; RUN: llvm-reduce --abort-on-invalid-reduction --delta-passes=unreachable-basic-blocks,basic-blocks --test FileCheck --test-arg --check-prefixes=CHECK-INTERESTINGNESS --test-arg %s --test-arg --input-file %s -o %t ; RUN: FileCheck %s < %t ; CHECK-INTERESTINGNESS: store i32 0, ; CHECK-INTERESTINGNESS: store i32 1, ; CHECK: bb: ; CHECK-NEXT: %tmp = icmp eq i8 0, 0 ; CHECK-NEXT: %tmp12 = load i32, ; CHECK-NEXT: %tmp13 = load i32, ; CHECK-NEXT: br label %bb14 ; CHECK: bb14: ; CHECK-NEXT: switch i32 %tmp12, label %bb14 [ ; CHECK-NEXT: i32 2, label %bb14 ; CHECK-NEXT: i32 1, label %bb19 ; CHECK-NEXT: ] ; CHECK: bb19: ; CHECK-NEXT: switch i32 %tmp13, label %bb14 [ ; CHECK-NEXT: i32 2, label %bb21 ; CHECK-NEXT: i32 1, label %bb20 ; CHECK-NEXT: ] ; CHECK: bb20: ; CHECK-NEXT: store i32 0, ; CHECK-NEXT: br label %bb14 ; CHECK: bb21: ; CHECK-NEXT: store i32 1, ; CHECK-NEXT: br label %bb14 define void @snork() { bb: %tmp = icmp eq i8 0, 0 %tmp12 = load i32, ptr addrspace(4) inttoptr (i64 3016 to ptr addrspace(4)), align 8 %tmp13 = load i32, ptr addrspace(4) null, align 8 br label %bb14 bb14: ; preds = %bb21, %bb20, %bb19, %bb14, %bb switch i32 %tmp12, label %bb22 [ i32 2, label %bb14 i32 1, label %bb19 ] bb15: ; preds = %bb17 %tmp16 = fadd contract double %tmp18, 1.000000e+00 unreachable bb17: ; preds = %bb17 %tmp18 = fadd contract double 0.000000e+00, 0.000000e+00 br i1 false, label %bb15, label %bb17 bb19: ; preds = %bb14 switch i32 %tmp13, label %bb14 [ i32 2, label %bb21 i32 1, label %bb20 ] bb20: ; preds = %bb19 store i32 0, ptr addrspace(3) null, align 4 br label %bb14 bb21: ; preds = %bb19 store i32 1, ptr addrspace(3) null, align 4 br label %bb14 bb22: ; preds = %bb14 unreachable }