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comparison polly/test/CodeGen/switch-in-non-affine-region.ll @ 236:c4bab56944e8 llvm-original

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LLVM 16
author kono
date Wed, 09 Nov 2022 17:45:10 +0900
parents
children 1f2b6ac9f198
comparison
equal deleted inserted replaced
232:70dce7da266c 236:c4bab56944e8
1 ; RUN: opt %loadPolly \
2 ; RUN: -S -polly-codegen < %s | FileCheck %s
3 ;
4 ; void f(int *A, int N) {
5 ; for (int i = 0; i < N; i++)
6 ; if (A[i])
7 ; switch (i % 4) {
8 ; case 0:
9 ; A[i] += 1;
10 ; break;
11 ; case 1:
12 ; A[i] += 2;
13 ; break;
14 ; }
15 ; }
16 ;
17 ; CHECK: polly.stmt.if.then:
18 ; CHECK: %1 = trunc i64 %polly.indvar to i32
19 ; CHECK: %p_rem = srem i32 %1, 4
20 ; CHECK: switch i32 %p_rem, label %polly.stmt.sw.epilog [
21 ; CHECK: i32 0, label %polly.stmt.sw.bb
22 ; CHECK: i32 1, label %polly.stmt.sw.bb.3
23 ; CHECK: ]
24 ;
25 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
26
27 define void @f(i32* %A, i32 %N) {
28 entry:
29 %tmp = sext i32 %N to i64
30 br label %for.cond
31
32 for.cond: ; preds = %for.inc, %entry
33 %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
34 %cmp = icmp slt i64 %indvars.iv, %tmp
35 br i1 %cmp, label %for.body, label %for.end
36
37 for.body: ; preds = %for.cond
38 %arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
39 %tmp1 = load i32, i32* %arrayidx, align 4
40 %tobool = icmp eq i32 %tmp1, 0
41 br i1 %tobool, label %if.end, label %if.then
42
43 if.then: ; preds = %for.body
44 %tmp2 = trunc i64 %indvars.iv to i32
45 %rem = srem i32 %tmp2, 4
46 switch i32 %rem, label %sw.epilog [
47 i32 0, label %sw.bb
48 i32 1, label %sw.bb.3
49 ]
50
51 sw.bb: ; preds = %if.then
52 %arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
53 %tmp3 = load i32, i32* %arrayidx2, align 4
54 %add = add nsw i32 %tmp3, 1
55 store i32 %add, i32* %arrayidx2, align 4
56 br label %sw.epilog
57
58 sw.bb.3: ; preds = %if.then
59 %arrayidx5 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
60 %tmp4 = load i32, i32* %arrayidx5, align 4
61 %add6 = add nsw i32 %tmp4, 2
62 store i32 %add6, i32* %arrayidx5, align 4
63 br label %sw.epilog
64
65 sw.epilog: ; preds = %sw.bb.3, %sw.bb, %if.then
66 br label %if.end
67
68 if.end: ; preds = %for.body, %sw.epilog
69 br label %for.inc
70
71 for.inc: ; preds = %if.end
72 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
73 br label %for.cond
74
75 for.end: ; preds = %for.cond
76 ret void
77 }