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
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@ -1,3 +1,8 @@
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Tue Apr 3 19:41:21 CEST 2001 Jan Hubicka <jh@suse.cz>
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* i386.c (ix86_force_to_memory, ix86_free_from_memory):
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Update for 64bit.
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2001-04-03 Zack Weinberg <zackw@stanford.edu>
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* config/i386/xm-beos.h, config/i386/xm-isc.h,
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@ -10147,45 +10147,79 @@ ix86_force_to_memory (mode, operand)
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enum machine_mode mode;
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rtx operand;
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{
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rtx result;
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if (!reload_completed)
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abort ();
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switch (mode)
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if (TARGET_64BIT && TARGET_RED_ZONE)
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{
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case DImode:
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{
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rtx operands[2];
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split_di (&operand, 1, operands, operands+1);
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emit_insn (
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gen_rtx_SET (VOIDmode,
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gen_rtx_MEM (SImode,
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gen_rtx_PRE_DEC (Pmode,
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stack_pointer_rtx)),
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operands[1]));
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emit_insn (
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gen_rtx_SET (VOIDmode,
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gen_rtx_MEM (SImode,
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gen_rtx_PRE_DEC (Pmode,
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stack_pointer_rtx)),
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operands[0]));
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}
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break;
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case HImode:
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/* It is better to store HImodes as SImodes. */
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if (!TARGET_PARTIAL_REG_STALL)
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operand = gen_lowpart (SImode, operand);
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/* FALLTHRU */
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case SImode:
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emit_insn (
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gen_rtx_SET (VOIDmode,
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gen_rtx_MEM (GET_MODE (operand),
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gen_rtx_PRE_DEC (SImode,
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stack_pointer_rtx)),
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operand));
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break;
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default:
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abort();
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result = gen_rtx_MEM (mode,
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gen_rtx_PLUS (Pmode,
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stack_pointer_rtx,
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GEN_INT (-RED_ZONE_SIZE)));
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emit_move_insn (result, operand);
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}
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return gen_rtx_MEM (mode, stack_pointer_rtx);
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else if (TARGET_64BIT && !TARGET_RED_ZONE)
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{
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switch (mode)
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{
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case HImode:
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case SImode:
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operand = gen_lowpart (DImode, operand);
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/* FALLTHRU */
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case DImode:
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emit_insn (
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gen_rtx_SET (VOIDmode,
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gen_rtx_MEM (DImode,
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gen_rtx_PRE_DEC (DImode,
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stack_pointer_rtx)),
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operand));
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break;
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default:
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abort ();
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}
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result = gen_rtx_MEM (mode, stack_pointer_rtx);
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}
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else
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{
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switch (mode)
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{
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case DImode:
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{
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rtx operands[2];
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split_di (&operand, 1, operands, operands + 1);
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emit_insn (
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gen_rtx_SET (VOIDmode,
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gen_rtx_MEM (SImode,
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gen_rtx_PRE_DEC (Pmode,
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stack_pointer_rtx)),
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operands[1]));
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emit_insn (
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gen_rtx_SET (VOIDmode,
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gen_rtx_MEM (SImode,
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gen_rtx_PRE_DEC (Pmode,
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stack_pointer_rtx)),
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operands[0]));
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}
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break;
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case HImode:
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/* It is better to store HImodes as SImodes. */
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if (!TARGET_PARTIAL_REG_STALL)
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operand = gen_lowpart (SImode, operand);
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/* FALLTHRU */
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case SImode:
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emit_insn (
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gen_rtx_SET (VOIDmode,
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gen_rtx_MEM (GET_MODE (operand),
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gen_rtx_PRE_DEC (SImode,
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stack_pointer_rtx)),
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operand));
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break;
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default:
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abort ();
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}
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result = gen_rtx_MEM (mode, stack_pointer_rtx);
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}
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return result;
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}
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/* Free operand from the memory. */
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@ -10193,15 +10227,22 @@ void
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ix86_free_from_memory (mode)
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enum machine_mode mode;
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{
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/* Use LEA to deallocate stack space. In peephole2 it will be converted
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to pop or add instruction if registers are available. */
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emit_insn (gen_rtx_SET (VOIDmode, stack_pointer_rtx,
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gen_rtx_PLUS (Pmode, stack_pointer_rtx,
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GEN_INT (mode == DImode
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? 8
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: mode == HImode && TARGET_PARTIAL_REG_STALL
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? 2
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: 4))));
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if (!TARGET_64BIT || !TARGET_RED_ZONE)
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{
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int size;
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if (mode == DImode || TARGET_64BIT)
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size = 8;
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else if (mode == HImode && TARGET_PARTIAL_REG_STALL)
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size = 2;
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else
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size = 4;
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/* Use LEA to deallocate stack space. In peephole2 it will be converted
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to pop or add instruction if registers are available. */
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emit_insn (gen_rtx_SET (VOIDmode, stack_pointer_rtx,
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gen_rtx_PLUS (Pmode, stack_pointer_rtx,
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GEN_INT (size))));
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}
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}
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/* Put float CONST_DOUBLE in the constant pool instead of fp regs.
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