* Pull a bunch of frame and constant pool state out into a new
  MachineFunctionInfo class
* Add a new FunctionFrameInfo object

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5163 91177308-0d34-0410-b5e6-96231b3b80d8

Initial check in of MachineFunctionPass.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5162 91177308-0d34-0410-b5e6-96231b3b80d8

Add capability to turn on the -no-fp-elim option

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5161 91177308-0d34-0410-b5e6-96231b3b80d8

Add another simple call

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5160 91177308-0d34-0410-b5e6-96231b3b80d8

Test argument passing

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5159 91177308-0d34-0410-b5e6-96231b3b80d8

Add a variable sized alloca to test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5158 91177308-0d34-0410-b5e6-96231b3b80d8

Add diagnostic output

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5157 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate direct access to TargetData structure

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5156 91177308-0d34-0410-b5e6-96231b3b80d8

Initial fp test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5155 91177308-0d34-0410-b5e6-96231b3b80d8

* Simplify Value classes
* Add initial support for FP constants
* Add initial FP support for several instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5154 91177308-0d34-0410-b5e6-96231b3b80d8

* Use new pseudo instr form for instructions
* Mark CALLpcrel as a RawFrm instruction as required
* Eliminate invalid BSWAP16 instruction
* Add xchg instructions
* Add initial support for FP instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5153 91177308-0d34-0410-b5e6-96231b3b80d8

Add FP instr prefix byte support
Add Pseudo instr class

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5152 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for FP prefixes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5151 91177308-0d34-0410-b5e6-96231b3b80d8

Add printer support for Pseudo instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5150 91177308-0d34-0410-b5e6-96231b3b80d8

Initial support for FP registers

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5149 91177308-0d34-0410-b5e6-96231b3b80d8

New simpler spill interface

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5148 91177308-0d34-0410-b5e6-96231b3b80d8

Adjustments to match new simpler spill interface

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5147 91177308-0d34-0410-b5e6-96231b3b80d8

Free machine code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5146 91177308-0d34-0410-b5e6-96231b3b80d8

Adjust to simpler spill interface
Only spill and reload caller saved registers that are actually modified.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5145 91177308-0d34-0410-b5e6-96231b3b80d8

Adjustments to work with the simpler spill interface

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5144 91177308-0d34-0410-b5e6-96231b3b80d8

Remove dependency on SSARegMap.h by MachineFunction.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5143 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify spill interface methods

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5142 91177308-0d34-0410-b5e6-96231b3b80d8

Add comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5141 91177308-0d34-0410-b5e6-96231b3b80d8

Add abstract frame index capability

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5140 91177308-0d34-0410-b5e6-96231b3b80d8

Remove default ctor

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5139 91177308-0d34-0410-b5e6-96231b3b80d8

*** empty log message ***

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5138 91177308-0d34-0410-b5e6-96231b3b80d8

Remove dependency on SSARegMap.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5137 91177308-0d34-0410-b5e6-96231b3b80d8

Fix compilation on GCC 3.2

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5136 91177308-0d34-0410-b5e6-96231b3b80d8

Don't try to buidl jello

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5135 91177308-0d34-0410-b5e6-96231b3b80d8

Fixes to compile with GCC 3.2

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5134 91177308-0d34-0410-b5e6-96231b3b80d8

Jello is now part of LLI

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5133 91177308-0d34-0410-b5e6-96231b3b80d8

Substantial fixes to live range handling, fixing several problems, getting
strtol to not miscompile, and fixing bug: 2002-12-23-LocalRAProblem.llx

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5132 91177308-0d34-0410-b5e6-96231b3b80d8

Changes to allow for a configurable target machine that allows big endian and/or long pointer operation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5131 91177308-0d34-0410-b5e6-96231b3b80d8

Changes to compile with GCC 2.96
Changes to support configurable pointer size and endianness

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5130 91177308-0d34-0410-b5e6-96231b3b80d8

Sparc is not little endian

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5129 91177308-0d34-0410-b5e6-96231b3b80d8

Allow the target machines to specify endianness and pointer size

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5128 91177308-0d34-0410-b5e6-96231b3b80d8

Initial checkin

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5127 91177308-0d34-0410-b5e6-96231b3b80d8

Initial checkin of new LLI with JIT compiler

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5126 91177308-0d34-0410-b5e6-96231b3b80d8

Substantial changes to refactor LLI to incorporate both the Jello JIT and
the traditional LLI interpreter

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5125 91177308-0d34-0410-b5e6-96231b3b80d8

X86 target machine is now parameterizable

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5124 91177308-0d34-0410-b5e6-96231b3b80d8

Testcases for bugfixes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5123 91177308-0d34-0410-b5e6-96231b3b80d8

Jello is now part of LLI

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5122 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5121 91177308-0d34-0410-b5e6-96231b3b80d8

New files for miscompilation detection

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5120 91177308-0d34-0410-b5e6-96231b3b80d8

Implement the start of the miscompilation detection stuff

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5119 91177308-0d34-0410-b5e6-96231b3b80d8

Remove temp files

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5118 91177308-0d34-0410-b5e6-96231b3b80d8

Jello is going away

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5117 91177308-0d34-0410-b5e6-96231b3b80d8

Fix compilation on gcc 2.96

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5116 91177308-0d34-0410-b5e6-96231b3b80d8

Add definition for the bswap instruction

*** FIX: the encoding of the SUB instruction

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5115 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for the bswap instruction

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5114 91177308-0d34-0410-b5e6-96231b3b80d8

Fix compilation on GCC 2.96

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5113 91177308-0d34-0410-b5e6-96231b3b80d8

brg

Add statistic for number of bytes of data area initialized.
We used this statistic in collecting data for the paper, but I forgot
to commit it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5112 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for isnan

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5111 91177308-0d34-0410-b5e6-96231b3b80d8

Add stats output

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5110 91177308-0d34-0410-b5e6-96231b3b80d8

Fix warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5109 91177308-0d34-0410-b5e6-96231b3b80d8

CBW doesn't modify AL

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5108 91177308-0d34-0410-b5e6-96231b3b80d8

fix warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5107 91177308-0d34-0410-b5e6-96231b3b80d8

* Fix several register aliasing bugs
* Add a new option to eliminate spilling of registers that are only used
  within a basic block.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5106 91177308-0d34-0410-b5e6-96231b3b80d8

Print argc as well as argv

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5105 91177308-0d34-0410-b5e6-96231b3b80d8

Don't force setCC instructions into AL

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5104 91177308-0d34-0410-b5e6-96231b3b80d8

Implicit defs/uses list may be empty.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5103 91177308-0d34-0410-b5e6-96231b3b80d8

Add comments, switch uses/defs to match InstrInfo.def file

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5102 91177308-0d34-0410-b5e6-96231b3b80d8

Add reg clobber list for direct calls
Represent empty use/def list as a null pointer

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5101 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify interface to remove virtual function references

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5100 91177308-0d34-0410-b5e6-96231b3b80d8

Use new reginfo interface

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5099 91177308-0d34-0410-b5e6-96231b3b80d8

Update to use new interface for register info

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5098 91177308-0d34-0410-b5e6-96231b3b80d8

New file

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5097 91177308-0d34-0410-b5e6-96231b3b80d8

Add prolog/epilog spills/reloads to counters
Move X86 specific alignment gunk to X86 files

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5096 91177308-0d34-0410-b5e6-96231b3b80d8

Round number of bytes allocated on the stack up to a multiple of 4 so that the
stack remains aligned

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5095 91177308-0d34-0410-b5e6-96231b3b80d8

Local register allocator is now stable enough for use, it passes all tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5094 91177308-0d34-0410-b5e6-96231b3b80d8

Fix many bugs, regallocator now saves callee-save registers instead of target

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5093 91177308-0d34-0410-b5e6-96231b3b80d8

Register allocator is responsible for spilling callee saved regs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5092 91177308-0d34-0410-b5e6-96231b3b80d8

Make testcase return 0 on success

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5091 91177308-0d34-0410-b5e6-96231b3b80d8

Build add instructions of the correct form!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5090 91177308-0d34-0410-b5e6-96231b3b80d8

Add dummy implementation of __main

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5089 91177308-0d34-0410-b5e6-96231b3b80d8

Two fixes:
  * Only load incoming arguments into virtual registers once at the
    beginning of the function
  * Assign different virtual registers to each reference to constants/globals

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5088 91177308-0d34-0410-b5e6-96231b3b80d8

Fix prolog/epilog in the presence of alloca

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5087 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure stack manipulation refers to ESP the right number of times

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5086 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase for printing out arguments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5085 91177308-0d34-0410-b5e6-96231b3b80d8

Add some special cases to make common getelementptr cases easier to read/faster

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5084 91177308-0d34-0410-b5e6-96231b3b80d8

Finish implementation of alias list impl

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5083 91177308-0d34-0410-b5e6-96231b3b80d8

* Fix a gross X86 hack that was intended to avoid allocating SP and BP
* Implement register alias set support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5082 91177308-0d34-0410-b5e6-96231b3b80d8

Keep the stack frame aligned.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5081 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for register alias set description

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5080 91177308-0d34-0410-b5e6-96231b3b80d8

Add mechanism to select register allocator to use

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5079 91177308-0d34-0410-b5e6-96231b3b80d8

Initial checkin of "local" register allocator.  Bugs are still present.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5078 91177308-0d34-0410-b5e6-96231b3b80d8

Try #2 to get alias set stuff to work

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5077 91177308-0d34-0410-b5e6-96231b3b80d8

Add comments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5076 91177308-0d34-0410-b5e6-96231b3b80d8

Add info about register aliases, add prototype for createLocalRegisterAllocator

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5075 91177308-0d34-0410-b5e6-96231b3b80d8

Add info about register file aliasing

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5074 91177308-0d34-0410-b5e6-96231b3b80d8

Add information about register file aliasing

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5073 91177308-0d34-0410-b5e6-96231b3b80d8

Add call clobber info

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5072 91177308-0d34-0410-b5e6-96231b3b80d8

Rename createSimpleX86RegisterAllocator to createSimpleRegisterAllocator

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5071 91177308-0d34-0410-b5e6-96231b3b80d8

Rename createSimpleX86RegisterAllocator to createSimpleRegisterAllocator.
Remvoe some dead code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5070 91177308-0d34-0410-b5e6-96231b3b80d8

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5069 91177308-0d34-0410-b5e6-96231b3b80d8

Use -Wl,-x instead of -s: it is more portable, and in particular,
is needed on BSD (MacOS).
Also, use -Ldir instead of -L dir on the link line.  Same reason...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5068 91177308-0d34-0410-b5e6-96231b3b80d8

Some simpliciations to the spill/reload interface

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5067 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify PHI node elimination significantly by doing it as a prepass to
register allocation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5066 91177308-0d34-0410-b5e6-96231b3b80d8

Correct the setting of Def flags on registers that are modified!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5065 91177308-0d34-0410-b5e6-96231b3b80d8

Variety of small or trivial simplifications to the code, completely eliminated
the dependence on PhysRegClassMap

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5064 91177308-0d34-0410-b5e6-96231b3b80d8