Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.

llvm-svn: 31380

llvm-svn: 30384

DLL* linkages got full (I hope) codegeneration support in C & both x86
assembler backends.
External weak linkage added for future use, we don't provide any
codegeneration, etc. support for it.

llvm-svn: 30374

llvm-svn: 30292

llvm-svn: 30277

llvm-svn: 30240

linking the program on the fly.

llvm-svn: 29721

llvm-svn: 29351

llvm-svn: 29345

llvm-svn: 29334

  method.
- Added synchronizeICache() to TargetJITInfo. It is called after each block
  of code is emitted to flush the icache. This ensures correct execution
  on targets that have separate dcache and icache.
- Added PPC / Mac OS X specific code to do icache flushing.

llvm-svn: 29276

llvm-svn: 29057

llvm-svn: 28908

llvm-svn: 28827

llvm-svn: 28636

llvm-svn: 28321

object is never deleted though.

llvm-svn: 28256

people aren't reusing machine code buffers at all.

llvm-svn: 28228

Finally, implement ExecutionEngine::freeMachineCodeForFunction.

llvm-svn: 28227

allocation policies and much more.  All this complexity, and we have no
functionality change, woo! :)

llvm-svn: 28225

llvm-svn: 28179

llvm-svn: 28087

simplifies the MachineCodeEmitter interface just a little bit and makes
BasicBlocks work like constant pools and jump tables.

llvm-svn: 28082

Refactor TargetMachine, pushing handling of TargetData into the target-specific subclasses.  This has one caller-visible change: getTargetData() now returns a pointer instead of a reference.

This fixes PR 759.

llvm-svn: 28074

llvm-svn: 28073

llvm-svn: 28071

llvm-svn: 28069

llvm-svn: 28066

1. Change several methods in the MachineCodeEmitter class to be pure virtual.
2. Suck emitConstantPool/initJumpTableInfo into startFunction, removing them
   from the MachineCodeEmitter interface, and reducing the amount of target-
   specific code.
3. Change the JITEmitter so that it allocates constantpools and jump tables
   *right* next to the functions that they belong to, instead of in a separate
   pool of memory.  This makes all memory for a function be contiguous, and
   means the JITEmitter only tracks one block of memory now.

llvm-svn: 28065

just have the JIT malloc them.

llvm-svn: 28062

llvm-svn: 28061

code emission location into the base class, instead of being in the derived classes.

This change means that low-level methods like emitByte/emitWord now are no longer
virtual (yaay for speed), and we now have a framework to support growable code
segments.  This implements feature request #1 of PR469.

llvm-svn: 28059

llvm-svn: 28055

llvm-svn: 27967

x86 and ppc for 100% dense switch statements when relocations are non-PIC.
This support will be extended and enhanced in the coming days to support
PIC, and less dense forms of jump tables.

llvm-svn: 27947

llvm-svn: 26079

value/alignment pair for each constant, keep a value/offset pair.

llvm-svn: 26078

llvm-svn: 26076

llvm-svn: 25855

llvm-svn: 25516