1 files changed, 35 insertions, 0 deletions
diff --git a/test/ELF/lto/thinlto.ll b/test/ELF/lto/thinlto.ll
new file mode 100644
index 000000000000..160c83a18abf
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+++ b/test/ELF/lto/thinlto.ll
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+; Basic ThinLTO tests.
+; RUN: opt -module-summary %s -o %t.o
+; RUN: opt -module-summary %p/Inputs/thinlto.ll -o %t2.o
+
+; First force single-threaded mode
+; RUN: ld.lld -save-temps --thinlto-jobs=1 -shared %t.o %t2.o -o %t
+; RUN: llvm-nm %t0.lto.o | FileCheck %s --check-prefix=NM1-SINGLE
+; RUN: llvm-nm %t1.lto.o | FileCheck %s --check-prefix=NM2-SINGLE
+
+; NM1-SINGLE: T f
+; NM2-SINGLE: T g
+
+; Next force multi-threaded mode
+; RUN: ld.lld -save-temps --thinlto-jobs=2 -shared %t.o %t2.o -o %t2
+; RUN: llvm-nm %t20.lto.o | FileCheck %s --check-prefix=NM1
+; RUN: llvm-nm %t21.lto.o | FileCheck %s --check-prefix=NM2
+
+; NM1: T f
+; NM2: T g
+
+; Then check without --thinlto-jobs (which currently default to hardware_concurrency)
+; We just check that we don't crash or fail (as it's not sure which tests are
+; stable on the final output file itself.
+; RUN: ld.lld -shared %t.o %t2.o -o %t2
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+declare void @g(...)
+
+define void @f() {
+entry:
+  call void (...) @g()
+  ret void
+}