1 ; RUN: opt -mattr=+avx512f --loop-vectorize -S < %s | llc -mattr=+avx512f | FileCheck %s 2 3 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 4 target triple = "x86_64-apple-macosx10.9.0" 5 6 ; Verify that we generate 512-bit wide vectors for a basic integer memset 7 ; loop. 8 9 ; CHECK-LABEL: f: 10 ; CHECK: vmovdqu32 %zmm{{.}}, ( 11 ; CHECK-NOT: %ymm 12 13 define void @f(i32* %a, i32 %n) { 14 entry: 15 %cmp4 = icmp sgt i32 %n, 0 16 br i1 %cmp4, label %for.body.preheader, label %for.end 17 18 for.body.preheader: ; preds = %entry 19 br label %for.body 20 21 for.body: ; preds = %for.body.preheader, %for.body 22 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ] 23 %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv 24 store i32 %n, i32* %arrayidx, align 4 25 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 26 %lftr.wideiv = trunc i64 %indvars.iv.next to i32 27 %exitcond = icmp eq i32 %lftr.wideiv, %n 28 br i1 %exitcond, label %for.end.loopexit, label %for.body 29 30 for.end.loopexit: ; preds = %for.body 31 br label %for.end 32 33 for.end: ; preds = %for.end.loopexit, %entry 34 ret void 35 } 36
