ret void
}
+define i32 @test_duplicate_successors_phi(i1 %c, i32 %x) {
+; CHECK-LABEL: @test_duplicate_successors_phi(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: br i1 [[C:%.*]], label [[SWITCH:%.*]], label [[END:%.*]]
+; CHECK: switch:
+; CHECK-NEXT: switch i32 -1, label [[SWITCH_DEFAULT:%.*]] [
+; CHECK-NEXT: i32 0, label [[END]]
+; CHECK-NEXT: i32 1, label [[END]]
+; CHECK-NEXT: ]
+; CHECK: switch.default:
+; CHECK-NEXT: ret i32 -1
+; CHECK: end:
+; CHECK-NEXT: [[PHI:%.*]] = phi i32 [ [[X:%.*]], [[ENTRY:%.*]] ], [ 1, [[SWITCH]] ], [ 1, [[SWITCH]] ]
+; CHECK-NEXT: ret i32 [[PHI]]
+;
+entry:
+ br i1 %c, label %switch, label %end
+
+switch:
+ switch i32 -1, label %switch.default [
+ i32 0, label %end
+ i32 1, label %end
+ ]
+
+switch.default:
+ ret i32 -1
+
+end:
+ %phi = phi i32 [ %x, %entry ], [ 1, %switch ], [ 1, %switch ]
+ ret i32 %phi
+}
+
define i32 @test_local_range(i32 %x) {
; CHECK-LABEL: @test_local_range(
; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[X:%.*]], 3