--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/CodeGen/X86/lsr-nonaffine.ll	Thu Dec 12 13:56:28 2013 +0900
@@ -0,0 +1,30 @@
+; RUN: llc -asm-verbose=false -march=x86-64 -mtriple=x86_64-apple-darwin -o - < %s | FileCheck %s
+
+; LSR should leave non-affine expressions alone because it currently
+; doesn't know how to do anything with them, and when it tries, it
+; gets SCEVExpander's current expansion for them, which is suboptimal.
+
+; CHECK:        xorl %eax, %eax
+; CHECK-NEXT:   align
+; CHECK-NEXT: BB0_1:
+; CHECK-NEXT:   movq  %rax, (%rdx)
+; CHECK-NEXT:   addq  %rsi, %rax
+; CHECK-NEXT:   cmpq  %rdi, %rax
+; CHECK-NEXT:   jl
+; CHECK-NEXT:   imulq %rax, %rax
+; CHECK-NEXT:   ret
+define i64 @foo(i64 %n, i64 %s, i64* %p) nounwind {
+entry:
+  br label %loop
+
+loop:
+  %i = phi i64 [ 0, %entry ], [ %i.next, %loop ]
+  store volatile i64 %i, i64* %p
+  %i.next = add i64 %i, %s
+  %c = icmp slt i64 %i.next, %n
+  br i1 %c, label %loop, label %exit
+
+exit:
+  %mul = mul i64 %i.next, %i.next
+  ret i64 %mul
+}