s390x: Migrate branches and traps to ISLE

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In order to migrate branches to ISLE, we define a second entry
point `lower_branch` which gets the list of branch targets as
additional argument.

This requires a small change to `lower_common`: the `isle_lower`
callback argument is changed from a function pointer to a closure.
This allows passing the extra argument via a closure.

Traps make use of the recently added facility to emit safepoints
from ISLE, but are otherwise straightforward.

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This commit is contained in:

Ulrich Weigand

2022-01-25 18:15:32 +01:00

parent cd6b73fc90

commit 36369a6f35

7 changed files with 1485 additions and 1500 deletions

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cranelift/codegen/src/isa/s390x/lower/isle/generated_code.rs generated

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