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ISLE: Lowering of multi-output instructions (#3783)

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This changes the output of the `lower` constructor from a
`ValueRegs` to a new `InstOutput` type, which is a vector
of `ValueRegs`.

Code in `lower_common` is updated to use this new type to
handle instructions with multiple outputs.  All back-ends
are updated to use the new type.
This commit is contained in:
Ulrich Weigand
2022-02-24 23:03:06 +01:00
committed by GitHub
parent e8881b2cc0
commit 07d615d3f7
12 changed files with 1145 additions and 925 deletions
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2
cranelift/codegen/src/isa/aarch64/lower.isle
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@@ -2,7 +2,7 @@
;; The main lowering constructor term: takes a clif `Inst` and returns the
;; register(s) within which the lowered instruction's result values live.
(decl lower (Inst) ValueRegs)
(decl lower (Inst) InstOutput)
;;;; Rules for `iconst` ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;