1 ; RUN: opt < %s -loop-reduce -S | FileCheck %s
2 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
3 target triple = "x86_64-apple-macosx10.9.0"
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
8 %struct.anon = type { i32, i32, i32 }
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
20 ; Function Attrs: nounwind optsize ssp uwtable
21 define i32 @main() #0 {
23 %0 = load i32, ptr @a, align 4, !tbaa !1
24 %tobool7.i = icmp eq i32 %0, 0
25 %.promoted.i = load i32, ptr getelementptr inbounds (%struct.anon, ptr @a, i64 0, i32 2), align 4, !tbaa !6
26 %f.promoted.i = load i32, ptr @f, align 4, !tbaa !7
27 br label %for.body6.i.outer
29 for.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
36 lbl.loopexit.i: ; preds = %for.body6.i.outer, %lbl.loopexit.i
37 br label %lbl.loopexit.i
39 if.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
44 lor.rhs.i: ; preds = %if.end9.i
45 %1 = load i32, ptr @b, align 4, !tbaa !7
46 %dec.i = add nsw i32 %1, -1
47 store i32 %dec.i, ptr @b, align 4, !tbaa !7
48 %tobool13.i = icmp ne i32 %1, 0
51 lor.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
60 fn1.exit: ; preds = %lor.end.i
61 store i32 0, ptr @g, align 4, !tbaa !7
62 store i32 %or14.i, ptr getelementptr inbounds (%struct.anon, ptr @a, i64 0, i32 2), align 4, !tbaa !6
63 store i32 %or15.i, ptr @f, align 4, !tbaa !7
64 store i32 %add.i, ptr getelementptr inbounds (%struct.anon, ptr @e, i64 0, i32 1), align 4, !tbaa !8
65 store i32 0, ptr @h, align 4, !tbaa !7
66 %3 = load i32, ptr @b, align 4, !tbaa !7
67 %call1 = tail call i32 (ptr, ...) @printf(ptr @.str, i32 %3) #2
71 ; Function Attrs: nounwind optsize
72 declare i32 @printf(ptr nocapture readonly, ...) #1
74 attributes #0 = { nounwind optsize ssp uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
75 attributes #1 = { nounwind optsize "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
76 attributes #2 = { nounwind optsize }
80 !0 = !{!"clang version 3.5 "}
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"}