REQUIRES: aarch64, x86
RUN: split-file %s %t.dir && cd %t.dir

RUN: llvm-mc -filetype=obj -triple=arm64ec-windows symref.s -o symref-arm64ec.obj
RUN: llvm-mc -filetype=obj -triple=arm64ec-windows nsymref.s -o nsymref-arm64ec.obj
RUN: llvm-mc -filetype=obj -triple=aarch64-windows nsymref.s -o nsymref-aarch64.obj
RUN: llvm-mc -filetype=obj -triple=arm64ec-windows sym.s -o sym-arm64ec.obj
RUN: llvm-mc -filetype=obj -triple=x86_64-windows sym.s -o sym-x86_64.obj
RUN: llvm-mc -filetype=obj -triple=aarch64-windows nsym.s -o nsym-aarch64.obj
RUN: llvm-mc -filetype=obj -triple=arm64ec-windows ref-alias.s -o ref-alias.obj
RUN: llvm-mc -filetype=obj -triple=arm64ec-windows ref-thunk.s -o ref-thunk.obj
RUN: llvm-mc -filetype=obj -triple=arm64ec-windows func.s -o func.obj
RUN: llvm-mc -filetype=obj -triple=x86_64-windows func-x86_64.s -o func-x86_64.obj
RUN: llvm-mc -filetype=obj -triple=aarch64-windows %S/Inputs/loadconfig-arm64.s -o loadconfig-arm64.obj
RUN: llvm-mc -filetype=obj -triple=arm64ec-windows %S/Inputs/loadconfig-arm64ec.s -o loadconfig-arm64ec.obj

RUN: llvm-lib -machine:arm64ec -out:sym-arm64ec.lib sym-arm64ec.obj nsym-aarch64.obj
RUN: llvm-lib -machine:amd64 -out:sym-x86_64.lib sym-x86_64.obj
RUN: llvm-lib -machine:arm64ec -out:func.lib func.obj
RUN: llvm-lib -machine:arm64ec -out:func-x86_64.lib func-x86_64.obj
RUN: llvm-lib -machine:arm64ec -out:func-imp.lib -def:func.def

Verify that a symbol can be referenced from ECSYMBOLS.
RUN: lld-link -machine:arm64ec -dll -noentry -out:test.dll symref-arm64ec.obj sym-arm64ec.lib loadconfig-arm64ec.obj

Verify that a symbol can be referenced from a regular archive map when ECSYMBOLS is absent (using an x86_64 archive).
RUN: lld-link -machine:arm64ec -dll -noentry -out:test2.dll symref-arm64ec.obj sym-x86_64.lib loadconfig-arm64ec.obj

Verify that both native and EC symbols can be referenced in a hybrid target.
RUN: lld-link -machine:arm64x -dll -noentry -out:test3.dll symref-arm64ec.obj nsymref-aarch64.obj sym-arm64ec.lib \
RUN:          loadconfig-arm64.obj loadconfig-arm64ec.obj
RUN: lld-link -machine:arm64ec -dll -noentry -out:test3ec.dll symref-arm64ec.obj nsymref-aarch64.obj sym-arm64ec.lib \
RUN:          loadconfig-arm64.obj loadconfig-arm64ec.obj

Ensure that an EC symbol is not resolved using a regular symbol map.
RUN: not lld-link -machine:arm64ec -dll -noentry -out:test-err.dll nsymref-arm64ec.obj sym-arm64ec.lib loadconfig-arm64ec.obj 2>&1 |\
RUN:              FileCheck --check-prefix=ERR %s
ERR: error: undefined symbol: nsym (EC symbol)

Verify that a library symbol can be referenced, even if its name conflicts with an anti-dependency alias.
RUN: lld-link -machine:arm64ec -dll -noentry -out:ref-alias-1.dll ref-alias.obj func.lib loadconfig-arm64ec.obj
RUN: llvm-objdump -d ref-alias-1.dll | FileCheck -check-prefix=DISASM %s
DISASM:      0000000180001000 <.text>:
DISASM-NEXT: 180001000: d65f03c0     ret
DISASM-EMPTY:

RUN: llvm-readobj --hex-dump=.test ref-alias-1.dll | FileCheck -check-prefix=TESTSEC %s
TESTSEC: 0x180005000 00100000

The same test, but with a different input order.
RUN: lld-link -machine:arm64ec -dll -noentry -out:ref-alias-2.dll func.lib ref-alias.obj loadconfig-arm64ec.obj
RUN: llvm-objdump -d ref-alias-2.dll | FileCheck -check-prefix=DISASM %s
RUN: llvm-readobj --hex-dump=.test ref-alias-2.dll | FileCheck -check-prefix=TESTSEC %s

Verify that when an anti-dependency to a guess exit thunk is present, it is overridden by an archive symbol.
RUN: lld-link -machine:arm64ec -dll -noentry -out:ref-thunk-1.dll ref-thunk.obj func.lib loadconfig-arm64ec.obj
RUN: llvm-objdump -d ref-thunk-1.dll | FileCheck -check-prefix=DISASM %s
RUN: llvm-readobj --hex-dump=.test ref-thunk-1.dll | FileCheck -check-prefix=TESTSEC %s

The same test, but with a different input order.
RUN: lld-link -machine:arm64ec -dll -noentry -out:ref-thunk-2.dll func.lib ref-thunk.obj loadconfig-arm64ec.obj
RUN: llvm-objdump -d ref-thunk-2.dll | FileCheck -check-prefix=DISASM %s
RUN: llvm-readobj --hex-dump=.test ref-thunk-2.dll | FileCheck -check-prefix=TESTSEC %s

Pass multiple libraries containing `func` with different manglings and ensure they don't conflict with each other.
RUN: lld-link -machine:arm64ec -dll -noentry -out:ref-thunk-3.dll func.lib loadconfig-arm64ec.obj func-x86_64.lib func-imp.lib ref-thunk.obj
RUN: llvm-objdump -d ref-thunk-3.dll | FileCheck -check-prefix=DISASM %s
RUN: llvm-readobj --hex-dump=.test ref-thunk-3.dll | FileCheck -check-prefix=TESTSEC %s

RUN: lld-link -machine:arm64ec -dll -noentry -out:ref-thunk-4.dll ref-thunk.obj func.lib loadconfig-arm64ec.obj func-x86_64.lib func-imp.lib
RUN: llvm-objdump -d ref-thunk-4.dll | FileCheck -check-prefix=DISASM %s
RUN: llvm-readobj --hex-dump=.test ref-thunk-4.dll | FileCheck -check-prefix=TESTSEC %s

Test linking against an x86_64 library (which uses a demangled function name).
RUN: lld-link -machine:arm64ec -dll -noentry -out:ref-x86-1.dll ref-thunk.obj func-x86_64.lib loadconfig-arm64ec.obj
RUN: llvm-objdump -d ref-x86-1.dll | FileCheck -check-prefix=DISASM-X86 %s
RUN: llvm-readobj --hex-dump=.test ref-x86-1.dll | FileCheck -check-prefix=TESTSEC %s

DISASM-X86:      0000000180001000 <.text>:
DISASM-X86-NEXT: 180001000: c3                           retq

The same test, but with a different input order.
RUN: lld-link -machine:arm64ec -dll -noentry -out:ref-x86-2.dll func-x86_64.lib ref-thunk.obj loadconfig-arm64ec.obj
RUN: llvm-objdump -d ref-x86-2.dll | FileCheck -check-prefix=DISASM-X86 %s
RUN: llvm-readobj --hex-dump=.test ref-x86-2.dll | FileCheck -check-prefix=TESTSEC %s

Check that an alias to the implementation takes precedence over an archive symbol.
RUN: lld-link -machine:arm64ec -dll -noentry -out:ref-x86-2.dll func-x86_64.lib func.obj ref-thunk.obj loadconfig-arm64ec.obj
RUN: llvm-objdump -d ref-x86-2.dll | FileCheck -check-prefix=DISASM %s
RUN: llvm-readobj --hex-dump=.test ref-x86-2.dll | FileCheck -check-prefix=TESTSEC %s

A similar test using -start-lib for linking.
RUN: lld-link -machine:arm64ec -dll -noentry -out:start-lib-1.dll ref-thunk.obj -start-lib func.obj -end-lib loadconfig-arm64ec.obj
RUN: llvm-objdump -d start-lib-1.dll | FileCheck -check-prefix=DISASM %s
RUN: llvm-readobj --hex-dump=.test start-lib-1.dll | FileCheck -check-prefix=TESTSEC %s

RUN: lld-link -machine:arm64ec -dll -noentry -out:start-lib-2.dll ref-thunk.obj -start-lib func.obj -end-lib loadconfig-arm64ec.obj \
RUN:          -start-lib func-x86_64.obj -end-lib func-imp.lib
RUN: llvm-objdump -d ref-thunk-3.dll | FileCheck -check-prefix=DISASM %s
RUN: llvm-readobj --hex-dump=.test ref-thunk-3.dll | FileCheck -check-prefix=TESTSEC %s

#--- symref.s
    .data
    .rva sym

#--- nsymref.s
    .data
    .rva nsym

#--- sym.s
     .data
     .globl sym
sym:
     .word 0

#--- nsym.s
     .data
     .globl nsym
nsym:
     .word 0

#--- ref-alias.s
    .weak_anti_dep func
.set func,"#func"

    .section .test, "r"
    .rva func

#--- ref-thunk.s
    .weak_anti_dep func
.set func, "#func"
    .weak_anti_dep "#func"
.set "#func", thunksym

    .section .test, "r"
    .rva func

    .section .thnk,"xr",discard,thunksym
thunksym:
    mov w0, #2
    ret

#--- func.s
    .text
    .globl "#func"
"#func":
    ret

    .weak_anti_dep func
.set func,"#func"

#--- func-x86_64.s
    .text
    .globl func
func:
    ret

#--- func.def
LIBRARY func.dll
EXPORTS
        func