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Author SHA1 Message Date
Chris Lattner 18a08e702d 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
Chris Lattner 9a60c532a8 Make sure that we destroy the MBB's, with all of their instructions, before 
any other data structures

llvm-svn: 14524
 2004-07-01 06:29:07 +00:00
Chris Lattner c85535c8be Now that MachineFunction/MachineBasicBlock keep a mapping of blocks to ID #'s 
use them instead of a local LiveVariables numbering

llvm-svn: 14523
 2004-07-01 06:15:32 +00:00
Chris Lattner 449af59c7e Change MBB autonumber a bit to get the reverse mapping as well as a forward 
mapping

llvm-svn: 14521
 2004-07-01 06:02:27 +00:00
Chris Lattner a47455dbd3 Instance var no longer exists 
llvm-svn: 14520
 2004-07-01 06:02:07 +00:00
Chris Lattner 6c375e4926 Start using MBB numbers directly instead of going through the live variables 
map.

llvm-svn: 14518
 2004-07-01 04:29:47 +00:00
Chris Lattner 7c77fd50e7 Instead of building a private numbering of MBB's use brg's nifty auto-numbering. 
Also convert df_iterator -> df_ext_iterator for subsequent stuff I'm doing.

llvm-svn: 14517
 2004-07-01 04:24:29 +00:00
Misha Brukman b9125f462d Fix indentation to be 2 spaces. 
llvm-svn: 14512
 2004-06-30 22:11:03 +00:00
Misha Brukman 0648a903c7 * 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 299fa1b147 * 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 fee5a22f8a * 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 04f07b4589 visitSetCondInst() takes a parameter of type `SetCondInst' 
llvm-svn: 14508
 2004-06-30 21:47:40 +00:00
Misha Brukman 2b9106f808 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 351646f31e * 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 c794feab51 * 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 d409669877 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 7454c6fff0 * 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 5459dfb47b Only allocate non-volatile registers R13-31 (for now). 
llvm-svn: 14500
 2004-06-29 23:35:32 +00:00
Misha Brukman 4efe3da794 Lower ConstantExpressions before the code generator. 
llvm-svn: 14497
 2004-06-29 23:33:20 +00:00
Reid Spencer fddebf7ff2 Remove files no longer needed. ConstantReader and InstructionReader were 
integrated into Reader. Parser.* was just a bad idea. AnalyzerInternals.h
is no longer needed. ReaderPrimitives.h was integrated into Reader.h and
Reader.cpp. Dumper.cpp was integrated into Analyzer.cpp. ReaderInternals.h
became Reader.h. AnalyzerWrappers.cpp was integerated into
ReaderWrappers.cpp

llvm-svn: 14496
 2004-06-29 23:32:41 +00:00
Reid Spencer f4ec6383c0 This is a slimming down of the previous ReaderInternals.h that just 
declares the BytecodeReader class.

llvm-svn: 14495
 2004-06-29 23:31:01 +00:00
Reid Spencer 284b7c7174 MAJOR REWRITE. 
- stop passing Buf/BufEnd to every function (now member vars)
- internalize things that used to be in a header file that no one else
  included/needed.
- Remove defunct BCR_TRACE lines
- Standardize error handling with the PARSE_ERROR macro.
- Integrate ConstantReader.cpp and InstructionReader.cpp and reorgnize
  the definition order so that gcc has a chance at optimizing this module
- Standardize case and style of method names.
- Eliminate unneeded header files
- Prepare for Type != Value (bug122) change by splitting Types into their
  own data structures.
- Implement the BytecodeHandler interface calls.
- Provide default implementation of BytecodeHandler interface.

llvm-svn: 14494
 2004-06-29 23:29:38 +00:00
Reid Spencer 891cb9d925 Adjustments to allow Bytecode Reading to support the BytecodeHandler 
interface which is called by the reader if a BytecodeHandler is provided.

llvm-svn: 14493
 2004-06-29 23:24:14 +00:00
Reid Spencer 351f6bf714 Merge Dumper.cpp and AnalyzerWrappers.cpp into this file. Also, adjust the 
dumping facility to produce useful output.

llvm-svn: 14492
 2004-06-29 23:23:12 +00:00
Reid Spencer c7b9419add Analyzer moved to ../Reader directory. 
llvm-svn: 14491
 2004-06-29 23:21:53 +00:00
Reid Spencer 75923a4f93 Remove newly defunct Analyzer directory. 
llvm-svn: 14490
 2004-06-29 23:21:16 +00:00
Misha Brukman 887fd23dfc Fix associativity of parameters to assert(): now it actually makes sense. 
llvm-svn: 14483
 2004-06-29 19:43:20 +00:00
Misha Brukman c968b87d94 Convert tabs to spaces. 
llvm-svn: 14482
 2004-06-29 19:28:53 +00:00
Misha Brukman 802403723b * 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 811f5c2c4c Assembly syntax/comment fixes by Nate Begeman. 
llvm-svn: 14479
 2004-06-29 17:13:26 +00:00
Vikram S. Adve 1097ed8467 Restoring this file. 
llvm-svn: 14478
 2004-06-29 14:20:27 +00:00
Chris Lattner c5f9b356af 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 e6e1b48023 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 4cda555346 In line with the previous patch, do not assert out if analyzing a dead basic block. 
llvm-svn: 14475
 2004-06-29 07:16:23 +00:00
Chris Lattner 49b34f3f51 Do not dereference end iterators. It hurts when you do that. 
llvm-svn: 14474
 2004-06-29 06:56:51 +00:00
Chris Lattner 1a920d49f6 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 15c10883ff Can't print out machine code before it is constructed. 
llvm-svn: 14472
 2004-06-28 21:16:57 +00:00
Misha Brukman 3aad397726 Fix the assembly opcode on LOADLoAddr, courtesy of Nate Begeman. 
llvm-svn: 14470
 2004-06-28 18:27:08 +00:00
Misha Brukman 767fa11096 Set isBranch and isTerminator bits on all branch instructions. 
llvm-svn: 14469
 2004-06-28 18:23:35 +00:00
Misha Brukman 2f0cda8b2a 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 75985d725c 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 8455e0177b 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 9cb88aae40 Fix spacing around function arguments. 
llvm-svn: 14463
 2004-06-28 15:53:27 +00:00
Chris Lattner 26dff501a4 Initial checkin of a simple mod/ref analysis for global variables. This is 
still overly conservative and uses very simple data structures, but it is a
start, and allows elimination of a lot of loads.

llvm-svn: 14462
 2004-06-28 06:33:13 +00:00
Chris Lattner 3b11d3b294 Remove unused file 
llvm-svn: 14460
 2004-06-28 00:46:58 +00:00
Chris Lattner 924882f775 These passes are long dead/obsolete. They never worked in the first place 
and are a maintenence burden.  Nuke nuke nuke

llvm-svn: 14457
 2004-06-28 00:44:18 +00:00
Chris Lattner 9b55c11c56 Moved IPModRef out of the public include dir 
llvm-svn: 14455
 2004-06-28 00:41:23 +00:00
Chris Lattner 32c79788cc Move DependenceGraph.* to lib/Analysis/DataStructure 
llvm-svn: 14452
 2004-06-28 00:32:33 +00:00
Chris Lattner 135fb4be7c Moving to lib/Analysis/DataStructure 
llvm-svn: 14450
 2004-06-28 00:29:42 +00:00
Chris Lattner dfe8056225 Move MemoryDepAnalysis.h into lib/Analysis/DataStructure 
llvm-svn: 14448
 2004-06-28 00:27:16 +00:00