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
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
; RUN: opt < %s -cost-model -analyze -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s
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"
target triple = "x86_64-apple-macosx10.8.0"
define i32 @foo(i32* noalias nocapture %A, i32* noalias nocapture %B, i32 %start, i32 %end) nounwind uwtable ssp {
entry:
;CHECK: cost of 1 {{.*}} icmp
%cmp7 = icmp slt i32 %start, %end
br i1 %cmp7, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry
;CHECK: cost of 1 {{.*}} sext
%0 = sext i32 %start to i64
%1 = sub i32 %end, %start
%2 = zext i32 %1 to i64
%end.idx = add i64 %2, %0
;CHECK: cost of 1 {{.*}} add
%n.vec = and i64 %2, 4294967288
%end.idx.rnd.down = add i64 %n.vec, %0
;CHECK: cost of 1 {{.*}} icmp
%cmp.zero = icmp eq i64 %n.vec, 0
br i1 %cmp.zero, label %middle.block, label %vector.body
vector.body: ; preds = %for.body.lr.ph, %vector.body
%index = phi i64 [ %index.next, %vector.body ], [ %0, %for.body.lr.ph ]
%3 = add i64 %index, 2
%4 = getelementptr inbounds i32* %B, i64 %3
;CHECK: cost of 0 {{.*}} bitcast
%5 = bitcast i32* %4 to <8 x i32>*
;CHECK: cost of 2 {{.*}} load
%6 = load <8 x i32>* %5, align 4
;CHECK: cost of 4 {{.*}} mul
%7 = mul nsw <8 x i32> %6, <i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5>
%8 = getelementptr inbounds i32* %A, i64 %index
%9 = bitcast i32* %8 to <8 x i32>*
;CHECK: cost of 2 {{.*}} load
%10 = load <8 x i32>* %9, align 4
;CHECK: cost of 4 {{.*}} add
%11 = add nsw <8 x i32> %10, %7
;CHECK: cost of 2 {{.*}} store
store <8 x i32> %11, <8 x i32>* %9, align 4
%index.next = add i64 %index, 8
%12 = icmp eq i64 %index.next, %end.idx.rnd.down
;CHECK: cost of 0 {{.*}} br
br i1 %12, label %middle.block, label %vector.body
middle.block: ; preds = %vector.body, %for.body.lr.ph
%cmp.n = icmp eq i64 %end.idx, %end.idx.rnd.down
br i1 %cmp.n, label %for.end, label %for.body
for.body: ; preds = %middle.block, %for.body
%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ %end.idx.rnd.down, %middle.block ]
%13 = add nsw i64 %indvars.iv, 2
%arrayidx = getelementptr inbounds i32* %B, i64 %13
;CHECK: cost of 1 {{.*}} load
%14 = load i32* %arrayidx, align 4, !tbaa !0
;CHECK: cost of 1 {{.*}} mul
%mul = mul nsw i32 %14, 5
%arrayidx2 = getelementptr inbounds i32* %A, i64 %indvars.iv
;CHECK: cost of 1 {{.*}} load
%15 = load i32* %arrayidx2, align 4, !tbaa !0
%add3 = add nsw i32 %15, %mul
store i32 %add3, i32* %arrayidx2, align 4, !tbaa !0
%indvars.iv.next = add i64 %indvars.iv, 1
;CHECK: cost of 0 {{.*}} trunc
%16 = trunc i64 %indvars.iv.next to i32
%cmp = icmp slt i32 %16, %end
;CHECK: cost of 0 {{.*}} br
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %middle.block, %for.body, %entry
;CHECK: cost of 0 {{.*}} ret
ret i32 undef
}
!0 = metadata !{metadata !"int", metadata !1}
!1 = metadata !{metadata !"omnipotent char", metadata !2}
!2 = metadata !{metadata !"Simple C/C++ TBAA"}
|
