test/lit/passes/optimize-instructions-multivalue.wast

;; NOTE: Assertions have been generated by update_lit_checks.py and should not be edited.
;; RUN: wasm-opt %s --optimize-instructions --enable-multivalue -S -o - | filecheck %s

(module
  ;; CHECK:      (func $if-identical-arms-tuple (param $x i32) (result i32)
  ;; CHECK-NEXT:  (tuple.extract 0
  ;; CHECK-NEXT:   (if (result i32 i32)
  ;; CHECK-NEXT:    (local.get $x)
  ;; CHECK-NEXT:    (tuple.make
  ;; CHECK-NEXT:     (i32.const 0)
  ;; CHECK-NEXT:     (i32.const 1)
  ;; CHECK-NEXT:    )
  ;; CHECK-NEXT:    (tuple.make
  ;; CHECK-NEXT:     (i32.const 2)
  ;; CHECK-NEXT:     (i32.const 3)
  ;; CHECK-NEXT:    )
  ;; CHECK-NEXT:   )
  ;; CHECK-NEXT:  )
  ;; CHECK-NEXT: )
  (func $if-identical-arms-tuple (param $x i32) (result i32)
    (if (result i32)
      (local.get $x)
      ;; The tuple.extract can be hoisted out.
      (tuple.extract 0
        (tuple.make
          (i32.const 0)
          (i32.const 1)
        )
      )
      (tuple.extract 0
        (tuple.make
          (i32.const 2)
          (i32.const 3)
        )
      )
    )
  )
  ;; CHECK:      (func $select-identical-arms-tuple (param $x i32) (result i32)
  ;; CHECK-NEXT:  (select
  ;; CHECK-NEXT:   (tuple.extract 0
  ;; CHECK-NEXT:    (tuple.make
  ;; CHECK-NEXT:     (i32.const 0)
  ;; CHECK-NEXT:     (i32.const 1)
  ;; CHECK-NEXT:    )
  ;; CHECK-NEXT:   )
  ;; CHECK-NEXT:   (tuple.extract 0
  ;; CHECK-NEXT:    (tuple.make
  ;; CHECK-NEXT:     (i32.const 2)
  ;; CHECK-NEXT:     (i32.const 3)
  ;; CHECK-NEXT:    )
  ;; CHECK-NEXT:   )
  ;; CHECK-NEXT:   (local.get $x)
  ;; CHECK-NEXT:  )
  ;; CHECK-NEXT: )
  (func $select-identical-arms-tuple (param $x i32) (result i32)
    (select
      ;; The tuple.extract cannot be hoisted out, as the spec disallows a
      ;; select with multiple values in its arms.
      (tuple.extract 0
        (tuple.make
          (i32.const 0)
          (i32.const 1)
        )
      )
      (tuple.extract 0
        (tuple.make
          (i32.const 2)
          (i32.const 3)
        )
      )
      (local.get $x)
    )
  )
)