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X64: port the rest of icmp to ISLE (#4254)

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Finish migrating icmp to ISLE for x64
This commit is contained in:
Trevor Elliott
2022-06-13 16:34:11 -07:00
committed by GitHub
parent 43d4f0b93b
commit 7e0bb465d0
5 changed files with 121 additions and 74 deletions
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20
cranelift/codegen/src/isa/x64/inst.isle
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@@ -1271,6 +1271,26 @@
(decl lo_gpr (Value) Gpr)
(rule (lo_gpr regs) (gpr_new (lo_reg regs)))
;;;; Helpers for Working With Integer Comparison Codes ;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; An extractor that fails if the two arguments are equal. The first argument is
;; returned when it does not match the second.
(decl pure intcc_neq (IntCC IntCC) IntCC)
(extern constructor intcc_neq intcc_neq)
;; This is a direct import of `IntCC::without_equal`.
;; Get the corresponding IntCC with the equal component removed.
;; For conditions without a zero component, this is a no-op.
(decl intcc_without_eq (IntCC) IntCC)
(extern constructor intcc_without_eq intcc_without_eq)
;; This is a direct import of `IntCC::unsigned`.
;; Get the corresponding IntCC with the signed component removed.
;; For conditions without a signed component, this is a no-op.
(decl intcc_unsigned (IntCC) IntCC)
(extern constructor intcc_unsigned intcc_unsigned)
;;;; Helpers for Getting Particular Physical Registers ;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; These should only be used for legalization purposes, when we can't otherwise