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(movsf): Only generate stack temporary if used.

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From-SVN: r7552
This commit is contained in:
Richard Kenner 1994-06-23 19:25:10 -04:00
parent 8c461ea15d
commit f6ba0600ff
1 changed files with 14 additions and 10 deletions
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24
gcc/config/rs6000/rs6000.md
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@ -3763,8 +3763,6 @@
if (GET_CODE (operands[1]) == REG && REGNO (operands[1]) < 32)
{
rtx stack_slot = assign_stack_temp (SFmode, 4, 0);
/* If this is a store to memory or another integer register do the
move directly. Otherwise store to a temporary stack slot and
load from there into a floating point register. */
@ -3779,10 +3777,14 @@
operand_subword (operands[1], 0, 0, SFmode));
DONE;
}
else
{
rtx stack_slot = assign_stack_temp (SFmode, 4, 0);
emit_move_insn (stack_slot, operands[1]);
emit_move_insn (operands[0], stack_slot);
DONE;
emit_move_insn (stack_slot, operands[1]);
emit_move_insn (operands[0], stack_slot);
DONE;
}
}
if (GET_CODE (operands[0]) == MEM)
@ -3790,8 +3792,6 @@
if (GET_CODE (operands[0]) == REG && REGNO (operands[0]) < 32)
{
rtx stack_slot = assign_stack_temp (SFmode, 4, 0);
if (GET_CODE (operands[1]) == MEM
#if HOST_FLOAT_FORMAT == TARGET_FLOAT_FORMAT && ! defined(REAL_IS_NOT_DOUBLE)
|| GET_CODE (operands[1]) == CONST_DOUBLE
@ -3805,10 +3805,14 @@
operand_subword (operands[1], 0, 0, SFmode));
DONE;
}
else
{
rtx stack_slot = assign_stack_temp (SFmode, 4, 0);
emit_move_insn (stack_slot, operands[1]);
emit_move_insn (operands[0], stack_slot);
DONE;
emit_move_insn (stack_slot, operands[1]);
emit_move_insn (operands[0], stack_slot);
DONE;
}
}
if (CONSTANT_P (operands[1]))