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TheRock/compiler/amd-llvm/lld/test/wasm/lto/stub-library-libcall.s
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derek.holloway 7502bf64a4
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44 lines
1.7 KiB
ArmAsm

# RUN: split-file %s %t
# RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-unknown -o %t_main.o %t/main.s
# RUN: llvm-as %S/Inputs/funcs.ll -o %t_funcs.o
# RUN: llvm-as %S/Inputs/libcall.ll -o %t_libcall.o
# RUN: wasm-ld -mllvm -mattr=-bulk-memory,-bulk-memory-opt %t_main.o %t_libcall.o %t_funcs.o %p/Inputs/stub.so -o %t.wasm
# RUN: obj2yaml %t.wasm | FileCheck %s
# The function `func_with_libcall` will generate an undefined reference to
# `memcpy` at LTO time. `memcpy` itself also declared in stub.so and depends
# on `foo`
# If %t_funcs.o is not included in the link we get an undefined symbol reported
# to the dependency of memcpy on the foo export:
# RUN: not wasm-ld -mllvm -mattr=-bulk-memory,-bulk-memory-opt %t_main.o %t_libcall.o %p/Inputs/stub.so -o %t.wasm 2>&1 | FileCheck --check-prefix=MISSING %s
# MISSING: stub.so: undefined symbol: foo. Required by memcpy
#--- main.s
.functype func_with_libcall (i32, i32) -> ()
.globl _start
_start:
.functype _start () -> ()
i32.const 0
i32.const 0
call func_with_libcall
end_function
# CHECK: Imports:
# CHECK-NEXT: - Module: env
# CHECK-NEXT: Field: memcpy
# 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: 3