1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
; RUN: opt < %s -loop-vectorize -mtriple x86_64 -S | FileCheck %s
%struct.ST4 = type { i32, i32, i32, i32 }
; The gaps between the memory access in this function are too large for
; interleaving.
; Test from https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7560
define void @test1(%struct.ST4* noalias %B) {
; CHECK-LABEL: @test1
; CHECK-NEXT: entry:
; CHECK-NEXT: br label %for.body
; CHECK-LABEL: for.body:
; CHECK: store i32
; CHECK: store i32
; CHECK: store i32
; CHECK: store i32
; CHECK-NOT: store
;
entry:
br label %for.body
for.body: ; preds = %for.body, %entry
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%p1 = getelementptr inbounds %struct.ST4, %struct.ST4* %B, i64 %indvars.iv, i32 0
store i32 65536, i32* %p1, align 4
%p2 = getelementptr i32, i32* %p1, i32 -2147483648
store i32 65536, i32* %p2, align 4
%p3 = getelementptr inbounds %struct.ST4, %struct.ST4* %B, i64 %indvars.iv, i32 2
store i32 10, i32* %p3, align 4
%p4 = getelementptr inbounds %struct.ST4, %struct.ST4* %B, i64 %indvars.iv, i32 3
store i32 12, i32* %p4, align 4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond = icmp eq i64 %indvars.iv.next, 1024
br i1 %exitcond, label %for.cond.cleanup, label %for.body
for.cond.cleanup: ; preds = %for.body
ret void
}
|
