Run DCE after a LoopFlatten test to reduce spurious output [nfc]
[llvm-project.git] / llvm / test / Instrumentation / DataFlowSanitizer / args-unreachable-bb.ll
blob0f8c078be5274a0b79a191a930e8322c77536ca1
1 ; RUN: opt < %s -passes=dfsan -S | FileCheck %s
2 target 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"
3 target triple = "x86_64-unknown-linux-gnu"
5 ; CHECK-LABEL: @unreachable_bb1.dfsan
6 define i8 @unreachable_bb1() {
7   ; CHECK: ret i8 1
8   ; CHECK-NOT: bb2:
9   ; CHECK-NOT: bb3:
10   ; CHECK-NOT: bb4:
11   ret i8 1
13 bb2:
14   ret i8 2
16 bb3:
17   br label %bb4
19 bb4:
20   br label %bb3
23 declare void @abort() noreturn
25 ; CHECK-LABEL: @unreachable_bb2.dfsan
26 define i8 @unreachable_bb2() {
27   call void @abort() noreturn
28   ; CHECK-NOT: i8 12
29   ; CHECK: unreachable
30   ret i8 12