From 1f65039f06766f2fd1cd9f70d0932c8db229e390 Mon Sep 17 00:00:00 2001
From: Mehdi Amini <mehdi.amini@apple.com>
Date: Wed, 27 Apr 2016 01:47:46 +0000
Subject: [PATCH] Add a test for r267655: Support "preserving" the summary
 information when using setModule() API in LTOCodeGenerator

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 267656
---
 llvm/test/LTO/X86/set-merged-thin.ll | 39 ++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 llvm/test/LTO/X86/set-merged-thin.ll

diff --git a/llvm/test/LTO/X86/set-merged-thin.ll b/llvm/test/LTO/X86/set-merged-thin.ll
new file mode 100644
index 0000000..715bc80
--- /dev/null
+++ b/llvm/test/LTO/X86/set-merged-thin.ll
@@ -0,0 +1,39 @@
+; RUN: opt  -module-summary  < %s > %t1
+; RUN: llvm-lto -save-merged-module -exported-symbol=_main -set-merged-module -o %t2 %t1
+; RUN: llvm-bcanalyzer -dump %t2.merged.bc | FileCheck %s
+; Verify that the module includes the ThinLTO informations
+; CHECK: GLOBALVAL_SUMMARY_BLOCK
+
+
+target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-apple-macosx10.10.0"
+
+; CHECK: _main
+; CHECK: movl $132
+define i32 @_Z3fooi(i32 %a) {
+entry:
+  %a.addr = alloca i32, align 4
+  store i32 %a, i32* %a.addr, align 4
+  %0 = load i32, i32* %a.addr, align 4
+  %1 = load i32, i32* %a.addr, align 4
+  %call = call i32 @_Z4bar2i(i32 %1)
+  %add = add nsw i32 %0, %call
+  ret i32 %add
+}
+
+define i32 @_Z4bar2i(i32 %a) {
+entry:
+  %a.addr = alloca i32, align 4
+  store i32 %a, i32* %a.addr, align 4
+  %0 = load i32, i32* %a.addr, align 4
+  %mul = mul nsw i32 2, %0
+  ret i32 %mul
+}
+
+define i32 @main() {
+entry:
+  %retval = alloca i32, align 4
+  store i32 0, i32* %retval
+  %call = call i32 @_Z3fooi(i32 44)
+  ret i32 %call
+}
-- 
2.7.4