1 ; RUN: opt < %s -loop-vectorize -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx -debug-only=loop-vectorize -stats -S 2>&1 | FileCheck %s
4 ; CHECK: LV: Loop hints: force=enabled
5 ; CHECK: LV: Loop hints: force=?
6 ; No more loops in the module
7 ; CHECK-NOT: LV: Loop hints: force=
8 ; CHECK: 2 loop-vectorize - Number of loops analyzed for vectorization
9 ; CHECK: 1 loop-vectorize - Number of loops vectorized
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-apple-macosx10.8.0"
15 ; The source code for the test:
18 ; void foo(float* restrict A, float * restrict B, int size)
20 ; for (int i = 0; i < size; ++i) A[i] = sinf(B[i]);
25 ; This loop will be vectorized, although the scalar cost is lower than any of vector costs, but vectorization is explicitly forced in metadata.
28 define void @vectorized(float* noalias nocapture %A, float* noalias nocapture %B, i32 %size) {
30 %cmp6 = icmp sgt i32 %size, 0
31 br i1 %cmp6, label %for.body.preheader, label %for.end
37 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ]
38 %arrayidx = getelementptr inbounds float* %B, i64 %indvars.iv
39 %0 = load float* %arrayidx, align 4, !llvm.mem.parallel_loop_access !1
40 %call = tail call float @llvm.sin.f32(float %0)
41 %arrayidx2 = getelementptr inbounds float* %A, i64 %indvars.iv
42 store float %call, float* %arrayidx2, align 4, !llvm.mem.parallel_loop_access !1
43 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
44 %lftr.wideiv = trunc i64 %indvars.iv.next to i32
45 %exitcond = icmp eq i32 %lftr.wideiv, %size
46 br i1 %exitcond, label %for.end.loopexit, label %for.body, !llvm.loop !1
55 !1 = metadata !{metadata !1, metadata !2}
56 !2 = metadata !{metadata !"llvm.loop.vectorize.enable", i1 true}
59 ; This method will not be vectorized, as scalar cost is lower than any of vector costs.
62 define void @not_vectorized(float* noalias nocapture %A, float* noalias nocapture %B, i32 %size) {
64 %cmp6 = icmp sgt i32 %size, 0
65 br i1 %cmp6, label %for.body.preheader, label %for.end
71 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ]
72 %arrayidx = getelementptr inbounds float* %B, i64 %indvars.iv
73 %0 = load float* %arrayidx, align 4, !llvm.mem.parallel_loop_access !3
74 %call = tail call float @llvm.sin.f32(float %0)
75 %arrayidx2 = getelementptr inbounds float* %A, i64 %indvars.iv
76 store float %call, float* %arrayidx2, align 4, !llvm.mem.parallel_loop_access !3
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, %size
80 br i1 %exitcond, label %for.end.loopexit, label %for.body, !llvm.loop !3
89 declare float @llvm.sin.f32(float) nounwind readnone
92 !3 = metadata !{metadata !3}