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ISLE: Always default the priority to 0 (#4983)

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* Always default priorities to 0 in the ISLE IR
* Fix a hidden overlap in the x64 backend
This commit is contained in:
Trevor Elliott
2022-09-29 15:32:29 -07:00
committed by GitHub
parent 7d5b2b5bb2
commit 46e42601eb
3 changed files with 9 additions and 9 deletions
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10
cranelift/codegen/src/isa/x64/lower.isle
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@@ -866,28 +866,28 @@
;; `i64` and smaller.
;; Multiply two registers.
(rule -4 (lower (has_type (fits_in_64 ty) (imul x y)))
(rule -5 (lower (has_type (fits_in_64 ty) (imul x y)))
(x64_mul ty x y))
;; Multiply a register and an immediate.
(rule -2 (lower (has_type (fits_in_64 ty)
(rule -3 (lower (has_type (fits_in_64 ty)
(imul x (simm32_from_value y))))
(x64_mul ty x y))
(rule -3 (lower (has_type (fits_in_64 ty)
(rule -4 (lower (has_type (fits_in_64 ty)
(imul (simm32_from_value x) y)))
(x64_mul ty y x))
;; Multiply a register and a memory load.
(rule -1 (lower (has_type (fits_in_64 ty)
(rule -2 (lower (has_type (fits_in_64 ty)
(imul x (sinkable_load y))))
(x64_mul ty
x
(sink_load_to_gpr_mem_imm y)))
(rule 0 (lower (has_type (fits_in_64 ty)
(rule -1 (lower (has_type (fits_in_64 ty)
(imul (sinkable_load x) y)))
(x64_mul ty y
(sink_load_to_gpr_mem_imm x)))