forked from OSchip/llvm-project
76 lines
3.6 KiB
LLVM
76 lines
3.6 KiB
LLVM
; RUN: opt %loadPolly -polly-stmt-granularity=bb -polly-dependences -polly-dependences-analysis-type=value-based -polly-dependences-analysis-level=reference-wise -analyze < %s | FileCheck %s --check-prefix=REF
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; RUN: opt %loadPolly -polly-stmt-granularity=bb -polly-dependences -polly-dependences-analysis-type=value-based -polly-dependences-analysis-level=access-wise -analyze < %s | FileCheck %s --check-prefix=ACC
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; RUN: opt %loadPolly -polly-stmt-granularity=bb -polly-function-dependences -polly-dependences-analysis-type=value-based -polly-dependences-analysis-level=access-wise -analyze < %s | FileCheck %s --check-prefix=ACC
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;
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; REF: RAW dependences:
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; 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 }
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; REF-NEXT: WAR dependences:
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; REF-NEXT: { }
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; REF-NEXT: WAW dependences:
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; REF-NEXT: { }
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; REF-NEXT: Reduction dependences:
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; REF-NEXT: { }
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; ACC: RAW dependences:
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; 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 }
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; ACC-NEXT: WAR dependences:
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; ACC-NEXT: [N] -> { }
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; ACC-NEXT: WAW dependences:
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; ACC-NEXT: [N] -> { }
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; ACC-NEXT: Reduction dependences:
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; ACC-NEXT: [N] -> { }
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; void test(char a[], char b[], long N) {
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; for (long i = 6; i < N; ++i) {
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; a[i] = a[i - 4] + i;
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; b[i] = b[i - 6] + i;
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; }
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; }
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; Function Attrs: nounwind uwtable
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define void @test(i8* %a, i8* %b, i64 %N) #0 {
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entry:
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br label %for.cond
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for.cond: ; preds = %for.inc, %entry
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%i.0 = phi i64 [ 6, %entry ], [ %inc, %for.inc ]
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%cmp = icmp slt i64 %i.0, %N
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br i1 %cmp, label %for.body, label %for.end
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for.body: ; preds = %for.cond
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%sub = sub nsw i64 %i.0, 4
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%arrayidx = getelementptr inbounds i8, i8* %a, i64 %sub
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%0 = load i8, i8* %arrayidx, align 1
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%conv = sext i8 %0 to i64
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%add = add nsw i64 %conv, %i.0
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%conv1 = trunc i64 %add to i8
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%arrayidx2 = getelementptr inbounds i8, i8* %a, i64 %i.0
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store i8 %conv1, i8* %arrayidx2, align 1
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%sub3 = sub nsw i64 %i.0, 6
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%arrayidx4 = getelementptr inbounds i8, i8* %b, i64 %sub3
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%1 = load i8, i8* %arrayidx4, align 1
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%conv5 = sext i8 %1 to i64
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%add6 = add nsw i64 %conv5, %i.0
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%conv7 = trunc i64 %add6 to i8
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%arrayidx8 = getelementptr inbounds i8, i8* %b, i64 %i.0
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store i8 %conv7, i8* %arrayidx8, align 1
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br label %for.inc
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for.inc: ; preds = %for.body
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%inc = add nsw i64 %i.0, 1
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br label %for.cond
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for.end: ; preds = %for.cond
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ret void
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}
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attributes #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" }
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!llvm.ident = !{!0}
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!0 = !{!"clang version 3.9.0"}
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