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* Add grow() member that grows the maps when the number of virtualAlkis Evlogimenos2004-05-291-2/+6
| | | | | | | registers in the function has changed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13893 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a spiller option to llc. A simple spiller will come soon. When we get ↵Alkis Evlogimenos2004-03-011-1/+8
| | | | | | CFG in the machine code represenation a global spiller will also be possible. Also document the linear scan register allocator but mark it as experimental for now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12062 91177308-0d34-0410-b5e6-96231b3b80d8
* Add the long awaited memory operand folding support for linear scanAlkis Evlogimenos2004-03-011-0/+14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12058 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename member function to be consistent with the rest.Alkis Evlogimenos2004-02-271-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11898 91177308-0d34-0410-b5e6-96231b3b80d8
* Add DenseMap template and actually use it for for mapping virtual regsAlkis Evlogimenos2004-02-251-17/+13
| | | | | | | to objects. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11840 91177308-0d34-0410-b5e6-96231b3b80d8
* Move machine code rewriter and spiller outside the registerAlkis Evlogimenos2004-02-241-0/+2
| | | | | | | | | | | | allocator. The implementation is completely rewritten and now employs several optimizations not exercised before. For example for 164.gzip we have 997 loads and 699 stores vs the 1221 loads and 880 stores we have before. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11798 91177308-0d34-0410-b5e6-96231b3b80d8
* Add predicates for checking if a virtual register has a physicalAlkis Evlogimenos2004-02-241-0/+8
| | | | | | | register mapping or a stack slot mapping. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11795 91177308-0d34-0410-b5e6-96231b3b80d8
* Make enum private as it is an implementation detail.Alkis Evlogimenos2004-02-231-5/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11782 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove '4Virt' from member function names as it is obvious.Alkis Evlogimenos2004-02-231-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11781 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactor VirtRegMap out of RegAllocLinearScan as the first part of bugAlkis Evlogimenos2004-02-231-0/+95
251 (providing a generic machine code rewriter/spiller). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11780 91177308-0d34-0410-b5e6-96231b3b80d8
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