Backport 64-bit built-in atomic functions for ARM to GCC 4.6

    r179983 | rsandifo | 2011-10-14 22:39:32 +0800 (Fri, 14 Oct 2011) | 12 lines
    2011-10-14  David Alan Gilbert  <david.gilbert@linaro.org>

	* gcc.dg/di-longlong64-sync-1.c: New test.
	* gcc.dg/di-sync-multithread.c: New test.
	* gcc.target/arm/di-longlong64-sync-withhelpers.c: New test.
	* gcc.target/arm/di-longlong64-sync-withldrexd.c: New test.
	* lib/target-supports.exp: (arm_arch_*_ok): Series of effective-target
	tests for v5, v6, v6k, and v7-a, and add-options helpers.
	(check_effective_target_arm_arm_ok): New helper.
	(check_effective_target_sync_longlong): New helper.

    r179982 | rsandifo | 2011-10-14 22:39:10 +0800 (Fri, 14 Oct 2011) | 8 lines
    2011-10-14  David Alan Gilbert  <david.gilbert@linaro.org>

        * config/arm/linux-atomic-64bit.c: New (based on linux-atomic.c).
        * config/arm/linux-atomic.c: Change comment to point to 64bit version.
        (SYNC_LOCK_RELEASE): Instantiate 64bit version.
        * config/arm/t-linux-eabi: Pull in linux-atomic-64bit.c.

    r179981 | rsandifo | 2011-10-14 22:38:58 +0800 (Fri, 14 Oct 2011) | 44 lines
    2011-10-14  David Alan Gilbert  <david.gilbert@linaro.org>

	* config/arm/arm.c (arm_output_ldrex): Support ldrexd.
	(arm_output_strex): Support strexd.
	(arm_output_it): New helper to output it in Thumb2 mode only.
	(arm_output_sync_loop): Support DI mode.  Change comment to
	not support const_int.
	(arm_expand_sync): Support DI mode.
	* config/arm/arm.h (TARGET_HAVE_LDREXBHD): Split into LDREXBH
	and LDREXD.
	* config/arm/iterators.md (NARROW): move from sync.md.
	(QHSD): New iterator for all current ARM integer modes.
	(SIDI): New iterator for SI and DI modes only.
	* config/arm/sync.md (sync_predtab): New mode_attr.
	(sync_compare_and_swapsi): Fold into sync_compare_and_swap<mode>.
	(sync_lock_test_and_setsi): Fold into sync_lock_test_and_setsi<mode>.
	(sync_<sync_optab>si): Fold into sync_<sync_optab><mode>.
	(sync_nandsi): Fold into sync_nand<mode>.
	(sync_new_<sync_optab>si): Fold into sync_new_<sync_optab><mode>.
	(sync_new_nandsi): Fold into sync_new_nand<mode>.
	(sync_old_<sync_optab>si): Fold into sync_old_<sync_optab><mode>.
	(sync_old_nandsi): Fold into sync_old_nand<mode>.
	(sync_compare_and_swap<mode>): Support SI & DI.
	(sync_lock_test_and_set<mode>): Likewise.
	(sync_<sync_optab><mode>): Likewise.
	(sync_nand<mode>): Likewise.
	(sync_new_<sync_optab><mode>): Likewise.
	(sync_new_nand<mode>): Likewise.
	(sync_old_<sync_optab><mode>): Likewise.
	(sync_old_nand<mode>): Likewise.
	(arm_sync_compare_and_swapsi): Turn into iterator on SI & DI.
	(arm_sync_lock_test_and_setsi): Likewise.
	(arm_sync_new_<sync_optab>si): Likewise.
	(arm_sync_new_nandsi): Likewise.
	(arm_sync_old_<sync_optab>si): Likewise.
	(arm_sync_old_nandsi): Likewise.
	(arm_sync_compare_and_swap<mode> NARROW): use sync_predtab, fix indent.
	(arm_sync_lock_test_and_setsi<mode> NARROW): Likewise.
	(arm_sync_new_<sync_optab><mode> NARROW): Likewise.
	(arm_sync_new_nand<mode> NARROW): Likewise.
	(arm_sync_old_<sync_optab><mode> NARROW): Likewise.
	(arm_sync_old_nand<mode> NARROW): Likewise.

    r179980 | rsandifo | 2011-10-14 22:38:42 +0800 (Fri, 14 Oct 2011) | 6 lines
    2011-10-14  David Alan Gilbert  <david.gilbert@linaro.org>

	PR target/48126
	* config/arm/arm.c (arm_output_sync_loop): Move label before barrier.

    r179979 | rsandifo | 2011-10-14 22:38:30 +0800 (Fri, 14 Oct 2011) | 5 lines
    2011-10-14  David Alan Gilbert  <david.gilbert@linaro.org>

	* config/arm/arm.h (TARGET_HAVE_DMB_MCR): MCR Not available in Thumb1.

Change-Id: Ic27fcf0b49e835cefdafb24fbba2f6023059d2b3

0 files changed, 0 insertions, 0 deletions