1; RUN: opt < %s  -loop-vectorize -force-vector-width=2 -force-vector-interleave=2  -S | FileCheck %s
2
3define void @test1(float* noalias nocapture %a, float* noalias nocapture readonly %b) {
4; CHECK-LABEL: @test1(
5; CHECK:       vector.body:
6; CHECK:         [[WIDE_LOAD:%.*]] = load <2 x float>, <2 x float>* {{.*}}, align 4
7; CHECK:         [[WIDE_LOAD1:%.*]] = load <2 x float>, <2 x float>* {{.*}}, align 4
8; CHECK-NEXT:    [[TMP1:%.*]] = fcmp ogt <2 x float> [[WIDE_LOAD]], <float 1.000000e+02, float 1.000000e+02>
9; CHECK-NEXT:    [[TMP2:%.*]] = fcmp ogt <2 x float> [[WIDE_LOAD1]], <float 1.000000e+02, float 1.000000e+02>
10; CHECK-NEXT:    [[TMP3:%.*]] = extractelement <2 x i1> [[TMP1]], i32 0
11; CHECK-NEXT:    tail call void @llvm.assume(i1 [[TMP3]])
12; CHECK-NEXT:    [[TMP4:%.*]] = extractelement <2 x i1> [[TMP1]], i32 1
13; CHECK-NEXT:    tail call void @llvm.assume(i1 [[TMP4]])
14; CHECK-NEXT:    [[TMP5:%.*]] = extractelement <2 x i1> [[TMP2]], i32 0
15; CHECK-NEXT:    tail call void @llvm.assume(i1 [[TMP5]])
16; CHECK-NEXT:    [[TMP6:%.*]] = extractelement <2 x i1> [[TMP2]], i32 1
17; CHECK-NEXT:    tail call void @llvm.assume(i1 [[TMP6]])
18entry:
19  br label %for.body
20
21for.body:                                         ; preds = %for.body, %entry
22  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
23  %arrayidx = getelementptr inbounds float, float* %b, i64 %indvars.iv
24  %0 = load float, float* %arrayidx, align 4
25  %cmp1 = fcmp ogt float %0, 1.000000e+02
26  tail call void @llvm.assume(i1 %cmp1)
27  %add = fadd float %0, 1.000000e+00
28  %arrayidx5 = getelementptr inbounds float, float* %a, i64 %indvars.iv
29  store float %add, float* %arrayidx5, align 4
30  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
31  %exitcond = icmp eq i64 %indvars.iv, 1599
32  br i1 %exitcond, label %for.end, label %for.body
33
34for.end:                                          ; preds = %for.body
35  ret void
36}
37
38declare void @llvm.assume(i1) #0
39
40attributes #0 = { nounwind willreturn }
41
42%struct.data = type { float*, float* }
43
44define void @test2(%struct.data* nocapture readonly %d) {
45; CHECK-LABEL: @test2(
46; CHECK:       entry:
47; CHECK:         [[MASKCOND:%.*]] = icmp eq i64 %maskedptr, 0
48; CHECK:         [[MASKCOND4:%.*]] = icmp eq i64 %maskedptr3, 0
49; CHECK:       vector.body:
50; CHECK:         tail call void @llvm.assume(i1 [[MASKCOND]])
51; CHECK-NEXT:    tail call void @llvm.assume(i1 [[MASKCOND]])
52; CHECK:         tail call void @llvm.assume(i1 [[MASKCOND4]])
53; CHECK-NEXT:    tail call void @llvm.assume(i1 [[MASKCOND4]])
54; CHECK:       for.body:
55entry:
56  %b = getelementptr inbounds %struct.data, %struct.data* %d, i64 0, i32 1
57  %0 = load float*, float** %b, align 8
58  %ptrint = ptrtoint float* %0 to i64
59  %maskedptr = and i64 %ptrint, 31
60  %maskcond = icmp eq i64 %maskedptr, 0
61  %a = getelementptr inbounds %struct.data, %struct.data* %d, i64 0, i32 0
62  %1 = load float*, float** %a, align 8
63  %ptrint2 = ptrtoint float* %1 to i64
64  %maskedptr3 = and i64 %ptrint2, 31
65  %maskcond4 = icmp eq i64 %maskedptr3, 0
66  br label %for.body
67
68
69for.body:                                         ; preds = %for.body, %entry
70  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
71  tail call void @llvm.assume(i1 %maskcond)
72  %arrayidx = getelementptr inbounds float, float* %0, i64 %indvars.iv
73  %2 = load float, float* %arrayidx, align 4
74  %add = fadd float %2, 1.000000e+00
75  tail call void @llvm.assume(i1 %maskcond4)
76  %arrayidx5 = getelementptr inbounds float, float* %1, i64 %indvars.iv
77  store float %add, float* %arrayidx5, align 4
78  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
79  %exitcond = icmp eq i64 %indvars.iv, 1599
80  br i1 %exitcond, label %for.end, label %for.body
81
82for.end:                                          ; preds = %for.body
83  ret void
84}
85
86; Test case for PR43620. Make sure we can vectorize with predication in presence
87; of assume calls. For now, check that we drop all assumes in predicated blocks
88; in the vector body.
89define void @predicated_assume(float* noalias nocapture readonly %a, float* noalias nocapture %b, i32 %n) {
90; Check that the vector.body does not contain any assumes.
91; CHECK-LABEL: @predicated_assume(
92; CHECK:       vector.body:
93; CHECK-NOT:     llvm.assume
94; CHECK:       for.body:
95entry:
96  %cmp15 = icmp eq i32 %n, 0
97  br i1 %cmp15, label %for.cond.cleanup, label %for.body.preheader
98
99for.body.preheader:                               ; preds = %entry
100  %0 = zext i32 %n to i64
101  br label %for.body
102
103for.cond.cleanup.loopexit:                        ; preds = %if.end5
104  br label %for.cond.cleanup
105
106for.cond.cleanup:                                 ; preds = %for.cond.cleanup.loopexit, %entry
107  ret void
108
109for.body:                                         ; preds = %for.body.preheader, %if.end5
110  %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %if.end5 ]
111  %cmp1 = icmp ult i64 %indvars.iv, 495616
112  br i1 %cmp1, label %if.end5, label %if.else
113
114if.else:                                          ; preds = %for.body
115  %cmp2 = icmp ult i64 %indvars.iv, 991232
116  tail call void @llvm.assume(i1 %cmp2)
117  br label %if.end5
118
119if.end5:                                          ; preds = %for.body, %if.else
120  %x.0 = phi float [ 4.200000e+01, %if.else ], [ 2.300000e+01, %for.body ]
121  %arrayidx = getelementptr inbounds float, float* %a, i64 %indvars.iv
122  %1 = load float, float* %arrayidx, align 4
123  %mul = fmul float %x.0, %1
124  %arrayidx7 = getelementptr inbounds float, float* %b, i64 %indvars.iv
125  store float %mul, float* %arrayidx7, align 4
126  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
127  %cmp = icmp eq i64 %indvars.iv.next, %0
128  br i1 %cmp, label %for.cond.cleanup.loopexit, label %for.body
129}
130