1; RUN: opt -S -passes=loop-vectorize -force-vector-width=4 -force-vector-interleave=1 < %s 2>&1 | FileCheck %s
2
3target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
4@b = common local_unnamed_addr global i8 0, align 1
5
6define void @doit1(i32* %ptr) {
7; CHECK-LABEL: @doit1(
8; CHECK:       vector.body:
9; CHECK-NEXT:    [[MAIN_IV:%.*]] = phi i32 [ 0, [[VECTOR_PH:%.*]] ], [ [[MAIN_IV_NEXT:%.*]], [[VECTOR_BODY:%.*]] ]
10; CHECK-NEXT:    [[I8_IV:%.*]] = phi <4 x i8> [ zeroinitializer, [[VECTOR_PH]] ], [ [[I8_IV_NEXT:%.*]], [[VECTOR_BODY]] ]
11; CHECK-NEXT:    [[I32_IV:%.*]] = phi <4 x i32> [ <i32 0, i32 9, i32 18, i32 27>, [[VECTOR_PH]] ], [ [[I32_IV_NEXT:%.*]], [[VECTOR_BODY]] ]
12; CHECK-NEXT:    [[IV_FROM_TRUNC:%.*]] = phi <4 x i8> [ <i8 0, i8 9, i8 18, i8 27>, [[VECTOR_PH]] ], [ [[IV_FROM_TRUNC_NEXT:%.*]], [[VECTOR_BODY]] ]
13
14; CHECK-NEXT:    [[TMP7:%.*]] = add i32 [[MAIN_IV]], 0
15
16; CHECK-NEXT:    [[I8_IV_NEXT]] = add <4 x i8> [[I8_IV]], [[IV_FROM_TRUNC]]
17
18; CHECK-NEXT:    [[GEP1:%.+]] = getelementptr inbounds i32, i32* %ptr, i32 [[TMP7]]
19; CHECK-NEXT:    [[GEP2:%.+]] = getelementptr inbounds i32, i32* [[GEP1]], i32 0
20; CHECK-NEXT:    [[GEP_BC:%.+]] = bitcast i32* [[GEP2]] to <4 x i32>*
21; CHECK-NEXT:    store <4 x i32> [[I32_IV]], <4 x i32>* [[GEP_BC]], align 4
22
23; CHECK-NEXT:    [[MAIN_IV_NEXT]] = add nuw i32 [[MAIN_IV]], 4
24; CHECK-NEXT:    [[I32_IV_NEXT]] = add <4 x i32> [[I32_IV]], <i32 36, i32 36, i32 36, i32 36>
25; CHECK-NEXT:    [[IV_FROM_TRUNC_NEXT]] = add <4 x i8> [[IV_FROM_TRUNC]], <i8 36, i8 36, i8 36, i8 36>
26; CHECK-NEXT:    [[TMP9:%.*]] = icmp eq i32 [[MAIN_IV_NEXT]], 16
27; CHECK-NEXT:    br i1 [[TMP9]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop !0
28;
29entry:
30  br label %for.body
31
32for.body:
33  %main.iv = phi i32 [ 0, %entry ], [ %inc, %for.body ]
34
35  %i8.iv = phi i8 [ 0, %entry ], [ %i8.add, %for.body ]
36  %i32.iv = phi i32 [ 0, %entry ], [ %i32.add, %for.body ]
37
38  %trunc.to.be.converted.to.new.iv = trunc i32 %i32.iv to i8
39  %i8.add = add i8 %i8.iv, %trunc.to.be.converted.to.new.iv
40
41  %ptr.gep = getelementptr inbounds i32, i32* %ptr, i32 %main.iv
42  store i32 %i32.iv, i32* %ptr.gep
43  %noop.conv.under.pse = and i32 %i32.iv, 255
44  %i32.add = add nuw nsw i32 %noop.conv.under.pse, 9
45
46  %inc = add i32 %main.iv, 1
47  %tobool = icmp eq i32 %inc, 16
48  br i1 %tobool, label %for.cond.for.end_crit_edge, label %for.body
49
50for.cond.for.end_crit_edge:
51  store i8 %i8.add, i8* @b, align 1
52  br label %for.end
53
54for.end:
55  ret void
56}
57