1 files changed, 45 insertions, 5 deletions
diff --git a/test/ThinLTO/X86/distributed_import.ll b/test/ThinLTO/X86/distributed_import.ll
index 0a3f9c07f257..82cc57c48303 100644
--- a/test/ThinLTO/X86/distributed_import.ll
+++ b/test/ThinLTO/X86/distributed_import.ll
@@ -1,15 +1,50 @@
-; RUN: opt -module-summary %s -o %t1.bc
-; RUN: opt -module-summary %p/Inputs/distributed_import.ll -o %t2.bc
+; Test distributed build thin link output from llvm-lto2
 
-; RUN: llvm-lto2 %t1.bc %t2.bc -o %t.o -save-temps \
+; Generate bitcode files with summary, as well as minimized bitcode without
+; the debug metadata for the thin link.
+; RUN: opt -thinlto-bc %s -thin-link-bitcode-file=%t1.thinlink.bc -o %t1.bc
+; RUN: opt -thinlto-bc %p/Inputs/distributed_import.ll -thin-link-bitcode-file=%t2.thinlink.bc -o %t2.bc
+
+; First perform the thin link on the normal bitcode file.
+; RUN: llvm-lto2 run %t1.bc %t2.bc -o %t.o -save-temps \
+; RUN:     -thinlto-distributed-indexes \
+; RUN:     -r=%t1.bc,g, \
+; RUN:     -r=%t1.bc,f,px \
+; RUN:     -r=%t2.bc,g,px
+; RUN: opt -function-import -summary-file %t1.bc.thinlto.bc %t1.bc -o %t1.out
+; RUN: opt -function-import -summary-file %t2.bc.thinlto.bc %t2.bc -o %t2.out
+; RUN: llvm-dis -o - %t2.out | FileCheck %s
+
+; Save the generated index files.
+; RUN: cp %t1.bc.thinlto.bc %t1.bc.thinlto.bc.orig
+; RUN: cp %t2.bc.thinlto.bc %t2.bc.thinlto.bc.orig
+
+; Copy the minimized bitcode to the regular bitcode path so the module
+; paths in the index are the same (save the regular bitcode for use again
+; further down).
+; RUN: cp %t1.bc %t1.bc.sv
+; RUN: cp %t1.thinlink.bc %t1.bc
+; RUN: cp %t2.bc %t2.bc.sv
+; RUN: cp %t2.thinlink.bc %t2.bc
+
+; Next perform the thin link on the minimized bitcode files, and compare dumps
+; of the resulting indexes to the above dumps to ensure they are identical.
+; RUN: rm -f %t1.bc.thinlto.bc %t2.bc.thinlto.bc
+; RUN: llvm-lto2 run %t1.bc %t2.bc -o %t.o -save-temps \
 ; RUN:     -thinlto-distributed-indexes \
 ; RUN:     -r=%t1.bc,g, \
 ; RUN:     -r=%t1.bc,f,px \
 ; RUN:     -r=%t2.bc,g,px
-; RUN:  opt -function-import -summary-file %t1.bc.thinlto.bc %t1.bc -o %t1.out
+; RUN: diff %t1.bc.thinlto.bc.orig %t1.bc.thinlto.bc
+; RUN: diff %t2.bc.thinlto.bc.orig %t2.bc.thinlto.bc
+
+; Make sure importing occurs as expected
+; RUN: cp %t1.bc.sv %t1.bc
+; RUN: cp %t2.bc.sv %t2.bc
 ; RUN: opt -function-import -summary-file %t2.bc.thinlto.bc %t2.bc -o %t2.out
 ; RUN: llvm-dis -o - %t2.out | FileCheck %s
-; CHECK: @G.llvm.0
+
+; CHECK: @G.llvm.
 
 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 
@@ -20,3 +55,8 @@ entry:
   call i32 (...) @g()
   ret void
 }
+
+!llvm.dbg.cu = !{}
+
+!1 = !{i32 2, !"Debug Info Version", i32 3}
+!llvm.module.flags = !{!1}