1 ; RUN: opt < %s -loop-vectorize -force-vector-unroll=4 -force-vector-width=4 -debug-only=loop-vectorize -stats -S 2>&1 | FileCheck %s 2 ; REQUIRES: asserts 3 4 ; 5 ; We have 2 loops, one of them is vectorizable and the second one is not. 6 ; 7 8 ; CHECK: 2 loop-vectorize - Number of loops analyzed for vectorization 9 ; CHECK: 1 loop-vectorize - Number of loops vectorized 10 11 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" 12 target triple = "x86_64-unknown-linux-gnu" 13 14 define void @vectorized(float* nocapture %a, i64 %size) { 15 entry: 16 %cmp1 = icmp sgt i64 %size, 0 17 br i1 %cmp1, label %for.header, label %for.end 18 19 for.header: 20 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ] 21 %cmp2 = icmp sgt i64 %indvars.iv, %size 22 br i1 %cmp2, label %for.end, label %for.body 23 24 for.body: 25 26 %arrayidx = getelementptr inbounds float* %a, i64 %indvars.iv 27 %0 = load float* %arrayidx, align 4 28 %mul = fmul float %0, %0 29 store float %mul, float* %arrayidx, align 4 30 31 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 32 br label %for.header 33 34 for.end: 35 ret void 36 } 37 38 define void @not_vectorized(float* nocapture %a, i64 %size) { 39 entry: 40 %cmp1 = icmp sgt i64 %size, 0 41 br i1 %cmp1, label %for.header, label %for.end 42 43 for.header: 44 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ] 45 %cmp2 = icmp sgt i64 %indvars.iv, %size 46 br i1 %cmp2, label %for.end, label %for.body 47 48 for.body: 49 50 %0 = add nsw i64 %indvars.iv, -5 51 %arrayidx = getelementptr inbounds float* %a, i64 %0 52 %1 = load float* %arrayidx, align 4 53 %2 = add nsw i64 %indvars.iv, 2 54 %arrayidx2 = getelementptr inbounds float* %a, i64 %2 55 %3 = load float* %arrayidx2, align 4 56 %mul = fmul float %1, %3 57 %arrayidx4 = getelementptr inbounds float* %a, i64 %indvars.iv 58 store float %mul, float* %arrayidx4, align 4 59 60 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 61 br label %for.header 62 63 for.end: 64 ret void 65 }
