zjit: precompute caller-saved register survivors - #1080
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efegokdemir wants to merge 1 commit into
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efegokdemir wants to merge 1 commit into
efegokdemir wants to merge 1 commit into
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Match call sites against live ranges once instead of rescanning every interval for each CCall. Fixes Shopify#1075
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Fixes #1075
Precompute CCall survivor sets by matching sorted call positions against live ranges, avoiding a full virtual-register scan for every call while retaining stack-map-only survivors.
Tests:
cargo test --manifest-path ../zjit/Cargo.toml --features=disasm,runtime_checks backend::lir::tests::test_call -- --exact --test-threads=1cargo test --manifest-path ../zjit/Cargo.toml --features=disasm,runtime_checks backend::lir::tests::test_caller_saved_reg_survivors -- --exact --test-threads=1cargo clippy --manifest-path zjit/Cargo.toml --all-targets --all-features