llvm-project/lld/test/wasm/load-undefined.test

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; Verify that the -u / --undefined option is able to pull in symbols from
; an archive, and doesn't error when uses to pull in a symbol already loaded.
;
; RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-unknown %p/Inputs/ret64.s -o %t.o
; RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-unknown %p/Inputs/ret32.s -o %t2.o
; RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-unknown %p/Inputs/start.s -o %t.start.o
; RUN: rm -f %t2.a
; RUN: llvm-ar rcs %t2.a %t2.o
; RUN: wasm-ld %t.start.o --no-gc-sections %t2.a %t.o -o %t.wasm -u ret32 --undefined ret64
; RUN: obj2yaml %t.wasm | FileCheck %s
; RUN: wasm-ld %t.start.o --no-gc-sections %t2.a %t.o -o %t2.wasm
; RUN: obj2yaml %t2.wasm | FileCheck %s -check-prefix=NO-LOAD
; CHECK: Name: name
; CHECK-NEXT: FunctionNames:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Name: __wasm_call_ctors
; CHECK-NEXT: - Index: 1
; CHECK-NEXT: Name: _start
; CHECK-NEXT: - Index: 2
; CHECK-NEXT: Name: ret64
; CHECK-NEXT: - Index: 3
; CHECK-NEXT: Name: ret32
; CHECK-NEXT: GlobalNames:
; CHECK-NEXT: - Index: 0
; CHECK-NEXT: Name: __stack_pointer
; CHECK-NEXT: ...
; NO-LOAD: Name: name
; NO-LOAD-NEXT: FunctionNames:
; NO-LOAD-NEXT: - Index: 0
; NO-LOAD-NEXT: Name: __wasm_call_ctors
; NO-LOAD-NEXT: - Index: 1
; NO-LOAD-NEXT: Name: _start
; NO-LOAD-NEXT: - Index: 2
; NO-LOAD-NEXT: Name: ret64
; NO-LOAD-NEXT: GlobalNames:
; NO-LOAD-NEXT: - Index: 0
; NO-LOAD-NEXT: Name: __stack_pointer
; NO-LOAD-NEXT: ...
; Verify that referencing a symbol that is not found doesn't result in a link
; failure. This matches the behaviour of the ELF linker.
; RUN: wasm-ld %t.start.o -o %t.wasm -u symboldoesnotexist