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pulley: Remove special registers as candidates from regalloc #9666

Merged
merged 2 commits into from
Nov 22, 2024
Merged

pulley: Remove special registers as candidates from regalloc #9666

merged 2 commits into from
Nov 22, 2024

Commits on Nov 22, 2024

  1. pulley: Remove special registers as candidates from regalloc 

    This commit fixes a minor mistake where regalloc was allowed to allocate
"special registers" such as the stack pointer, the frame pointer, etc.
These register shouldn't participate in general-purpose register
allocation, so they're removed from the list of non-preferred registers
when metadata is provided to regalloc2.
    @alexcrichton
    alexcrichton committed Nov 22, 2024
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  2. Assert everything before SPECIAL_START is not special

    @alexcrichton
    alexcrichton committed Nov 22, 2024
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