Imported Upstream version 6.0.0.172

Former-commit-id: f3cc9b82f3e5bd8f0fd3ebc098f789556b44e9cd

external/llvm/test/LTO/X86/no-undefined-puts-when-implemented.ll

@@ -0,0 +1,41 @@
+; RUN: llvm-as <%s >%t1
+; RUN: llvm-lto -exported-symbol=_uses_puts -exported-symbol=_uses_printf -o - %t1 | \
+; RUN: llvm-nm - | \
+; RUN: FileCheck %s
+; rdar://problem/16165191
+; runtime library implementations should not be renamed
+
+target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-apple-darwin11"
+
+@str = private unnamed_addr constant [13 x i8] c"hello world\0A\00"
+
+; CHECK-NOT: U _puts
+; CHECK: T _uses_printf
+; CHECK: T _uses_puts
+define i32 @uses_puts(i32 %i) {
+entry:
+  %s = call i8* @foo(i32 %i)
+  %ret = call i32 @puts(i8* %s)
+  ret i32 %ret
+}
+define i32 @uses_printf(i32 %i) {
+entry:
+  %s = getelementptr [13 x i8], [13 x i8]* @str, i64 0, i64 0
+  call i32 (i8*, ...) @printf(i8* %s)
+  ret i32 0
+}
+
+define hidden i32 @printf(i8* readonly nocapture %fmt, ...) {
+entry:
+  %ret = call i32 @bar(i8* %fmt)
+  ret i32 %ret
+}
+define hidden i32 @puts(i8* %s) {
+entry:
+  %ret = call i32 @bar(i8* %s)
+  ret i32 %ret
+}
+
+declare i8* @foo(i32)
+declare i32 @bar(i8*)