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
+}
\ No newline at end of file
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