REQUIRES: x86

## Test that the LLD options /lldsavetemps and -thinlto-emit-imports-files
## function correctly with DTLTO we also check that index files 
## (-thinlto-emit-index-files) are not emitted with DTLTO.

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

RUN: sed 's/@t1/@t2/g' t1.ll > t2.ll

## Generate ThinLTO bitcode files. Note that t3.bc will not be used by the
## linker.
RUN: opt -thinlto-bc t1.ll -o t1.bc
RUN: opt -thinlto-bc t2.ll -o t2.bc
RUN: cp t1.bc t3.bc

## Generate object files for mock.py to return.
RUN: llc t1.ll --filetype=obj -o t1.obj
RUN: llc t2.ll --filetype=obj -o t2.obj

## Create response file containing shared ThinLTO linker arguments.
## -start-lib/-end-lib is used to test the special case where unused lazy
## bitcode inputs result in empty index/imports files.
## Note that mock.py does not do any compilation; instead, it simply writes
## the contents of the object files supplied on the command line into the
## output object files in job order.
RUN: echo "/entry:t1 /subsystem:console \
RUN:   t1.bc t2.bc -start-lib t3.bc -end-lib /out:my.exe \
RUN:   -thinlto-distributor:\"%python\" \
RUN:   -thinlto-distributor-arg:\"%llvm_src_root/utils/dtlto/mock.py\" \
RUN:   -thinlto-distributor-arg:t1.obj \
RUN:   -thinlto-distributor-arg:t2.obj \
RUN:   -thinlto-remote-compiler:fake.exe" > l.rsp

## Check that without extra flags, no index/imports files are produced and
## backend temp files are removed.
RUN: lld-link @l.rsp
RUN: ls | FileCheck %s \
RUN:   --check-prefixes=NOBACKEND,NOOTHERS

## Check that with /lldsavetemps and -thinlto-emit-imports-files backend 
## tempoary files are retained and no index/imports files are produced.
RUN: rm -f *.imports *.thinlto.bc
RUN: lld-link @l.rsp  /lldsavetemps -thinlto-emit-imports-files
RUN: ls | sort | FileCheck %s \
RUN:   --check-prefixes=BACKEND,NOOTHERS

## JSON jobs description, retained with --save-temps.
## Note that DTLTO temporary files include a PID component.
NOBACKEND-NOT: {{^}}my.[[#]].dist-file.json{{$}}
BACKEND:       {{^}}my.[[#]].dist-file.json{{$}}

## Index/imports files for t1.bc.
NOOTHERS-NOT: {{^}}t1.bc.imports{{$}}
NOOTHERS-NOT: {{^}}t1.bc.thinlto.bc{{$}}

## Index/imports files for t2.bc.
NOOTHERS-NOT: {{^}}t2.bc.imports{{$}}
NOOTHERS-NOT: {{^}}t2.bc.thinlto.bc{{$}}

## Empty index/imports files for unused t3.bc.
NOOTHERS-NOT: {{^}}t3.bc.imports{{$}}
NOOTHERS-NOT: {{^}}t3.bc.thinlto.bc{{$}}

#--- t1.ll
target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-windows-msvc"

define void @t1() {
  ret void
}