================
@@ -0,0 +1,44 @@
+/// Check DTLTO options are forwarded to the linker.
+
+// REQUIRES: lld
+
+// RUN: echo "-target x86_64-linux-gnu \
+// RUN: -Xdist distarg1 \
+// RUN: -Xdist distarg2 \
+// RUN: -fuse-ld=lld" > %t.rsp
+
+
+/// Check that options are forwarded as expected with --thinlto-distributor=.
+// RUN: %clang -### @%t.rsp -fthinlto-distributor=dist.exe %s 2>&1 | \
+// RUN: FileCheck %s --implicit-check-not=warning
+
+// CHECK: ld.lld
+// CHECK-SAME: "--thinlto-distributor=dist.exe"
+// CHECK-SAME: "--thinlto-remote-opt-tool={{.*}}clang
+// CHECK-SAME: "-mllvm=-thinlto-distributor-arg=distarg1"
+// CHECK-SAME: "-mllvm=-thinlto-distributor-arg=distarg2"
+
+
+/// Check that options are not added without --thinlto-distributor= and
+/// that there is an unused option warning issued for -Xdist options. We
+/// specify -flto here as these options should be unaffected by it.
+// RUN: %clang -### @%t.rsp -flto=thin %s 2>&1 | \
+// RUN: FileCheck %s --check-prefixes=NONE,NOMORE
--implicit-check-not=warning
+
+// NONE: warning: argument unused during compilation: '-Xdist distarg1'
+// NONE: warning: argument unused during compilation: '-Xdist distarg2'
+// NONE: ld.lld
+// NOMORE-NOT: --thinlto-distributor=
+// NOMORE-NOT: --thinlto-remote-opt-tool=
+// NOMORE-NOT: -mllvm
+// NOMORE-NOT: -thinlto-distributor-arg=
+
+
+/// Check the expected arguments are forwarded by default with only
+/// --thinlto-distributor=.
+// RUN: %clang -### -target x86_64-linux-gnu -fthinlto-distributor=dist.exe
-fuse-ld=lld %s 2>&1 | \
----------------
bd1976bris wrote:
Done. Thanks.
https://github.com/llvm/llvm-project/pull/126654
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