1; RUN: opt < %s -dfsan -verify -dfsan-args-abi -S | FileCheck %s 2target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" 3target triple = "x86_64-unknown-linux-gnu" 4 5; CHECK-LABEL: @"dfs$unreachable_bb1" 6define i8 @unreachable_bb1() { 7 ; CHECK: ret { i8, i16 } { i8 1, i16 0 } 8 ; CHECK-NOT: bb2: 9 ; CHECK-NOT: bb3: 10 ; CHECK-NOT: bb4: 11 ret i8 1 12 13bb2: 14 ret i8 2 15 16bb3: 17 br label %bb4 18 19bb4: 20 br label %bb3 21} 22 23declare void @abort() noreturn 24 25; CHECK-LABEL: @"dfs$unreachable_bb2" 26define i8 @unreachable_bb2() { 27 call void @abort() noreturn 28 ; CHECK-NOT: i8 12 29 ; CHECK: unreachable 30 ret i8 12 31} 32