diff options
| -rw-r--r-- | gcc/sched.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/sched.c b/gcc/sched.c index 93bd06c..7df147a 100644 --- a/gcc/sched.c +++ b/gcc/sched.c @@ -1610,6 +1610,14 @@ sched_analyze_1 (x, insn) add_dependence (insn, reg_last_sets[regno], REG_DEP_OUTPUT); reg_last_sets[regno] = insn; + /* Pseudos that are REG_EQUIV to something may be replaced + by that during reloading, so we can potentially read + quantities mentioned in those addresses. */ + if (! reload_completed) + if (reg_known_value[regno] != regno_reg_rtx[regno]) + if (GET_CODE (reg_known_value[regno]) == MEM) + sched_analyze_2 (XEXP (reg_known_value[regno], 0), insn); + /* Don't let it cross a call after scheduling if it doesn't already cross one. */ if (reg_n_calls_crossed[regno] == 0 && last_function_call) @@ -1762,6 +1770,12 @@ sched_analyze_2 (x, insn) if (reg_last_sets[regno]) add_dependence (insn, reg_last_sets[regno], 0); + /* Pseudos that are REG_EQUIV to something may be replaced + by that, so we depend on anything mentioned there too. */ + if (! reload_completed) + if (reg_known_value[regno] != regno_reg_rtx[regno]) + sched_analyze_2 (reg_known_value[regno], insn); + /* If the register does not already cross any calls, then add this insn to the sched_before_next_call list so that it will still not cross calls after scheduling. */ |