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.

llvm-svn: 35974

1 files changed, 10 insertions, 0 deletions

diff --git a/llvm/test/Transforms/SCCP/apint-bigint.ll b/llvm/test/Transforms/SCCP/apint-bigint.ll
new file mode 100644
index 00000000000..163138c6c1b
--- /dev/null
+++ b/llvm/test/Transforms/SCCP/apint-bigint.ll
@@ -0,0 +1,10 @@
+; RUN:  llvm-as < %s | opt -sccp | llvm-dis -o /dev/null -f &&
+; RUN:  llvm-as < %s | opt -sccp | llvm-dis | not grep xor
+
+define i11129 @test1() {
+        %B = shl i11129 1, 11128 
+        %C = sub i11129 %B, 1
+        %D = xor i11129 %B, %C
+        
+	ret i11129 %D
+}