2 ; RUN: opt < %s -loop-vectorize -force-vector-width=2 -force-vector-interleave=1 -instcombine -debug-only=loop-vectorize -disable-output -print-after=instcombine 2>&1 | FileCheck %s
4 target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
6 ; CHECK-LABEL: phi_two_incoming_values
7 ; CHECK: LV: Found an estimated cost of 1 for VF 2 For instruction: %i = phi i64 [ %i.next, %if.end ], [ 0, %entry ]
8 ; CHECK: LV: Found an estimated cost of 1 for VF 2 For instruction: %tmp5 = phi i32 [ %tmp1, %for.body ], [ %tmp4, %if.then ]
10 ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
11 ; CHECK: [[WIDE_LOAD:%.*]] = load <2 x i32>, <2 x i32>* {{.*}}
12 ; CHECK: [[TMP5:%.*]] = icmp sgt <2 x i32> [[WIDE_LOAD]], zeroinitializer
13 ; CHECK-NEXT: [[TMP6:%.*]] = zext <2 x i1> [[TMP5]] to <2 x i32>
14 ; CHECK-NEXT: [[PREDPHI:%.*]] = add <2 x i32> [[WIDE_LOAD]], [[TMP6]]
15 ; CHECK: store <2 x i32> [[PREDPHI]], <2 x i32>* {{.*}}
16 ; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 2
18 define void @phi_two_incoming_values(i32* %a, i32* %b, i64 %n) {
23 %i = phi i64 [ %i.next, %if.end ], [ 0, %entry ]
24 %tmp0 = getelementptr inbounds i32, i32* %a, i64 %i
25 %tmp1 = load i32, i32* %tmp0, align 4
26 %tmp2 = getelementptr inbounds i32, i32* %b, i64 %i
27 %tmp3 = icmp sgt i32 %tmp1, 0
28 br i1 %tmp3, label %if.then, label %if.end
31 %tmp4 = add i32 %tmp1, 1
35 %tmp5 = phi i32 [ %tmp1, %for.body ], [ %tmp4, %if.then ]
36 store i32 %tmp5, i32* %tmp2, align 4
37 %i.next = add i64 %i, 1
38 %cond = icmp eq i64 %i, %n
39 br i1 %cond, label %for.end, label %for.body
45 ; CHECK-LABEL: phi_three_incoming_values
46 ; CHECK: LV: Found an estimated cost of 1 for VF 2 For instruction: %i = phi i64 [ %i.next, %if.end ], [ 0, %entry ]
47 ; CHECK: LV: Found an estimated cost of 2 for VF 2 For instruction: %tmp8 = phi i32 [ 9, %for.body ], [ 3, %if.then ], [ %tmp7, %if.else ]
49 ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
50 ; CHECK: [[PREDPHI:%.*]] = select <2 x i1> {{.*}}, <2 x i32> <i32 3, i32 3>, <2 x i32> <i32 9, i32 9>
51 ; CHECK: [[PREDPHI7:%.*]] = select <2 x i1> {{.*}}, <2 x i32> {{.*}}, <2 x i32> [[PREDPHI]]
52 ; CHECK: store <2 x i32> [[PREDPHI7]], <2 x i32>* {{.*}}
53 ; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 2
55 define void @phi_three_incoming_values(i32* %a, i32* %b, i64 %n) {
60 %i = phi i64 [ %i.next, %if.end ], [ 0, %entry ]
61 %tmp0 = getelementptr inbounds i32, i32* %a, i64 %i
62 %tmp1 = load i32, i32* %tmp0, align 4
63 %tmp2 = getelementptr inbounds i32, i32* %b, i64 %i
64 %tmp3 = load i32, i32* %tmp2, align 4
65 %tmp4 = icmp sgt i32 %tmp1, %tmp3
66 br i1 %tmp4, label %if.then, label %if.end
69 %tmp5 = icmp sgt i32 %tmp1, 19
70 br i1 %tmp5, label %if.end, label %if.else
73 %tmp6 = icmp slt i32 %tmp3, 4
74 %tmp7 = select i1 %tmp6, i32 4, i32 5
78 %tmp8 = phi i32 [ 9, %for.body ], [ 3, %if.then ], [ %tmp7, %if.else ]
79 store i32 %tmp8, i32* %tmp0, align 4
80 %i.next = add i64 %i, 1
81 %cond = icmp eq i64 %i, %n
82 br i1 %cond, label %for.end, label %for.body