1; RUN: opt %loadNPMPolly -polly-stmt-granularity=bb '-passes=print<polly-dependences>' -polly-dependences-analysis-type=value-based -polly-dependences-analysis-level=reference-wise -disable-output < %s | FileCheck %s --check-prefix=REF 2; RUN: opt %loadNPMPolly -polly-stmt-granularity=bb '-passes=print<polly-dependences>' -polly-dependences-analysis-type=value-based -polly-dependences-analysis-level=access-wise -disable-output < %s | FileCheck %s --check-prefix=ACC 3 4; REF: RAW dependences: 5; REF-NEXT: [N] -> { [Stmt_for_body[i0] -> MemRef_b[]] -> [Stmt_for_body[6 + i0] -> MemRef_b[]] : 0 <= i0 <= -13 + 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 } 6; REF-NEXT: WAR dependences: 7; REF-NEXT: { } 8; REF-NEXT: WAW dependences: 9; REF-NEXT: { } 10; REF-NEXT: Reduction dependences: 11; REF-NEXT: { } 12 13; ACC: RAW dependences: 14; ACC-NEXT: [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[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_Write3[]] -> [Stmt_for_body[6 + i0] -> Stmt_for_body_Read2[]] : 0 <= i0 <= -13 + N } 15 16; ACC-NEXT: WAR dependences: 17; ACC-NEXT: [N] -> { } 18; ACC-NEXT: WAW dependences: 19; ACC-NEXT: [N] -> { } 20; ACC-NEXT: Reduction dependences: 21; ACC-NEXT: [N] -> { } 22 23; void test(char a[], char b[], long N) { 24; for (long i = 6; i < N; ++i) { 25; a[i] = a[i - 4] + i; 26; b[i] = b[i - 6] + i; 27; } 28; } 29 30target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 31target triple = "x86_64-unknown-linux-gnu" 32 33; Function Attrs: nounwind uwtable 34define void @test(ptr %a, ptr %b, i64 %N) #0 { 35entry: 36 br label %for.cond 37 38for.cond: ; preds = %for.inc, %entry 39 %i.0 = phi i64 [ 6, %entry ], [ %inc, %for.inc ] 40 %cmp = icmp slt i64 %i.0, %N 41 br i1 %cmp, label %for.body, label %for.end 42 43for.body: ; preds = %for.cond 44 %sub = sub nsw i64 %i.0, 4 45 %arrayidx = getelementptr inbounds i8, ptr %a, i64 %sub 46 %0 = load i8, ptr %arrayidx, align 1 47 %conv = sext i8 %0 to i64 48 %add = add nsw i64 %conv, %i.0 49 %conv1 = trunc i64 %add to i8 50 %arrayidx2 = getelementptr inbounds i8, ptr %a, i64 %i.0 51 store i8 %conv1, ptr %arrayidx2, align 1 52 %sub3 = sub nsw i64 %i.0, 6 53 %arrayidx4 = getelementptr inbounds i8, ptr %b, i64 %sub3 54 %1 = load i8, ptr %arrayidx4, align 1 55 %conv5 = sext i8 %1 to i64 56 %add6 = add nsw i64 %conv5, %i.0 57 %conv7 = trunc i64 %add6 to i8 58 %arrayidx8 = getelementptr inbounds i8, ptr %b, i64 %i.0 59 store i8 %conv7, ptr %arrayidx8, align 1 60 br label %for.inc 61 62for.inc: ; preds = %for.body 63 %inc = add nsw i64 %i.0, 1 64 br label %for.cond 65 66for.end: ; preds = %for.cond 67 ret void 68} 69 70attributes #0 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "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" } 71 72!llvm.ident = !{!0} 73 74!0 = !{!"clang version 3.9.0"} 75