[llvm-commits] [llvm] r45386 - /llvm/trunk/test/Transforms/InstCombine/2007-12-28-IcmpSub2.ll

[Owen Anderson]

Author: resistor
Date: Fri Dec 28 15:08:43 2007
New Revision: 45386

URL: http://llvm.org/viewvc/llvm-project?rev=45386&view=rev
Log:
Add a testcase for my recent InstCombine fix, written by Nicholas.

Added:
    llvm/trunk/test/Transforms/InstCombine/2007-12-28-IcmpSub2.ll

Added: llvm/trunk/test/Transforms/InstCombine/2007-12-28-IcmpSub2.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/InstCombine/2007-12-28-IcmpSub2.ll?rev=45386&view=auto

==============================================================================
--- llvm/trunk/test/Transforms/InstCombine/2007-12-28-IcmpSub2.ll (added)
+++ llvm/trunk/test/Transforms/InstCombine/2007-12-28-IcmpSub2.ll Fri Dec 28 15:08:43 2007
@@ -0,0 +1,89 @@
+; RUN: llvm-as < %s | opt -mem2reg -instcombine | llvm-dis | grep "ret i32 1" | count 8
+
+define i32 @test1() {
+entry:
+	%z = alloca i32
+	store i32 0, i32* %z
+	%tmp = load i32* %z
+	%sub = sub i32 %tmp, 1
+	%cmp = icmp ule i32 %sub, 0
+	%retval = select i1 %cmp, i32 0, i32 1
+	ret i32 %retval
+}
+
+define i32 @test2() {
+entry:
+	%z = alloca i32
+	store i32 0, i32* %z
+	%tmp = load i32* %z
+	%sub = sub i32 %tmp, 1
+	%cmp = icmp ugt i32 %sub, 0
+	%retval = select i1 %cmp, i32 1, i32 0
+	ret i32 %retval
+}
+
+define i32 @test3() {
+entry:
+	%z = alloca i32
+	store i32 0, i32* %z
+	%tmp = load i32* %z
+	%sub = sub i32 %tmp, 1
+	%cmp = icmp slt i32 %sub, 0
+	%retval = select i1 %cmp, i32 1, i32 0
+	ret i32 %retval
+}
+
+define i32 @test4() {
+entry:
+	%z = alloca i32
+	store i32 0, i32* %z
+	%tmp = load i32* %z
+	%sub = sub i32 %tmp, 1
+	%cmp = icmp sle i32 %sub, 0
+	%retval = select i1 %cmp, i32 1, i32 0
+	ret i32 %retval
+}
+
+define i32 @test5() {
+entry:
+	%z = alloca i32
+	store i32 0, i32* %z
+	%tmp = load i32* %z
+	%sub = sub i32 %tmp, 1
+	%cmp = icmp sge i32 %sub, 0
+	%retval = select i1 %cmp, i32 0, i32 1
+	ret i32 %retval
+}
+
+define i32 @test6() {
+entry:
+	%z = alloca i32
+	store i32 0, i32* %z
+	%tmp = load i32* %z
+	%sub = sub i32 %tmp, 1
+	%cmp = icmp sgt i32 %sub, 0
+	%retval = select i1 %cmp, i32 0, i32 1
+	ret i32 %retval
+}
+
+define i32 @test7() {
+entry:
+	%z = alloca i32
+	store i32 0, i32* %z
+	%tmp = load i32* %z
+	%sub = sub i32 %tmp, 1
+	%cmp = icmp eq i32 %sub, 0
+	%retval = select i1 %cmp, i32 0, i32 1
+	ret i32 %retval
+}
+
+define i32 @test8() {
+entry:
+	%z = alloca i32
+	store i32 0, i32* %z
+	%tmp = load i32* %z
+	%sub = sub i32 %tmp, 1
+	%cmp = icmp ne i32 %sub, 0
+	%retval = select i1 %cmp, i32 1, i32 0
+	ret i32 %retval
+}
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