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;; NOTE: Assertions have been generated by update_lit_checks.py and should not be edited.
;; RUN: wasm-opt %s --vacuum -all -S -o - | filecheck %s
(module
;; CHECK: (func $compare (type $0)
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (string.compare
;; CHECK-NEXT: (string.const "hello")
;; CHECK-NEXT: (ref.null none)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (string.compare
;; CHECK-NEXT: (ref.null none)
;; CHECK-NEXT: (string.const "world")
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (string.compare
;; CHECK-NEXT: (ref.null none)
;; CHECK-NEXT: (ref.null none)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $compare
;; We cannot vacuum away compares that might trap.
(drop
(string.compare
(string.const "hello")
(string.const "world")
)
)
(drop
(string.compare
(string.const "hello")
(ref.null none)
)
)
(drop
(string.compare
(ref.null none)
(string.const "world")
)
)
(drop
(string.compare
(ref.null none)
(ref.null none)
)
)
)
;; CHECK: (func $eq (type $0)
;; CHECK-NEXT: (nop)
;; CHECK-NEXT: )
(func $eq
;; Equals, however, never traps so all these can be removed.
(drop
(string.eq
(string.const "hello")
(string.const "world")
)
)
(drop
(string.eq
(string.const "hello")
(ref.null none)
)
)
(drop
(string.eq
(ref.null none)
(string.const "world")
)
)
(drop
(string.eq
(ref.null none)
(ref.null none)
)
)
)
)
|
