llvm-project

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; RUN: opt %loadNPMPolly -polly-allow-nonaffine-branches '-passes=print<polly-detect>' -disable-output < %s 2>&1 | FileCheck %s
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;
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;    void f(float *A) {
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;      for (int i = 0; i < 1024; i++)
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;        if (A[i] == A[i - 1])
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;          A[i]++;
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;    }
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;
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; CHECK: Valid Region for Scop: bb1 => bb14
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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(ptr %A) {
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bb:
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  br label %bb1
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bb1:                                              ; preds = %bb13, %bb
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  %indvars.iv = phi i64 [ %indvars.iv.next, %bb13 ], [ 0, %bb ]
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  %exitcond = icmp ne i64 %indvars.iv, 1024
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  br i1 %exitcond, label %bb2, label %bb14
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bb2:                                              ; preds = %bb1
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  %tmp = getelementptr inbounds float, ptr %A, i64 %indvars.iv
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  %tmp3 = load float, ptr %tmp, align 4
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  %tmp4 = add nsw i64 %indvars.iv, -1
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  %tmp5 = getelementptr inbounds float, ptr %A, i64 %tmp4
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  %tmp6 = load float, ptr %tmp5, align 4
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  %tmp7 = fcmp oeq float %tmp3, %tmp6
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  br i1 %tmp7, label %bb8, label %bb12
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bb8:                                              ; preds = %bb2
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  %tmp9 = getelementptr inbounds float, ptr %A, i64 %indvars.iv
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  %tmp10 = load float, ptr %tmp9, align 4
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  %tmp11 = fadd float %tmp10, 1.000000e+00
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  store float %tmp11, ptr %tmp9, align 4
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  br label %bb12
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bb12:                                             ; preds = %bb8, %bb2
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  br label %bb13
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bb13:                                             ; preds = %bb12
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  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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  br label %bb1
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bb14:                                             ; preds = %bb1
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  ret void
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}
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