xref: /llvm-project/llvm/test/Analysis/CostModel/X86/vectorized-loop.ll (revision 36ec97a5754349b0269348b249cf22dfcfbd9d7f)
1; RUN: opt < %s  -passes="print<cost-model>" 2>&1 -disable-output -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s
2
3target 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"
4target triple = "x86_64-apple-macosx10.8.0"
5
6define i32 @foo(ptr noalias nocapture %A, ptr noalias nocapture %B, i32 %start, i32 %end) nounwind uwtable ssp {
7entry:
8  ;CHECK: cost of 1 {{.*}} icmp
9  %cmp7 = icmp slt i32 %start, %end
10  br i1 %cmp7, label %for.body.lr.ph, label %for.end
11
12for.body.lr.ph:                                   ; preds = %entry
13  ;CHECK: cost of 1 {{.*}} sext
14  %0 = sext i32 %start to i64
15  %1 = sub i32 %end, %start
16  %2 = zext i32 %1 to i64
17  %end.idx = add i64 %2, %0
18  ;CHECK: cost of 1 {{.*}} add
19  %n.vec = and i64 %2, 4294967288
20  %end.idx.rnd.down = add i64 %n.vec, %0
21  ;CHECK: cost of 1 {{.*}} icmp
22  %cmp.zero = icmp eq i64 %n.vec, 0
23  br i1 %cmp.zero, label %middle.block, label %vector.body
24
25vector.body:                                      ; preds = %for.body.lr.ph, %vector.body
26  %index = phi i64 [ %index.next, %vector.body ], [ %0, %for.body.lr.ph ]
27  %3 = add i64 %index, 2
28  %4 = getelementptr inbounds i32, ptr %B, i64 %3
29  ;CHECK: cost of 2 {{.*}} load
30  %5 = load <8 x i32>, ptr %4, align 4
31  ;CHECK: cost of 5 {{.*}} mul
32  %6 = mul nsw <8 x i32> %5, <i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5>
33  %7 = getelementptr inbounds i32, ptr %A, i64 %index
34  ;CHECK: cost of 2 {{.*}} load
35  %8 = load <8 x i32>, ptr %7, align 4
36  ;CHECK: cost of 4 {{.*}} add
37  %9 = add nsw <8 x i32> %8, %6
38  ;CHECK: cost of 2 {{.*}} store
39  store <8 x i32> %9, ptr %7, align 4
40  %index.next = add i64 %index, 8
41  %10 = icmp eq i64 %index.next, %end.idx.rnd.down
42  ;CHECK: cost of 0 {{.*}} br
43  br i1 %10, label %middle.block, label %vector.body
44
45middle.block:                                     ; preds = %vector.body, %for.body.lr.ph
46  %cmp.n = icmp eq i64 %end.idx, %end.idx.rnd.down
47  br i1 %cmp.n, label %for.end, label %for.body
48
49for.body:                                         ; preds = %middle.block, %for.body
50  %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ %end.idx.rnd.down, %middle.block ]
51  %11 = add nsw i64 %indvars.iv, 2
52  %arrayidx = getelementptr inbounds i32, ptr %B, i64 %11
53  ;CHECK: cost of 1 {{.*}} load
54  %12 = load i32, ptr %arrayidx, align 4
55  ;CHECK: cost of 1 {{.*}} mul
56  %mul = mul nsw i32 %12, 5
57  %arrayidx2 = getelementptr inbounds i32, ptr %A, i64 %indvars.iv
58  ;CHECK: cost of 1 {{.*}} load
59  %13 = load i32, ptr %arrayidx2, align 4
60  %add3 = add nsw i32 %13, %mul
61  store i32 %add3, ptr %arrayidx2, align 4
62  %indvars.iv.next = add i64 %indvars.iv, 1
63  ;CHECK: cost of 0 {{.*}} trunc
64  %14 = trunc i64 %indvars.iv.next to i32
65  %cmp = icmp slt i32 %14, %end
66  ;CHECK: cost of 0 {{.*}} br
67  br i1 %cmp, label %for.body, label %for.end
68
69for.end:                                          ; preds = %middle.block, %for.body, %entry
70  ;CHECK: cost of 0 {{.*}} ret
71  ret i32 undef
72}
73