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133 Commits

Author SHA1 Message Date
Alkis Evlogimenos
efe995a406 Remove unecessary if statements when looping on ImplicitDefs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10444 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-13 01:20:58 +00:00
Alkis Evlogimenos
a327e7fea9 Make assertion stricter. Since the source operands are allocated at 
this point, the second operand must be a physical register (it cannot
be a virtual one).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10292 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-05 11:31:39 +00:00
Brian Gaeke
d0fde30ce8 Put all LLVM code into the llvm namespace, as per bug 109. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9903 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-11-11 22:41:34 +00:00
Chris Lattner
3e43026095 standardize command line option names 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9496 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-24 20:05:58 +00:00
John Criswell
b576c94c15 Added LLVM project notice to the top of every C++ source file. 
Header files will be on the way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9298 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-20 19:43:21 +00:00
Alkis Evlogimenos
73ff5120eb Change MRegisterDesc::AliasSet, TargetInstrDescriptor::ImplicitDefs 
and TargetInstrDescriptor::ImplicitUses to always point to a null
terminated array and never be null. So there is no need to check for
pointer validity when iterating over those sets. Code that looked
like:

if (const unsigned* AS = TID.ImplicitDefs) {
  for (int i = 0; AS[i]; ++i) {
    // use AS[i]
  }
}

was changed to:

for (const unsigned* AS = TID.ImplicitDefs; *AS; ++AS) {
  // use *AS
}


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8960 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-08 05:20:08 +00:00
Chris Lattner
41822c790f Fix bug: Jello/2003-08-23-RegisterAllocatePhysReg.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8095 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-23 23:49:42 +00:00
Chris Lattner
128c2aa493 Fix bug: Jello/2003-08-15-AllocaAssertion.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7916 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-17 18:01:15 +00:00
Brian Gaeke
53b99a0fe7 Fix typo in comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7906 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-15 21:19:25 +00:00
Brian Gaeke
19df3876e6 Factory methods for FunctionPasses now return type FunctionPass *. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7823 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-13 18:18:15 +00:00
Chris Lattner
8c8194500d Fix bugs handling ESP in alloca references 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7591 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-05 04:13:58 +00:00
Chris Lattner
d9ac6a7d3b Revert previous change, and be really anal about what physical registers can do. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7588 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-05 00:49:09 +00:00
Chris Lattner
27615d7f21 Don't bother calculating info unless its needed. May reduce number of stack slots created. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7584 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-04 23:42:37 +00:00
Chris Lattner
b8822ad224 * Fix spelling of 'necessary' 
* Add a lot more DEBUG output, which is better structured than before
* Fix bug: Jello/2003-08-04-PhysRegLiveFailure.llx


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7583 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-04 23:36:39 +00:00
Chris Lattner
4cc662b0ef Set debug types 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7533 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-03 21:47:31 +00:00
Chris Lattner
d3fd79f699 Wrap at 80 columns 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7503 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-03 13:49:03 +00:00
Chris Lattner
a11136b16c Move DEBUG to Debug.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7497 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-01 22:21:34 +00:00
Vikram S. Adve
5f2180c533 (1) Added special register class containing (for now) %fsr. 
Fixed spilling of %fcc[0-3] which are part of %fsr.

(2) Moved some machine-independent reg-class code to class TargetRegInfo
    from SparcReg{Class,}Info.

(3) Renamed MachienOperand::opIsDef to MachineOperand::opIsDefOnly()
    and related functions and flags.  Fixed several bugs where only
    "isDef" was being checked, not "isDefAndUse".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6341 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-27 00:05:23 +00:00
Chris Lattner
d5725631c5 Fix tab infestation! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6109 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-12 03:54:14 +00:00
Misha Brukman
15b55e20cc Debug output should go to cerr, not cout, because that's where bytecode goes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6002 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-04 22:51:30 +00:00
Chris Lattner
0416d2a70a Fix problems with empty basic blocks 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5326 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-16 18:06:43 +00:00
Chris Lattner
3501feab81 Rename MachineInstrInfo -> TargetInstrInfo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5272 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-14 22:00:31 +00:00
Chris Lattner
91a452b382 * Convert to use LiveVariable analysis 
* Convert to use PHIElimination pass
* Don't spill values which have just been reloaded (big win reducing spills)
* Add experimental support for eliminating spills before TwoAddress
  instructions.  It currently is broken so it is #ifdef'd out.
* Use new "is terminator" flag on instructions instead of looking for
  branches and returns explicitly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5219 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-13 00:25:40 +00:00
Chris Lattner
eb24db9727 Rename FunctionFrameInfo to MachineFrameInfo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5200 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-28 21:08:26 +00:00
Chris Lattner
580f9be7ff * Convert to be a MachineFunctionPass instance 
* Use new FunctionFrameInfo object to manage stack slots instead of doing
  it directly
* Adjust to new MRegisterInfo API
* Don't take a TM as a ctor argument
* Don't keep track of which callee saved registers are modified
* Don't emit prolog/epilog code or spill/restore code for callee saved regs
* Use new allocation_order_begin/end iterators to simplify dramatically the
  logic for picking registers to allocate
* Machine PHI nodes can no longer contain constant arguments


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5195 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-28 20:40:43 +00:00
Chris Lattner
ff863ba610 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
 2002-12-25 05:05:46 +00:00
Chris Lattner
0eb172cc4a 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
 2002-12-24 00:04:55 +00:00
Chris Lattner
82bee0f2c8 * 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
 2002-12-18 08:14:26 +00:00
Chris Lattner
e7d361d15a Use new reginfo interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5099 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-17 04:19:40 +00:00
Chris Lattner
86c69a6cbe 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
 2002-12-17 03:16:10 +00:00
Chris Lattner
ae64043737 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
 2002-12-17 02:50:10 +00:00
Chris Lattner
c21be922bf * 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
 2002-12-16 17:44:42 +00:00
Chris Lattner
b74e83c898 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
 2002-12-16 16:15:28 +00:00