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|
;; NOTE: Assertions have been generated by update_lit_checks.py and should not be edited.
;; RUN: wasm-opt %s --code-pushing -all -S -o - | filecheck %s
;; The tests in this file test EffectAnalyzer, which is used by CodePushing.
(module
;; CHECK: (tag $e (param i32))
(tag $e (param i32))
;; CHECK: (func $cannot-push-past-call (type $0)
;; CHECK-NEXT: (local $x i32)
;; CHECK-NEXT: (block $out
;; CHECK-NEXT: (local.set $x
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: (call $cannot-push-past-call)
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: (br_if $out
;; CHECK-NEXT: (i32.const 2)
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (local.get $x)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $cannot-push-past-call
(local $x i32)
(block $out
;; This local.set cannot be pushed down, because the call below can throw.
(local.set $x (i32.const 1))
(call $cannot-push-past-call)
(drop (i32.const 1))
(br_if $out (i32.const 2))
(drop (local.get $x))
)
)
;; CHECK: (func $cannot-push-past-throw (type $0)
;; CHECK-NEXT: (local $x i32)
;; CHECK-NEXT: (block $out
;; CHECK-NEXT: (local.set $x
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: (throw $e
;; CHECK-NEXT: (i32.const 0)
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: (br_if $out
;; CHECK-NEXT: (i32.const 2)
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (local.get $x)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $cannot-push-past-throw
(local $x i32)
(block $out
;; This local.set cannot be pushed down, because there is 'throw' below.
;; This pass only pushes past conditional control flow atm.
(local.set $x (i32.const 1))
(throw $e (i32.const 0))
(drop (i32.const 1))
(br_if $out (i32.const 2))
(drop (local.get $x))
)
)
;; CHECK: (func $can-push-past-try_table (type $0)
;; CHECK-NEXT: (local $x i32)
;; CHECK-NEXT: (block $out
;; CHECK-NEXT: (block $tryend
;; 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: (br $tryend)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: (br_if $out
;; CHECK-NEXT: (i32.const 2)
;; CHECK-NEXT: )
;; CHECK-NEXT: (local.set $x
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (local.get $x)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $can-push-past-try_table
(local $x i32)
(block $out
;; This local.set can be pushed down, because the 'throw' below is going
;; to be caught by the inner catch_all.
(local.set $x (i32.const 1))
(block $tryend
(block $catch
(try_table (catch_all $catch)
(throw $e (i32.const 0))
)
(br $tryend)
)
)
(drop (i32.const 1))
(br_if $out (i32.const 2))
(drop (local.get $x))
)
)
;; CHECK: (func $foo (type $0)
;; CHECK-NEXT: )
(func $foo)
;; CHECK: (func $cannot-push-past-try_table (type $0)
;; CHECK-NEXT: (local $x i32)
;; CHECK-NEXT: (block $out
;; CHECK-NEXT: (local.set $x
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: (block $tryend
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (block $catch (result i32)
;; CHECK-NEXT: (try_table (catch $e $catch)
;; CHECK-NEXT: (call $foo)
;; CHECK-NEXT: )
;; CHECK-NEXT: (br $tryend)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: (br_if $out
;; CHECK-NEXT: (i32.const 2)
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (local.get $x)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $cannot-push-past-try_table
(local $x i32)
(block $out
;; This local.set cannot be pushed down, because the exception thrown by
;; 'call $foo' below may not be caught by 'catch $e'.
(local.set $x (i32.const 1))
(block $tryend
(drop
(block $catch (result i32)
(try_table (catch $e $catch)
(call $foo)
)
(br $tryend)
)
)
)
(drop (i32.const 1))
(br_if $out (i32.const 2))
(drop (local.get $x))
)
)
;; CHECK: (func $cannot-push-past-throw_ref-within-catch (type $0)
;; CHECK-NEXT: (local $x i32)
;; CHECK-NEXT: (block $out
;; CHECK-NEXT: (local.set $x
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: (block $tryend
;; CHECK-NEXT: (throw_ref
;; CHECK-NEXT: (block $catch (result exnref)
;; CHECK-NEXT: (try_table (catch_all_ref $catch)
;; CHECK-NEXT: (throw $e
;; CHECK-NEXT: (i32.const 0)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (br $tryend)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: (br_if $out
;; CHECK-NEXT: (i32.const 2)
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (local.get $x)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $cannot-push-past-throw_ref-within-catch
(local $x i32)
(block $out
;; This local.set cannot be pushed down, because there is 'throw_ref'
;; within the catch handler.
(local.set $x (i32.const 1))
(block $tryend
(throw_ref
(block $catch (result exnref)
(try_table (catch_all_ref $catch)
(throw $e (i32.const 0))
)
(br $tryend)
)
)
)
(drop (i32.const 1))
(br_if $out (i32.const 2))
(drop (local.get $x))
)
)
;; CHECK: (func $can-push-past-conditional-throw (type $1) (param $param i32)
;; CHECK-NEXT: (local $x i32)
;; CHECK-NEXT: (block $block
;; CHECK-NEXT: (if
;; CHECK-NEXT: (local.get $param)
;; CHECK-NEXT: (then
;; CHECK-NEXT: (throw $e
;; CHECK-NEXT: (i32.const 0)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (local.set $x
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (local.get $x)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $can-push-past-conditional-throw (param $param i32)
(local $x i32)
(block $block
;; We can push past an if containing a throw. The if is conditional
;; control flow, which is what we look for in this optimization, and a
;; throw is like a break - it will jump out of the current block - so we
;; can push the set past it, as the set is only needed in this block.
(local.set $x (i32.const 1))
(if
(local.get $param)
(then
(throw $e (i32.const 0))
)
)
(drop (local.get $x))
)
)
;; CHECK: (func $cannot-push-past-conditional-throw-extra-use (type $1) (param $param i32)
;; CHECK-NEXT: (local $x i32)
;; CHECK-NEXT: (block $block
;; CHECK-NEXT: (local.set $x
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: (if
;; CHECK-NEXT: (local.get $param)
;; CHECK-NEXT: (then
;; CHECK-NEXT: (throw $e
;; CHECK-NEXT: (i32.const 0)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (local.get $x)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: (drop
;; CHECK-NEXT: (local.get $x)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $cannot-push-past-conditional-throw-extra-use (param $param i32)
(local $x i32)
;; As above, but now there is another local.get outside of the block. That
;; means the local.set cannot be pushed to a place it might not execute.
(block $block
(local.set $x (i32.const 1))
(if
(local.get $param)
(then
(throw $e (i32.const 0))
)
)
(drop (local.get $x))
)
(drop (local.get $x))
)
)
|
