From 78b1fb01466818fd1296cd32805d4ecf1655fef8 Mon Sep 17 00:00:00 2001
From: Amjad Aboud <amjad.aboud@intel.com>
Date: Fri, 13 May 2016 12:46:57 +0000
Subject: Assure calling "cld" instruction in prologue of X86 interrupt handler
 function.

Differential Revision: http://reviews.llvm.org/D18725

llvm-svn: 269413
---
 llvm/test/CodeGen/X86/x86-interrupt_cld.ll | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 llvm/test/CodeGen/X86/x86-interrupt_cld.ll

(limited to 'llvm/test/CodeGen')

diff --git a/llvm/test/CodeGen/X86/x86-interrupt_cld.ll b/llvm/test/CodeGen/X86/x86-interrupt_cld.ll
new file mode 100644
index 00000000000..bbb109eb633
--- /dev/null
+++ b/llvm/test/CodeGen/X86/x86-interrupt_cld.ll
@@ -0,0 +1,17 @@
+; RUN: llc -mtriple=x86_64-unknown-unknown < %s | FileCheck %s
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Checks that interrupt handler code calls cld before calling an external
+;; function.
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+; CHECK: cld
+; CHECK: call
+
+define x86_intrcc void @foo(i8* %frame) {
+  call void @bar()
+  ret void
+}
+
+declare void @bar()
+
-- 
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