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authorJoseph Myers <joseph@codesourcery.com>2015-11-04 21:34:36 +0000
committerJoseph Myers <joseph@codesourcery.com>2015-11-04 21:34:36 +0000
commit9f9f27248bf464b465fd4f05112a5b479503e83a (patch)
tree8d8626657682b3c7ad50a202a64b298ab4ee910d /sysdeps/arm/atomic-machine.h
parente3a0002094417b331993f46064924862b17811c0 (diff)
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Remove miscellaneous GCC >= 4.7 version conditionals.
This patch removes miscellaneous __GNUC_PREREQ (4, 7) conditionals
that are now dead.

Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).

	* sysdeps/arm/atomic-machine.h
	[__GNUC_PREREQ (4, 7) && __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4]:
	Change conditional to [__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4].
	[__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 && !__GNUC_PREREQ (4, 7)]:
	Remove conditional code.
	[!__GNUC_PREREQ (4, 7) || !__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4]:
	Change conditional to [!__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4].
	* sysdeps/i386/sysdep.h [__ASSEMBLER__ && __GNUC_PREREQ (4, 7)]:
	Change conditional to [__ASSEMBLER__].
	[__ASSEMBLER__ && !__GNUC_PREREQ (4, 7)]: Remove conditional code.
	[!__ASSEMBLER__ && __GNUC_PREREQ (4, 7)]: Change conditional to
	[!__ASSEMBLER__].
	[!__ASSEMBLER__ && !__GNUC_PREREQ (4, 7)]: Remove conditional
	code.
	* sysdeps/unix/sysv/linux/sh/atomic-machine.h (rNOSP): Remove
	conditional macro definitions.
	(__arch_compare_and_exchange_val_8_acq): Use "u" instead of rNOSP.
	(__arch_compare_and_exchange_val_16_acq): Likewise.
	(__arch_compare_and_exchange_val_32_acq): Likewise.
	(atomic_exchange_and_add): Likewise.
	(atomic_add): Likewise.
	(atomic_add_negative): Likewise.
	(atomic_add_zero): Likewise.
	(atomic_bit_set): Likewise.
	(atomic_bit_test_set): Likewise.
	* sysdeps/x86_64/atomic-machine.h [__GNUC_PREREQ (4, 7)]: Make
	code unconditional.
	[!__GNUC_PREREQ (4, 7)]: Remove conditional code.
Diffstat (limited to 'sysdeps/arm/atomic-machine.h')
-rw-r--r--sysdeps/arm/atomic-machine.h8
1 files changed, 2 insertions, 6 deletions
diff --git a/sysdeps/arm/atomic-machine.h b/sysdeps/arm/atomic-machine.h
index 2a89a73f5b..12551bc4db 100644
--- a/sysdeps/arm/atomic-machine.h
+++ b/sysdeps/arm/atomic-machine.h
@@ -53,7 +53,7 @@ void __arm_link_error (void);
 
 /* Use the atomic builtins provided by GCC in case the backend provides
    a pattern to do this efficiently.  */
-#if __GNUC_PREREQ (4, 7) && defined __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
+#ifdef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
 
 # define atomic_exchange_acq(mem, value)                                \
   __atomic_val_bysize (__arch_exchange, int, mem, value, __ATOMIC_ACQUIRE)
@@ -131,16 +131,12 @@ void __arm_link_error (void);
 # define __arch_compare_and_exchange_val_64_int(mem, newval, oldval, model) \
   ({__arm_link_error (); oldval; })
 
-#elif defined __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
-/* Atomic compare and exchange.  */
-# define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \
-  __sync_val_compare_and_swap ((mem), (oldval), (newval))
 #else
 # define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \
   __arm_assisted_compare_and_exchange_val_32_acq ((mem), (newval), (oldval))
 #endif
 
-#if !__GNUC_PREREQ (4, 7) || !defined (__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)
+#ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
 /* We don't support atomic operations on any non-word types.
    So make them link errors.  */
 # define __arch_compare_and_exchange_val_8_acq(mem, newval, oldval) \