From cb219f0ef632ce74e613164ff65836c4ee7ef285 Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Fri, 29 May 2009 01:44:43 +0000
Subject: More h-registers tricks: folding zext nodes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72558 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/X86/h-registers-3.ll | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 test/CodeGen/X86/h-registers-3.ll

(limited to 'test/CodeGen/X86/h-registers-3.ll')

diff --git a/test/CodeGen/X86/h-registers-3.ll b/test/CodeGen/X86/h-registers-3.ll
new file mode 100644
index 0000000..d353a22
--- /dev/null
+++ b/test/CodeGen/X86/h-registers-3.ll
@@ -0,0 +1,12 @@
+; RUN: llvm-as < %s | llc -march=x86    | grep mov | count 1
+; RUN: llvm-as < %s | llc -march=x86-64 | grep mov | count 1
+
+define zeroext i8 @foo() nounwind ssp {
+entry:
+  %0 = tail call zeroext i16 (...)* @bar() nounwind
+  %1 = lshr i16 %0, 8
+  %2 = trunc i16 %1 to i8
+  ret i8 %2
+}
+
+declare zeroext i16 @bar(...)
-- 
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