gcc/gcc/config/cris/cris.h - Issue 3050029: [gcc] GCC 4.5.0=>4.5.1

Unified Diff: gcc/gcc/config/cris/cris.h

Issue 3050029: [gcc] GCC 4.5.0=>4.5.1 (Closed) Base URL: ssh://git@gitrw.chromium.org:9222/nacl-toolchain.git

Patch Set: Created 10 years, 5 months ago

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Index: gcc/gcc/config/cris/cris.h

diff --git a/gcc/gcc/config/cris/cris.h b/gcc/gcc/config/cris/cris.h

index 803ad3c5a652dce5483a5e9fcd155e3853be5724..3c426b74ae5d8af9c2bcffe22b380bda90c5762a 100644

--- a/gcc/gcc/config/cris/cris.h

+++ b/gcc/gcc/config/cris/cris.h

@@ -1,6 +1,6 @@

/* Definitions for GCC. Part of the machine description for CRIS.

- Free Software Foundation, Inc.

+ 2009 Free Software Foundation, Inc.

Contributed by Axis Communications. Written by Hans-Peter Nilsson.

This file is part of GCC.

@@ -352,24 +352,10 @@ extern int target_flags;

#define UNITS_PER_WORD 4

-/* A combination of defining PROMOTE_FUNCTION_MODE,

- TARGET_PROMOTE_FUNCTION_ARGS that always returns true

- and *not* defining TARGET_PROMOTE_PROTOTYPES or PROMOTE_MODE gives the

- best code size and speed for gcc, ipps and products in gcc-2.7.2. */

#define CRIS_PROMOTED_MODE(MODE, UNSIGNEDP, TYPE) \

(GET_MODE_CLASS (MODE) == MODE_INT && GET_MODE_SIZE (MODE) < 4) \

? SImode : MODE

-#define PROMOTE_FUNCTION_MODE(MODE, UNSIGNEDP, TYPE) \

- (MODE) = CRIS_PROMOTED_MODE (MODE, UNSIGNEDP, TYPE)

-/* Defining PROMOTE_FUNCTION_RETURN in gcc-2.7.2 uncovers bug 981110 (even

- if defining FUNCTION_VALUE with MODE as PROMOTED_MODE ;-)

- FIXME: Report this when cris.h is part of GCC, so others can easily

- see the problem. Maybe check other systems that define

- TARGET_PROMOTE_FUNCTION_RETURN that always returns true. */

/* We will be using prototype promotion, so they will be 32 bit. */

#define PARM_BOUNDARY 32

@@ -855,20 +841,11 @@ enum reg_class

/* Node: Elimination */

-/* Really only needed if the stack frame has variable length (alloca

- or variable sized local arguments (GNU C extension). See PR39499 and

- PR38609 for the reason this isn't just 0. */

-#define FRAME_POINTER_REQUIRED (!current_function_sp_is_unchanging)

#define ELIMINABLE_REGS \

{{ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \

{ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \

{FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}}

-/* We need not worry about when the frame-pointer is required for other

- reasons. */

-#define CAN_ELIMINATE(FROM, TO) 1

#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \

(OFFSET) = cris_initial_elimination_offset (FROM, TO)

@@ -929,14 +906,8 @@ struct cum_args {int regs;};

/* Node: Scalar Return */

-/* Let's assume all functions return in r[CRIS_FIRST_ARG_REG] for the

- time being. */

-#define FUNCTION_VALUE(VALTYPE, FUNC) \

- gen_rtx_REG (TYPE_MODE (VALTYPE), CRIS_FIRST_ARG_REG)

+#define FUNCTION_VALUE_REGNO_P(N) cris_function_value_regno_p (N)

-#define LIBCALL_VALUE(MODE) gen_rtx_REG (MODE, CRIS_FIRST_ARG_REG)

-#define FUNCTION_VALUE_REGNO_P(N) ((N) == CRIS_FIRST_ARG_REG)

/* Node: Aggregate Return */

@@ -963,108 +934,11 @@ struct cum_args {int regs;};

/* Node: Trampolines */

-/* This looks too complicated, and it is. I assigned r7 to be the

- static chain register, but it is call-saved, so we have to save it,

- and come back to restore it after the call, so we have to save srp...

- Anyway, trampolines are rare enough that we can cope with this

- somewhat lack of elegance.

- (Do not be tempted to "straighten up" whitespace in the asms; the

- assembler #NO_APP state mandates strict spacing). */

-#define TRAMPOLINE_TEMPLATE(FILE) \

- do \

- { \

- if (TARGET_V32) \

- { \

- /* This normally-unused nop insn acts as an instruction to \

- the simulator to flush its instruction cache. None of \

- the other instructions in the trampoline template suits \

- as a trigger for V32. The pc-relative addressing mode \

- works nicely as a trigger for V10. \

- FIXME: Have specific V32 template (possibly avoiding the \

- use of a special instruction). */ \

- fprintf (FILE, "\tclearf x\n"); \

- /* We have to use a register as an intermediate, choosing \

- semi-randomly R1 (which has to not be the \

- STATIC_CHAIN_REGNUM), so we can use it for address \

- indirection and jsr target. */ \

- fprintf (FILE, "\tmove $r1,$mof\n"); \

- /* +4 */ \

- fprintf (FILE, "\tmove.d 0,$r1\n"); \

- fprintf (FILE, "\tmove.d $%s,[$r1]\n", \

- reg_names[STATIC_CHAIN_REGNUM]); \

- fprintf (FILE, "\taddq 6,$r1\n"); \

- fprintf (FILE, "\tmove $mof,[$r1]\n"); \

- fprintf (FILE, "\taddq 6,$r1\n"); \

- fprintf (FILE, "\tmove $srp,[$r1]\n"); \

- /* +20 */ \

- fprintf (FILE, "\tmove.d 0,$%s\n", \

- reg_names[STATIC_CHAIN_REGNUM]); \

- /* +26 */ \

- fprintf (FILE, "\tmove.d 0,$r1\n"); \

- fprintf (FILE, "\tjsr $r1\n"); \

- fprintf (FILE, "\tsetf\n"); \

- /* +36 */ \

- fprintf (FILE, "\tmove.d 0,$%s\n", \

- reg_names[STATIC_CHAIN_REGNUM]); \

- /* +42 */ \

- fprintf (FILE, "\tmove.d 0,$r1\n"); \

- /* +48 */ \

- fprintf (FILE, "\tmove.d 0,$r9\n"); \

- fprintf (FILE, "\tjump $r9\n"); \

- fprintf (FILE, "\tsetf\n"); \

- } \

- else \

- { \

- fprintf (FILE, "\tmove.d $%s,[$pc+20]\n", \

- reg_names[STATIC_CHAIN_REGNUM]); \

- fprintf (FILE, "\tmove $srp,[$pc+22]\n"); \

- fprintf (FILE, "\tmove.d 0,$%s\n", \

- reg_names[STATIC_CHAIN_REGNUM]); \

- fprintf (FILE, "\tjsr 0\n"); \

- fprintf (FILE, "\tmove.d 0,$%s\n", \

- reg_names[STATIC_CHAIN_REGNUM]); \

- fprintf (FILE, "\tjump 0\n"); \

- } \

- while (0)

#define TRAMPOLINE_SIZE (TARGET_V32 ? 58 : 32)

-/* CRIS wants instructions on word-boundary.

- Note that due to a bug (reported) in 2.7.2 and earlier, this is

- actually treated as alignment in _bytes_, not _bits_. (Obviously

- this is not fatal, only a slight waste of stack space). */

+/* CRIS wants instructions on word-boundary. */

#define TRAMPOLINE_ALIGNMENT 16

-#define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \

- do \

- if (TARGET_V32) \

- { \

- emit_move_insn (gen_rtx_MEM (SImode, \

- plus_constant (TRAMP, 6)), \

- plus_constant (TRAMP, 38)); \

- emit_move_insn (gen_rtx_MEM (SImode, \

- plus_constant (TRAMP, 22)), \

- CXT); \

- emit_move_insn (gen_rtx_MEM (SImode, \

- plus_constant (TRAMP, 28)), \

- FNADDR); \

- } \

- else \

- { \

- emit_move_insn (gen_rtx_MEM (SImode, \

- plus_constant (TRAMP, 10)), \

- CXT); \

- emit_move_insn (gen_rtx_MEM (SImode, \

- plus_constant (TRAMP, 16)), \

- FNADDR); \

- } \

- while (0)

-/* Note that there is no need to do anything with the cache for sake of

- a trampoline. */

/* Node: Library Calls */

/* If you change this, you have to check whatever libraries and systems

@@ -1076,8 +950,6 @@ struct cum_args {int regs;};

#define HAVE_POST_INCREMENT 1

-#define CONSTANT_ADDRESS_P(X) CONSTANT_P (X)

/* Must be a compile-time constant, so we go with the highest value

among all CRIS variants. */

#define MAX_REGS_PER_ADDRESS 2

@@ -1194,16 +1066,6 @@ struct cum_args {int regs;};

# define REG_OK_FOR_INDEX_P(X) REGNO_OK_FOR_INDEX_P (REGNO (X))

#endif

-/* For now, don't do anything. GCC does a good job most often.

- Maybe we could do something about gcc:s misbehavior when it

- recalculates frame offsets for local variables, from fp+offs to

- sp+offs. The resulting address expression gets screwed up

- sometimes, but I'm not sure that it may be fixed here, since it is

- already split up in several instructions (Is this still true?).

- FIXME: Check and adjust for gcc-2.9x. */

-#define LEGITIMIZE_ADDRESS(X, OLDX, MODE, WIN) {}

/* Fix reloads known to cause suboptimal spilling. */

#define LEGITIMIZE_RELOAD_ADDRESS(X, MODE, OPNUM, TYPE, INDL, WIN) \

do \

@@ -1213,11 +1075,6 @@ struct cum_args {int regs;};

} \

while (0)

-/* In CRIS, only the postincrement address mode depends thus,

- since the increment depends on the size of the operand. This is now

- treated generically within recog.c. */

-#define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR, LABEL)

#define LEGITIMATE_CONSTANT_P(X) 1

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