1 ; RUN: opt < %s -mcpu=core-avx2 -passes=loop-vectorize -S | llc -mcpu=core-avx2 | FileCheck %s
3 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
4 target triple = "x86_64-apple-macosx"
6 @n = global i32 10000, align 4
7 @double_array = common global [10000 x double] zeroinitializer, align 16
8 @unsigned_array = common global [10000 x i32] zeroinitializer, align 16
10 ; If we need to scalarize the fptoui and then use inserts to build up the
11 ; vector again, then there is certainly no value in going 256-bit wide.
14 define void @convert() {
16 %0 = load i32, ptr @n, align 4
17 %cmp4 = icmp eq i32 %0, 0
18 br i1 %cmp4, label %for.end, label %for.body.preheader
20 for.body.preheader: ; preds = %entry
23 for.body: ; preds = %for.body.preheader, %for.body
24 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ]
25 %arrayidx = getelementptr inbounds [10000 x double], ptr @double_array, i64 0, i64 %indvars.iv
26 %1 = load double, ptr %arrayidx, align 8
27 %conv = fptoui double %1 to i32
28 %arrayidx2 = getelementptr inbounds [10000 x i32], ptr @unsigned_array, i64 0, i64 %indvars.iv
29 store i32 %conv, ptr %arrayidx2, align 4
30 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
31 %2 = trunc i64 %indvars.iv.next to i32
32 %cmp = icmp ult i32 %2, %0
33 br i1 %cmp, label %for.body, label %for.end.loopexit
35 for.end.loopexit: ; preds = %for.body
38 for.end: ; preds = %for.end.loopexit, %entry