--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/polly/test/ScopInfo/switch-6.ll	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,141 @@
+; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
+; RUN: opt %loadPolly -polly-ast -analyze < %s | FileCheck %s --check-prefix=AST
+;
+;    void f(int *A, int N) {
+;      for (int i = 0; i < N; i++) {
+;        switch (i) {
+;        case 0:
+;          A[i] += 1;
+;          break;
+;        case 1:
+;          A[i] += 2;
+;          break;
+;        case 2:
+;          A[i] += 3;
+;          break;
+;        case 3:
+;          A[i] += 4;
+;          break;
+;        default:;
+;        }
+;      }
+;    }
+
+; CHECK:      Statements {
+; CHECK-NEXT:     Stmt_sw_bb
+; CHECK-NEXT:         Domain :=
+; CHECK-NEXT:             [N] -> { Stmt_sw_bb[0] : N > 0 };
+; CHECK-NEXT:         Schedule :=
+; CHECK-NEXT:             [N] -> { Stmt_sw_bb[i0] -> [0, 3] };
+; CHECK-NEXT:         ReadAccess :=    [Reduction Type: +] [Scalar: 0]
+; CHECK-NEXT:             [N] -> { Stmt_sw_bb[i0] -> MemRef_A[0] };
+; CHECK-NEXT:         MustWriteAccess :=    [Reduction Type: +] [Scalar: 0]
+; CHECK-NEXT:             [N] -> { Stmt_sw_bb[i0] -> MemRef_A[0] };
+; CHECK-NEXT:     Stmt_sw_bb_1
+; CHECK-NEXT:         Domain :=
+; CHECK-NEXT:             [N] -> { Stmt_sw_bb_1[1] : N >= 2 };
+; CHECK-NEXT:         Schedule :=
+; CHECK-NEXT:             [N] -> { Stmt_sw_bb_1[i0] -> [1, 2] };
+; CHECK-NEXT:         ReadAccess :=    [Reduction Type: +] [Scalar: 0]
+; CHECK-NEXT:             [N] -> { Stmt_sw_bb_1[i0] -> MemRef_A[1] };
+; CHECK-NEXT:         MustWriteAccess :=    [Reduction Type: +] [Scalar: 0]
+; CHECK-NEXT:             [N] -> { Stmt_sw_bb_1[i0] -> MemRef_A[1] };
+; CHECK-NEXT:     Stmt_sw_bb_5
+; CHECK-NEXT:         Domain :=
+; CHECK-NEXT:             [N] -> { Stmt_sw_bb_5[2] : N >= 3 };
+; CHECK-NEXT:         Schedule :=
+; CHECK-NEXT:             [N] -> { Stmt_sw_bb_5[i0] -> [2, 1] };
+; CHECK-NEXT:         ReadAccess :=    [Reduction Type: +] [Scalar: 0]
+; CHECK-NEXT:             [N] -> { Stmt_sw_bb_5[i0] -> MemRef_A[2] };
+; CHECK-NEXT:         MustWriteAccess :=    [Reduction Type: +] [Scalar: 0]
+; CHECK-NEXT:             [N] -> { Stmt_sw_bb_5[i0] -> MemRef_A[2] };
+; CHECK-NEXT:     Stmt_sw_bb_9
+; CHECK-NEXT:         Domain :=
+; CHECK-NEXT:             [N] -> { Stmt_sw_bb_9[3] : N >= 4 };
+; CHECK-NEXT:         Schedule :=
+; CHECK-NEXT:             [N] -> { Stmt_sw_bb_9[i0] -> [3, 0] };
+; CHECK-NEXT:         ReadAccess :=    [Reduction Type: +] [Scalar: 0]
+; CHECK-NEXT:             [N] -> { Stmt_sw_bb_9[i0] -> MemRef_A[3] };
+; CHECK-NEXT:         MustWriteAccess :=    [Reduction Type: +] [Scalar: 0]
+; CHECK-NEXT:             [N] -> { Stmt_sw_bb_9[i0] -> MemRef_A[3] };
+; CHECK-NEXT: }
+
+; AST:      if (1)
+;
+; AST:          if (N >= 1) {
+; AST-NEXT:       Stmt_sw_bb(0);
+; AST-NEXT:       if (N >= 2) {
+; AST-NEXT:         Stmt_sw_bb_1(1);
+; AST-NEXT:         if (N >= 3) {
+; AST-NEXT:           Stmt_sw_bb_5(2);
+; AST-NEXT:           if (N >= 4)
+; AST-NEXT:             Stmt_sw_bb_9(3);
+; AST-NEXT:         }
+; AST-NEXT:       }
+; AST-NEXT:     }
+;
+; AST:      else
+; AST-NEXT:     {  /* original code */ }
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+
+define void @f(i32* %A, i32 %N) {
+entry:
+  %tmp = sext i32 %N to i64
+  br label %for.cond
+
+for.cond:                                         ; preds = %for.inc, %entry
+  %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
+  %cmp = icmp slt i64 %indvars.iv, %tmp
+  br i1 %cmp, label %for.body, label %for.end
+
+for.body:                                         ; preds = %for.cond
+  %tmp1 = trunc i64 %indvars.iv to i32
+  switch i32 %tmp1, label %sw.default [
+    i32 0, label %sw.bb
+    i32 1, label %sw.bb.1
+    i32 2, label %sw.bb.5
+    i32 3, label %sw.bb.9
+  ]
+
+sw.bb:                                            ; preds = %for.body
+  %arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
+  %tmp2 = load i32, i32* %arrayidx, align 4
+  %add = add nsw i32 %tmp2, 1
+  store i32 %add, i32* %arrayidx, align 4
+  br label %sw.epilog
+
+sw.bb.1:                                          ; preds = %for.body
+  %arrayidx3 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
+  %tmp3 = load i32, i32* %arrayidx3, align 4
+  %add4 = add nsw i32 %tmp3, 2
+  store i32 %add4, i32* %arrayidx3, align 4
+  br label %sw.epilog
+
+sw.bb.5:                                          ; preds = %for.body
+  %arrayidx7 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
+  %tmp4 = load i32, i32* %arrayidx7, align 4
+  %add8 = add nsw i32 %tmp4, 3
+  store i32 %add8, i32* %arrayidx7, align 4
+  br label %sw.epilog
+
+sw.bb.9:                                          ; preds = %for.body
+  %arrayidx11 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
+  %tmp5 = load i32, i32* %arrayidx11, align 4
+  %add12 = add nsw i32 %tmp5, 4
+  store i32 %add12, i32* %arrayidx11, align 4
+  br label %sw.epilog
+
+sw.default:                                       ; preds = %for.body
+  br label %sw.epilog
+
+sw.epilog:                                        ; preds = %sw.default, %sw.bb.9, %sw.bb.5, %sw.bb.1, %sw.bb
+  br label %for.inc
+
+for.inc:                                          ; preds = %sw.epilog
+  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
+  br label %for.cond
+
+for.end:                                          ; preds = %for.cond
+  ret void
+}