Add the SCCP regression tests for APInt expressions. These test cases
turned up some regressions that have since been fixed. We don't want to
loose the regression tests.
Test cases by Guoling Han.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35974 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Transforms/SCCP/apint-array.ll b/test/Transforms/SCCP/apint-array.ll
new file mode 100644
index 0000000..b9fe68c
--- /dev/null
+++ b/test/Transforms/SCCP/apint-array.ll
@@ -0,0 +1,23 @@
+; RUN: llvm-as < %s | opt -sccp | llvm-dis | grep 'ret i101 12'
+
+@Y = constant [6 x i101] [ i101 12, i101 123456789000000, i101 -12,i101
+-123456789000000, i101 0,i101 9123456789000000]
+
+define i101 @array()
+{
+Head:
+ %A = getelementptr [6 x i101]* @Y, i32 0, i32 1
+
+ %B = load i101* %A
+ %C = icmp sge i101 %B, 1
+ br i1 %C, label %True, label %False
+True:
+ %D = and i101 %B, 1
+ %E = trunc i101 %D to i32
+ %F = getelementptr [6 x i101]* @Y, i32 0, i32 %E
+ %G = load i101* %F
+ br label %False
+False:
+ %H = phi i101 [%G, %True], [-1, %Head]
+ ret i101 %H
+}