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

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
; RUN: opt < %s -passes=loop-vectorize,dce,instcombine -force-vector-interleave=1 -force-vector-width=4 -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"

@Y = common addrspace(1) global [40000 x i8] zeroinitializer, align 16
@X = common global [40000 x i8] zeroinitializer, align 16

define i32 @main() #0 {
; CHECK-LABEL: define i32 @main
; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
; CHECK-NEXT:  entry:
; CHECK-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK:       vector.ph:
; CHECK-NEXT:    br label [[VECTOR_BODY:%.*]]
; CHECK:       vector.body:
; CHECK-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT:    [[TMP0:%.*]] = getelementptr inbounds [40000 x i8], ptr addrspace(1) @Y, i64 0, i64 [[INDEX]]
; CHECK-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i8>, ptr addrspace(1) [[TMP0]], align 1
; CHECK-NEXT:    [[TMP1:%.*]] = add <4 x i8> [[WIDE_LOAD]], splat (i8 1)
; CHECK-NEXT:    [[TMP2:%.*]] = getelementptr inbounds [40000 x i8], ptr @X, i64 0, i64 [[INDEX]]
; CHECK-NEXT:    store <4 x i8> [[TMP1]], ptr [[TMP2]], align 1
; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-NEXT:    [[TMP3:%.*]] = icmp eq i64 [[INDEX_NEXT]], 40000
; CHECK-NEXT:    br i1 [[TMP3]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK:       middle.block:
; CHECK-NEXT:    br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]]
; CHECK:       scalar.ph:
; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
; CHECK:       for.body:
; CHECK-NEXT:    br i1 poison, label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
; CHECK:       for.end:
; CHECK-NEXT:    ret i32 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], ptr addrspace(1) @Y, i64 0, i64 %indvars.iv
  %0 = load i8, ptr addrspace(1) %arrayidx, align 1
  %add = add i8 %0, 1
  %arrayidx3 = getelementptr inbounds [40000 x i8], ptr @X, i64 0, i64 %indvars.iv
  store i8 %add, ptr %arrayidx3, align 1
  %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" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }