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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: (type $void (func))
(type $void (func))
;; CHECK: (table $t 0 funcref)
(table $t 0 funcref)
;; CHECK: (tag $e (param i32))
(tag $e (param i32))
;; CHECK: (tag $e2 (param i32))
(tag $e2 (param i32))
;; CHECK: (func $try_table-test (type $void)
;; CHECK-NEXT: (nop)
;; CHECK-NEXT: )
(func $try_table-test
;; When try_table body does not throw, the try_table can be replaced with
;; its body
(block $tryend
(drop
(block $catch (result i32)
(try_table (catch $e $catch)
(drop (i32.const 0))
)
(br $tryend)
)
)
)
)
;; CHECK: (func $inner-try_table-catch_all-test (type $2) (result i32)
;; CHECK-NEXT: (local $0 i32)
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (block
;; CHECK-NEXT: (block $inner-catch
;; CHECK-NEXT: (try_table (catch_all $inner-catch)
;; CHECK-NEXT: (throw $e
;; CHECK-NEXT: (i32.const 0)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (return
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (i32.const 2)
;; CHECK-NEXT: )
(func $inner-try_table-catch_all-test (result i32)
(local $0 i32)
;; The exception thrown in the inner try_table is caught by the inner
;; catch_all, so the outer try_table body does not throw and the outer
;; try_table can be removed
(block $outer-tryend
(drop
(block $outer-catch (result i32)
(try_table (catch $e $outer-catch)
(block $inner-catch
(try_table (catch_all $inner-catch)
(throw $e (i32.const 0))
)
(unreachable)
)
(return (i32.const 1))
)
(br $outer-tryend)
)
)
)
(i32.const 2)
)
;; CHECK: (func $inner-try_table-catch-test (type $void)
;; CHECK-NEXT: (local $0 i32)
;; CHECK-NEXT: (block $outer-tryend
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (block $outer-catch (result i32)
;; CHECK-NEXT: (try_table (catch $e $outer-catch)
;; CHECK-NEXT: (block $inner-tryend
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (block $inner-catch (result i32)
;; CHECK-NEXT: (try_table (catch $e $inner-catch)
;; CHECK-NEXT: (throw $e2
;; CHECK-NEXT: (i32.const 0)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (local.set $0
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (br $outer-tryend)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $inner-try_table-catch-test (local $0 i32)
;; The exception thrown in the inner try_table will not be caught by the
;; inner catch, so the outer try_table cannot be removed.
(block $outer-tryend
(drop
(block $outer-catch (result i32)
(try_table (catch $e $outer-catch)
(block $inner-tryend
(drop
(block $inner-catch (result i32)
(try_table (catch $e $inner-catch)
(throw $e2 (i32.const 0))
)
(br $inner-tryend)
)
)
(local.set $0 (i32.const 1))
)
)
(br $outer-tryend)
)
)
)
)
;; CHECK: (func $trivial-catch-all-of-throw (type $void)
;; CHECK-NEXT: (local $0 i32)
;; CHECK-NEXT: (block $catch
;; CHECK-NEXT: (try_table (catch_all $catch)
;; CHECK-NEXT: (throw $e
;; CHECK-NEXT: (i32.const 0)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (block $catch0
;; CHECK-NEXT: (try_table (catch_all $catch0)
;; CHECK-NEXT: (if
;; CHECK-NEXT: (local.get $0)
;; CHECK-NEXT: (then
;; CHECK-NEXT: (throw $e
;; CHECK-NEXT: (i32.const 0)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (else
;; CHECK-NEXT: (unreachable)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $trivial-catch-all-of-throw (local $0 i32)
;; This try_table's body throws, but the catch_all catches it, so the entire
;; try_table could be optimized out. We do this for `try` but not for
;; `try_table` - we leave such optimizations to --remove-unused-brs (that
;; pass can see that the throw can be converted to a br).
(block $catch
(try_table (catch_all $catch)
(throw $e (i32.const 0))
)
)
;; Here we also have a possible trap, so we can't do it.
(block $catch
(try_table (catch_all $catch)
(if
(local.get $0)
(then
(throw $e (i32.const 0))
)
(else
(unreachable)
)
)
)
)
)
;; CHECK: (func $throw (type $void)
;; CHECK-NEXT: (throw $e
;; CHECK-NEXT: (i32.const 0)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $throw
;; Helper for the tail call tests below.
(throw $e
(i32.const 0)
)
)
;; CHECK: (func $return-call-catch (type $void)
;; CHECK-NEXT: (return_call $throw)
;; CHECK-NEXT: )
(func $return-call-catch
(block $catch
(try_table (catch_all $catch)
;; This returns before it throws, so we can optimize out the surrounding
;; try_table.
(return_call $throw)
)
)
)
;; CHECK: (func $return-call-indirect-catch (type $void)
;; CHECK-NEXT: (return_call_indirect $t (type $void)
;; CHECK-NEXT: (i32.const 0)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $return-call-indirect-catch
(block $catch
(try_table (catch_all $catch)
;; This returns before it throws, so we can optimize out the surrounding
;; try_table.
(return_call_indirect
(i32.const 0)
)
)
)
)
;; CHECK: (func $return-call-ref-catch (type $void)
;; CHECK-NEXT: (return_call_ref $void
;; CHECK-NEXT: (ref.func $throw)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $return-call-ref-catch
(block $catch
(try_table (catch_all $catch)
;; This returns before it throws, so we can optimize out the surrounding
;; try_table.
(return_call_ref $void
(ref.func $throw)
)
)
)
)
)
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