[llvm] r276002 - Add a testcase for r275581

[David Majnemer via llvm-commits]

Author: majnemer
Date: Tue Jul 19 12:52:41 2016
New Revision: 276002

URL: http://llvm.org/viewvc/llvm-project?rev=276002&view=rev
Log:
Add a testcase for r275581

Added:
    llvm/trunk/test/Transforms/Sink/fence.ll

Added: llvm/trunk/test/Transforms/Sink/fence.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/Sink/fence.ll?rev=276002&view=auto
==============================================================================
--- llvm/trunk/test/Transforms/Sink/fence.ll (added)
+++ llvm/trunk/test/Transforms/Sink/fence.ll Tue Jul 19 12:52:41 2016
@@ -0,0 +1,28 @@
+; RUN: opt -S -sink < %s | FileCheck %s
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+define void @test1(i32* ()*) {
+entry:
+  %1 = call i32* %0() #0
+  fence singlethread seq_cst
+  %2 = load i32, i32* %1, align 4
+  fence singlethread seq_cst
+  %3 = icmp eq i32 %2, 0
+  br i1 %3, label %fail, label %pass
+
+fail:                                             ; preds = %top
+  br label %pass
+
+pass:                                             ; preds = %fail, %top
+  ret void
+}
+
+; CHECK-LABEL: @test1(
+; CHECK:  %[[call:.*]] = call i32* %0()
+; CHECK:  fence singlethread seq_cst
+; CHECK:  load i32, i32* %[[call]], align 4
+; CHECK:  fence singlethread seq_cst
+
+
+attributes #0 = { nounwind readnone }