llvm/test/CodeGen/X86/cfi-inserter-noreturnblock.mir

# RUN: llc -o - %s -mtriple=x86_64-- -verify-cfiinstrs \
# RUN:     -run-pass=cfi-instr-inserter

# Test that CFI verifier does not report inconsistent offset for the
# 'noreturn' block.
---
name: testNoreturnBlock
body: |
  bb.0:
    CFI_INSTRUCTION def_cfa_offset 24
    JCC_1 %bb.2, 5, implicit undef $eflags

  bb.1:
    CFI_INSTRUCTION def_cfa_offset 32

  bb.2:
    TRAP
...

# C code to reproduce the issue, built with
# '-O2 -mllvm -tail-merge-size=1 -mllvm -verify-cfiinstrs':
#
# void foo1(int v) __attribute__((noreturn)) {
#   if (v == 1) {
#     __builtin_trap();
#   }
#   if (foo2(v)) {
#     __builtin_trap();
#   }
# }