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[arm] Make 'auto' the default FPU selection option.

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Finally, we can make 'auto' the default choice for the FPU option.  It's
still possible to override this during configure, but we will eventually
deprecate that, moving to the new cpu/architecture selection mechanism.

	* config/arm/arm.h (FPUTYPE_AUTO): Define.
	* config/arm/arm.c (arm_option_override): Use FPUTYPE_AUTO if the
	fpu is not specified by the user/command-line.
	* config/arm/bpabi.h (FPUTYPE_DEFAULT): Delete.
	* config/arm/netbsd-elf.h (FPUTYPE_DEFAULT): Delete.
	* config/arm/linux-elf.h (FPUTYPE_DEFAULT): Delete.
	* config/arm/vxworks.h (FPUTYPE_DEFAULT): Delete.
	* common/config/arm/arm-common.c (arm_canon_arch_option): Use
	FPUTYPE_AUTO insted of FPUTYPE_DEFAULT.

From-SVN: r249295
This commit is contained in:
Richard Earnshaw 2017-06-16 21:04:23 +00:00 • committed by Richard Earnshaw
parent aaf8008ce7
commit 1138961024
8 changed files with 17 additions and 22 deletions
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12
gcc/ChangeLog
View file

@ -1,3 +1,15 @@
2017-06-16 Richard Earnshaw <rearnsha@arm.com>
* config/arm/arm.h (FPUTYPE_AUTO): Define.
* config/arm/arm.c (arm_option_override): Use FPUTYPE_AUTO if the
fpu is not specified by the user/command-line.
* config/arm/bpabi.h (FPUTYPE_DEFAULT): Delete.
* config/arm/netbsd-elf.h (FPUTYPE_DEFAULT): Delete.
* config/arm/linux-elf.h (FPUTYPE_DEFAULT): Delete.
* config/arm/vxworks.h (FPUTYPE_DEFAULT): Delete.
* common/config/arm/arm-common.c (arm_canon_arch_option): Use
FPUTYPE_AUTO insted of FPUTYPE_DEFAULT.
2017-06-16 Richard Earnshaw <rearnsha@arm.com>
* config/arm/elf.h (MULTILIB_DEFAULTS): Delete.

2
gcc/common/config/arm/arm-common.c
View file

@ -520,7 +520,7 @@ arm_canon_arch_option (int argc, const char **argv)
gcc_assert (cpu || arch);
if (!fpu)
fpu = FPUTYPE_DEFAULT;
fpu = FPUTYPE_AUTO;
if (!abi)
{

9
gcc/config/arm/arm.c
View file

@ -3298,17 +3298,10 @@ arm_option_override (void)
if (!global_options_set.x_arm_fpu_index)
{
const char *target_fpu_name;
bool ok;
int fpu_index;
#ifdef FPUTYPE_DEFAULT
target_fpu_name = FPUTYPE_DEFAULT;
#else
target_fpu_name = "vfp";
#endif
ok = opt_enum_arg_to_value (OPT_mfpu_, target_fpu_name, &fpu_index,
ok = opt_enum_arg_to_value (OPT_mfpu_, FPUTYPE_AUTO, &fpu_index,
CL_TARGET);
gcc_assert (ok);
arm_fpu_index = (enum fpu_type) fpu_index;

3
gcc/config/arm/arm.h
View file

@ -2220,6 +2220,9 @@ extern int making_const_table;
(TARGET_NEON ? (TARGET_ARM_FP & (0xff ^ 0x08)) \
: 0)
/* Name of the automatic fpu-selection option. */
#define FPUTYPE_AUTO "auto"
/* The maximum number of parallel loads or stores we support in an ldm/stm
instruction. */
#define MAX_LDM_STM_OPS 4

4
gcc/config/arm/bpabi.h
View file

@ -33,10 +33,6 @@
#undef ARM_UNWIND_INFO
#define ARM_UNWIND_INFO 1
/* Section 4.1 of the AAPCS requires the use of VFP format. */
#undef FPUTYPE_DEFAULT
#define FPUTYPE_DEFAULT "vfp"
/* TARGET_BIG_ENDIAN_DEFAULT is set in
config.gcc for big endian configurations. */
#if TARGET_BIG_ENDIAN_DEFAULT

3
gcc/config/arm/linux-elf.h
View file

@ -83,9 +83,6 @@
} \
while (0)
#undef FPUTYPE_DEFAULT
#define FPUTYPE_DEFAULT "vfp"
/* Call the function profiler with a given profile label. */
#undef ARM_FUNCTION_PROFILER
#define ARM_FUNCTION_PROFILER(STREAM, LABELNO) \

4
gcc/config/arm/netbsd-elf.h
View file

@ -153,7 +153,3 @@ do \
(void) sysarch (0, &s); \
} \
while (0)
#undef FPUTYPE_DEFAULT
#define FPUTYPE_DEFAULT "vfp"

2
gcc/config/arm/vxworks.h
View file

@ -92,8 +92,6 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
/* There is no default multilib. */
#undef MULTILIB_DEFAULTS
#define FPUTYPE_DEFAULT "vfp"
#undef FUNCTION_PROFILER
#define FUNCTION_PROFILER VXWORKS_FUNCTION_PROFILER