llvm-6502/lib/CodeGen
Alkis Evlogimenos 39a0d5c112 Too many changes in one commit:
1. LiveIntervals now implement a 4 slot per instruction model. Load,
   Use, Def and a Store slot. This is required in order to correctly
   represent caller saved register clobbering on function calls,
   register reuse in the same instruction (def resues last use) and
   also spill code added later by the allocator. The previous
   representation (2 slots per instruction) was insufficient and as a
   result was causing subtle bugs.

2. Fixes in spill code generation. This was the major cause of
   failures in the test suite.

3. Linear scan now has core support for folding memory operands. This
   is untested and not enabled (the live interval update function does
   not attempt to fold loads/stores in instructions).

4. Lots of improvements in the debugging output of both live intervals
   and linear scan. Give it a try... it is beautiful :-)

In summary the above fixes all the issues with the recent reserved
register elimination changes and get the allocator very close to the
next big step: folding memory operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11654 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-20 06:15:40 +00:00
..
InstrSched Eliminate operator[] is deprecated warnings 2004-02-18 16:43:51 +00:00
ModuloScheduling Put all LLVM code into the llvm namespace, as per bug 109. 2003-11-11 22:41:34 +00:00
SelectionDAG Put all LLVM code into the llvm namespace, as per bug 109. 2003-11-11 22:41:34 +00:00
IntrinsicLowering.cpp By default, llvm.setjmp/llvm.longjmp intrinsics get lowered to their libc counterparts 2004-02-15 22:24:51 +00:00
LiveIntervalAnalysis.cpp Too many changes in one commit: 2004-02-20 06:15:40 +00:00
LiveIntervalAnalysis.h Too many changes in one commit: 2004-02-20 06:15:40 +00:00
LiveVariables.cpp Fix an iterator invalidation problem. :( 2004-02-19 18:32:29 +00:00
MachineBasicBlock.cpp Add a MachineBasicBlock::getParent() method 2004-02-19 16:13:54 +00:00
MachineCodeEmitter.cpp Put all LLVM code into the llvm namespace, as per bug 109. 2003-11-11 22:41:34 +00:00
MachineCodeForInstruction.cpp Change MachineBasicBlock's vector of MachineInstr pointers into an 2004-02-12 02:27:10 +00:00
MachineFunction.cpp Add LeakDetection to MachineInstr. 2004-02-16 07:17:43 +00:00
MachineInstr.cpp Fix a __LONG__ term annoyance of mine: symbolic registers weren't being printed 2004-02-19 16:17:08 +00:00
MachineInstrAnnot.cpp Put all LLVM code into the llvm namespace, as per bug 109. 2003-11-11 22:41:34 +00:00
Makefile Move InstrSelection into lib/Target/Sparc, as it's sparc specific 2004-01-09 06:24:06 +00:00
Passes.cpp finegrainify namespacification 2003-12-28 07:59:53 +00:00
PHIElimination.cpp Use newly added next() and prior() utility functions. 2004-02-14 01:18:34 +00:00
PrologEpilogInserter.cpp Make dense maps keyed on physical registers smallerusing 2004-02-15 21:37:17 +00:00
RegAllocLinearScan.cpp Too many changes in one commit: 2004-02-20 06:15:40 +00:00
RegAllocLocal.cpp Fix problem fusing spill code into instructions: we didn't update the live 2004-02-19 18:34:02 +00:00
RegAllocSimple.cpp Rename reloads/spills to loads/stores. 2004-02-19 06:19:09 +00:00
TwoAddressInstructionPass.cpp Beautify debug output. 2004-02-18 00:35:06 +00:00