Wp is exec #362
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Wp is exec #362
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and rules for cmd' whose premises are copied from WP.cmd. This one is "fs everywhere" (ie list of functions everywhere). The wp_call rule requires a NoDup, which would be cumbersome to carry around.
In an "env everywhere" setting, where program_logic_goal_for! adds a (map.get fs fname = Some fimpl) hypothesis. Surprise mit-plv#1: There's no case in straightline that handles if-then-else Surprise mit-plv#2: unfold1_... tactics are not the only place that depend on conversion: There also exists a letexists in SPI that turns a (WP (cmd.cond e _ _) ...) into an (exists v, eval e v /\ ...), and probably more elsewhere.
sneaking an `apply_rules_until_propositional` call into `letexists`, `eexists`, `esplit`, and inserting `unfold1_cmd_goal` where still needed. Gave up on memmove because it seems too hard to simulate a `cbn` that happens under exists and ands by applying wp rules under these exists and ands.
andres-erbsen
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Based on abandoned branch mentioned in #361