1 files changed, 93 insertions, 0 deletions
diff --git a/test/wasm/gc-imports.ll b/test/wasm/gc-imports.ll
new file mode 100644
index 0000000000000..fbcb74dbdd3e3
--- /dev/null
+++ b/test/wasm/gc-imports.ll
@@ -0,0 +1,93 @@
+; RUN: llc -filetype=obj %s -o %t.o
+; RUN: yaml2obj %S/Inputs/undefined-globals.yaml -o %t_globals.o
+; RUN: wasm-ld --allow-undefined -o %t1.wasm %t.o %t_globals.o
+
+target triple = "wasm32-unknown-unknown"
+
+declare i64 @unused_undef_function(i64 %arg)
+
+declare i32 @used_undef_function()
+
+declare i64 @use_undef_global()
+
+define hidden void @foo() {
+entry:
+  call i64 @unused_undef_function(i64 0)
+  ret void
+}
+
+define hidden void @_start() {
+entry:
+  call i32 @used_undef_function()
+  call i64 @use_undef_global()
+  ret void
+}
+
+; RUN: obj2yaml %t1.wasm | FileCheck %s
+
+; CHECK:        - Type:            IMPORT
+; CHECK-NEXT:     Imports:
+; CHECK-NEXT:       - Module:          env
+; CHECK-NEXT:         Field:           used_undef_function
+; CHECK-NEXT:         Kind:            FUNCTION
+; CHECK-NEXT:         SigIndex:        0
+; CHECK-NEXT:       - Module:          env
+; CHECK-NEXT:         Field:           used_undef_global
+; CHECK-NEXT:         Kind:            GLOBAL
+; CHECK-NEXT:         GlobalType:      I64
+; CHECK-NEXT:         GlobalMutable:   true
+; CHECK-NEXT:   - Type:
+; CHECK:        - Type:            CUSTOM
+; CHECK-NEXT:     Name:            name
+; CHECK-NEXT:     FunctionNames:
+; CHECK-NEXT:       - Index:           0
+; CHECK-NEXT:         Name:            used_undef_function
+; CHECK-NEXT:       - Index:           1
+; CHECK-NEXT:         Name:            __wasm_call_ctors
+; CHECK-NEXT:       - Index:           2
+; CHECK-NEXT:         Name:            _start
+; CHECK-NEXT:       - Index:           3
+; CHECK-NEXT:         Name:            use_undef_global
+; CHECK-NEXT: ...
+
+; RUN: wasm-ld --no-gc-sections --allow-undefined \
+; RUN:     -o %t1.no-gc.wasm %t.o %t_globals.o
+; RUN: obj2yaml %t1.no-gc.wasm | FileCheck %s -check-prefix=NO-GC
+
+; NO-GC:        - Type:            IMPORT
+; NO-GC-NEXT:     Imports:
+; NO-GC-NEXT:       - Module:          env
+; NO-GC-NEXT:         Field:           unused_undef_function
+; NO-GC-NEXT:         Kind:            FUNCTION
+; NO-GC-NEXT:         SigIndex:        0
+; NO-GC-NEXT:       - Module:          env
+; NO-GC-NEXT:         Field:           used_undef_function
+; NO-GC-NEXT:         Kind:            FUNCTION
+; NO-GC-NEXT:         SigIndex:        1
+; NO-GC-NEXT:       - Module:          env
+; NO-GC-NEXT:         Field:           unused_undef_global
+; NO-GC-NEXT:         Kind:            GLOBAL
+; NO-GC-NEXT:         GlobalType:      I64
+; NO-GC-NEXT:         GlobalMutable:   true
+; NO-GC-NEXT:       - Module:          env
+; NO-GC-NEXT:         Field:           used_undef_global
+; NO-GC-NEXT:         Kind:            GLOBAL
+; NO-GC-NEXT:         GlobalType:      I64
+; NO-GC-NEXT:         GlobalMutable:   true
+; NO-GC-NEXT:   - Type:
+; NO-GC:        - Type:            CUSTOM
+; NO-GC-NEXT:     Name:            name
+; NO-GC-NEXT:     FunctionNames:
+; NO-GC-NEXT:       - Index:           0
+; NO-GC-NEXT:         Name:            unused_undef_function
+; NO-GC-NEXT:       - Index:           1
+; NO-GC-NEXT:         Name:            used_undef_function
+; NO-GC-NEXT:       - Index:           2
+; NO-GC-NEXT:         Name:            __wasm_call_ctors
+; NO-GC-NEXT:       - Index:           3
+; NO-GC-NEXT:         Name:            foo
+; NO-GC-NEXT:       - Index:           4
+; NO-GC-NEXT:         Name:            _start
+; NO-GC-NEXT:       - Index:           5
+; NO-GC-NEXT:         Name:            use_undef_global
+; NO-GC-NEXT: ...