/* Definitions of target machine for GNU compiler, for the HP Spectrum.
Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
- 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+ 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
Contributed by Michael Tiemann (tiemann@cygnus.com) of Cygnus Support
and Tim Moore (moore@defmacro.cs.utah.edu) of the Center for
Software Science at the University of Utah.
#define TARGET_HPUX_10_10 0
#endif
+/* HP-UX 11.* features (11.00, 11.11, 11.23, etc.) */
+#ifndef TARGET_HPUX_11
+#define TARGET_HPUX_11 0
+#endif
+
/* HP-UX 11i multibyte and UNIX 98 extensions. */
#ifndef TARGET_HPUX_11_11
#define TARGET_HPUX_11_11 0
conventions for TImode variables. */
#define MIN_UNITS_PER_WORD 4
+/* The widest floating point format supported by the hardware. Note that
+ setting this influences some Ada floating point type sizes, currently
+ required for GNAT to operate properly. */
+#define WIDEST_HARDWARE_FP_SIZE 64
+
/* Allocation boundary (in *bits*) for storing arguments in argument list. */
#define PARM_BOUNDARY BITS_PER_WORD
is already live or already being saved (due to eh). */
#define HARD_REGNO_RENAME_OK(OLD_REG, NEW_REG) \
- ((NEW_REG) != 2 || regs_ever_live[2] || current_function_calls_eh_return)
+ ((NEW_REG) != 2 || df_regs_ever_live_p (2) || current_function_calls_eh_return)
/* C statement to store the difference between the frame pointer
and the stack pointer values immediately after the function prologue.
#define EH_RETURN_DATA_REGNO(N) \
((N) < 3 ? (N) + 20 : (N) == 3 ? 31 : INVALID_REGNUM)
#define EH_RETURN_STACKADJ_RTX gen_rtx_REG (Pmode, 29)
-#define EH_RETURN_HANDLER_RTX \
- gen_rtx_MEM (word_mode, \
- gen_rtx_PLUS (word_mode, frame_pointer_rtx, \
- TARGET_64BIT ? GEN_INT (-16) : GEN_INT (-20)))
-
-
-/* Offset from the argument pointer register value to the top of
- stack. This is different from FIRST_PARM_OFFSET because of the
- frame marker. */
-#define ARG_POINTER_CFA_OFFSET(FNDECL) 0
+#define EH_RETURN_HANDLER_RTX pa_eh_return_handler_rtx ()
+
+/* Offset from the frame pointer register value to the top of stack. */
+#define FRAME_POINTER_CFA_OFFSET(FNDECL) 0
+
+/* A C expression whose value is RTL representing the location of the
+ incoming return address at the beginning of any function, before the
+ prologue. You only need to define this macro if you want to support
+ call frame debugging information like that provided by DWARF 2. */
+#define INCOMING_RETURN_ADDR_RTX (gen_rtx_REG (word_mode, 2))
+#define DWARF_FRAME_RETURN_COLUMN (DWARF_FRAME_REGNUM (2))
+
+/* A C expression whose value is an integer giving a DWARF 2 column
+ number that may be used as an alternate return column. This should
+ be defined only if DWARF_FRAME_RETURN_COLUMN is set to a general
+ register, but an alternate column needs to be used for signal frames.
+
+ Column 0 is not used but unfortunately its register size is set to
+ 4 bytes (sizeof CCmode) so it can't be used on 64-bit targets. */
+#define DWARF_ALT_FRAME_RETURN_COLUMN FIRST_PSEUDO_REGISTER
+
+/* This macro chooses the encoding of pointers embedded in the exception
+ handling sections. If at all possible, this should be defined such
+ that the exception handling section will not require dynamic relocations,
+ and so may be read-only.
+
+ Because the HP assembler auto aligns, it is necessary to use
+ DW_EH_PE_aligned. It's not possible to make the data read-only
+ on the HP-UX SOM port since the linker requires fixups for label
+ differences in different sections to be word aligned. However,
+ the SOM linker can do unaligned fixups for absolute pointers.
+ We also need aligned pointers for global and function pointers.
+
+ Although the HP-UX 64-bit ELF linker can handle unaligned pc-relative
+ fixups, the runtime doesn't have a consistent relationship between
+ text and data for dynamically loaded objects. Thus, it's not possible
+ to use pc-relative encoding for pointers on this target. It may be
+ possible to use segment relative encodings but GAS doesn't currently
+ have a mechanism to generate these encodings. For other targets, we
+ use pc-relative encoding for pointers. If the pointer might require
+ dynamic relocation, we make it indirect. */
+#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
+ (TARGET_GAS && !TARGET_HPUX \
+ ? (DW_EH_PE_pcrel \
+ | ((GLOBAL) || (CODE) == 2 ? DW_EH_PE_indirect : 0) \
+ | (TARGET_64BIT ? DW_EH_PE_sdata8 : DW_EH_PE_sdata4)) \
+ : (!TARGET_GAS || (GLOBAL) || (CODE) == 2 \
+ ? DW_EH_PE_aligned : DW_EH_PE_absptr))
+
+/* Handle special EH pointer encodings. Absolute, pc-relative, and
+ indirect are handled automatically. We output pc-relative, and
+ indirect pc-relative ourself since we need some special magic to
+ generate pc-relative relocations, and to handle indirect function
+ pointers. */
+#define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(FILE, ENCODING, SIZE, ADDR, DONE) \
+ do { \
+ if (((ENCODING) & 0x70) == DW_EH_PE_pcrel) \
+ { \
+ fputs (integer_asm_op (SIZE, FALSE), FILE); \
+ if ((ENCODING) & DW_EH_PE_indirect) \
+ output_addr_const (FILE, get_deferred_plabel (ADDR)); \
+ else \
+ assemble_name (FILE, XSTR ((ADDR), 0)); \
+ fputs ("+8-$PIC_pcrel$0", FILE); \
+ goto DONE; \
+ } \
+ } while (0)
\f
-/* The letters I, J, K, L and M in a register constraint string
- can be used to stand for particular ranges of immediate operands.
- This macro defines what the ranges are.
- C is the letter, and VALUE is a constant value.
- Return 1 if VALUE is in the range specified by C.
-
- `I' is used for the 11 bit constants.
- `J' is used for the 14 bit constants.
- `K' is used for values that can be moved with a zdepi insn.
- `L' is used for the 5 bit constants.
- `M' is used for 0.
- `N' is used for values with the least significant 11 bits equal to zero
- and when sign extended from 32 to 64 bits the
- value does not change.
- `O' is used for numbers n such that n+1 is a power of 2.
- */
-
-#define CONST_OK_FOR_LETTER_P(VALUE, C) \
- ((C) == 'I' ? VAL_11_BITS_P (VALUE) \
- : (C) == 'J' ? VAL_14_BITS_P (VALUE) \
- : (C) == 'K' ? zdepi_cint_p (VALUE) \
- : (C) == 'L' ? VAL_5_BITS_P (VALUE) \
- : (C) == 'M' ? (VALUE) == 0 \
- : (C) == 'N' ? (((VALUE) & (((HOST_WIDE_INT) -1 << 31) | 0x7ff)) == 0 \
- || (((VALUE) & (((HOST_WIDE_INT) -1 << 31) | 0x7ff)) \
- == (HOST_WIDE_INT) -1 << 31)) \
- : (C) == 'O' ? (((VALUE) & ((VALUE) + 1)) == 0) \
- : (C) == 'P' ? and_mask_p (VALUE) \
- : 0)
-
-/* Similar, but for floating or large integer constants, and defining letters
- G and H. Here VALUE is the CONST_DOUBLE rtx itself.
-
- For PA, `G' is the floating-point constant zero. `H' is undefined. */
-
-#define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) \
- ((C) == 'G' ? (GET_MODE_CLASS (GET_MODE (VALUE)) == MODE_FLOAT \
- && (VALUE) == CONST0_RTX (GET_MODE (VALUE))) \
- : 0)
/* The class value for index registers, and the one for base regs. */
#define INDEX_REG_CLASS GENERAL_REGS
in some cases it is preferable to use a more restrictive class. */
#define PREFERRED_RELOAD_CLASS(X,CLASS) (CLASS)
-/* Return the register class of a scratch register needed to copy
- IN into a register in CLASS in MODE, or a register in CLASS in MODE
- to IN. If it can be done directly NO_REGS is returned.
-
- Avoid doing any work for the common case calls. */
-#define SECONDARY_RELOAD_CLASS(CLASS,MODE,IN) \
- ((CLASS == BASE_REG_CLASS && GET_CODE (IN) == REG \
- && REGNO (IN) < FIRST_PSEUDO_REGISTER) \
- ? NO_REGS : secondary_reload_class (CLASS, MODE, IN))
-
#define MAYBE_FP_REG_CLASS_P(CLASS) \
reg_classes_intersect_p ((CLASS), FP_REGS)
/* On the PA it is not possible to directly move data between
- GENERAL_REGS and FP_REGS. */
-#define SECONDARY_MEMORY_NEEDED(CLASS1, CLASS2, MODE) \
- (MAYBE_FP_REG_CLASS_P (CLASS1) != FP_REG_CLASS_P (CLASS2) \
- || MAYBE_FP_REG_CLASS_P (CLASS2) != FP_REG_CLASS_P (CLASS1))
-
-/* Return the stack location to use for secondary memory needed reloads. */
-#define SECONDARY_MEMORY_NEEDED_RTX(MODE) \
- gen_rtx_MEM (MODE, gen_rtx_PLUS (Pmode, stack_pointer_rtx, GEN_INT (-16)))
+ GENERAL_REGS and FP_REGS. On the 32-bit port, we use the
+ location at SP-16. We don't expose this location in the RTL to
+ avoid scheduling related problems. For example, the store and
+ load could be separated by a call to a pure or const function
+ which has no frame and uses SP-16. */
+#define SECONDARY_MEMORY_NEEDED(CLASS1, CLASS2, MODE) \
+ (TARGET_64BIT \
+ && (MAYBE_FP_REG_CLASS_P (CLASS1) != FP_REG_CLASS_P (CLASS2) \
+ || MAYBE_FP_REG_CLASS_P (CLASS2) != FP_REG_CLASS_P (CLASS1)))
\f
/* Stack layout; function entry, exit and calling. */
/* Believe it or not. */
#define ARGS_GROW_DOWNWARD
-/* Define this to non-zero if the nominal address of the stack frame
+/* Define this to nonzero if the nominal address of the stack frame
is at the high-address end of the local variables;
that is, each additional local variable allocated
goes at a more negative offset in the frame. */
/* Define this if the above stack space is to be considered part of the
space allocated by the caller. */
-#define OUTGOING_REG_PARM_STACK_SPACE
+#define OUTGOING_REG_PARM_STACK_SPACE 1
/* Keep the stack pointer constant throughout the function.
This is both an optimization and a necessity: longjmp
/* The profile counter if emitted must come before the prologue. */
#define PROFILE_BEFORE_PROLOGUE 1
+/* We never want final.c to emit profile counters. When profile
+ counters are required, we have to defer emitting them to the end
+ of the current file. */
+#define NO_PROFILE_COUNTERS 1
+
/* EXIT_IGNORE_STACK should be nonzero if, when returning from a function,
the stack pointer does not matter. The value is tested only in
functions that have frame pointers.
#define LEGITIMATE_CONSTANT_P(X) \
((GET_MODE_CLASS (GET_MODE (X)) != MODE_FLOAT \
|| (X) == CONST0_RTX (GET_MODE (X))) \
- && (NEW_HP_ASSEMBLER || TARGET_GAS || GET_CODE (X) != LABEL_REF) \
- && !(TARGET_64BIT && GET_CODE (X) == CONST_DOUBLE) \
- && !(TARGET_64BIT && GET_CODE (X) == CONST_INT \
- && !(HOST_BITS_PER_WIDE_INT <= 32 \
- || (reload_in_progress || reload_completed) \
- || LEGITIMATE_64BIT_CONST_INT_P (INTVAL (X)) \
- || cint_ok_for_move (INTVAL (X)))) \
+ && (NEW_HP_ASSEMBLER \
+ || TARGET_GAS \
+ || GET_CODE (X) != LABEL_REF) \
+ && (!TARGET_64BIT \
+ || GET_CODE (X) != CONST_DOUBLE) \
+ && (!TARGET_64BIT \
+ || HOST_BITS_PER_WIDE_INT <= 32 \
+ || GET_CODE (X) != CONST_INT \
+ || reload_in_progress \
+ || reload_completed \
+ || LEGITIMATE_64BIT_CONST_INT_P (INTVAL (X)) \
+ || cint_ok_for_move (INTVAL (X))) \
&& !function_label_operand (X, VOIDmode))
/* Target flags set on a symbol_ref. */
#define SYMBOL_REF_REFERENCED_P(RTX) \
((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_REFERENCED) != 0)
-/* Subroutines for EXTRA_CONSTRAINT.
-
- Return 1 iff OP is a pseudo which did not get a hard register and
- we are running the reload pass. */
-#define IS_RELOADING_PSEUDO_P(OP) \
- ((reload_in_progress \
- && GET_CODE (OP) == REG \
- && REGNO (OP) >= FIRST_PSEUDO_REGISTER \
- && reg_renumber [REGNO (OP)] < 0))
+/* Defines for constraints.md. */
/* Return 1 iff OP is a scaled or unscaled index address. */
#define IS_INDEX_ADDR_P(OP) \
&& REG_OK_FOR_BASE_P (XEXP (OP, 0)) \
&& GET_CODE (XEXP (OP, 1)) == UNSPEC)
-/* Optional extra constraints for this machine. Borrowed from sparc.h.
-
- `A' is a LO_SUM DLT memory operand.
-
- `Q' is any memory operand that isn't a symbolic, indexed or lo_sum
- memory operand. Note that an unassigned pseudo register is such a
- memory operand. Needed because reload will generate these things
- and then not re-recognize the insn, causing constrain_operands to
- fail.
-
- `R' is a scaled/unscaled indexed memory operand.
-
- `S' is the constant 31.
-
- `T' is for floating-point loads and stores.
-
- `U' is the constant 63.
-
- `W' is a register indirect memory operand. We could allow short
- displacements but GO_IF_LEGITIMATE_ADDRESS can't tell when a
- long displacement is valid. This is only used for prefetch
- instructions with the `sl' completer. */
-
-#define EXTRA_CONSTRAINT(OP, C) \
- ((C) == 'Q' ? \
- (IS_RELOADING_PSEUDO_P (OP) \
- || (GET_CODE (OP) == MEM \
- && (reload_in_progress \
- || memory_address_p (GET_MODE (OP), XEXP (OP, 0))) \
- && !symbolic_memory_operand (OP, VOIDmode) \
- && !IS_LO_SUM_DLT_ADDR_P (XEXP (OP, 0)) \
- && !IS_INDEX_ADDR_P (XEXP (OP, 0)))) \
- : ((C) == 'W' ? \
- (GET_CODE (OP) == MEM \
- && REG_P (XEXP (OP, 0)) \
- && REG_OK_FOR_BASE_P (XEXP (OP, 0))) \
- : ((C) == 'A' ? \
- (GET_CODE (OP) == MEM \
- && IS_LO_SUM_DLT_ADDR_P (XEXP (OP, 0))) \
- : ((C) == 'R' ? \
- (GET_CODE (OP) == MEM \
- && IS_INDEX_ADDR_P (XEXP (OP, 0))) \
- : ((C) == 'T' ? \
- (GET_CODE (OP) == MEM \
- && !IS_LO_SUM_DLT_ADDR_P (XEXP (OP, 0)) \
- && !IS_INDEX_ADDR_P (XEXP (OP, 0)) \
- /* Floating-point loads and stores are used to load \
- integer values as well as floating-point values. \
- They don't have the same set of REG+D address modes \
- as integer loads and stores. PA 1.x supports only \
- short displacements. PA 2.0 supports long displacements \
- but the base register needs to be aligned. \
- \
- The checks in GO_IF_LEGITIMATE_ADDRESS for SFmode and \
- DFmode test the validity of an address for use in a \
- floating point load or store. So, we use SFmode/DFmode \
- to see if the address is valid for a floating-point \
- load/store operation. */ \
- && memory_address_p ((GET_MODE_SIZE (GET_MODE (OP)) == 4 \
- ? SFmode \
- : DFmode), \
- XEXP (OP, 0))) \
- : ((C) == 'S' ? \
- (GET_CODE (OP) == CONST_INT && INTVAL (OP) == 31) \
- : ((C) == 'U' ? \
- (GET_CODE (OP) == CONST_INT && INTVAL (OP) == 63) : 0)))))))
-
-
/* The macros REG_OK_FOR..._P assume that the arg is a REG rtx
and check its validity for a certain class.
We have two alternate definitions for each of them.
function's constant-pool, because such addresses can actually be
output as REG+SMALLINT.
- Note we only allow 5 bit immediates for access to a constant address;
+ Note we only allow 5-bit immediates for access to a constant address;
doing so avoids losing for loading/storing a FP register at an address
which will not fit in 5 bits. */
/* Go to LABEL if ADDR (a legitimate address expression)
has an effect that depends on the machine mode it is used for. */
-#define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL) \
- if (GET_CODE (ADDR) == PRE_DEC \
- || GET_CODE (ADDR) == POST_DEC \
- || GET_CODE (ADDR) == PRE_INC \
- || GET_CODE (ADDR) == POST_INC) \
- goto LABEL
+#define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL)
\f
#define TARGET_ASM_SELECT_SECTION pa_select_section
((TREE_CODE (DECL) == FUNCTION_DECL || TREE_CODE (DECL) == VAR_DECL) \
&& DECL_SECTION_NAME (DECL) != NULL_TREE)
-/* The following extra sections and extra section functions are only used
- for SOM, but they must be provided unconditionally because pa.c's calls
- to the functions might not get optimized out when other object formats
- are in use. */
-
-#define EXTRA_SECTIONS \
- in_som_readonly_data, \
- in_som_one_only_readonly_data, \
- in_som_one_only_data
-
-#define EXTRA_SECTION_FUNCTIONS \
- SOM_READONLY_DATA_SECTION_FUNCTION \
- SOM_ONE_ONLY_READONLY_DATA_SECTION_FUNCTION \
- SOM_ONE_ONLY_DATA_SECTION_FUNCTION \
- FORGET_SECTION_FUNCTION
-
-/* SOM puts readonly data in the default $LIT$ subspace when PIC code
- is not being generated. */
-#define SOM_READONLY_DATA_SECTION_FUNCTION \
-void \
-som_readonly_data_section (void) \
-{ \
- if (!TARGET_SOM) \
- return; \
- if (in_section != in_som_readonly_data) \
- { \
- in_section = in_som_readonly_data; \
- fputs ("\t.SPACE $TEXT$\n\t.SUBSPA $LIT$\n", asm_out_file); \
- } \
-}
-
-/* When secondary definitions are not supported, SOM makes readonly data one
- only by creating a new $LIT$ subspace in $TEXT$ with the comdat flag. */
-#define SOM_ONE_ONLY_READONLY_DATA_SECTION_FUNCTION \
-void \
-som_one_only_readonly_data_section (void) \
-{ \
- if (!TARGET_SOM) \
- return; \
- in_section = in_som_one_only_readonly_data; \
- fputs ("\t.SPACE $TEXT$\n" \
- "\t.NSUBSPA $LIT$,QUAD=0,ALIGN=8,ACCESS=0x2c,SORT=16,COMDAT\n",\
- asm_out_file); \
-}
-
-/* When secondary definitions are not supported, SOM makes data one only by
- creating a new $DATA$ subspace in $PRIVATE$ with the comdat flag. */
-#define SOM_ONE_ONLY_DATA_SECTION_FUNCTION \
-void \
-som_one_only_data_section (void) \
-{ \
- if (!TARGET_SOM) \
- return; \
- in_section = in_som_one_only_data; \
- fputs ("\t.SPACE $PRIVATE$\n" \
- "\t.NSUBSPA $DATA$,QUAD=1,ALIGN=8,ACCESS=31,SORT=24,COMDAT\n", \
- asm_out_file); \
-}
-
-#define FORGET_SECTION_FUNCTION \
-void \
-forget_section (void) \
-{ \
- in_section = no_section; \
-}
-
/* Define this macro if references to a symbol must be treated
differently depending on something about the variable or
function named by the symbol (such as what section it is in).
/* This is how to output the definition of a user-level label named NAME,
such as the label on a static function or variable NAME. */
-#define ASM_OUTPUT_LABEL(FILE, NAME) \
- do { assemble_name (FILE, NAME); \
- fputc ('\n', FILE); } while (0)
+#define ASM_OUTPUT_LABEL(FILE,NAME) \
+ do { \
+ assemble_name ((FILE), (NAME)); \
+ if (TARGET_GAS) \
+ fputs (":\n", (FILE)); \
+ else \
+ fputc ('\n', (FILE)); \
+ } while (0)
/* This is how to output a reference to a user-level label named NAME.
`assemble_name' uses this. */
#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
sprintf (LABEL, "*%c$%s%04ld", (PREFIX)[0], (PREFIX) + 1, (long)(NUM))
+/* Output the definition of a compiler-generated label named NAME. */
+
+#define ASM_OUTPUT_INTERNAL_LABEL(FILE,NAME) \
+ do { \
+ assemble_name_raw ((FILE), (NAME)); \
+ if (TARGET_GAS) \
+ fputs (":\n", (FILE)); \
+ else \
+ fputc ('\n', (FILE)); \
+ } while (0)
+
#define TARGET_ASM_GLOBALIZE_LABEL pa_globalize_label
#define ASM_OUTPUT_ASCII(FILE, P, SIZE) \
OSDN Git Service
