1 ; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -instcombine -S | FileCheck %s
3 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"
5 %struct.coordinate = type { i32, i32 }
7 ; Make sure that we don't generate a wide load when accessing the struct.
14 ; int foo(struct coordinate *A, int n) {
17 ; for (int i = 0; i < n; ++i)
24 ;CHECK-NOT: load <4 x i32>
26 define i32 @foo(%struct.coordinate* nocapture %A, i32 %n) nounwind uwtable readonly ssp {
28 %cmp4 = icmp sgt i32 %n, 0
29 br i1 %cmp4, label %for.body, label %for.end
31 for.body: ; preds = %entry, %for.body
32 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
33 %sum.05 = phi i32 [ %add, %for.body ], [ 0, %entry ]
34 %x = getelementptr inbounds %struct.coordinate, %struct.coordinate* %A, i64 %indvars.iv, i32 0
35 %0 = load i32, i32* %x, align 4
36 %add = add nsw i32 %0, %sum.05
37 %indvars.iv.next = add i64 %indvars.iv, 1
38 %lftr.wideiv = trunc i64 %indvars.iv.next to i32
39 %exitcond = icmp eq i32 %lftr.wideiv, %n
40 br i1 %exitcond, label %for.end, label %for.body
42 for.end: ; preds = %for.body, %entry
43 %sum.0.lcssa = phi i32 [ 0, %entry ], [ %add, %for.body ]
47 %struct.lit = type { i32 }
49 ; Verify that we still vectorize the access if the struct has the same size as
56 ; int bar(struct lit *A, int n) {
59 ; for (int i = 0; i < n; ++i)
66 ;CHECK: load <4 x i32>
68 define i32 @bar(%struct.lit* nocapture %A, i32 %n) nounwind uwtable readonly ssp {
70 %cmp4 = icmp sgt i32 %n, 0
71 br i1 %cmp4, label %for.body, label %for.end
73 for.body: ; preds = %entry, %for.body
74 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
75 %sum.05 = phi i32 [ %add, %for.body ], [ 0, %entry ]
76 %x = getelementptr inbounds %struct.lit, %struct.lit* %A, i64 %indvars.iv, i32 0
77 %0 = load i32, i32* %x, align 4
78 %add = add nsw i32 %0, %sum.05
79 %indvars.iv.next = add i64 %indvars.iv, 1
80 %lftr.wideiv = trunc i64 %indvars.iv.next to i32
81 %exitcond = icmp eq i32 %lftr.wideiv, %n
82 br i1 %exitcond, label %for.end, label %for.body
84 for.end: ; preds = %for.body, %entry
85 %sum.0.lcssa = phi i32 [ 0, %entry ], [ %add, %for.body ]