forked from OSchip/llvm-project
73 lines
2.5 KiB
LLVM
73 lines
2.5 KiB
LLVM
; RUN: opt %loadPolly -basicaa -polly-dependences -analyze < %s | FileCheck %s
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;
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; CHECK: RAW dependences:
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; CHECK: { }
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; CHECK: WAR dependences:
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; CHECK: { }
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; CHECK: WAW dependences:
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; CHECK: { }
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; CHECK: Reduction dependences:
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; CHECK-DAG: Stmt_for_body3[i0, i1] -> Stmt_for_body3[o0, 1 + i0 + i1 - o0] : o0 <= 1 + i0 and o0 >= i0 and o0 <= 1023 and i0 >= 0 and i1 >= 0 and o0 >= -1022 + i0 + i1
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;
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; void f(int *restrict A, int *restrict B, int *restrict Values) {
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; for (int i = 0; i < 1024; i++) {
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; for (int j = 0; j < 1024; j++) {
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; A[i] += Values[i + j - 1];
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; B[j] += Values[i + j + 42];
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; }
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; }
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; }
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;
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target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
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define void @f(i32* noalias %A, i32* noalias %B, i32* noalias %Values) {
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entry:
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br label %for.cond
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for.cond: ; preds = %for.inc11, %entry
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%i.0 = phi i32 [ 0, %entry ], [ %inc12, %for.inc11 ]
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%exitcond1 = icmp ne i32 %i.0, 1024
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br i1 %exitcond1, label %for.body, label %for.end13
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for.body: ; preds = %for.cond
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br label %for.cond1
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for.cond1: ; preds = %for.inc, %for.body
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%j.0 = phi i32 [ 0, %for.body ], [ %inc, %for.inc ]
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%exitcond = icmp ne i32 %j.0, 1024
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br i1 %exitcond, label %for.body3, label %for.end
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for.body3: ; preds = %for.cond1
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%add = add nsw i32 %i.0, %j.0
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%sub = add nsw i32 %add, -1
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%arrayidx = getelementptr inbounds i32, i32* %Values, i32 %sub
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%tmp = load i32, i32* %arrayidx, align 4
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%arrayidx4 = getelementptr inbounds i32, i32* %A, i32 %i.0
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%tmp2 = load i32, i32* %arrayidx4, align 4
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%add5 = add nsw i32 %tmp2, %tmp
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store i32 %add5, i32* %arrayidx4, align 4
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%add6 = add nsw i32 %i.0, %j.0
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%add7 = add nsw i32 %add6, 42
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%arrayidx8 = getelementptr inbounds i32, i32* %Values, i32 %add7
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%tmp3 = load i32, i32* %arrayidx8, align 4
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%arrayidx9 = getelementptr inbounds i32, i32* %B, i32 %j.0
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%tmp4 = load i32, i32* %arrayidx9, align 4
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%add10 = add nsw i32 %tmp4, %tmp3
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store i32 %add10, i32* %arrayidx9, align 4
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br label %for.inc
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for.inc: ; preds = %for.body3
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%inc = add nsw i32 %j.0, 1
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br label %for.cond1
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for.end: ; preds = %for.cond1
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br label %for.inc11
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for.inc11: ; preds = %for.end
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%inc12 = add nsw i32 %i.0, 1
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br label %for.cond
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for.end13: ; preds = %for.cond
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ret void
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}
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