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-rw-r--r--test/lit/passes/gsi.wast264
1 files changed, 264 insertions, 0 deletions
diff --git a/test/lit/passes/gsi.wast b/test/lit/passes/gsi.wast
index 9b54a98ca..e378fa262 100644
--- a/test/lit/passes/gsi.wast
+++ b/test/lit/passes/gsi.wast
@@ -162,6 +162,270 @@
)
)
+;; Three globals, as above, but now two agree on their values. We can optimize
+;; by comparing to the one that has a single value.
+(module
+ ;; CHECK: (type $struct (struct_subtype (field i32) data))
+ (type $struct (struct i32))
+
+ ;; CHECK: (type $none_=>_none (func_subtype func))
+
+ ;; CHECK: (global $global1 (ref $struct) (struct.new $struct
+ ;; CHECK-NEXT: (i32.const 42)
+ ;; CHECK-NEXT: ))
+ (global $global1 (ref $struct) (struct.new $struct
+ (i32.const 42)
+ ))
+
+ ;; CHECK: (global $global2 (ref $struct) (struct.new $struct
+ ;; CHECK-NEXT: (i32.const 1337)
+ ;; CHECK-NEXT: ))
+ (global $global2 (ref $struct) (struct.new $struct
+ (i32.const 1337)
+ ))
+
+ ;; CHECK: (global $global3 (ref $struct) (struct.new $struct
+ ;; CHECK-NEXT: (i32.const 1337)
+ ;; CHECK-NEXT: ))
+ (global $global3 (ref $struct) (struct.new $struct
+ (i32.const 1337)
+ ))
+
+ ;; CHECK: (func $test (type $none_=>_none)
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (select
+ ;; CHECK-NEXT: (i32.const 42)
+ ;; CHECK-NEXT: (i32.const 1337)
+ ;; CHECK-NEXT: (ref.eq
+ ;; CHECK-NEXT: (ref.as_non_null
+ ;; CHECK-NEXT: (ref.null $struct)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (global.get $global1)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $test
+ (drop
+ (struct.get $struct 0
+ (ref.null $struct)
+ )
+ )
+ )
+)
+
+;; As above, but move the different value of the three to the middle.
+(module
+ ;; CHECK: (type $struct (struct_subtype (field i32) data))
+ (type $struct (struct i32))
+
+ ;; CHECK: (type $none_=>_none (func_subtype func))
+
+ ;; CHECK: (global $global1 (ref $struct) (struct.new $struct
+ ;; CHECK-NEXT: (i32.const 1337)
+ ;; CHECK-NEXT: ))
+ (global $global1 (ref $struct) (struct.new $struct
+ (i32.const 1337)
+ ))
+
+ ;; CHECK: (global $global2 (ref $struct) (struct.new $struct
+ ;; CHECK-NEXT: (i32.const 42)
+ ;; CHECK-NEXT: ))
+ (global $global2 (ref $struct) (struct.new $struct
+ (i32.const 42)
+ ))
+
+ ;; CHECK: (global $global3 (ref $struct) (struct.new $struct
+ ;; CHECK-NEXT: (i32.const 1337)
+ ;; CHECK-NEXT: ))
+ (global $global3 (ref $struct) (struct.new $struct
+ (i32.const 1337)
+ ))
+
+ ;; CHECK: (func $test (type $none_=>_none)
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (select
+ ;; CHECK-NEXT: (i32.const 42)
+ ;; CHECK-NEXT: (i32.const 1337)
+ ;; CHECK-NEXT: (ref.eq
+ ;; CHECK-NEXT: (ref.as_non_null
+ ;; CHECK-NEXT: (ref.null $struct)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (global.get $global2)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $test
+ (drop
+ (struct.get $struct 0
+ (ref.null $struct)
+ )
+ )
+ )
+)
+
+;; As above, but move the different value of the three to the end.
+(module
+ ;; CHECK: (type $struct (struct_subtype (field i32) data))
+ (type $struct (struct i32))
+
+ ;; CHECK: (type $none_=>_none (func_subtype func))
+
+ ;; CHECK: (global $global1 (ref $struct) (struct.new $struct
+ ;; CHECK-NEXT: (i32.const 1337)
+ ;; CHECK-NEXT: ))
+ (global $global1 (ref $struct) (struct.new $struct
+ (i32.const 1337)
+ ))
+
+ ;; CHECK: (global $global2 (ref $struct) (struct.new $struct
+ ;; CHECK-NEXT: (i32.const 1337)
+ ;; CHECK-NEXT: ))
+ (global $global2 (ref $struct) (struct.new $struct
+ (i32.const 1337)
+ ))
+
+ ;; CHECK: (global $global3 (ref $struct) (struct.new $struct
+ ;; CHECK-NEXT: (i32.const 42)
+ ;; CHECK-NEXT: ))
+ (global $global3 (ref $struct) (struct.new $struct
+ (i32.const 42)
+ ))
+
+ ;; CHECK: (func $test (type $none_=>_none)
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (select
+ ;; CHECK-NEXT: (i32.const 42)
+ ;; CHECK-NEXT: (i32.const 1337)
+ ;; CHECK-NEXT: (ref.eq
+ ;; CHECK-NEXT: (ref.as_non_null
+ ;; CHECK-NEXT: (ref.null $struct)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (global.get $global3)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $test
+ (drop
+ (struct.get $struct 0
+ (ref.null $struct)
+ )
+ )
+ )
+)
+
+;; Four values, two pairs of equal ones. We do not optimize this.
+(module
+ ;; CHECK: (type $struct (struct_subtype (field i32) data))
+ (type $struct (struct i32))
+
+ ;; CHECK: (type $none_=>_none (func_subtype func))
+
+ ;; CHECK: (global $global1 (ref $struct) (struct.new $struct
+ ;; CHECK-NEXT: (i32.const 42)
+ ;; CHECK-NEXT: ))
+ (global $global1 (ref $struct) (struct.new $struct
+ (i32.const 42)
+ ))
+
+ ;; CHECK: (global $global2 (ref $struct) (struct.new $struct
+ ;; CHECK-NEXT: (i32.const 42)
+ ;; CHECK-NEXT: ))
+ (global $global2 (ref $struct) (struct.new $struct
+ (i32.const 42)
+ ))
+
+ ;; CHECK: (global $global3 (ref $struct) (struct.new $struct
+ ;; CHECK-NEXT: (i32.const 1337)
+ ;; CHECK-NEXT: ))
+ (global $global3 (ref $struct) (struct.new $struct
+ (i32.const 1337)
+ ))
+
+ ;; CHECK: (global $global4 (ref $struct) (struct.new $struct
+ ;; CHECK-NEXT: (i32.const 1337)
+ ;; CHECK-NEXT: ))
+ (global $global4 (ref $struct) (struct.new $struct
+ (i32.const 1337)
+ ))
+
+ ;; CHECK: (func $test (type $none_=>_none)
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (struct.get $struct 0
+ ;; CHECK-NEXT: (ref.null $struct)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $test
+ (drop
+ (struct.get $struct 0
+ (ref.null $struct)
+ )
+ )
+ )
+)
+
+;; Four values, three equal and one unique. We can optimize this with a single
+;; comparison on the unique one.
+(module
+ ;; CHECK: (type $struct (struct_subtype (field i32) data))
+ (type $struct (struct i32))
+
+ ;; CHECK: (type $none_=>_none (func_subtype func))
+
+ ;; CHECK: (global $global1 (ref $struct) (struct.new $struct
+ ;; CHECK-NEXT: (i32.const 42)
+ ;; CHECK-NEXT: ))
+ (global $global1 (ref $struct) (struct.new $struct
+ (i32.const 42)
+ ))
+
+ ;; CHECK: (global $global2 (ref $struct) (struct.new $struct
+ ;; CHECK-NEXT: (i32.const 42)
+ ;; CHECK-NEXT: ))
+ (global $global2 (ref $struct) (struct.new $struct
+ (i32.const 42)
+ ))
+
+ ;; CHECK: (global $global3 (ref $struct) (struct.new $struct
+ ;; CHECK-NEXT: (i32.const 1337)
+ ;; CHECK-NEXT: ))
+ (global $global3 (ref $struct) (struct.new $struct
+ (i32.const 1337)
+ ))
+
+ ;; CHECK: (global $global4 (ref $struct) (struct.new $struct
+ ;; CHECK-NEXT: (i32.const 42)
+ ;; CHECK-NEXT: ))
+ (global $global4 (ref $struct) (struct.new $struct
+ (i32.const 42)
+ ))
+
+ ;; CHECK: (func $test (type $none_=>_none)
+ ;; CHECK-NEXT: (drop
+ ;; CHECK-NEXT: (select
+ ;; CHECK-NEXT: (i32.const 1337)
+ ;; CHECK-NEXT: (i32.const 42)
+ ;; CHECK-NEXT: (ref.eq
+ ;; CHECK-NEXT: (ref.as_non_null
+ ;; CHECK-NEXT: (ref.null $struct)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: (global.get $global3)
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ ;; CHECK-NEXT: )
+ (func $test
+ (drop
+ (struct.get $struct 0
+ (ref.null $struct)
+ )
+ )
+ )
+)
+
;; A struct.new inside a function stops us from optimizing.
(module
;; CHECK: (type $struct (struct_subtype (field i32) data))
generated by cgit v1.2.3 (git 2.39.1) at 2025-08-22 17:58:20 +0000