Add testing in llvm-lto for ThinLTO caching.

Trying to improve code coverage for `make check`

From: mehdi_amini <mehdi_amini@91177308-0d34-0410-b5e6-96231b3b80d8>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269545 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 27 insertions, 0 deletions

diff --git a/test/ThinLTO/X86/Inputs/cache.ll b/test/ThinLTO/X86/Inputs/cache.ll
new file mode 100644
index 000000000000..aab44cb80c76
--- /dev/null
+++ b/test/ThinLTO/X86/Inputs/cache.ll
@@ -0,0 +1,11 @@
+target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-apple-macosx10.11.0"
+
+
+define i32 @main() {
+entry:
+  call void (...) @globalfunc()
+  ret i32 0
+}
+
+declare void @globalfunc(...)
diff --git a/test/ThinLTO/X86/cache.ll b/test/ThinLTO/X86/cache.ll
new file mode 100644
index 000000000000..6254abe0a936
--- /dev/null
+++ b/test/ThinLTO/X86/cache.ll
@@ -0,0 +1,16 @@
+; RUN: opt -module-summary %s -o %t.bc
+; RUN: opt -module-summary %p/Inputs/funcimport.ll -o %t2.bc
+
+; Verify that enabling caching is working
+; RUN: rm -Rf %t.cache && mkdir %t.cache
+; RUN: llvm-lto -thinlto-action=run -exported-symbol=globalfunc %t2.bc  %t.bc -thinlto-cache-dir %t.cache
+; RUN: ls %t.cache/llvmcache.timestamp
+; RUN: ls %t.cache | count 3
+
+target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-apple-macosx10.11.0"
+
+define void @globalfunc() #0 {
+entry:
+  ret void
+}