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bytecodealliance
GitHub Repository: bytecodealliance/wasmtime
Path: blob/main/tests/disas/byteswap.wat
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;;! target = "x86_64"
;;! test = "optimize"

(module
  (func (export "bswap32") (param i32) (result i32)
    local.get 0
    i32.const 24
    i32.shl
    local.get 0
    i32.const 65280
    i32.and
    i32.const 8
    i32.shl
    i32.or
    local.get 0
    i32.const 8
    i32.shr_u
    i32.const 65280
    i32.and
    local.get 0
    i32.const 24
    i32.shr_u
    i32.or
    i32.or
  )

  (func (export "bswap64") (param i64) (result i64)
    local.get 0
    i64.const 56
    i64.shl
    local.get 0
    i64.const 65280
    i64.and
    i64.const 40
    i64.shl
    i64.or
    local.get 0
    i64.const 16711680
    i64.and
    i64.const 24
    i64.shl
    local.get 0
    i64.const 4278190080
    i64.and
    i64.const 8
    i64.shl
    i64.or
    i64.or
    local.get 0
    i64.const 8
    i64.shr_u
    i64.const 4278190080
    i64.and
    local.get 0
    i64.const 24
    i64.shr_u
    i64.const 16711680
    i64.and
    i64.or
    local.get 0
    i64.const 40
    i64.shr_u
    i64.const 65280
    i64.and
    local.get 0
    i64.const 56
    i64.shr_u
    i64.or
    i64.or
    i64.or
  )
)

;; function u0:0(i64 vmctx, i64, i32) -> i32 tail {
;;     gv0 = vmctx
;;     gv1 = load.i64 notrap aligned readonly gv0+8
;;     gv2 = load.i64 notrap aligned gv1+16
;;     stack_limit = gv2
;;
;;                                 block0(v0: i64, v1: i64, v2: i32):
;; @0057                               jump block1
;;
;;                                 block1:
;;                                     v19 = bswap.i32 v2
;; @0057                               return v19
;; }
;;
;; function u0:1(i64 vmctx, i64, i64) -> i64 tail {
;;     gv0 = vmctx
;;     gv1 = load.i64 notrap aligned readonly gv0+8
;;     gv2 = load.i64 notrap aligned gv1+16
;;     stack_limit = gv2
;;
;;                                 block0(v0: i64, v1: i64, v2: i64):
;; @00ad                               jump block1
;;
;;                                 block1:
;;                                     v39 = bswap.i64 v2
;; @00ad                               return v39
;; }