1 ; RUN: opt %loadPolly -polly-dependences -polly-dependences-analysis-type=value-based -polly-dependences-analysis-level=reference-wise -analyze < %s | FileCheck %s --check-prefix=REF
2 ; RUN: opt %loadPolly -polly-dependences -polly-dependences-analysis-type=value-based -polly-dependences-analysis-level=access-wise -analyze < %s | FileCheck %s --check-prefix=ACC
3 ; RUN: opt %loadPolly -polly-function-dependences -polly-dependences-analysis-type=value-based -polly-dependences-analysis-level=access-wise -analyze < %s | FileCheck %s --check-prefix=ACC
5 ; REF: RAW dependences:
6 ; REF-NEXT: [N] -> { Stmt_for_body[i0] -> Stmt_for_body[6 + i0] : 0 <= i0 <= -13 + N; Stmt_for_body[i0] -> Stmt_for_body[4 + i0] : 0 <= i0 <= -11 + N; [Stmt_for_body[i0] -> MemRef_a[]] -> [Stmt_for_body[4 + i0] -> MemRef_a[]] : 0 <= i0 <= -11 + N; [Stmt_for_body[i0] -> MemRef_b[]] -> [Stmt_for_body[6 + i0] -> MemRef_b[]] : 0 <= i0 <= -13 + N }
7 ; REF-NEXT: WAR dependences:
9 ; REF-NEXT: WAW dependences:
11 ; REF-NEXT: Reduction dependences:
14 ; ACC: RAW dependences:
15 ; ACC-NEXT: [N] -> { Stmt_for_body[i0] -> Stmt_for_body[6 + i0] : 0 <= i0 <= -13 + N; Stmt_for_body[i0] -> Stmt_for_body[4 + i0] : 0 <= i0 <= -11 + N; [Stmt_for_body[i0] -> Stmt_for_body_Write1[]] -> [Stmt_for_body[4 + i0] -> Stmt_for_body_Read0[]] : 0 <= i0 <= -11 + N; [Stmt_for_body[i0] -> Stmt_for_body_Write3[]] -> [Stmt_for_body[6 + i0] -> Stmt_for_body_Read2[]] : 0 <= i0 <= -13 + N }
17 ; ACC-NEXT: WAR dependences:
18 ; ACC-NEXT: [N] -> { }
19 ; ACC-NEXT: WAW dependences:
20 ; ACC-NEXT: [N] -> { }
21 ; ACC-NEXT: Reduction dependences:
22 ; ACC-NEXT: [N] -> { }
24 ; void test(char a[], char b[], long N) {
25 ; for (long i = 6; i < N; ++i) {
26 ; a[i] = a[i - 4] + i;
27 ; b[i] = b[i - 6] + i;
31 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
32 target triple = "x86_64-unknown-linux-gnu"
34 ; Function Attrs: nounwind uwtable
35 define void @test(i8* %a, i8* %b, i64 %N) #0 {
39 for.cond: ; preds = %for.inc, %entry
40 %i.0 = phi i64 [ 6, %entry ], [ %inc, %for.inc ]
41 %cmp = icmp slt i64 %i.0, %N
42 br i1 %cmp, label %for.body, label %for.end
44 for.body: ; preds = %for.cond
45 %sub = sub nsw i64 %i.0, 4
46 %arrayidx = getelementptr inbounds i8, i8* %a, i64 %sub
47 %0 = load i8, i8* %arrayidx, align 1
48 %conv = sext i8 %0 to i64
49 %add = add nsw i64 %conv, %i.0
50 %conv1 = trunc i64 %add to i8
51 %arrayidx2 = getelementptr inbounds i8, i8* %a, i64 %i.0
52 store i8 %conv1, i8* %arrayidx2, align 1
53 %sub3 = sub nsw i64 %i.0, 6
54 %arrayidx4 = getelementptr inbounds i8, i8* %b, i64 %sub3
55 %1 = load i8, i8* %arrayidx4, align 1
56 %conv5 = sext i8 %1 to i64
57 %add6 = add nsw i64 %conv5, %i.0
58 %conv7 = trunc i64 %add6 to i8
59 %arrayidx8 = getelementptr inbounds i8, i8* %b, i64 %i.0
60 store i8 %conv7, i8* %arrayidx8, align 1
63 for.inc: ; preds = %for.body
64 %inc = add nsw i64 %i.0, 1
67 for.end: ; preds = %for.cond
71 attributes #0 = { nounwind uwtable "disable-tail-calls"="false" "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" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
75 !0 = !{!"clang version 3.9.0 (http://llvm.org/git/clang.git 3d5d4c39659f11dfbe8e11c857cadf5c449b559b) (http://llvm.org/git/llvm.git 801561e2bba12f2aa0285feb1105e110df443761)"}