Author SHA1 Message Date
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
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
38bc372a49 Add hack to only consider indirect calls indirect if they do more than cast 
their source function

llvm-svn: 4723
 2002-11-17 22:17:12 +00:00
Chris Lattner
322901a840 Add MaxSCC statistics 
llvm-svn: 4722
 2002-11-17 22:16:28 +00:00
Chris Lattner
acfc11664a Count CallInsts correctly, remove unneccesary initializers 
S: ----------------------------------------------------------------------

llvm-svn: 4721
 2002-11-17 22:15:40 +00:00
Chris Lattner
8ac4eea84b Remove only uses of markDef/markDefAndUse methods 
llvm-svn: 4719
 2002-11-17 22:14:08 +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
Dinakar Dhurjati
9da9f0534e Gives the count for various instructions. 
llvm-svn: 4706
 2002-11-13 18:22:13 +00:00
Vikram S. Adve
2dfc11dc3b Pass to compute various statisics related to DSGraphs. 
For now, this just computes the #indirect call sites and
the avg. #callees per indirect call site (actually it prints
both totals and the average is their ratio).

llvm-svn: 4705
 2002-11-13 15:41:00 +00:00
Chris Lattner
996bf14a4f Fix bug: 2002-11-13-PointerFunction.ll 
This should fix codegen on vortex to work much better

llvm-svn: 4704
 2002-11-13 06:54:20 +00:00
Chris Lattner
b257e87db5 Inline graphs from outside the SCC into the SCC before SCC resolution starts 
llvm-svn: 4701
 2002-11-12 15:58:08 +00:00
Chris Lattner
cd37857ad0 Fix two bugs: 
* The globals vector was getting broken and unsorted, this caused vortex
   to get badly pessimized
 * Node offset handling was being handled really poorly, and in particular
   we were not merging types with offsets right.  This causes several graphs
   to be non-merged.

llvm-svn: 4699
 2002-11-12 07:20:45 +00:00
Chris Lattner
3b303e5ab8 Fix bug 
llvm-svn: 4697
 2002-11-11 22:23:56 +00:00
Chris Lattner
f56a5282d2 Handle a mismatch between # function args and call site args 
llvm-svn: 4696
 2002-11-11 21:36:05 +00:00
Chris Lattner
6fcb6f1472 Elimiante calls to a node with nothing in it. 
llvm-svn: 4695
 2002-11-11 21:35:38 +00:00
Chris Lattner
0052b69a32 Complete rewrite of BU code to use Tarjan's SCC finding algorithm to drive 
the algorithm instead of hand coded depth first iteration

llvm-svn: 4694
 2002-11-11 21:35:13 +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
Chris Lattner
fb44e1ff28 Mark stuff reachable by _AUX_ calls as incomplete in the BU graph 
llvm-svn: 4690
 2002-11-11 03:36:55 +00:00
Chris Lattner
f05d126a68 Fix infinite loop in the BU algorithm. Unfortunately this dies a serious 
death when handling moderately sized SCC's, but what can you do

llvm-svn: 4689
 2002-11-11 00:01:34 +00:00
Chris Lattner
a7302da4e8 Print the right call set size 
llvm-svn: 4688
 2002-11-11 00:01:02 +00:00
Chris Lattner
41bf6e1bc6 Use call site mergeWith method to simplify code 
llvm-svn: 4687
 2002-11-11 00:00:46 +00:00
Chris Lattner
0fe1af497d Fix a bug that could trigger when varargs call sites had non-matching number of arguments 
llvm-svn: 4683
 2002-11-10 07:46:08 +00:00
Chris Lattner
928e9c012b * Dramatically rework liveness evaluation. 
* Implement the first step of the Globals graph: Deleting nodes from function
  graphs.  In practice, these nodes need to be moved to the globals graph, but
  this will be taken care of later.  Note that the graphs computed right now are
  not strictly correct!

llvm-svn: 4681
 2002-11-10 06:59:55 +00:00
Chris Lattner
f5667969d1 Honor the shouldPrintAuxCalls flag 
llvm-svn: 4678
 2002-11-10 06:53:59 +00:00
Chris Lattner
2597c1158f Initialize PrintAuxCalls member 
llvm-svn: 4677
 2002-11-10 06:53:38 +00:00
Chris Lattner
a30663385f * Bottom-Up graphs print the Aux call vector 
* Significantly improve DEBUG output
* Aggressively fold calls together if we inlined a graph that provides
  call nodes.
* Add a bailout if the current graph has over 200 call nodes in it, this is
  a really whacky case that should never happen.

llvm-svn: 4675
 2002-11-10 06:52:47 +00:00
Chris Lattner
96d1bfd014 Fix testcase: FunctionResolve/2002-11-09-ExternFn.ll 
llvm-svn: 4668
 2002-11-10 03:36:55 +00:00
Chris Lattner
1fe76d2385 eliminate the ability to remove global nodes from deadNodeElminate... for now. 
This slows stuff down a bit, but it should get much better before it gets any
worse.

llvm-svn: 4666
 2002-11-09 22:07:02 +00:00
Chris Lattner
d9c732c581 Remove obsolete code 
llvm-svn: 4665
 2002-11-09 21:41:44 +00:00
Chris Lattner
20d264e16b Fix logic 
llvm-svn: 4664
 2002-11-09 21:40:58 +00:00