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i386.c (ix86_force_to_memory, [...]): Update for 64bit. 

* i386.c (ix86_force_to_memory, ix86_free_from_memory):
	Update for 64bit.

From-SVN: r41062
This commit is contained in:
Jan Hubicka 2001-04-03 19:44:45 +02:00 committed by Jan Hubicka
parent 547a559d01
commit 898d374de9
2 changed files with 90 additions and 44 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Tue Apr 3 19:41:21 CEST 2001 Jan Hubicka <jh@suse.cz>
* i386.c (ix86_force_to_memory, ix86_free_from_memory):
Update for 64bit.
2001-04-03 Zack Weinberg <zackw@stanford.edu>
* config/i386/xm-beos.h, config/i386/xm-isc.h,

129
gcc/config/i386/i386.c
View File

@ -10147,45 +10147,79 @@ ix86_force_to_memory (mode, operand)
enum machine_mode mode;
rtx operand;
{
rtx result;
if (!reload_completed)
abort ();
switch (mode)
if (TARGET_64BIT && TARGET_RED_ZONE)
{
case DImode:
{
rtx operands[2];
split_di (&operand, 1, operands, operands+1);
emit_insn (
gen_rtx_SET (VOIDmode,
gen_rtx_MEM (SImode,
gen_rtx_PRE_DEC (Pmode,
stack_pointer_rtx)),
operands[1]));
emit_insn (
gen_rtx_SET (VOIDmode,
gen_rtx_MEM (SImode,
gen_rtx_PRE_DEC (Pmode,
stack_pointer_rtx)),
operands[0]));
}
break;
case HImode:
/* It is better to store HImodes as SImodes. */
if (!TARGET_PARTIAL_REG_STALL)
operand = gen_lowpart (SImode, operand);
/* FALLTHRU */
case SImode:
emit_insn (
gen_rtx_SET (VOIDmode,
gen_rtx_MEM (GET_MODE (operand),
gen_rtx_PRE_DEC (SImode,
stack_pointer_rtx)),
operand));
break;
default:
abort();
result = gen_rtx_MEM (mode,
gen_rtx_PLUS (Pmode,
stack_pointer_rtx,
GEN_INT (-RED_ZONE_SIZE)));
emit_move_insn (result, operand);
}
return gen_rtx_MEM (mode, stack_pointer_rtx);
else if (TARGET_64BIT && !TARGET_RED_ZONE)
{
switch (mode)
{
case HImode:
case SImode:
operand = gen_lowpart (DImode, operand);
/* FALLTHRU */
case DImode:
emit_insn (
gen_rtx_SET (VOIDmode,
gen_rtx_MEM (DImode,
gen_rtx_PRE_DEC (DImode,
stack_pointer_rtx)),
operand));
break;
default:
abort ();
}
result = gen_rtx_MEM (mode, stack_pointer_rtx);
}
else
{
switch (mode)
{
case DImode:
{
rtx operands[2];
split_di (&operand, 1, operands, operands + 1);
emit_insn (
gen_rtx_SET (VOIDmode,
gen_rtx_MEM (SImode,
gen_rtx_PRE_DEC (Pmode,
stack_pointer_rtx)),
operands[1]));
emit_insn (
gen_rtx_SET (VOIDmode,
gen_rtx_MEM (SImode,
gen_rtx_PRE_DEC (Pmode,
stack_pointer_rtx)),
operands[0]));
}
break;
case HImode:
/* It is better to store HImodes as SImodes. */
if (!TARGET_PARTIAL_REG_STALL)
operand = gen_lowpart (SImode, operand);
/* FALLTHRU */
case SImode:
emit_insn (
gen_rtx_SET (VOIDmode,
gen_rtx_MEM (GET_MODE (operand),
gen_rtx_PRE_DEC (SImode,
stack_pointer_rtx)),
operand));
break;
default:
abort ();
}
result = gen_rtx_MEM (mode, stack_pointer_rtx);
}
return result;
}
/* Free operand from the memory. */
@ -10193,15 +10227,22 @@ void
ix86_free_from_memory (mode)
enum machine_mode mode;
{
/* Use LEA to deallocate stack space. In peephole2 it will be converted
to pop or add instruction if registers are available. */
emit_insn (gen_rtx_SET (VOIDmode, stack_pointer_rtx,
gen_rtx_PLUS (Pmode, stack_pointer_rtx,
GEN_INT (mode == DImode
? 8
: mode == HImode && TARGET_PARTIAL_REG_STALL
? 2
: 4))));
if (!TARGET_64BIT || !TARGET_RED_ZONE)
{
int size;
if (mode == DImode || TARGET_64BIT)
size = 8;
else if (mode == HImode && TARGET_PARTIAL_REG_STALL)
size = 2;
else
size = 4;
/* Use LEA to deallocate stack space. In peephole2 it will be converted
to pop or add instruction if registers are available. */
emit_insn (gen_rtx_SET (VOIDmode, stack_pointer_rtx,
gen_rtx_PLUS (Pmode, stack_pointer_rtx,
GEN_INT (size))));
}
}
/* Put float CONST_DOUBLE in the constant pool instead of fp regs.