diff options
Diffstat (limited to 'gcc/dce.c')
| -rw-r--r-- | gcc/dce.c | 9 |
1 files changed, 7 insertions, 2 deletions
@@ -108,7 +108,10 @@ deletable_insn_p (rtx_insn *insn, bool fast, bitmap arg_stores) /* We can delete dead const or pure calls as long as they do not infinite loop. */ && (RTL_CONST_OR_PURE_CALL_P (insn) - && !RTL_LOOPING_CONST_OR_PURE_CALL_P (insn))) + && !RTL_LOOPING_CONST_OR_PURE_CALL_P (insn)) + /* Don't delete calls that may throw if we cannot do so. */ + && ((cfun->can_delete_dead_exceptions && can_alter_cfg) + || insn_nothrow_p (insn))) return find_call_stack_args (as_a <rtx_call_insn *> (insn), false, fast, arg_stores); @@ -201,7 +204,9 @@ mark_insn (rtx_insn *insn, bool fast) && !df_in_progress && !SIBLING_CALL_P (insn) && (RTL_CONST_OR_PURE_CALL_P (insn) - && !RTL_LOOPING_CONST_OR_PURE_CALL_P (insn))) + && !RTL_LOOPING_CONST_OR_PURE_CALL_P (insn)) + && ((cfun->can_delete_dead_exceptions && can_alter_cfg) + || insn_nothrow_p (insn))) find_call_stack_args (as_a <rtx_call_insn *> (insn), true, fast, NULL); } } |