New testcase, bug distilled from bc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8491 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/ScalarRepl/2003-09-12-IncorrectPromote.ll b/test/Transforms/ScalarRepl/2003-09-12-IncorrectPromote.ll
new file mode 100644 (file)
index 0000000..a8965b5
--- /dev/null
+++ b/test/Transforms/ScalarRepl/2003-09-12-IncorrectPromote.ll
@@ -0,0 +1,11 @@
+; Scalar replacement was incorrectly promoting this alloca!!
+;
+; RUN: llvm-as < %s | opt -scalarrepl | llvm-dis | sed 's/;.*//g' | grep '\['
+
+sbyte *%test() {
+       %A = alloca [30 x sbyte]
+       %B = getelementptr [30 x sbyte]* %A, long 0, long 0
+       %C = getelementptr sbyte* %B, long 1
+       store sbyte 0, sbyte* %B
+       ret sbyte* %C
+}