REQUIRES: lld-link

## Test that a DTLTO link succeeds and outputs the expected set of files
## correctly when thin archives are present.

RUN: rm -rf %t && split-file %s %t && cd %t

## Compile bitcode. -O2 is required for cross-module importing.
RUN: %clang -O2 --target=x86_64-pc-windows-msvc -flto=thin -c \
RUN:   foo.c bar.c dog.c cat.c start.c

## Generate thin archives.
RUN: lld-link /lib /llvmlibthin /out:foo.lib foo.o
## Create this bitcode thin archive in a subdirectory to test the expansion of
## the path to a bitcode file that is referenced using "..", e.g., in this case
## "../bar.o".
RUN: mkdir lib
RUN: lld-link /lib /llvmlibthin /out:lib/bar.lib bar.o
## Create this bitcode thin archive with an absolute path entry containing "..".
RUN: lld-link /lib /llvmlibthin /out:dog.lib %t/lib/../dog.o
RUN: lld-link /lib /llvmlibthin /out:cat.lib cat.o
RUN: lld-link /lib /llvmlibthin /out:start.lib start.o

## Link from a different directory to ensure that thin archive member paths are
## resolved correctly relative to the archive locations.
RUN: mkdir %t/out && cd %t/out
RUN: lld-link /subsystem:console /machine:x64 /entry:start /out:my.exe  \
RUN:   %t/foo.lib %t/lib/bar.lib ../start.lib %t/cat.lib \
RUN:   /includeoptional:dog ../dog.lib \
RUN:   -thinlto-distributor:%python \
RUN:   -thinlto-distributor-arg:%llvm_src_root/utils/dtlto/local.py \
RUN:   -thinlto-remote-compiler:%clang \
RUN:   /lldsavetemps

## Check that the required output files have been created.
RUN: ls | FileCheck %s --check-prefix=OUTPUTS --implicit-check-not=cat

## JSON jobs description.
OUTPUTS-DAG: my.[[#PID:]].dist-file.json

## Individual summary index files.
OUTPUTS-DAG: start.1.[[#PID]].native.o.thinlto.bc{{$}}
OUTPUTS-DAG:   dog.2.[[#PID]].native.o.thinlto.bc{{$}}
OUTPUTS-DAG:   foo.3.[[#PID]].native.o.thinlto.bc{{$}}
OUTPUTS-DAG:   bar.4.[[#PID]].native.o.thinlto.bc{{$}}

## Native output object files.
OUTPUTS-DAG: start.1.[[#PID]].native.o{{$}}
OUTPUTS-DAG:   dog.2.[[#PID]].native.o{{$}}
OUTPUTS-DAG:   foo.3.[[#PID]].native.o{{$}}
OUTPUTS-DAG:   bar.4.[[#PID]].native.o{{$}}


## It is important that cross-module inlining occurs for this test to show that Clang can
## successfully load the bitcode file dependencies recorded in the summary indices.
## Explicitly check that the expected importing has occurred.

RUN: llvm-dis start.1.*.native.o.thinlto.bc -o - | \
RUN:   FileCheck %s --check-prefixes=FOO,BAR,START

RUN: llvm-dis dog.2.*.native.o.thinlto.bc -o - | \
RUN:   FileCheck %s --check-prefixes=FOO,BAR,DOG,START

RUN: llvm-dis foo.3.*.native.o.thinlto.bc -o - | \
RUN:   FileCheck %s --check-prefixes=FOO,BAR,START

RUN: llvm-dis bar.4.*.native.o.thinlto.bc -o - | \
RUN:   FileCheck %s --check-prefixes=FOO,BAR,START

FOO-DAG:   foo.o
BAR-DAG:   bar.o
DOG-DAG:   dog.o
START-DAG: start.o


#--- foo.c
extern int bar(int), start(int);
__attribute__((retain)) int foo(int x) { return x + bar(x) + start(x); }

#--- bar.c
extern int foo(int), start(int);
__attribute__((retain)) int bar(int x) { return x + foo(x) + start(x); }

#--- dog.c
extern int foo(int), bar(int), start(int);
__attribute__((retain)) int dog(int x) { return x + foo(x) + bar(x) + start(x); }

#--- cat.c
__attribute__((retain)) void cat(int x) {}

#--- start.c
extern int foo(int), bar(int);
__attribute__((retain)) int start(int x) { return x + foo(x) + bar(x); }