From d2e985fd323c167e20f77b045a1d99ad166e65db Mon Sep 17 00:00:00 2001
From: rdivacky <rdivacky@FreeBSD.org>
Date: Wed, 18 Nov 2009 14:58:34 +0000
Subject: Update LLVM to r89205.

---
 test/Transforms/InstCombine/invariant.ll | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 test/Transforms/InstCombine/invariant.ll

(limited to 'test/Transforms/InstCombine/invariant.ll')

diff --git a/test/Transforms/InstCombine/invariant.ll b/test/Transforms/InstCombine/invariant.ll
new file mode 100644
index 0000000..c67ad33
--- /dev/null
+++ b/test/Transforms/InstCombine/invariant.ll
@@ -0,0 +1,16 @@
+; Test to make sure unused llvm.invariant.start calls are not trivially eliminated
+; RUN: opt < %s -instcombine -S | FileCheck %s
+
+declare void @g(i8*)
+
+declare { }* @llvm.invariant.start(i64, i8* nocapture) nounwind readonly
+
+define i8 @f() {
+  %a = alloca i8                                  ; <i8*> [#uses=4]
+  store i8 0, i8* %a
+  %i = call { }* @llvm.invariant.start(i64 1, i8* %a) ; <{ }*> [#uses=0]
+  ; CHECK: call { }* @llvm.invariant.start
+  call void @g(i8* %a)
+  %r = load i8* %a                                ; <i8> [#uses=1]
+  ret i8 %r
+}
-- 
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