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TheRock/compiler/amd-llvm/lld/test/wasm/lto/stub-library.s
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49 lines
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ArmAsm

## The function `bar` is declared in stub.so and depends on `foo` which is
## defined in an LTO object. We also test the case where the LTO object is
## with an archive file.
## The function `baz` is declared in stub.so and depends on `quux`, and both
## `baz` and `quux` are defined in an LTO object. When `baz` and `quux` are
## DCE'd and become undefined in the LTO process, wasm-ld should not try to
## export the (nonexistent) `quux`.
## This verifies that stub library dependencies (which are required exports) can
## be defined in LTO objects, even when they are within archive files.
# RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-unknown -o %t.o %s
# RUN: mkdir -p %t
# RUN: llvm-as %S/Inputs/funcs.ll -o %t/funcs.o
# RUN: wasm-ld %t.o %t/funcs.o %p/Inputs/stub.so -o %t.wasm
# RUN: obj2yaml %t.wasm | FileCheck %s
## Run the same test but with funcs.o inside of an archive file.
# RUN: rm -f %t/libfuncs.a
# RUN: llvm-ar rcs %t/libfuncs.a %t/funcs.o
# RUN: wasm-ld %t.o %t/libfuncs.a %p/Inputs/stub.so -o %t2.wasm
# RUN: obj2yaml %t2.wasm | FileCheck %s
.functype bar () -> ()
.globl _start
_start:
.functype _start () -> ()
call bar
end_function
# CHECK: Imports:
# CHECK-NEXT: - Module: env
# CHECK-NEXT: Field: bar
# CHECK-NEXT: Kind: FUNCTION
# CHECK-NEXT: SigIndex: 0
# CHECK: Exports:
# CHECK-NEXT: - Name: memory
# CHECK-NEXT: Kind: MEMORY
# CHECK-NEXT: Index: 0
# CHECK-NEXT: - Name: _start
# CHECK-NEXT: Kind: FUNCTION
# CHECK-NEXT: Index: 1
# CHECK-NEXT: - Name: foo
# CHECK-NEXT: Kind: FUNCTION
# CHECK-NEXT: Index: 2
# CHECK-NOT: - Name: quux