--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/llvm/test/Transforms/CodeGenPrepare/X86/nonintegral.ll	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,68 @@
+; RUN: opt -S -codegenprepare < %s | FileCheck %s
+; RUN: opt -S -codegenprepare -addr-sink-using-gep=false < %s | FileCheck %s
+
+; This target data layout is modified to have a non-integral addrspace(1),
+; in order to verify that codegenprepare does not try to introduce illegal
+; inttoptrs.
+target datalayout =
+"e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-ni:1"
+target triple = "x86_64-unknown-linux-gnu"
+
+define void @test_simple(i1 %cond, i64 addrspace(1)* %base) {
+; CHECK-LABEL: @test_simple
+; CHECK-NOT: inttoptr {{.*}} to i64 addrspace(1)*
+entry:
+  %addr = getelementptr inbounds i64, i64 addrspace(1)* %base, i64 5
+  %casted = bitcast i64 addrspace(1)* %addr to i32 addrspace(1)*
+  br i1 %cond, label %if.then, label %fallthrough
+
+if.then:
+  %v = load i32, i32 addrspace(1)* %casted, align 4
+  br label %fallthrough
+
+fallthrough:
+  ret void
+}
+
+
+define void @test_inttoptr_base(i1 %cond, i64 %base) {
+; CHECK-LABEL: @test_inttoptr_base
+; CHECK-NOT: inttoptr {{.*}} to i64 addrspace(1)*
+entry:
+; Doing the inttoptr in the integral addrspace(0) followed by an explicit
+; (frontend-introduced) addrspacecast is fine. We cannot however introduce
+; a direct inttoptr to addrspace(1)
+  %baseptr = inttoptr i64 %base to i64*
+  %baseptrni = addrspacecast i64 *%baseptr to i64 addrspace(1)*
+  %addr = getelementptr inbounds i64, i64 addrspace(1)* %baseptrni, i64 5
+  %casted = bitcast i64 addrspace(1)* %addr to i32 addrspace(1)*
+  br i1 %cond, label %if.then, label %fallthrough
+
+if.then:
+  %v = load i32, i32 addrspace(1)* %casted, align 4
+  br label %fallthrough
+
+fallthrough:
+  ret void
+}
+
+define void @test_ptrtoint_base(i1 %cond, i64 addrspace(1)* %base) {
+; CHECK-LABEL: @test_ptrtoint_base
+; CHECK-NOT: ptrtoint addrspace(1)* {{.*}} to i64
+entry:
+; This one is inserted by the frontend, so it's fine. We're not allowed to
+; directly ptrtoint %base ourselves though
+  %baseptr0 = addrspacecast i64 addrspace(1)* %base to i64*
+  %toint = ptrtoint i64* %baseptr0 to i64
+  %added = add i64 %toint, 8
+  %toptr = inttoptr i64 %added to i64*
+  %geped = getelementptr i64, i64* %toptr, i64 2
+  br i1 %cond, label %if.then, label %fallthrough
+
+if.then:
+  %v = load i64, i64* %geped, align 4
+  br label %fallthrough
+
+fallthrough:
+  ret void
+}