forked from OSchip/llvm-project
73 lines
2.6 KiB
LLVM
73 lines
2.6 KiB
LLVM
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; RUN: opt %loadPolly -polly-ast -polly-ast-detect-parallel -analyze < %s | FileCheck %s
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; RUN: opt %loadPolly -polyhedral-info -polly-check-parallel -analyze < %s | FileCheck %s -check-prefix=PINFO
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;
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; CHECK: #pragma known-parallel reduction (^ : MemRef_sum)
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; void f(int N, int M, int P, int sum[P][M]) {
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; PINFO: for.cond: Loop is not parallel.
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; for (int i = 0; i < N; i++)
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; PINFO-NEXT: for.cond1: Loop is parallel.
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; for (int j = 0; j < P; j++)
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; CHECK: #pragma simd
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; PINFO-NEXT: for.cond4: Loop is parallel.
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; for (int k = 0; k < M; k++)
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; sum[j][k] ^= j;
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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 %N, i32 %M, i32 %P, i32* %sum) {
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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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%cmp = icmp slt i32 %i.0, %N
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br i1 %cmp, 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.inc8, %for.body
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%j.0 = phi i32 [ 0, %for.body ], [ %inc9, %for.inc8 ]
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%cmp2 = icmp slt i32 %j.0, %P
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br i1 %cmp2, label %for.body3, label %for.end10
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for.body3: ; preds = %for.cond1
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br label %for.cond4
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for.cond4: ; preds = %for.inc, %for.body3
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%k.0 = phi i32 [ 0, %for.body3 ], [ %inc, %for.inc ]
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%cmp5 = icmp slt i32 %k.0, %M
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br i1 %cmp5, label %for.body6, label %for.end
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for.body6: ; preds = %for.cond4
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%tmp = mul nsw i32 %j.0, %M
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%arrayidx.sum = add i32 %tmp, %k.0
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%arrayidx7 = getelementptr inbounds i32, i32* %sum, i32 %arrayidx.sum
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%tmp1 = load i32, i32* %arrayidx7, align 4
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%xor = xor i32 %tmp1, %j.0
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store i32 %xor, i32* %arrayidx7, align 4
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br label %for.inc
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for.inc: ; preds = %for.body6
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%inc = add nsw i32 %k.0, 1
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br label %for.cond4
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for.end: ; preds = %for.cond4
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br label %for.inc8
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for.inc8: ; preds = %for.end
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%inc9 = add nsw i32 %j.0, 1
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br label %for.cond1
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for.end10: ; preds = %for.cond1
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br label %for.inc11
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for.inc11: ; preds = %for.end10
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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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