From: Chris Lattner <sabre@nondot.org>
Date: Tue, 22 Apr 2008 06:35:14 +0000 (+0000)
Subject: add a basic testcase.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=f29984f695a16d68f6983c7741e1ae77d1619c5d;p=oota-llvm.git

add a basic testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50093 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/Transforms/JumpThreading/basic.ll b/test/Transforms/JumpThreading/basic.ll
new file mode 100644
index 00000000000..5d99a7c0bec
--- /dev/null
+++ b/test/Transforms/JumpThreading/basic.ll
@@ -0,0 +1,31 @@
+; RUN: llvm-as < %s | opt -jump-threading -simplifycfg -mem2reg | llvm-dis | grep {ret i32 %v1}
+; There should be no uncond branches left.
+; RUN: llvm-as < %s | opt -jump-threading -simplifycfg -mem2reg | llvm-dis | not grep {br label}
+
+declare i32 @f1()
+declare i32 @f2()
+declare void @f3()
+
+define i32 @test(i1 %cond) {
+	br i1 %cond, label %T1, label %F1
+
+T1:
+	%v1 = call i32 @f1()
+	br label %Merge
+
+F1:
+	%v2 = call i32 @f2()
+	br label %Merge
+
+Merge:
+	%A = phi i1 [true, %T1], [false, %F1]
+	%B = phi i32 [%v1, %T1], [%v2, %F1]
+	br i1 %A, label %T2, label %F2
+
+T2:
+	call void @f3()
+	ret i32 %B
+
+F2:
+	ret i32 %B
+}
diff --git a/test/Transforms/JumpThreading/dg.exp b/test/Transforms/JumpThreading/dg.exp
new file mode 100644
index 00000000000..de42dad163f
--- /dev/null
+++ b/test/Transforms/JumpThreading/dg.exp
@@ -0,0 +1,3 @@
+load_lib llvm.exp
+
+RunLLVMTests [lsort [glob -nocomplain $srcdir/$subdir/*.ll]]