pulley: Remove special registers as candidates from regalloc #9666
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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.
cfallin
approved these changes
Nov 22, 2024
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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.