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
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
; RUN: opt -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S < %s | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
; Function Attrs: norecurse nounwind uwtable
define void @Test(ptr nocapture %res, ptr nocapture readnone %c, ptr nocapture readonly %d, ptr nocapture readonly %p) #0 {
entry:
br label %for.body
; CHECK-LABEL: @Test
; CHECK: load i32, ptr {{.*}}, align 4, !llvm.access.group !0
; CHECK: load i32, ptr {{.*}}, align 4, !llvm.access.group !0
; CHECK: store i32 {{.*}}, align 4, !llvm.access.group !0
; CHECK-NOT: load
; CHECK-NOT: store
for.body: ; preds = %cond.end, %entry
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %cond.end ]
%arrayidx = getelementptr inbounds i32, ptr %p, i64 %indvars.iv
%0 = load i32, ptr %arrayidx, align 4, !llvm.access.group !10
%cmp1 = icmp eq i32 %0, 0
br i1 %cmp1, label %cond.true, label %cond.false
cond.false: ; preds = %for.body
%arrayidx3 = getelementptr inbounds i32, ptr %res, i64 %indvars.iv
%v = load i32, ptr %arrayidx3, align 4, !llvm.access.group !10
%arrayidx7 = getelementptr inbounds i32, ptr %d, i64 %indvars.iv
%1 = load i32, ptr %arrayidx7, align 4, !llvm.access.group !10
%add = add nsw i32 %1, %v
br label %cond.end
cond.true: ; preds = %for.body
%arrayidx4 = getelementptr inbounds i32, ptr %res, i64 %indvars.iv
%w = load i32, ptr %arrayidx4, align 4, !llvm.access.group !10
%arrayidx8 = getelementptr inbounds i32, ptr %d, i64 %indvars.iv
%2 = load i32, ptr %arrayidx8, align 4, !llvm.access.group !10
%add2 = add nsw i32 %2, %w
br label %cond.end
cond.end: ; preds = %for.body, %cond.false
%cond = phi i32 [ %add, %cond.false ], [ %add2, %cond.true ]
%arrayidx9 = getelementptr inbounds i32, ptr %res, i64 %indvars.iv
store i32 %cond, ptr %arrayidx9, align 4, !llvm.access.group !10
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond = icmp eq i64 %indvars.iv.next, 16
br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !0
for.end: ; preds = %cond.end
ret void
}
attributes #0 = { norecurse nounwind uwtable }
!0 = distinct !{!0, !1, !{!"llvm.loop.parallel_accesses", !10}}
!1 = !{!"llvm.loop.vectorize.enable", i1 true}
!10 = distinct !{}
|
