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2008 Jan 31
7
[LLVMdev] Some questions about live intervals
...ing to sketch an LLVM-based implementation of the Extended
Linear Scan algorithm, described in this Vivek Sarkar's paper:
http://www.cs.rice.edu/~vs3/PDF/cc2007.pdf
Sarkar reports that this version of Linear Scan produces better code
than graph-coloring regallocs and is also much faster (15x to 68x).
I already started work on the implementation of this algorithm and have
a few hopefully rather simple questions:
1) What is the easiest way to understand which MBB a given instruction
index belongs to? All the required information is available in the
MBB2IdxMap of the LiveIntervalAnalysis class...
2008 Feb 01
0
[LLVMdev] Some questions about live intervals
...M-based implementation of the Extended
> Linear Scan algorithm, described in this Vivek Sarkar's paper:
> http://www.cs.rice.edu/~vs3/PDF/cc2007.pdf
> Sarkar reports that this version of Linear Scan produces better code
> than graph-coloring regallocs and is also much faster (15x to 68x).
>
> I already started work on the implementation of this algorithm and
> have
> a few hopefully rather simple questions:
>
> 1) What is the easiest way to understand which MBB a given instruction
> index belongs to? All the required information is available in the
> MBB2...