gcc/

	* expr.c (store_field): Avoid a direct store if the mode is larger
	than the size of the bit field.
	* stor-layout.c (layout_decl): If flag_strict_volatile_bitfields,
	treat non-volatile bit fields like volatile ones.
	* toplev.c (process_options): Disallow combination of
	-fstrict-volatile-bitfields and ABI versions less than 2.
	* config/arm/arm.c (arm_option_override): Don't enable
	flag_strict_volatile_bitfields if the ABI version is less than 2.
	* config/h8300/h8300.c (h8300_option_override): Likewise.
	* config/rx/rx.c (rx_option_override): Likewise.
	* config/m32c/m32c.c (m32c_option_override): Likewise.
	* config/sh/sh.c (sh_option_override): Likewise.

	gcc/testsuite/
	* gcc.target/arm/volatile-bitfields-4.c: New test.
	* c-c++-common/abi-bf.c: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@182545 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 1 insertions, 1 deletions

diff --git a/gcc/config/rx/rx.c b/gcc/config/rx/rx.c
index c9720eb3e15..4a73285b338 100644
--- a/gcc/config/rx/rx.c
+++ b/gcc/config/rx/rx.c
@@ -2571,7 +2571,7 @@ rx_option_override (void)
     }
 
   /* This target defaults to strict volatile bitfields.  */
-  if (flag_strict_volatile_bitfields < 0)
+  if (flag_strict_volatile_bitfields < 0 && abi_version_at_least(2))
     flag_strict_volatile_bitfields = 1;
 
   rx_override_options_after_change ();