new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26726 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/PowerPC/and_add.ll b/test/CodeGen/PowerPC/and_add.ll
new file mode 100644 (file)
index 0000000..c2293c2
--- /dev/null
+++ b/test/CodeGen/PowerPC/and_add.ll
@@ -0,0 +1,11 @@
+; RUN: llvm-as < %s | llc -march=ppc32 | grep slwi &&
+; RUN: llvm-as < %s | llc -march=ppc32 | not grep addi &&
+; RUN: llvm-as < %s | llc -march=ppc32 | not grep rlwinm
+
+int %test(int %A) {
+  %B = mul int %A, 8  ;; shift
+  %C = add int %B, 7  ;; dead, no demanded bits.
+  %D = and int %C, -8 ;; dead once add is gone.
+  ret int %D
+}
+