forked from OSchip/llvm-project
75 lines
2.8 KiB
LLVM
75 lines
2.8 KiB
LLVM
; RUN: opt %loadPolly -pass-remarks-analysis="polly-scops" -polly-scops -disable-output < %s 2>&1 | FileCheck %s
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;
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; CHECK: remark: <unknown>:0:0: SCoP begins here.
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; CHECK-NEXT: remark: <unknown>:0:0: Use user assumption: [i, N, M] -> { : N <= i or (N > i and N >= 0) }
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; CHECK-NEXT: remark: <unknown>:0:0: Inbounds assumption: [i, N, M] -> { : N <= i or (N > i and M <= 100) }
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; CHECK-NEXT: remark: <unknown>:0:0: SCoP ends here.
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;
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; void f(int *restrict A, int *restrict B, int i, int N, int M, int C[100][100]) {
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; for (; i < N; i++) {
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; __builtin_assume(N >= 0);
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; for (int j = 0; j != M; j++) {
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; __builtin_assume(N >= 0);
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; C[i][j] += A[i * M + j] + B[i + j];
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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-i64:64-f80:128-n8:16:32:64-S128"
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define void @f(i32* noalias %A, i32* noalias %B, i32 %i, i32 %N, i32 %M, [100 x i32]* %C) {
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entry:
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%tmp = zext i32 %M to i64
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%tmp6 = sext i32 %i to i64
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%tmp7 = sext i32 %N to i64
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%tmp8 = sext i32 %M to i64
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br label %for.cond
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for.cond: ; preds = %for.inc.15, %entry
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%indvars.iv3 = phi i64 [ %indvars.iv.next4, %for.inc.15 ], [ %tmp6, %entry ]
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%cmp = icmp slt i64 %indvars.iv3, %tmp7
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br i1 %cmp, label %for.body, label %for.end.17
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for.body: ; preds = %for.cond
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%cmp1 = icmp sgt i32 %N, -1
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call void @llvm.assume(i1 %cmp1)
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br label %for.cond.2
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for.cond.2: ; preds = %for.inc, %for.body
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %for.body ]
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%cmp3 = icmp eq i64 %indvars.iv, %tmp
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br i1 %cmp3, label %for.end, label %for.body.4
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for.body.4: ; preds = %for.cond.2
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%tmp9 = mul nsw i64 %indvars.iv3, %tmp8
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%tmp10 = add nsw i64 %tmp9, %indvars.iv
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %tmp10
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%tmp11 = load i32, i32* %arrayidx, align 4
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%tmp12 = add nsw i64 %indvars.iv3, %indvars.iv
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%arrayidx8 = getelementptr inbounds i32, i32* %B, i64 %tmp12
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%tmp13 = load i32, i32* %arrayidx8, align 4
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%add9 = add nsw i32 %tmp11, %tmp13
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%arrayidx13 = getelementptr inbounds [100 x i32], [100 x i32]* %C, i64 %indvars.iv3, i64 %indvars.iv
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%tmp14 = load i32, i32* %arrayidx13, align 4
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%add14 = add nsw i32 %tmp14, %add9
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store i32 %add14, i32* %arrayidx13, align 4
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br label %for.inc
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for.inc: ; preds = %for.body.4
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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br label %for.cond.2
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for.end: ; preds = %for.cond.2
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br label %for.inc.15
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for.inc.15: ; preds = %for.end
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%indvars.iv.next4 = add nsw i64 %indvars.iv3, 1
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br label %for.cond
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for.end.17: ; preds = %for.cond
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ret void
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}
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declare void @llvm.assume(i1) #1
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