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|
;; NOTE: Assertions have been generated by update_lit_checks.py --all-items and should not be edited.
;; RUN: wasm-opt %s --rse -all -S -o - | filecheck %s
(module
;; CHECK: (type $0 (func))
;; CHECK: (type $1 (func (result i32 exnref)))
;; CHECK: (type $2 (func (param i32)))
;; CHECK: (tag $e-i32 (param i32))
(tag $e-i32 (param i32))
;; CHECK: (tag $e-empty)
(tag $e-empty)
;; CHECK: (func $foo (type $0)
;; CHECK-NEXT: )
(func $foo)
;; CHECK: (func $try_table1 (type $0)
;; CHECK-NEXT: (local $x i32)
;; CHECK-NEXT: (block $outer
;; CHECK-NEXT: (block $catch_all
;; CHECK-NEXT: (try_table (catch_all $catch_all)
;; CHECK-NEXT: )
;; CHECK-NEXT: (br $outer)
;; CHECK-NEXT: )
;; CHECK-NEXT: (local.set $x
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (local.set $x
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $try_table1
(local $x i32)
(block $outer
(block $catch_all
(try_table (catch_all $catch_all)
)
(br $outer)
)
(local.set $x (i32.const 1))
)
;; try_table will not throw. So this should NOT be dropped
(local.set $x (i32.const 1))
)
;; CHECK: (func $try_table2 (type $0)
;; CHECK-NEXT: (local $x i32)
;; CHECK-NEXT: (block $catch_all
;; CHECK-NEXT: (try_table (catch_all $catch_all)
;; CHECK-NEXT: (throw $e-i32
;; CHECK-NEXT: (i32.const 0)
;; CHECK-NEXT: )
;; CHECK-NEXT: (local.set $x
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (local.set $x
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $try_table2
(local $x i32)
(block $catch_all
(try_table (catch_all $catch_all)
(throw $e-i32 (i32.const 0))
(local.set $x (i32.const 1))
)
)
;; local.set is after 'throw' so it will not run. This should NOT be
;; dropped.
(local.set $x (i32.const 1))
)
;; CHECK: (func $try_table3 (type $0)
;; CHECK-NEXT: (local $x i32)
;; CHECK-NEXT: (block $outer
;; CHECK-NEXT: (block $catch_all
;; CHECK-NEXT: (try_table (catch_all $catch_all)
;; CHECK-NEXT: (call $foo)
;; CHECK-NEXT: (local.set $x
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (br $outer)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (local.set $x
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $try_table3
(local $x i32)
(block $outer
(block $catch_all
(try_table (catch_all $catch_all)
(call $foo)
(local.set $x (i32.const 1))
)
(br $outer)
)
)
;; (call $foo) may throw and the local.set may not run, so this should NOT
;; be dropped
(local.set $x (i32.const 1))
)
;; CHECK: (func $try_table4 (type $0)
;; CHECK-NEXT: (local $x i32)
;; CHECK-NEXT: (block $outer
;; CHECK-NEXT: (block $catch_all
;; CHECK-NEXT: (try_table (catch_all $catch_all)
;; CHECK-NEXT: (local.set $x
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: (call $foo)
;; CHECK-NEXT: )
;; CHECK-NEXT: (br $outer)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $try_table4
(local $x i32)
(block $outer
(block $catch_all
(try_table (catch_all $catch_all)
(local.set $x (i32.const 1))
(call $foo)
)
(br $outer)
)
)
;; Even if (call $foo) throws, local.set runs before it, so this should be
;; dropped
(local.set $x (i32.const 1))
)
;; CHECK: (func $nested-try_table1 (type $0)
;; CHECK-NEXT: (local $x i32)
;; CHECK-NEXT: (local $exn exnref)
;; CHECK-NEXT: (block $catch_all0
;; CHECK-NEXT: (try_table (catch_all $catch_all0)
;; CHECK-NEXT: (local.set $exn
;; CHECK-NEXT: (block $catch_all_ref1 (result exnref)
;; CHECK-NEXT: (try_table (catch_all_ref $catch_all_ref1)
;; CHECK-NEXT: (throw $e-i32
;; CHECK-NEXT: (i32.const 0)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (local.set $x
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: (throw_ref
;; CHECK-NEXT: (local.get $exn)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $nested-try_table1
(local $x i32)
(local $exn exnref)
(block $catch_all0
(try_table (catch_all $catch_all0)
(local.set $exn
(block $catch_all_ref1 (result exnref)
(try_table (catch_all_ref $catch_all_ref1)
(throw $e-i32 (i32.const 0))
)
)
)
(local.set $x (i32.const 1))
(throw_ref (local.get $exn))
)
)
;; The exception is caught by the inner catch_all_ref, which runs the
;; local.set, so this should be dropped
(local.set $x (i32.const 1))
)
;; CHECK: (func $nested-try_table2 (type $0)
;; CHECK-NEXT: (local $x i32)
;; CHECK-NEXT: (local $exn exnref)
;; CHECK-NEXT: (local $pair (tuple i32 exnref))
;; CHECK-NEXT: (block $catch_all0
;; CHECK-NEXT: (try_table (catch_all $catch_all0)
;; CHECK-NEXT: (local.set $pair
;; CHECK-NEXT: (block $catch1 (type $1) (result i32 exnref)
;; CHECK-NEXT: (try_table (catch_ref $e-i32 $catch1)
;; CHECK-NEXT: (throw $e-i32
;; CHECK-NEXT: (i32.const 0)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (local.set $exn
;; CHECK-NEXT: (tuple.extract 2 1
;; CHECK-NEXT: (local.get $pair)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (local.set $x
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: (throw_ref
;; CHECK-NEXT: (local.get $exn)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (local.set $x
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $nested-try_table2
(local $x i32)
(local $exn exnref)
(local $pair (tuple i32 exnref))
(block $catch_all0
(try_table (catch_all $catch_all0)
(local.set $pair
(block $catch1 (result i32 exnref)
(try_table (catch_ref $e-i32 $catch1)
(throw $e-i32 (i32.const 0))
)
)
)
(local.set $exn
(tuple.extract 2 1 (local.get $pair))
)
(local.set $x (i32.const 1))
(throw_ref (local.get $exn))
)
)
;; Unlike nested-try_table1, the exception may not be caught by the inner
;; catch, so the local.set may not run. So this should NOT be dropped.
;; TODO This actually can be removed if we analyze tags in CFGWalker,
;; because we throw an i32 and catch an i32 too in the inner try_table. Add
;; this to the analysis.
(local.set $x (i32.const 1))
)
;; CHECK: (func $nested-try_table3 (type $0)
;; CHECK-NEXT: (local $x i32)
;; CHECK-NEXT: (local $exn exnref)
;; CHECK-NEXT: (local $pair (tuple i32 exnref))
;; CHECK-NEXT: (block $catch_all0
;; CHECK-NEXT: (try_table (catch_all $catch_all0)
;; CHECK-NEXT: (block $outer1
;; CHECK-NEXT: (local.set $pair
;; CHECK-NEXT: (block $catch1 (type $1) (result i32 exnref)
;; CHECK-NEXT: (try_table (catch_ref $e-i32 $catch1)
;; CHECK-NEXT: (call $foo)
;; CHECK-NEXT: )
;; CHECK-NEXT: (br $outer1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (local.set $exn
;; CHECK-NEXT: (tuple.extract 2 1
;; CHECK-NEXT: (local.get $pair)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (local.set $x
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: (throw_ref
;; CHECK-NEXT: (local.get $exn)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (local.set $x
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $nested-try_table3
(local $x i32)
(local $exn exnref)
(local $pair (tuple i32 exnref))
(block $catch_all0
(try_table (catch_all $catch_all0)
(block $outer1
(local.set $pair
(block $catch1 (result i32 exnref)
(try_table (catch_ref $e-i32 $catch1)
(call $foo)
)
(br $outer1)
)
)
(local.set $exn
(tuple.extract 2 1 (local.get $pair))
)
(local.set $x (i32.const 1))
(throw_ref (local.get $exn))
)
)
)
;; Unlike nested-try_table1, the exception may not be caught by the inner
;; catch, so the local.set may not run. So this should NOT be dropped.
;; Unlike nested-try_table2, In this case we don't know what (call $foo)
;; will throw, so we can't drop this even if we analyze tags.
(local.set $x (i32.const 1))
)
;; CHECK: (func $catchless-try_table (type $0)
;; CHECK-NEXT: (local $x i32)
;; CHECK-NEXT: (try_table
;; CHECK-NEXT: (call $foo)
;; CHECK-NEXT: (local.set $x
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $catchless-try_table
(local $x i32)
(try_table
(call $foo)
(local.set $x (i32.const 1))
)
;; The only way we end up here is when (call $foo) does not throw, because
;; if (call $foo) throws, it will throw to the caller because it is within
;; a catchless try_table. In that case the local.set after (call $foo) would
;; have run before this, so this can be dropped.
(local.set $x (i32.const 1))
)
)
|
