Migrate three legacy pass tests to lit

test/lit/passes/duplicate-import-elimination.wast

@@ -0,0 +1,40 @@
+;; NOTE: Assertions have been generated by update_lit_checks.py --all-items and should not be edited.
+;; RUN: foreach %s %t wasm-opt --duplicate-import-elimination -S -o - | filecheck %s
+
+;; Merge imports with matching signatures and update calls, elements, and start.
+;; The import with a different signature must remain distinct.
+
+(module
+  ;; CHECK:      (type $0 (func))
+
+  ;; CHECK:      (type $1 (func (param i32)))
+
+  ;; CHECK:      (import "env" "waka" (func $foo))
+  (import "env" "waka" (func $foo))
+  (import "env" "waka" (func $bar))
+  ;; CHECK:      (import "env" "waka" (func $wrong (param i32)))
+  (import "env" "waka" (func $wrong (param i32)))
+  (table 2 2 funcref)
+  (elem (i32.const 0) $foo $bar)
+  (start $bar)
+  ;; CHECK:      (table $0 2 2 funcref)
+
+  ;; CHECK:      (elem $0 (i32.const 0) $foo $foo)
+
+  ;; CHECK:      (export "baz" (func $baz))
+
+  ;; CHECK:      (start $foo)
+
+  ;; CHECK:      (func $baz
+  ;; CHECK-NEXT:  (call $foo)
+  ;; CHECK-NEXT:  (call $foo)
+  ;; CHECK-NEXT:  (call $wrong
+  ;; CHECK-NEXT:   (i32.const 1)
+  ;; CHECK-NEXT:  )
+  ;; CHECK-NEXT: )
+  (func $baz (export "baz")
+    (call $foo)
+    (call $bar)
+    (call $wrong (i32.const 1))
+  )
+)

test/lit/passes/remove-unused-names_precompute.wast

@@ -0,0 +1,57 @@
+;; NOTE: Assertions have been generated by update_lit_checks.py --all-items and should not be edited.
+;; RUN: foreach %s %t wasm-opt --remove-unused-names --precompute -S -o - | filecheck %s
+
+;; Preserve the interaction between name removal and a constant br_table target.
+
+(module
+ ;; CHECK:      (type $0 (func (param i32)))
+
+ ;; CHECK:      (memory $0 256 256)
+ (memory $0 256 256)
+ ;; CHECK:      (func $__ZN10WasmAssertC2Ev__async_cb (param $$0 i32)
+ ;; CHECK-NEXT:  (block $switch-default
+ ;; CHECK-NEXT:   (nop)
+ ;; CHECK-NEXT:   (block
+ ;; CHECK-NEXT:    (i32.store
+ ;; CHECK-NEXT:     (i32.const 12)
+ ;; CHECK-NEXT:     (i32.const 26)
+ ;; CHECK-NEXT:    )
+ ;; CHECK-NEXT:    (return)
+ ;; CHECK-NEXT:   )
+ ;; CHECK-NEXT:  )
+ ;; CHECK-NEXT:  (block
+ ;; CHECK-NEXT:   (local.set $$0
+ ;; CHECK-NEXT:    (i32.const 4)
+ ;; CHECK-NEXT:   )
+ ;; CHECK-NEXT:   (i32.store
+ ;; CHECK-NEXT:    (local.get $$0)
+ ;; CHECK-NEXT:    (i32.const 1)
+ ;; CHECK-NEXT:   )
+ ;; CHECK-NEXT:  )
+ ;; CHECK-NEXT: )
+ (func $__ZN10WasmAssertC2Ev__async_cb (param $$0 i32)
+  (block $switch-default
+   (block $switch-case
+    (br_table $switch-case $switch-default
+     (i32.const 0)
+    )
+   )
+   (block
+    (i32.store
+     (i32.const 12)
+     (i32.const 26)
+    )
+    (return)
+   )
+  )
+  (block
+   (local.set $$0
+    (i32.const 4)
+   )
+   (i32.store
+    (local.get $$0)
+    (i32.const 1)
+   )
+  )
+ )
+)

test/lit/passes/set-globals.wast

@@ -0,0 +1,15 @@
+;; NOTE: Assertions have been generated by update_lit_checks.py --all-items and should not be edited.
+;; RUN: foreach %s %t wasm-opt --set-globals --pass-arg=set-globals@foo=1337,bar=42 -S -o - | filecheck %s
+
+;; Set both an imported i32 global and a defined i64 global using pass arguments.
+
+(module
+ ;; an imported i32
+ (import "env" "in" (global $foo i32))
+
+ ;; a defined i64
+ ;; CHECK:      (global $foo i32 (i32.const 1337))
+
+ ;; CHECK:      (global $bar i64 (i64.const 42))
+ (global $bar i64 (i64.const 1234))
+)