| d5be48a9db6bf9b1b399e1309b9654e06a616165 |
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03-Apr-2012 |
Lang Hames <lhames@gmail.com> |
Matrix simplification in PBQP may push infinite costs onto register options.
The colorability heuristic should count these as denied registers.
No test case - this exposed a bug on an out-of-tree target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153958 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/include/llvm/CodeGen/PBQP/Heuristics/Briggs.h
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| ddcdcc88631c6bd4ad43d9198b98bc9a829be036 |
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23-Apr-2011 |
Jay Foad <jay.foad@gmail.com> |
Remove unused STL header includes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130068 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/include/llvm/CodeGen/PBQP/Heuristics/Briggs.h
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| e9c935662d77b8c5a3a26f5622dc2a3ed22d75c8 |
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21-Sep-2010 |
Lang Hames <lhames@gmail.com> |
Added an additional PBQP problem builder which adds coalescing costs (both between pairs of virtuals, and between virtuals and physicals).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114429 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/include/llvm/CodeGen/PBQP/Heuristics/Briggs.h
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| eb6c8f53b4df1488f3d07c11af8f754cc4620f3a |
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18-Sep-2010 |
Lang Hames <lhames@gmail.com> |
Added a separate class (PBQPBuilder) for PBQP Problem construction. This class can be extended to support custom constraints.
For now the allocator still uses the old (internal) construction mechanism by default. This will be phased out soon assuming
no issues with the builder system come up.
To invoke the new construction mechanism just pass '-regalloc=pbqp -pbqp-builder' to llc. To provide custom constraints a
Target just needs to extend PBQPBuilder and pass an instance of their derived builder to the RegAllocPBQP constructor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114272 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/include/llvm/CodeGen/PBQP/Heuristics/Briggs.h
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