1 files changed, 56 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/intptr5.ll b/llvm/test/Transforms/InstCombine/intptr5.ll
new file mode 100644
index 00000000000..c5e728f1441
--- /dev/null
+++ b/llvm/test/Transforms/InstCombine/intptr5.ll
@@ -0,0 +1,56 @@
+; RUN: opt < %s  -instcombine -S | FileCheck %s
+
+define  void @test(float* %a, float* readnone %a_end, i64 %b, float* %bf) unnamed_addr  {
+entry:
+  %cmp1 = icmp ult float* %a, %a_end
+  %b.float = inttoptr i64 %b to float*
+  br i1 %cmp1, label %bb1, label %bb2
+
+bb1:
+ br label %for.body.preheader
+bb2:
+ %bfi = ptrtoint float* %bf to i64
+ br label %for.body.preheader
+
+for.body.preheader:                               ; preds = %entry
+  %b.phi = phi i64 [%b, %bb1], [%bfi, %bb2]
+  switch i64 %b, label %for.body [
+    i64 1, label %for.body
+  ]
+; CHECK: for.body.preheader
+; CHECK: %b.phi = phi
+; CHECK: %b.phi.ptr =
+; CHECK-NOT: %b.phi.ptr2 =
+; CHECK: switch
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+; CHECK: for.body
+  %a.addr.03 = phi float* [ %incdec.ptr, %for.body ], [ %a, %for.body.preheader ], [%a, %for.body.preheader]
+  %b.addr.float = phi float* [ %b.addr.float.inc, %for.body ], [ %b.float, %for.body.preheader ], [%b.float, %for.body.preheader]
+  %b.addr.i64 = phi i64 [ %b.addr.i64.inc, %for.body ], [ %b.phi, %for.body.preheader ], [ %b.phi, %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: %b.addr.i64.ptr = phi 
+; CHECK-NOT: = %b.addr.i64
+; CHECK: = load
+  %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
+  %b.addr.float.2 = inttoptr i64 %b.addr.i64 to float*
+  %b.addr.float.inc = getelementptr inbounds float, float* %b.addr.float.2, i64 1
+; CHECK: store float %mul.i
+; CHECK-NOT: inttoptr
+; 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
+}
+
+
+