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Spill for VReg lifetimes instead of SpillSet lifetimes #171

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Spill for VReg lifetimes instead of SpillSet lifetimes #171

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Commits on Dec 1, 2023

  1. Allocate spill slots to vregs, not spillsets

    @elliottt
    elliottt committed Dec 1, 2023
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  2. Only write spill slots at defs

    @elliottt
    elliottt committed Dec 1, 2023
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Commits on Dec 4, 2023

  1. Simplify stack map calculation now that VRegs track spill allocations 

    Instead of processing all liveranges for each vreg, instead use the
aggregate lifetime for the vreg when constructing the stack map. As
spill slots are allocated to vregs now instead of spillsets, determining
which vreg allocations cross safepoints is now much simpler.

co-authored-by: Jamey Sharp <jsharp@fastly.com>
    @elliottt @jameysharp
    elliottt and jameysharp committed Dec 4, 2023
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  2. Remove the redundant move eliminator

    @elliottt
    elliottt committed Dec 4, 2023
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