From: Chris Lattner <sabre@nondot.org>
Date: Mon, 29 Apr 2002 22:24:24 +0000 (+0000)
Subject: New test cases for mul folding
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=efc01f62c6608e7bd5a4337df1c65b20d036eab3;p=oota-llvm.git

New test cases for mul folding


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2416 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/Transforms/InstCombine/mul.ll b/test/Transforms/InstCombine/mul.ll
new file mode 100644
index 00000000000..077184cac2b
--- /dev/null
+++ b/test/Transforms/InstCombine/mul.ll
@@ -0,0 +1,28 @@
+; This test makes sure that mul instructions are properly eliminated.
+;
+
+; RUN: if as < %s | opt -instcombine -dce | dis | grep mul
+; RUN: then exit 1
+; RUN: else exit 0
+; RUN: fi
+
+implementation
+
+int "test1"(int %A)
+begin
+	%B = mul int %A, 1
+	ret int %B
+end
+
+int "test2"(int %A)
+begin
+	%B = mul int %A, 2   ; Should convert to an add instruction
+	ret int %B
+end
+
+int "test3"(int %A)
+begin
+	%B = mul int %A, 0   ; This should disappear entirely
+	ret int %B
+end
+