diff options
Diffstat (limited to 'gcc/builtins.c')
| -rw-r--r-- | gcc/builtins.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index 806dd0dc5d2..eb117ceecfe 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -639,7 +639,7 @@ void expand_builtin_longjmp (buf_addr, value) rtx buf_addr, value; { - rtx fp, lab, stack, insn; + rtx fp, lab, stack, insn, last; enum machine_mode sa_mode = STACK_SAVEAREA_MODE (SAVE_NONLOCAL); if (setjmp_alias_set == -1) @@ -662,6 +662,7 @@ expand_builtin_longjmp (buf_addr, value) current_function_calls_longjmp = 1; + last = get_last_insn (); #ifdef HAVE_builtin_longjmp if (HAVE_builtin_longjmp) emit_insn (gen_builtin_longjmp (buf_addr)); @@ -707,6 +708,8 @@ expand_builtin_longjmp (buf_addr, value) internal exception handling use only. */ for (insn = get_last_insn (); insn; insn = PREV_INSN (insn)) { + if (insn == last) + abort (); if (GET_CODE (insn) == JUMP_INSN) { REG_NOTES (insn) = alloc_EXPR_LIST (REG_NON_LOCAL_GOTO, const0_rtx, |
