+2011-05-18 Joseph Myers <joseph@codesourcery.com>
+
+ * config/arm/arm-opts.h (enum arm_fp16_format_type, enum
+ arm_abi_type, enum float_abi_type, enum arm_tp_type): Move from
+ arm.h.
+ * config/arm/arm.c (arm_float_abi, arm_fp16_format, arm_abi,
+ target_thread_pointer, arm_structure_size_boundary, struct
+ float_abi, all_float_abis, struct fp16_format, all_fp16_formats,
+ struct abi_name, arm_all_abis): Remove.
+ (arm_option_override) Don't process most enumerated option values
+ here. Don't process target_fpe_name here. Work with integer not
+ string for structure size boundary; use separate diagnostics for
+ each case.
+ * config/arm/arm.h (enum float_abi_type, enum
+ arm_fp16_format_type, enum arm_abi_type, enum arm_tp_type): Move
+ to arm-opts.h.
+ (arm_float_abi, arm_fp16_format, arm_abi, target_thread_pointer,
+ arm_structure_size_boundary): Remove.
+ * config/arm/arm.opt (mabi=): Use Enum and Init.
+ (arm_abi_type): New Enum and EnumValue entries.
+ (mfloat-abi=): Use Enum and Init.
+ (float_abi_type): New Enum and EnumValue entries.
+ (mfp=, mfpe=): Replace by separate Alias entries for each
+ argument.
+ (mfp16-format=): Use Enum and Init.
+ (arm_fp16_format_type): New Enum and EnumValue entries.
+ (mstructure-size-boundary=): Use UInteger and Init.
+ (mtp=): Use Enum and Init.
+ (arm_tp_type): New Enum and EnumValue entries.
+
2011-05-18 Richard Guenther <rguenther@suse.de>
PR tree-optimization/49018
arm_none
};
+/* Which __fp16 format to use.
+ The enumeration values correspond to the numbering for the
+ Tag_ABI_FP_16bit_format attribute.
+ */
+enum arm_fp16_format_type
+{
+ ARM_FP16_FORMAT_NONE = 0,
+ ARM_FP16_FORMAT_IEEE = 1,
+ ARM_FP16_FORMAT_ALTERNATIVE = 2
+};
+
+/* Which ABI to use. */
+enum arm_abi_type
+{
+ ARM_ABI_APCS,
+ ARM_ABI_ATPCS,
+ ARM_ABI_AAPCS,
+ ARM_ABI_IWMMXT,
+ ARM_ABI_AAPCS_LINUX
+};
+
+enum float_abi_type
+{
+ ARM_FLOAT_ABI_SOFT,
+ ARM_FLOAT_ABI_SOFTFP,
+ ARM_FLOAT_ABI_HARD
+};
+
+/* Which thread pointer access sequence to use. */
+enum arm_tp_type {
+ TP_AUTO,
+ TP_SOFT,
+ TP_CP15
+};
+
#endif
/* Which floating popint hardware to use. */
const struct arm_fpu_desc *arm_fpu_desc;
-/* Whether to use floating point hardware. */
-enum float_abi_type arm_float_abi;
-
-/* Which __fp16 format to use. */
-enum arm_fp16_format_type arm_fp16_format;
-
-/* Which ABI to use. */
-enum arm_abi_type arm_abi;
-
-/* Which thread pointer model to use. */
-enum arm_tp_type target_thread_pointer = TP_AUTO;
-
-/* Used to parse -mstructure_size_boundary command line option. */
-int arm_structure_size_boundary = DEFAULT_STRUCTURE_SIZE_BOUNDARY;
-
/* Used for Thumb call_via trampolines. */
rtx thumb_call_via_label[14];
static int thumb_call_reg_needed;
};
-struct float_abi
-{
- const char * name;
- enum float_abi_type abi_type;
-};
-
-
-/* Available values for -mfloat-abi=. */
-
-static const struct float_abi all_float_abis[] =
-{
- {"soft", ARM_FLOAT_ABI_SOFT},
- {"softfp", ARM_FLOAT_ABI_SOFTFP},
- {"hard", ARM_FLOAT_ABI_HARD}
-};
-
-
-struct fp16_format
-{
- const char *name;
- enum arm_fp16_format_type fp16_format_type;
-};
-
-
-/* Available values for -mfp16-format=. */
-
-static const struct fp16_format all_fp16_formats[] =
-{
- {"none", ARM_FP16_FORMAT_NONE},
- {"ieee", ARM_FP16_FORMAT_IEEE},
- {"alternative", ARM_FP16_FORMAT_ALTERNATIVE}
-};
-
-
-struct abi_name
-{
- const char *name;
- enum arm_abi_type abi_type;
-};
-
-
-/* Available values for -mabi=. */
-
-static const struct abi_name arm_all_abis[] =
-{
- {"apcs-gnu", ARM_ABI_APCS},
- {"atpcs", ARM_ABI_ATPCS},
- {"aapcs", ARM_ABI_AAPCS},
- {"iwmmxt", ARM_ABI_IWMMXT},
- {"aapcs-linux", ARM_ABI_AAPCS_LINUX}
-};
-
/* Supported TLS relocations. */
enum tls_reloc {
tune_flags = arm_selected_tune->flags;
current_tune = arm_selected_tune->tune;
- if (target_fp16_format_name)
- {
- for (i = 0; i < ARRAY_SIZE (all_fp16_formats); i++)
- {
- if (streq (all_fp16_formats[i].name, target_fp16_format_name))
- {
- arm_fp16_format = all_fp16_formats[i].fp16_format_type;
- break;
- }
- }
- if (i == ARRAY_SIZE (all_fp16_formats))
- error ("invalid __fp16 format option: -mfp16-format=%s",
- target_fp16_format_name);
- }
- else
- arm_fp16_format = ARM_FP16_FORMAT_NONE;
-
- if (target_abi_name)
- {
- for (i = 0; i < ARRAY_SIZE (arm_all_abis); i++)
- {
- if (streq (arm_all_abis[i].name, target_abi_name))
- {
- arm_abi = arm_all_abis[i].abi_type;
- break;
- }
- }
- if (i == ARRAY_SIZE (arm_all_abis))
- error ("invalid ABI option: -mabi=%s", target_abi_name);
- }
- else
- arm_abi = ARM_DEFAULT_ABI;
-
/* Make sure that the processor choice does not conflict with any of the
other command line choices. */
if (TARGET_ARM && !(insn_flags & FL_NOTM))
if (TARGET_IWMMXT_ABI && !TARGET_IWMMXT)
error ("iwmmxt abi requires an iwmmxt capable cpu");
- if (target_fpu_name == NULL && target_fpe_name != NULL)
- {
- if (streq (target_fpe_name, "2"))
- target_fpu_name = "fpe2";
- else if (streq (target_fpe_name, "3"))
- target_fpu_name = "fpe3";
- else
- error ("invalid floating point emulation option: -mfpe=%s",
- target_fpe_name);
- }
-
if (target_fpu_name == NULL)
{
#ifdef FPUTYPE_DEFAULT
gcc_unreachable();
}
- if (target_float_abi_name != NULL)
- {
- /* The user specified a FP ABI. */
- for (i = 0; i < ARRAY_SIZE (all_float_abis); i++)
- {
- if (streq (all_float_abis[i].name, target_float_abi_name))
- {
- arm_float_abi = all_float_abis[i].abi_type;
- break;
- }
- }
- if (i == ARRAY_SIZE (all_float_abis))
- error ("invalid floating point abi: -mfloat-abi=%s",
- target_float_abi_name);
- }
- else
- arm_float_abi = TARGET_DEFAULT_FLOAT_ABI;
-
if (TARGET_AAPCS_BASED
&& (arm_fpu_desc->model == ARM_FP_MODEL_FPA))
error ("FPA is unsupported in the AAPCS");
&& (tune_flags & FL_MODE32) == 0)
flag_schedule_insns = flag_schedule_insns_after_reload = 0;
- if (target_thread_switch)
- {
- if (strcmp (target_thread_switch, "soft") == 0)
- target_thread_pointer = TP_SOFT;
- else if (strcmp (target_thread_switch, "auto") == 0)
- target_thread_pointer = TP_AUTO;
- else if (strcmp (target_thread_switch, "cp15") == 0)
- target_thread_pointer = TP_CP15;
- else
- error ("invalid thread pointer option: -mtp=%s", target_thread_switch);
- }
-
/* Use the cp15 method if it is available. */
if (target_thread_pointer == TP_AUTO)
{
error ("can not use -mtp=cp15 with 16-bit Thumb");
/* Override the default structure alignment for AAPCS ABI. */
- if (TARGET_AAPCS_BASED)
- arm_structure_size_boundary = 8;
-
- if (structure_size_string != NULL)
+ if (!global_options_set.x_arm_structure_size_boundary)
{
- int size = strtol (structure_size_string, NULL, 0);
-
- if (size == 8 || size == 32
- || (ARM_DOUBLEWORD_ALIGN && size == 64))
- arm_structure_size_boundary = size;
- else
- warning (0, "structure size boundary can only be set to %s",
- ARM_DOUBLEWORD_ALIGN ? "8, 32 or 64": "8 or 32");
+ if (TARGET_AAPCS_BASED)
+ arm_structure_size_boundary = 8;
+ }
+ else
+ {
+ if (arm_structure_size_boundary != 8
+ && arm_structure_size_boundary != 32
+ && !(ARM_DOUBLEWORD_ALIGN && arm_structure_size_boundary == 64))
+ {
+ if (ARM_DOUBLEWORD_ALIGN)
+ warning (0,
+ "structure size boundary can only be set to 8, 32 or 64");
+ else
+ warning (0, "structure size boundary can only be set to 8 or 32");
+ arm_structure_size_boundary
+ = (TARGET_AAPCS_BASED ? 8 : DEFAULT_STRUCTURE_SIZE_BOUNDARY);
+ }
}
if (!TARGET_ARM && TARGET_VXWORKS_RTP && flag_pic)
/* Which floating point hardware to schedule for. */
extern int arm_fpu_attr;
-enum float_abi_type
-{
- ARM_FLOAT_ABI_SOFT,
- ARM_FLOAT_ABI_SOFTFP,
- ARM_FLOAT_ABI_HARD
-};
-
-extern enum float_abi_type arm_float_abi;
-
#ifndef TARGET_DEFAULT_FLOAT_ABI
#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_SOFT
#endif
-/* Which __fp16 format to use.
- The enumeration values correspond to the numbering for the
- Tag_ABI_FP_16bit_format attribute.
- */
-enum arm_fp16_format_type
-{
- ARM_FP16_FORMAT_NONE = 0,
- ARM_FP16_FORMAT_IEEE = 1,
- ARM_FP16_FORMAT_ALTERNATIVE = 2
-};
-
-extern enum arm_fp16_format_type arm_fp16_format;
#define LARGEST_EXPONENT_IS_NORMAL(bits) \
((bits) == 16 && arm_fp16_format == ARM_FP16_FORMAT_ALTERNATIVE)
-/* Which ABI to use. */
-enum arm_abi_type
-{
- ARM_ABI_APCS,
- ARM_ABI_ATPCS,
- ARM_ABI_AAPCS,
- ARM_ABI_IWMMXT,
- ARM_ABI_AAPCS_LINUX
-};
-
-extern enum arm_abi_type arm_abi;
-
#ifndef ARM_DEFAULT_ABI
#define ARM_DEFAULT_ABI ARM_ABI_APCS
#endif
-/* Which thread pointer access sequence to use. */
-enum arm_tp_type {
- TP_AUTO,
- TP_SOFT,
- TP_CP15
-};
-
-extern enum arm_tp_type target_thread_pointer;
-
/* Nonzero if this chip supports the ARM Architecture 3M extensions. */
extern int arm_arch3m;
0020D) page 2-20 says "Structures are aligned on word boundaries".
The AAPCS specifies a value of 8. */
#define STRUCTURE_SIZE_BOUNDARY arm_structure_size_boundary
-extern int arm_structure_size_boundary;
/* This is the value used to initialize arm_structure_size_boundary. If a
particular arm target wants to change the default value it should change
config/arm/arm-opts.h
mabi=
-Target RejectNegative Joined Var(target_abi_name)
+Target RejectNegative Joined Enum(arm_abi_type) Var(arm_abi) Init(ARM_DEFAULT_ABI)
Specify an ABI
+Enum
+Name(arm_abi_type) Type(enum arm_abi_type)
+Known ARM ABIs (for use with the -mabi= option):
+
+EnumValue
+Enum(arm_abi_type) String(apcs-gnu) Value(ARM_ABI_APCS)
+
+EnumValue
+Enum(arm_abi_type) String(atpcs) Value(ARM_ABI_ATPCS)
+
+EnumValue
+Enum(arm_abi_type) String(aapcs) Value(ARM_ABI_AAPCS)
+
+EnumValue
+Enum(arm_abi_type) String(iwmmxt) Value(ARM_ABI_IWMMXT)
+
+EnumValue
+Enum(arm_abi_type) String(aapcs-linux) Value(ARM_ABI_AAPCS_LINUX)
+
mabort-on-noreturn
Target Report Mask(ABORT_NORETURN)
Generate a call to abort if a noreturn function returns
Specify the name of the target CPU
mfloat-abi=
-Target RejectNegative Joined Var(target_float_abi_name)
+Target RejectNegative Joined Enum(float_abi_type) Var(arm_float_abi) Init(TARGET_DEFAULT_FLOAT_ABI)
Specify if floating point hardware should be used
-mfp=
-Target RejectNegative Joined Undocumented Var(target_fpe_name)
+Enum
+Name(float_abi_type) Type(enum float_abi_type)
+Known floating-point ABIs (for use with the -mfloat-abi= option):
+
+EnumValue
+Enum(float_abi_type) String(soft) Value(ARM_FLOAT_ABI_SOFT)
+
+EnumValue
+Enum(float_abi_type) String(softfp) Value(ARM_FLOAT_ABI_SOFTFP)
+
+EnumValue
+Enum(float_abi_type) String(hard) Value(ARM_FLOAT_ABI_HARD)
+
+mfp=2
+Target RejectNegative Undocumented Alias(mfpu=, fpe2)
+
+mfp=3
+Target RejectNegative Undocumented Alias(mfpu=, fpe3)
mfp16-format=
-Target RejectNegative Joined Var(target_fp16_format_name)
+Target RejectNegative Joined Enum(arm_fp16_format_type) Var(arm_fp16_format) Init(ARM_FP16_FORMAT_NONE)
Specify the __fp16 floating-point format
+Enum
+Name(arm_fp16_format_type) Type(enum arm_fp16_format_type)
+Known __fp16 formats (for use with the -mfp16-format= option):
+
+EnumValue
+Enum(arm_fp16_format_type) String(none) Value(ARM_FP16_FORMAT_NONE)
+
+EnumValue
+Enum(arm_fp16_format_type) String(ieee) Value(ARM_FP16_FORMAT_IEEE)
+
+EnumValue
+Enum(arm_fp16_format_type) String(alternative) Value(ARM_FP16_FORMAT_ALTERNATIVE)
+
;; Now ignored.
mfpe
Target RejectNegative Mask(FPE) Undocumented
-mfpe=
-Target RejectNegative Joined Undocumented Var(target_fpe_name)
+mfpe=2
+Target RejectNegative Undocumented Alias(mfpu=, fpe2)
+
+mfpe=3
+Target RejectNegative Undocumented Alias(mfpu=, fpe3)
mfpu=
Target RejectNegative Joined Var(target_fpu_name)
Target RejectNegative Alias(mfloat-abi=, soft) Undocumented
mstructure-size-boundary=
-Target RejectNegative Joined Var(structure_size_string)
+Target RejectNegative Joined UInteger Var(arm_structure_size_boundary) Init(DEFAULT_STRUCTURE_SIZE_BOUNDARY)
Specify the minimum bit alignment of structures
mthumb
Support calls between Thumb and ARM instruction sets
mtp=
-Target RejectNegative Joined Var(target_thread_switch)
+Target RejectNegative Joined Enum(arm_tp_type) Var(target_thread_pointer) Init(TP_AUTO)
Specify how to access the thread pointer
+Enum
+Name(arm_tp_type) Type(enum arm_tp_type)
+Valid arguments to -mtp=:
+
+EnumValue
+Enum(arm_tp_type) String(soft) Value(TP_SOFT)
+
+EnumValue
+Enum(arm_tp_type) String(auto) Value(TP_AUTO)
+
+EnumValue
+Enum(arm_tp_type) String(cp15) Value(TP_CP15)
+
mtpcs-frame
Target Report Mask(TPCS_FRAME)
Thumb: Generate (non-leaf) stack frames even if not needed
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