1 ; RUN: opt -basicaa -loop-vectorize -enable-mem-access-versioning -force-vector-width=2 -force-vector-unroll=1 < %s -S | FileCheck %s 2 3 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 4 5 ; CHECK-LABEL: test 6 define void @test(i32* noalias %A, i64 %AStride, 7 i32* noalias %B, i32 %BStride, 8 i32* noalias %C, i64 %CStride, i32 %N) { 9 entry: 10 %cmp13 = icmp eq i32 %N, 0 11 br i1 %cmp13, label %for.end, label %for.body.preheader 12 13 ; CHECK-DAG: icmp ne i64 %AStride, 1 14 ; CHECK-DAG: icmp ne i32 %BStride, 1 15 ; CHECK-DAG: icmp ne i64 %CStride, 1 16 ; CHECK: or 17 ; CHECK: or 18 ; CHECK: br 19 20 ; CHECK: vector.body 21 ; CHECK: load <2 x i32> 22 23 for.body.preheader: 24 br label %for.body 25 26 for.body: 27 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ] 28 %iv.trunc = trunc i64 %indvars.iv to i32 29 %mul = mul i32 %iv.trunc, %BStride 30 %mul64 = zext i32 %mul to i64 31 %arrayidx = getelementptr inbounds i32* %B, i64 %mul64 32 %0 = load i32* %arrayidx, align 4 33 %mul2 = mul nsw i64 %indvars.iv, %CStride 34 %arrayidx3 = getelementptr inbounds i32* %C, i64 %mul2 35 %1 = load i32* %arrayidx3, align 4 36 %mul4 = mul nsw i32 %1, %0 37 %mul3 = mul nsw i64 %indvars.iv, %AStride 38 %arrayidx7 = getelementptr inbounds i32* %A, i64 %mul3 39 store i32 %mul4, i32* %arrayidx7, align 4 40 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 41 %lftr.wideiv = trunc i64 %indvars.iv.next to i32 42 %exitcond = icmp eq i32 %lftr.wideiv, %N 43 br i1 %exitcond, label %for.end.loopexit, label %for.body 44 45 for.end.loopexit: 46 br label %for.end 47 48 for.end: 49 ret void 50 } 51 52 ; We used to crash on this function because we removed the fptosi cast when 53 ; replacing the symbolic stride '%conv'. 54 ; PR18480 55 56 ; CHECK-LABEL: fn1 57 ; CHECK: load <2 x double> 58 59 define void @fn1(double* noalias %x, double* noalias %c, double %a) { 60 entry: 61 %conv = fptosi double %a to i32 62 %cmp8 = icmp sgt i32 %conv, 0 63 br i1 %cmp8, label %for.body.preheader, label %for.end 64 65 for.body.preheader: 66 br label %for.body 67 68 for.body: 69 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ] 70 %0 = trunc i64 %indvars.iv to i32 71 %mul = mul nsw i32 %0, %conv 72 %idxprom = sext i32 %mul to i64 73 %arrayidx = getelementptr inbounds double* %x, i64 %idxprom 74 %1 = load double* %arrayidx, align 8 75 %arrayidx3 = getelementptr inbounds double* %c, i64 %indvars.iv 76 store double %1, double* %arrayidx3, align 8 77 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 78 %lftr.wideiv = trunc i64 %indvars.iv.next to i32 79 %exitcond = icmp eq i32 %lftr.wideiv, %conv 80 br i1 %exitcond, label %for.end.loopexit, label %for.body 81 82 for.end.loopexit: 83 br label %for.end 84 85 for.end: 86 ret void 87 } 88
