diff options
Diffstat (limited to 'gcc/emit-rtl.c')
| -rw-r--r-- | gcc/emit-rtl.c | 33 |
1 files changed, 5 insertions, 28 deletions
diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index 3dd47992513..889064fd0f9 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -3021,34 +3021,11 @@ int active_insn_p (insn) rtx insn; { - if (GET_CODE (insn) == CALL_INSN || GET_CODE (insn) == JUMP_INSN) - return true; - if (GET_CODE (insn) == INSN) - { - if (reload_completed) - { - rtx pat = PATTERN (insn); - - /* After reload, remaining USE insns are noops. */ - if (GET_CODE (pat) == USE) - return false; - - if (GET_CODE (pat) == CLOBBER) - { - /* ??? Don't skip past the clobber of the return register. - If we eliminate it, we risk a variety of life analysis - problems on broken code. */ - if (GET_CODE (XEXP (pat, 0)) == REG - && REG_FUNCTION_VALUE_P (XEXP (pat, 0))) - return true; - - /* Otherwise, clobbers don't do anything either. */ - return false; - } - } - return true; - } - return false; + return (GET_CODE (insn) == CALL_INSN || GET_CODE (insn) == JUMP_INSN + || (GET_CODE (insn) == INSN + && (! reload_completed + || (GET_CODE (PATTERN (insn)) != USE + && GET_CODE (PATTERN (insn)) != CLOBBER)))); } rtx |