mirror of
git://gcc.gnu.org/git/gcc.git
synced 2025-04-13 11:21:18 +08:00
s390-protos.h (s390_return_address_offset): Prototype added.
2004-07-19 Andreas Krebbel <krebbel1@de.ibm.com>
* config/s390/s390-protos.h (s390_return_address_offset): Prototype
added.
* config/s390/s390.c (regclass_map initializer): Register 35 added to
ADDR_REGS.
(load_multiple_operation, store_multiple_operation): Removed
pointless sanity check.
(s390_decompose_address): Added check for return_address_pointer_rtx.
(s390_return_addr_rtx): Use return_address_pointer_rtx for count == 0.
(s390_return_address_offset): New function.
* config/s390/s390.h (FIRST_PSEUDO_REGISTER): Increased to 36.
(FRAME_REGNO_P): Added check for register 35.
(FIXED_REGISTERS, CALL_USED_REGISTERS, CALL_REALLY_USED_REGISTERS,
REG_ALLOC_ORDER): Appended entry for register 35.
(REG_CLASS_CONTENTS): Adjusted class masks for register 35.
(EH_RETURN_HANDLER_RTX): Use return_address_pointer_rtx.
(RETURN_ADDRESS_POINTER_REGNUM): New macro.
(ELIMINABLE_REGS, INITIAL_ELIMINATION_OFFSET): Return address pointer
is eliminable using stack pointer or hard frame pointer.
(REGISTER_NAMES): Added name for register 35.
* config/s390/s390.md ("load_multiple", "store_multiple"): Removed
pointless sanity check.
From-SVN: r84918
This commit is contained in:
Andreas Krebbel
Ulrich Weigand
parent
adb8e07e68
commit
a38e09bc21
gcc
@ -1,3 +1,27 @@
|
||||
2004-07-19 Andreas Krebbel <krebbel1@de.ibm.com>
|
||||
|
||||
* config/s390/s390-protos.h (s390_return_address_offset): Prototype
|
||||
added.
|
||||
* config/s390/s390.c (regclass_map initializer): Register 35 added to
|
||||
ADDR_REGS.
|
||||
(load_multiple_operation, store_multiple_operation): Removed
|
||||
pointless sanity check.
|
||||
(s390_decompose_address): Added check for return_address_pointer_rtx.
|
||||
(s390_return_addr_rtx): Use return_address_pointer_rtx for count == 0.
|
||||
(s390_return_address_offset): New function.
|
||||
* config/s390/s390.h (FIRST_PSEUDO_REGISTER): Increased to 36.
|
||||
(FRAME_REGNO_P): Added check for register 35.
|
||||
(FIXED_REGISTERS, CALL_USED_REGISTERS, CALL_REALLY_USED_REGISTERS,
|
||||
REG_ALLOC_ORDER): Appended entry for register 35.
|
||||
(REG_CLASS_CONTENTS): Adjusted class masks for register 35.
|
||||
(EH_RETURN_HANDLER_RTX): Use return_address_pointer_rtx.
|
||||
(RETURN_ADDRESS_POINTER_REGNUM): New macro.
|
||||
(ELIMINABLE_REGS, INITIAL_ELIMINATION_OFFSET): Return address pointer
|
||||
is eliminable using stack pointer or hard frame pointer.
|
||||
(REGISTER_NAMES): Added name for register 35.
|
||||
* config/s390/s390.md ("load_multiple", "store_multiple"): Removed
|
||||
pointless sanity check.
|
||||
|
||||
2004-07-19 Roger Sayle <roger@eyesopen.com>
|
||||
|
||||
* fold-const.c (tree_expr_nonzero_p): Add function prototype.
|
||||
|
||||
@ -24,6 +24,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
|
||||
extern void optimization_options (int, int);
|
||||
extern void override_options (void);
|
||||
extern HOST_WIDE_INT s390_arg_frame_offset (void);
|
||||
extern HOST_WIDE_INT s390_return_address_offset (void);
|
||||
extern void s390_emit_prologue (void);
|
||||
extern void s390_emit_epilogue (bool);
|
||||
extern void s390_function_profiler (FILE *, int);
|
||||
|
||||
@ -1038,7 +1038,7 @@ const enum reg_class regclass_map[FIRST_PSEUDO_REGISTER] =
|
||||
FP_REGS, FP_REGS, FP_REGS, FP_REGS,
|
||||
FP_REGS, FP_REGS, FP_REGS, FP_REGS,
|
||||
FP_REGS, FP_REGS, FP_REGS, FP_REGS,
|
||||
ADDR_REGS, NO_REGS, ADDR_REGS
|
||||
ADDR_REGS, NO_REGS, ADDR_REGS, ADDR_REGS
|
||||
};
|
||||
|
||||
/* Return attribute type of insn. */
|
||||
@ -1613,9 +1613,6 @@ load_multiple_operation (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED)
|
||||
else
|
||||
return 0;
|
||||
|
||||
if (src_addr == frame_pointer_rtx || src_addr == arg_pointer_rtx)
|
||||
return 0;
|
||||
|
||||
for (i = 1; i < count; i++)
|
||||
{
|
||||
rtx elt = XVECEXP (op, 0, i);
|
||||
@ -1676,9 +1673,6 @@ store_multiple_operation (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED)
|
||||
else
|
||||
return 0;
|
||||
|
||||
if (dest_addr == frame_pointer_rtx || dest_addr == arg_pointer_rtx)
|
||||
return 0;
|
||||
|
||||
for (i = 1; i < count; i++)
|
||||
{
|
||||
rtx elt = XVECEXP (op, 0, i);
|
||||
@ -2258,15 +2252,19 @@ s390_decompose_address (register rtx addr, struct s390_address *out)
|
||||
/* Validate displacement. */
|
||||
if (!disp)
|
||||
{
|
||||
/* If the argument pointer is involved, the displacement will change
|
||||
later anyway as the argument pointer gets eliminated. This could
|
||||
make a valid displacement invalid, but it is more likely to make
|
||||
an invalid displacement valid, because we sometimes access the
|
||||
register save area via negative offsets to the arg pointer.
|
||||
/* If the argument pointer or the return address pointer are involved,
|
||||
the displacement will change later anyway as the virtual registers get
|
||||
eliminated. This could make a valid displacement invalid, but it is
|
||||
more likely to make an invalid displacement valid, because we sometimes
|
||||
access the register save area via negative offsets to one of those
|
||||
registers.
|
||||
Thus we don't check the displacement for validity here. If after
|
||||
elimination the displacement turns out to be invalid after all,
|
||||
this is fixed up by reload in any case. */
|
||||
if (base != arg_pointer_rtx && indx != arg_pointer_rtx)
|
||||
if (base != arg_pointer_rtx
|
||||
&& indx != arg_pointer_rtx
|
||||
&& base != return_address_pointer_rtx
|
||||
&& indx != return_address_pointer_rtx)
|
||||
if (!DISP_IN_RANGE (offset))
|
||||
return FALSE;
|
||||
}
|
||||
@ -5499,7 +5497,7 @@ s390_reorg (void)
|
||||
frame pointer of that frame. */
|
||||
|
||||
rtx
|
||||
s390_return_addr_rtx (int count, rtx frame)
|
||||
s390_return_addr_rtx (int count, rtx frame ATTRIBUTE_UNUSED)
|
||||
{
|
||||
rtx addr;
|
||||
|
||||
@ -5512,10 +5510,10 @@ s390_return_addr_rtx (int count, rtx frame)
|
||||
value of RETURN_REGNUM is actually saved. */
|
||||
|
||||
if (count == 0)
|
||||
cfun->machine->save_return_addr_p = true;
|
||||
|
||||
/* To retrieve the return address we read the stack slot where the
|
||||
corresponding RETURN_REGNUM value was saved. */
|
||||
{
|
||||
cfun->machine->save_return_addr_p = true;
|
||||
return gen_rtx_MEM (Pmode, return_address_pointer_rtx);
|
||||
}
|
||||
|
||||
addr = plus_constant (frame, RETURN_REGNUM * UNITS_PER_WORD);
|
||||
addr = memory_address (Pmode, addr);
|
||||
@ -5642,6 +5640,17 @@ s390_arg_frame_offset (void)
|
||||
return cfun->machine->frame_size + STACK_POINTER_OFFSET;
|
||||
}
|
||||
|
||||
/* Return offset between return address pointer (location of r14
|
||||
on the stack) and frame pointer initially after prologue. */
|
||||
|
||||
HOST_WIDE_INT
|
||||
s390_return_address_offset (void)
|
||||
{
|
||||
s390_frame_info (1, 1);
|
||||
|
||||
return cfun->machine->frame_size + RETURN_REGNUM * UNITS_PER_WORD;
|
||||
}
|
||||
|
||||
/* Emit insn to save fpr REGNUM at offset OFFSET relative
|
||||
to register BASE. Return generated insn. */
|
||||
|
||||
|
||||
@ -284,14 +284,14 @@ if (INTEGRAL_MODE_P (MODE) && \
|
||||
Reg 33: Condition code
|
||||
Reg 34: Frame pointer */
|
||||
|
||||
#define FIRST_PSEUDO_REGISTER 35
|
||||
#define FIRST_PSEUDO_REGISTER 36
|
||||
|
||||
/* Standard register usage. */
|
||||
#define GENERAL_REGNO_P(N) ((int)(N) >= 0 && (N) < 16)
|
||||
#define ADDR_REGNO_P(N) ((N) >= 1 && (N) < 16)
|
||||
#define FP_REGNO_P(N) ((N) >= 16 && (N) < (TARGET_IEEE_FLOAT? 32 : 20))
|
||||
#define CC_REGNO_P(N) ((N) == 33)
|
||||
#define FRAME_REGNO_P(N) ((N) == 32 || (N) == 34)
|
||||
#define FRAME_REGNO_P(N) ((N) == 32 || (N) == 34 || (N) == 35)
|
||||
|
||||
#define GENERAL_REG_P(X) (REG_P (X) && GENERAL_REGNO_P (REGNO (X)))
|
||||
#define ADDR_REG_P(X) (REG_P (X) && ADDR_REGNO_P (REGNO (X)))
|
||||
@ -327,7 +327,7 @@ if (INTEGRAL_MODE_P (MODE) && \
|
||||
0, 0, 0, 0, \
|
||||
0, 0, 0, 0, \
|
||||
0, 0, 0, 0, \
|
||||
1, 1, 1 }
|
||||
1, 1, 1, 1 }
|
||||
|
||||
#define CALL_USED_REGISTERS \
|
||||
{ 1, 1, 1, 1, \
|
||||
@ -338,7 +338,7 @@ if (INTEGRAL_MODE_P (MODE) && \
|
||||
1, 1, 1, 1, \
|
||||
1, 1, 1, 1, \
|
||||
1, 1, 1, 1, \
|
||||
1, 1, 1 }
|
||||
1, 1, 1, 1 }
|
||||
|
||||
#define CALL_REALLY_USED_REGISTERS \
|
||||
{ 1, 1, 1, 1, \
|
||||
@ -349,7 +349,7 @@ if (INTEGRAL_MODE_P (MODE) && \
|
||||
1, 1, 1, 1, \
|
||||
1, 1, 1, 1, \
|
||||
1, 1, 1, 1, \
|
||||
1, 1, 1 }
|
||||
1, 1, 1, 1 }
|
||||
|
||||
#define CONDITIONAL_REGISTER_USAGE s390_conditional_register_usage ()
|
||||
|
||||
@ -358,7 +358,7 @@ if (INTEGRAL_MODE_P (MODE) && \
|
||||
{ 1, 2, 3, 4, 5, 0, 13, 12, 11, 10, 9, 8, 7, 6, 14, \
|
||||
16, 17, 18, 19, 20, 21, 22, 23, \
|
||||
24, 25, 26, 27, 28, 29, 30, 31, \
|
||||
15, 32, 33, 34 }
|
||||
15, 32, 33, 34, 35 }
|
||||
|
||||
|
||||
/* Fitting values into registers. */
|
||||
@ -449,12 +449,12 @@ enum reg_class
|
||||
#define REG_CLASS_CONTENTS \
|
||||
{ \
|
||||
{ 0x00000000, 0x00000000 }, /* NO_REGS */ \
|
||||
{ 0x0000fffe, 0x00000005 }, /* ADDR_REGS */ \
|
||||
{ 0x0000ffff, 0x00000005 }, /* GENERAL_REGS */ \
|
||||
{ 0x0000fffe, 0x0000000d }, /* ADDR_REGS */ \
|
||||
{ 0x0000ffff, 0x0000000d }, /* GENERAL_REGS */ \
|
||||
{ 0xffff0000, 0x00000000 }, /* FP_REGS */ \
|
||||
{ 0xfffffffe, 0x00000005 }, /* ADDR_FP_REGS */ \
|
||||
{ 0xffffffff, 0x00000005 }, /* GENERAL_FP_REGS */ \
|
||||
{ 0xffffffff, 0x00000007 }, /* ALL_REGS */ \
|
||||
{ 0xfffffffe, 0x0000000d }, /* ADDR_FP_REGS */ \
|
||||
{ 0xffffffff, 0x0000000d }, /* GENERAL_FP_REGS */ \
|
||||
{ 0xffffffff, 0x0000000f }, /* ALL_REGS */ \
|
||||
}
|
||||
|
||||
/* Register -> class mapping. */
|
||||
@ -579,10 +579,8 @@ extern int current_function_outgoing_args_size;
|
||||
|
||||
/* Describe how we implement __builtin_eh_return. */
|
||||
#define EH_RETURN_DATA_REGNO(N) ((N) < 4 ? (N) + 6 : INVALID_REGNUM)
|
||||
#define EH_RETURN_HANDLER_RTX \
|
||||
gen_rtx_MEM (Pmode, plus_constant (arg_pointer_rtx, \
|
||||
-STACK_POINTER_OFFSET + UNITS_PER_WORD*RETURN_REGNUM))
|
||||
|
||||
#define EH_RETURN_HANDLER_RTX gen_rtx_MEM (Pmode, return_address_pointer_rtx)
|
||||
|
||||
/* Select a format to encode pointers in exception handling data. */
|
||||
#define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \
|
||||
(flag_pic \
|
||||
@ -596,6 +594,7 @@ extern int current_function_outgoing_args_size;
|
||||
#define FRAME_POINTER_REGNUM 34
|
||||
#define HARD_FRAME_POINTER_REGNUM 11
|
||||
#define ARG_POINTER_REGNUM 32
|
||||
#define RETURN_ADDRESS_POINTER_REGNUM 35
|
||||
|
||||
/* The static chain must be call-clobbered, but not used for
|
||||
function argument passing. As register 1 is clobbered by
|
||||
@ -614,11 +613,13 @@ extern int current_function_outgoing_args_size;
|
||||
|
||||
#define INITIAL_FRAME_POINTER_OFFSET(DEPTH) (DEPTH) = 0
|
||||
|
||||
#define ELIMINABLE_REGS \
|
||||
{{ FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
|
||||
{ FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}, \
|
||||
{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
|
||||
{ ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}}
|
||||
#define ELIMINABLE_REGS \
|
||||
{{ FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
|
||||
{ FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}, \
|
||||
{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
|
||||
{ ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}, \
|
||||
{ RETURN_ADDRESS_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
|
||||
{ RETURN_ADDRESS_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}}
|
||||
|
||||
#define CAN_ELIMINATE(FROM, TO) (1)
|
||||
|
||||
@ -633,6 +634,10 @@ extern int current_function_outgoing_args_size;
|
||||
{ (OFFSET) = s390_arg_frame_offset (); } \
|
||||
else if ((FROM) == ARG_POINTER_REGNUM && (TO) == STACK_POINTER_REGNUM) \
|
||||
{ (OFFSET) = s390_arg_frame_offset (); } \
|
||||
else if ((FROM) == RETURN_ADDRESS_POINTER_REGNUM \
|
||||
&& ((TO) == STACK_POINTER_REGNUM \
|
||||
|| (TO) == HARD_FRAME_POINTER_REGNUM)) \
|
||||
{ (OFFSET) = s390_return_address_offset (); } \
|
||||
else \
|
||||
abort(); \
|
||||
}
|
||||
@ -914,10 +919,10 @@ extern int flag_pic;
|
||||
indexed by compiler's hard-register-number (see above). */
|
||||
#define REGISTER_NAMES \
|
||||
{ "%r0", "%r1", "%r2", "%r3", "%r4", "%r5", "%r6", "%r7", \
|
||||
"%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15", \
|
||||
"%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15", \
|
||||
"%f0", "%f2", "%f4", "%f6", "%f1", "%f3", "%f5", "%f7", \
|
||||
"%f8", "%f10", "%f12", "%f14", "%f9", "%f11", "%f13", "%f15", \
|
||||
"%ap", "%cc", "%fp" \
|
||||
"%f8", "%f10", "%f12", "%f14", "%f9", "%f11", "%f13", "%f15", \
|
||||
"%ap", "%cc", "%fp", "%rp" \
|
||||
}
|
||||
|
||||
/* Emit a dtp-relative reference to a TLS variable. */
|
||||
|
||||
@ -1654,9 +1654,6 @@
|
||||
}
|
||||
else
|
||||
FAIL;
|
||||
|
||||
if (from == frame_pointer_rtx || from == arg_pointer_rtx)
|
||||
FAIL;
|
||||
}
|
||||
else
|
||||
{
|
||||
@ -1747,9 +1744,6 @@
|
||||
}
|
||||
else
|
||||
FAIL;
|
||||
|
||||
if (to == frame_pointer_rtx || to == arg_pointer_rtx)
|
||||
FAIL;
|
||||
}
|
||||
else
|
||||
{
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user