--- /dev/null
+; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
+; RUN: opt %loadPolly -polly-codegen -S < %s | FileCheck %s --check-prefix=IR
+;
+; Check that we do not crash and generate valid IR.
+;
+; CHECK: Assumed Context:
+; CHECK-NEXT: [count1, dobreak, count2] -> { : }
+; CHECK-NEXT: Invalid Context:
+; CHECK-NEXT: [count1, dobreak, count2] -> { : count1 <= 0 or (count1 > 0 and dobreak > 0) or (count1 > 0 and dobreak <= 0 and count2 > 0) }
+;
+; CHECK: Stmt_loop_enter
+; CHECK-NEXT: Domain :=
+; CHECK-NEXT: [count1, dobreak, count2] -> { Stmt_loop_enter[] : count1 > 0 };
+
+; CHECK: Stmt_loop_break
+; CHECK-NEXT: Domain :=
+; CHECK-NEXT: [count1, dobreak, count2] -> { Stmt_loop_break[] : count1 > 0 and dobreak > 0 };
+
+; CHECK: Stmt_loop_finish
+; CHECK-NEXT: Domain :=
+; CHECK-NEXT: [count1, dobreak, count2] -> { Stmt_loop_finish[] : count1 > 0 and dobreak <= 0 and count2 > 0 };
+
+; CHECK: Stmt_loop_skip
+; CHECK-NEXT: Domain :=
+; CHECK-NEXT: [count1, dobreak, count2] -> { Stmt_loop_skip[] : count1 <= 0 };
+
+; IR: polly.merge_new_and_old:
+; IR-NEXT: %phi.ph.merge = phi float [ %phi.ph.final_reload, %polly.exiting ], [ %phi.ph, %return.region_exiting ]
+; IR-NEXT: br label %return
+;
+; IR: return:
+; IR-NEXT: %phi = phi float [ %phi.ph.merge, %polly.merge_new_and_old ]
+
+declare void @g();
+
+define void @func(i64 %count1, i64 %count2, i32 %dobreak, float* %A) {
+entry:
+ %fadd = fadd float undef, undef
+ br label %loopguard
+
+loopguard:
+ %cmp6 = icmp sgt i64 %count1, 0
+ br i1 %cmp6, label %loop_enter, label %loop_skip
+
+
+loop_enter:
+ store float 1.0, float* %A
+ br label %loop_header
+
+loop_header:
+ %indvars.iv63 = phi i64 [ %indvars.iv.next64, %loop_continue ], [ 0, %loop_enter ]
+ %indvars.iv.next64 = add nuw nsw i64 %indvars.iv63, 1
+ %add8 = add i64 undef, undef
+ %cmp_break = icmp sge i32 %dobreak, 1
+ br i1 %cmp_break, label %loop_break, label %loop_continue
+
+loop_continue:
+ %cmp9 = icmp eq i64 %indvars.iv.next64, %count2
+ br i1 %cmp9, label %loop_finish, label %loop_header
+
+
+loop_break:
+ store float 2.0, float* %A
+ br label %loop_break_error
+
+loop_break_error:
+ %cmp_loop_break = fcmp oeq float %fadd, 2.
+ br i1 %cmp_loop_break, label %loop_break_g, label %return
+
+loop_break_g:
+ call void @g()
+ br label %return
+
+
+loop_finish:
+ store float 3.0, float* %A
+ br label %loop_finish_error
+
+loop_finish_error:
+ call void @g()
+ br label %return
+
+
+loop_skip:
+ store float 4.0, float* %A
+ br label %loop_skip_error
+
+loop_skip_error:
+ call void @g()
+ br label %return
+
+
+return:
+ %phi = phi float [ 0.0, %loop_finish_error ], [ 0.0, %loop_break_error ], [ 2.0, %loop_break_g ], [ 3.0, %loop_skip_error ]
+ store float 1.0, float* %A
+ ret void
+}