Prep for merging 3.4: Undo changes from 3.3 branch

test/Transforms/LoopVectorize/multiple-address-spaces.ll

-; RUN: opt < %s  -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 -dce -instcombine -S | FileCheck %s
-
-; From a simple program with two address spaces:
-; char Y[4*10000] __attribute__((address_space(1)));
-; char X[4*10000];
-; int main() {
-;    for (int i = 0; i < 4*10000; ++i)
-;        X[i] = Y[i] + 1;
-;    return 0;
-;}
-
-
-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-n8:16:32:64-S128"
-target triple = "x86_64-unknown-linux-gnu"
-
-@Y = common addrspace(1) global [40000 x i8] zeroinitializer, align 16
-@X = common global [40000 x i8] zeroinitializer, align 16
-
-;CHECK: @main
-;CHECK: bitcast i8 addrspace(1)* %{{.*}} to <4 x i8> addrspace(1)*
-;CHECK: bitcast i8* %{{.*}} to <4 x i8>*
-
-; Function Attrs: nounwind uwtable
-define i32 @main() #0 {
-entry:
-  br label %for.body
-
-for.body:                                         ; preds = %for.body, %entry
-  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
-  %arrayidx = getelementptr inbounds [40000 x i8] addrspace(1)* @Y, i64 0, i64 %indvars.iv
-  %0 = load i8 addrspace(1)* %arrayidx, align 1, !tbaa !0
-  %add = add i8 %0, 1
-  %arrayidx3 = getelementptr inbounds [40000 x i8]* @X, i64 0, i64 %indvars.iv
-  store i8 %add, i8* %arrayidx3, align 1, !tbaa !0
-  %indvars.iv.next = add i64 %indvars.iv, 1
-  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
-  %exitcond = icmp eq i32 %lftr.wideiv, 40000
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body
-  ret i32 0
-}
-
-attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
-
-!0 = metadata !{metadata !"omnipotent char", metadata !1}
-!1 = metadata !{metadata !"Simple C/C++ TBAA"}