1; RUN: opt < %s -loop-reduce -S | FileCheck %s
2target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
3target triple = "x86_64-apple-macosx10.9.0"
4
5; LSR shouldn't reuse IV if the resultant offset is not valid for the operand type.
6; CHECK-NOT: trunc i32 %.ph to i8
7
8%struct.anon = type { i32, i32, i32 }
9
10@c = global i32 1, align 4
11@.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
12@b = common global i32 0, align 4
13@a = common global %struct.anon zeroinitializer, align 4
14@e = common global %struct.anon zeroinitializer, align 4
15@d = common global i32 0, align 4
16@f = common global i32 0, align 4
17@g = common global i32 0, align 4
18@h = common global i32 0, align 4
19
20; Function Attrs: nounwind optsize ssp uwtable
21define i32 @main() #0 {
22entry:
23  %0 = load i32, i32* getelementptr inbounds (%struct.anon, %struct.anon* @a, i64 0, i32 0), align 4, !tbaa !1
24  %tobool7.i = icmp eq i32 %0, 0
25  %.promoted.i = load i32, i32* getelementptr inbounds (%struct.anon, %struct.anon* @a, i64 0, i32 2), align 4, !tbaa !6
26  %f.promoted.i = load i32, i32* @f, align 4, !tbaa !7
27  br label %for.body6.i.outer
28
29for.body6.i.outer:                                ; preds = %entry, %lor.end.i
30  %.ph = phi i32 [ %add.i, %lor.end.i ], [ 0, %entry ]
31  %or1512.i.ph = phi i32 [ %or15.i, %lor.end.i ], [ %f.promoted.i, %entry ]
32  %or1410.i.ph = phi i32 [ %or14.i, %lor.end.i ], [ %.promoted.i, %entry ]
33  %p.addr.16.i.ph = phi i8 [ %inc10.i, %lor.end.i ], [ -128, %entry ]
34  br i1 %tobool7.i, label %if.end9.i, label %lbl.loopexit.i
35
36lbl.loopexit.i:                                   ; preds = %for.body6.i.outer, %lbl.loopexit.i
37  br label %lbl.loopexit.i
38
39if.end9.i:                                        ; preds = %for.body6.i.outer
40  %inc10.i = add i8 %p.addr.16.i.ph, 1
41  %tobool12.i = icmp eq i8 %p.addr.16.i.ph, 0
42  br i1 %tobool12.i, label %lor.rhs.i, label %lor.end.i
43
44lor.rhs.i:                                        ; preds = %if.end9.i
45  %1 = load i32, i32* @b, align 4, !tbaa !7
46  %dec.i = add nsw i32 %1, -1
47  store i32 %dec.i, i32* @b, align 4, !tbaa !7
48  %tobool13.i = icmp ne i32 %1, 0
49  br label %lor.end.i
50
51lor.end.i:                                        ; preds = %lor.rhs.i, %if.end9.i
52  %2 = phi i1 [ true, %if.end9.i ], [ %tobool13.i, %lor.rhs.i ]
53  %lor.ext.i = zext i1 %2 to i32
54  %or14.i = or i32 %lor.ext.i, %or1410.i.ph
55  %or15.i = or i32 %or14.i, %or1512.i.ph
56  %add.i = add nsw i32 %.ph, 2
57  %cmp.i = icmp slt i32 %add.i, 21
58  br i1 %cmp.i, label %for.body6.i.outer, label %fn1.exit
59
60fn1.exit:                                         ; preds = %lor.end.i
61  store i32 0, i32* @g, align 4, !tbaa !7
62  store i32 %or14.i, i32* getelementptr inbounds (%struct.anon, %struct.anon* @a, i64 0, i32 2), align 4, !tbaa !6
63  store i32 %or15.i, i32* @f, align 4, !tbaa !7
64  store i32 %add.i, i32* getelementptr inbounds (%struct.anon, %struct.anon* @e, i64 0, i32 1), align 4, !tbaa !8
65  store i32 0, i32* @h, align 4, !tbaa !7
66  %3 = load i32, i32* @b, align 4, !tbaa !7
67  %call1 = tail call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %3) #2
68  ret i32 0
69}
70
71; Function Attrs: nounwind optsize
72declare i32 @printf(i8* nocapture readonly, ...) #1
73
74attributes #0 = { nounwind optsize ssp uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
75attributes #1 = { nounwind optsize "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
76attributes #2 = { nounwind optsize }
77
78!llvm.ident = !{!0}
79
80!0 = !{!"clang version 3.5 "}
81!1 = !{!2, !3, i64 0}
82!2 = !{!"", !3, i64 0, !3, i64 4, !3, i64 8}
83!3 = !{!"int", !4, i64 0}
84!4 = !{!"omnipotent char", !5, i64 0}
85!5 = !{!"Simple C/C++ TBAA"}
86!6 = !{!2, !3, i64 8}
87!7 = !{!3, !3, i64 0}
88!8 = !{!2, !3, i64 4}
89