-/* Definitions of target machine for GNU compiler, for Acorn RISC Machine.
+/* Definitions of target machine for GNU compiler, for ARM.
Copyright (C) 1991, 93, 94, 95, 96, 97, 98, 1999 Free Software Foundation, Inc.
Contributed by Pieter `Tiggr' Schoenmakers (rcpieter@win.tue.nl)
and Martin Simmons (@harleqn.co.uk).
#define TARGET_CPU_arm810 0x0020
#define TARGET_CPU_strongarm 0x0040
#define TARGET_CPU_strongarm110 0x0040
+#define TARGET_CPU_strongarm1100 0x0040
#define TARGET_CPU_arm9 0x0080
#define TARGET_CPU_arm9tdmi 0x0080
/* Configure didn't specify */
%{march=arm9tdmi:-D__ARM_ARCH_4T__} \
%{march=strongarm:-D__ARM_ARCH_4__} \
%{march=strongarm110:-D__ARM_ARCH_4__} \
+%{march=strongarm1100:-D__ARM_ARCH_4__} \
%{march=armv2:-D__ARM_ARCH_2__} \
%{march=armv2a:-D__ARM_ARCH_2__} \
%{march=armv3:-D__ARM_ARCH_3__} \
%{mcpu=arm9tdmi:-D__ARM_ARCH_4T__} \
%{mcpu=strongarm:-D__ARM_ARCH_4__} \
%{mcpu=strongarm110:-D__ARM_ARCH_4__} \
+ %{mcpu=strongarm1100:-D__ARM_ARCH_4__} \
%{!mcpu*:%{!m6:%{!m2:%{!m3:%(cpp_cpu_arch_default)}}}}} \
"
extern int target_flags;
/* The floating point instruction architecture, can be 2 or 3 */
-extern char *target_fp_name;
+extern char * target_fp_name;
/* Nonzero if the function prologue (and epilogue) should obey
the ARM Procedure Call Standard. */
big-endian (for backwards compatibility with older versions of GCC). */
#define ARM_FLAG_LITTLE_WORDS (0x2000)
+/* Nonzero if we need to protect the prolog from scheduling */
+#define ARM_FLAG_NO_SCHED_PRO (0x4000)
+
/* Nonzero if a call to abort should be generated if a noreturn
function tries to return. */
#define ARM_FLAG_ABORT_NORETURN (0x8000)
#define TARGET_BIG_END (target_flags & ARM_FLAG_BIG_END)
#define TARGET_THUMB_INTERWORK (target_flags & ARM_FLAG_THUMB)
#define TARGET_LITTLE_WORDS (target_flags & ARM_FLAG_LITTLE_WORDS)
+#define TARGET_NO_SCHED_PRO (target_flags & ARM_FLAG_NO_SCHED_PRO)
#define TARGET_ABORT_NORETURN (target_flags & ARM_FLAG_ABORT_NORETURN)
/* SUBTARGET_SWITCHES is used to add flags on a per-config basis.
{"abort-on-noreturn", ARM_FLAG_ABORT_NORETURN, \
"Generate a call to abort if a noreturn function returns"}, \
{"no-abort-on-noreturn", -ARM_FLAG_ABORT_NORETURN, ""}, \
+ {"sched-prolog", -ARM_FLAG_NO_SCHED_PRO, \
+ "Do not move instructions into a function's prologue" }, \
+ {"no-sched-prolog", ARM_FLAG_NO_SCHED_PRO, "" }, \
SUBTARGET_SWITCHES \
{"", TARGET_DEFAULT } \
}
#define TARGET_OPTIONS \
{ \
- {"cpu=", \
- &arm_select[1].string, \
- "Specify the name of the target CPU"}, \
- {"arch=", \
- &arm_select[2].string, \
- "Specify the name of the target architecture"}, \
- {"tune=", \
- &arm_select[3].string, \
- "Order instructions for best performance on this CPU"}, \
- {"fp=", \
- &target_fp_name, \
- "Specify the version of the floating point emulator"}, \
- {"structure-size-boundary=", \
- &structure_size_string, \
- "Specify the minumum bit alignment of structures"} \
+ {"cpu=", & arm_select[0].string, \
+ "Specify the name of the target CPU" }, \
+ {"arch=", & arm_select[1].string, \
+ "Specify the name of the target architecture" }, \
+ {"tune=", & arm_select[2].string, "" }, \
+ {"fpe=", & target_fp_name, "" }, \
+ {"fp=", & target_fp_name, \
+ "Specify the version of the floating point emulator" }, \
+ { "structure-size-boundary=", & structure_size_string, \
+ "Specify the minumum bit alignment of structures" } \
}
-/* arm_select[0] is reserved for the default cpu. */
struct arm_cpu_select
{
- char *string;
- char *name;
- int set_tune_p;
- int set_arch_p;
+ char * string;
+ char * name;
+ struct processors * processors;
};
+/* This is a magic array. If the user specifies a command line switch
+ which matches one of the entries in TARGET_OPTIONS then the corresponding
+ string pointer will be set to the value specified by the user. */
extern struct arm_cpu_select arm_select[];
-#ifndef PROCESSOR_DEFAULT
-#define PROCESSOR_DEFAULT PROCESSOR_ARM2
-#endif
-
-#ifndef TARGET_CPU_DEFAULT
-#define TARGET_CPU_DEFAULT ((char *) 0)
-#endif
-
-/* Which processor we are running on, for instruction scheduling
- purposes. */
-enum processor_type
-{
- PROCESSOR_ARM2,
- PROCESSOR_ARM3,
- PROCESSOR_ARM6,
- PROCESSOR_ARM7,
- PROCESSOR_ARM8,
- PROCESSOR_ARM9,
- PROCESSOR_STARM,
- PROCESSOR_NONE /* NOTE: This must be last, since it doesn't
- appear in the attr_cpu list */
-};
-
-/* Recast the cpu class to be the cpu attribute. */
-#define arm_cpu_attr ((enum attr_cpu)arm_cpu)
-
-extern enum processor_type arm_cpu;
-
enum prog_mode_type
{
prog_mode26,
/* Nonzero if this chip supports the ARM Architecture 4 extensions */
extern int arm_arch4;
+/* Nonzero if this chip can benefit from load scheduling. */
+extern int arm_ld_sched;
+
+/* Nonzero if this chip is a StrongARM. */
+extern int arm_is_strong;
+
+/* Nonzero if this chip is a an ARM6 or an ARM7. */
+extern int arm_is_6_or_7;
+
#ifndef TARGET_DEFAULT
#define TARGET_DEFAULT 0
#endif
r4-r8 S register variable
r9 S (rfp) register variable (real frame pointer)
-
- r10 F S (sl) stack limit (not currently used)
+
+ r10 F S (sl) stack limit (used by -mapcs-stack-check)
r11 F S (fp) argument pointer
r12 (ip) temp workspace
r13 F S (sp) lower end of current stack frame
fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1; \
call_used_regs[PIC_OFFSET_TABLE_REGNUM] = 0; \
} \
+ else if (! TARGET_APCS_STACK) \
+ { \
+ fixed_regs[10] = 0; \
+ call_used_regs[10] = 0; \
+ } \
}
/* Return number of consecutive hard regs needed starting at reg REGNO
/* How large values are returned */
/* A C expression which can inhibit the returning of certain function values
in registers, based on the type of value. */
-#define RETURN_IN_MEMORY(TYPE) \
- (TYPE_MODE ((TYPE)) == BLKmode || \
- (AGGREGATE_TYPE_P ((TYPE)) && arm_return_in_memory ((TYPE))))
+#define RETURN_IN_MEMORY(TYPE) arm_return_in_memory (TYPE)
/* Define DEFAULT_PCC_STRUCT_RETURN to 1 if all structure and union return
values must be in memory. On the ARM, they need only do so if larger
#define FINALIZE_PIC arm_finalize_pic ()
-/* We can't directly access anything that contains a symbol, nor can
- we indirect via the constant pool */
+/* We can't directly access anything that contains a symbol,
+ nor can we indirect via the constant pool. */
#define LEGITIMATE_PIC_OPERAND_P(X) \
(! symbol_mentioned_p (X) \
&& (! CONSTANT_POOL_ADDRESS_P (X) \
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