--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/Transforms/InstCombine/intptr3.ll	Fri Oct 27 17:07:41 2017 +0900
@@ -0,0 +1,39 @@
+; RUN: opt < %s  -instcombine -S | FileCheck %s
+
+define  void @test(float* %a, float* readnone %a_end, i64 %b) unnamed_addr  {
+entry:
+  %cmp1 = icmp ult float* %a, %a_end
+  br i1 %cmp1, label %for.body.preheader, label %for.end
+
+for.body.preheader:                               ; preds = %entry
+  %b.float = inttoptr i64 %b to float*
+  br label %for.body
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %a.addr.03 = phi float* [ %incdec.ptr, %for.body ], [ %a, %for.body.preheader ]
+  %b.addr.float = phi float* [ %b.addr.float.inc, %for.body ], [ %b.float, %for.body.preheader ]
+  %b.addr.i64 = phi i64 [ %b.addr.i64.inc, %for.body ], [ %b, %for.body.preheader ]
+; CHECK: %a.addr.03 = phi float* [ %incdec.ptr, %for.body ], [ %a, %for.body.preheader ]
+; CHECK-NEXT:  %b.addr.float = phi float* [ %b.addr.float.inc, %for.body ], [ %b.float, %for.body.preheader ]
+; CHECK-NEXT: = load float
+  %l = load float, float* %b.addr.float, align 4 
+  %mul.i = fmul float %l, 4.200000e+01
+  store float %mul.i, float* %a.addr.03, align 4
+; CHECK: store float
+  %b.addr.float.2 = inttoptr i64 %b.addr.i64 to float*
+; CHECK-NOT: inttoptr
+  %b.addr.float.inc = getelementptr inbounds float, float* %b.addr.float.2, i64 1
+; CHECK: %b.addr.float.inc = 
+  %b.addr.i64.inc = ptrtoint float* %b.addr.float.inc to i64
+; CHECK-NOT: ptrtoint
+  %incdec.ptr = getelementptr inbounds float, float* %a.addr.03, i64 1
+; CHECK: %incdec.ptr = 
+  %cmp = icmp ult float* %incdec.ptr, %a_end
+  br i1 %cmp, label %for.body, label %for.end
+
+for.end:                                          ; preds = %for.body, %entry
+  ret void
+}
+
+
+