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J2CL: use a more future proof naming convention for once functions #6173

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merged 5 commits into from
Dec 13, 2023
Merged

J2CL: use a more future proof naming convention for once functions #6173

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67881c5
once
gkdn Dec 13, 2023
8a3bb43
--amend
gkdn Dec 13, 2023
49de988
merge
gkdn Dec 13, 2023
f9bf01a
Update test/lit/passes/j2cl-inline.wast
gkdn Dec 13, 2023
8db831f
workaround escaping problem
gkdn Dec 13, 2023
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2 changes: 1 addition & 1 deletion src/passes/J2CLOpts.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,7 @@ namespace wasm {

namespace {

bool isOnceFunction(Function* f) { return f->name.hasSubstring("_@once@_"); }
bool isOnceFunction(Function* f) { return f->name.hasSubstring("_<once>_"); }

using AssignmentCountMap = std::unordered_map<Name, Index>;

Expand Down
22 changes: 12 additions & 10 deletions test/lit/passes/j2cl-inline.wast
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@@ -1,16 +1,18 @@
;; NOTE: Assertions have been generated by update_lit_checks.py --all-items and should not be edited.

;; RUN: foreach %s %t wasm-opt --no-inline=*_@once@_* --optimize-j2cl --inlining --vacuum --optimize-level=3 -all -S -o - | filecheck %s
;; NOTE: In real world example no-inline would use _<once>_ but there is escaping problem in a multi-platform
;; way in lit so we are working around it by using no-inline with a different pattern that matches same method.
;; RUN: foreach %s %t wasm-opt --no-inline=*clinit* --optimize-j2cl --inlining --vacuum --optimize-level=3 -all -S -o - | filecheck %s

;; Only trivial once functions are inlined
(module

;; A once function that has become empty
(func $clinit-trivial-1_@once@_@Foo )
(func $clinit-trivial-1_<once>_@Foo )

;; A once function that just calls another
(func $clinit-trivial-2_@once@_@Bar
(call $clinit-trivial-1_@once@_@Foo)
(func $clinit-trivial-2_<once>_@Bar
(call $clinit-trivial-1_<once>_@Foo)
)

;; CHECK: (type $0 (func))
Expand All @@ -19,7 +21,7 @@
(global $$class-initialized@Zoo (mut i32) (i32.const 0))

;; Not hoisted but trivial.
;; CHECK: (func $clinit-non-trivial_@once@_@Zoo (type $0)
;; CHECK: (func $clinit-non-trivial_<once>_@Zoo (type $0)
;; CHECK-NEXT: (if
;; CHECK-NEXT: (global.get $$class-initialized@Zoo)
;; CHECK-NEXT: (return)
Expand All @@ -28,19 +30,19 @@
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $clinit-non-trivial_@once@_@Zoo
(func $clinit-non-trivial_<once>_@Zoo
(if (global.get $$class-initialized@Zoo)
(return)
)
(global.set $$class-initialized@Zoo (i32.const 1))
)

;; CHECK: (func $main (type $0)
;; CHECK-NEXT: (call $clinit-non-trivial_@once@_@Zoo)
;; CHECK-NEXT: (call $clinit-non-trivial_<once>_@Zoo)
;; CHECK-NEXT: )
(func $main
(call $clinit-trivial-1_@once@_@Foo)
(call $clinit-trivial-2_@once@_@Bar)
(call $clinit-non-trivial_@once@_@Zoo)
(call $clinit-trivial-1_<once>_@Foo)
(call $clinit-trivial-2_<once>_@Bar)
(call $clinit-non-trivial_<once>_@Zoo)
)
)
24 changes: 12 additions & 12 deletions test/lit/passes/j2cl.wast
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Expand Up @@ -12,10 +12,10 @@
(global $field-i32@Foo (mut i32) (i32.const 0))
(global $field-f64@Foo (mut f64) (f64.const 0))

;; CHECK: (func $clinit_@once@_@Foo (type $0)
;; CHECK: (func $clinit_<once>_@Foo (type $0)
;; CHECK-NEXT: (nop)
;; CHECK-NEXT: )
(func $clinit_@once@_@Foo
(func $clinit_<once>_@Foo
(global.set $field-i32@Foo (i32.const 1))
(global.set $field-f64@Foo (f64.const 1))
)
Expand Down Expand Up @@ -48,14 +48,14 @@
;; CHECK: (global $field3@Foo anyref (global.get $field1@Foo))
(global $field3@Foo (mut anyref) (ref.null none))

;; CHECK: (func $clinit_@once@_@Foo (type $1)
;; CHECK: (func $clinit_<once>_@Foo (type $1)
;; CHECK-NEXT: (global.set $field2@Foo
;; CHECK-NEXT: (struct.new $A
;; CHECK-NEXT: (global.get $referredFieldMut@Foo)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $clinit_@once@_@Foo
(func $clinit_<once>_@Foo
;; Referred field is immutable, should hoist
(global.set $field1@Foo (struct.new $A (
global.get $referredField@Foo)
Expand Down Expand Up @@ -85,15 +85,15 @@

(global $field-any@Foo (mut anyref) (struct.new $A))

;; CHECK: (func $clinit_@once@_@Foo (type $1)
;; CHECK: (func $clinit_<once>_@Foo (type $1)
;; CHECK-NEXT: (global.set $field-i32@Foo
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: (global.set $field-any@Foo
;; CHECK-NEXT: (struct.new_default $A)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $clinit_@once@_@Foo
(func $clinit_<once>_@Foo
(global.set $field-i32@Foo (i32.const 1))
(global.set $field-any@Foo (struct.new $A))
)
Expand All @@ -107,10 +107,10 @@
;; CHECK: (global $field@Foo i32 (i32.const 1))
(global $field@Foo (mut i32) (i32.const 0))

;; CHECK: (func $clinit_@once@_@Foo (type $0)
;; CHECK: (func $clinit_<once>_@Foo (type $0)
;; CHECK-NEXT: (nop)
;; CHECK-NEXT: )
(func $clinit_@once@_@Foo
(func $clinit_<once>_@Foo
(global.set $field@Foo (i32.const 1))
)
)
Expand All @@ -123,12 +123,12 @@
;; CHECK: (global $$class-initialized@Foo (mut i32) (i32.const 0))
(global $$class-initialized@Foo (mut i32) (i32.const 0))

;; CHECK: (func $clinit_@once@_@Foo (type $0)
;; CHECK: (func $clinit_<once>_@Foo (type $0)
;; CHECK-NEXT: (global.set $$class-initialized@Foo
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $clinit_@once@_@Foo
(func $clinit_<once>_@Foo
(global.set $$class-initialized@Foo (i32.const 1))
)
)
Expand All @@ -141,12 +141,12 @@
;; CHECK: (global $field@Foo (mut i32) (i32.const 0))
(global $field@Foo (mut i32) (i32.const 0))

;; CHECK: (func $clinit_@once@_@Bar (type $0)
;; CHECK: (func $clinit_<once>_@Bar (type $0)
;; CHECK-NEXT: (global.set $field@Foo
;; CHECK-NEXT: (i32.const 1)
;; CHECK-NEXT: )
;; CHECK-NEXT: )
(func $clinit_@once@_@Bar
(func $clinit_<once>_@Bar
;; Note that $clinit is @Bar and field is @Foo.
(global.set $field@Foo (i32.const 1))
)
Expand Down
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