[COMMITTED] gcc: xtensa: disable late-combine by default

[Max Filippov]

gcc/
        * config/xtensa/xtensa.cc (xtensa_option_override_after_change):
        New function.
        (TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE): Define as
        xtensa_option_override_after_change.
        (xtensa_option_override): Call
        xtensa_option_override_after_change.
---
 gcc/config/xtensa/xtensa.cc | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/gcc/config/xtensa/xtensa.cc b/gcc/config/xtensa/xtensa.cc
index d49d224466ad..10d964b51a96 100644
--- a/gcc/config/xtensa/xtensa.cc
+++ b/gcc/config/xtensa/xtensa.cc
@@ -114,6 +114,7 @@ struct GTY(()) machine_function
 };
 
 static void xtensa_option_override (void);
+static void xtensa_option_override_after_change (void);
 static enum internal_test map_test_to_internal_test (enum rtx_code);
 static rtx gen_int_relational (enum rtx_code, rtx, rtx);
 static rtx gen_float_relational (enum rtx_code, rtx, rtx);
@@ -303,6 +304,9 @@ static rtx xtensa_delegitimize_address (rtx);
 #undef TARGET_OPTION_OVERRIDE
 #define TARGET_OPTION_OVERRIDE xtensa_option_override
 
+#undef TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE
+#define TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE 
xtensa_option_override_after_change
+
 #undef TARGET_ASM_OUTPUT_ADDR_CONST_EXTRA
 #define TARGET_ASM_OUTPUT_ADDR_CONST_EXTRA xtensa_output_addr_const_extra
 
@@ -2988,6 +2992,15 @@ xtensa_option_override (void)
      the define_insn_and_splits are fixed.  */
   if (!OPTION_SET_P (flag_late_combine_instructions))
     flag_late_combine_instructions = 0;
+
+  xtensa_option_override_after_change ();
+}
+
+static void
+xtensa_option_override_after_change (void)
+{
+  if (!OPTION_SET_P (flag_late_combine_instructions))
+    flag_late_combine_instructions = 0;
 }
 
 /* Implement TARGET_HARD_REGNO_NREGS.  */
-- 
2.39.2