llvm/test/Instrumentation/SanitizerCoverage/abort-in-entry-block.ll

   1 ; Checks that a function with no-return in the entry block is not instrumented.
   2 ; RUN: opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=3 -sanitizer-coverage-trace-pc-guard -S | FileCheck %s
   3 ; CHECK-NOT: call void @__sanitizer_cov_trace_pc_guard
   4
   5 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
   6 target triple = "x86_64-unknown-linux-gnu"
   7
   8 define dso_local void @_Z3foov() noinline nounwind optnone uwtable {
   9 entry:
  10   call void @abort() noreturn nounwind
  11   unreachable
  12
  13 return:                                           ; No predecessors!
  14   ret void
  15 }
  16
  17 declare dso_local void @abort() noreturn nounwind