Mutable variables in dynamic branches prevent full constant folding in partial evaluation #2089
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…n partial evaluation This fixes the bug by having partial evaluation more explicitly track different variable mappings to literals across branches and recombining those mappings that match (ie: are constant) when all branches are done. This also includes partial eval and RIR SSA pass fixes to correctly support immutable and mutable copies of dynamic variables. New test cases for several combinations of constant folding at partial eval are included, as well as a new test case confirming RIR SSA fix. Fixes #2087
idavis
reviewed
Jan 7, 2025
idavis
reviewed
Jan 7, 2025
idavis
approved these changes
Jan 7, 2025
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This fixes the bug by having partial evaluation more explicitly track different variable mappings to literals across branches and recombining those mappings that match (ie: are constant) when all branches are done. This also includes partial eval and RIR SSA pass fixes to correctly support immutable and mutable copies of dynamic variables. New test cases for several combinations of constant folding at partial eval are included, as well as a new test case confirming RIR SSA fix.
Fixes #2087