John Wehle (john@feith.com)
John Wehle (john@feith.com) * i386.md (extendsfdf, extendsfxf, extenddfxf): Use output_float_extend instead specifying '#' as the template. * i386.c (output_float_extend): Define. * i386.h (output_float_extend): Declare. From-SVN: r26455
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Wed Apr 14 14:26:36 1999 John Wehle (john@feith.com)
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* i386.md (extendsfdf, extendsfxf, extenddfxf): Use
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output_float_extend instead specifying '#' as the template.
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* i386.c (output_float_extend): Define.
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* i386.h (output_float_extend): Declare.
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Wed Apr 14 10:48:03 1999 Catherine Moore <clm@cygnus.com>
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* config/mips/elf.h, config/mips/elf64.h
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@ -4179,6 +4179,66 @@ output_fix_trunc (insn, operands)
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return AS1 (fldc%W2,%2);
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}
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/* Output code for INSN to extend a float. OPERANDS are the insn
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operands. The output may be DFmode or XFmode and the input operand
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may be SFmode or DFmode. Operands 2 and 3 are scratch memory and
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are only necessary if operands 0 or 1 are non-stack registers. */
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void
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output_float_extend (insn, operands)
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rtx insn;
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rtx *operands;
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{
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int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
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rtx xops[2];
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if (! STACK_TOP_P (operands[0]) && ! STACK_TOP_P (operands[1]))
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abort ();
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if (STACK_TOP_P (operands[0]) && STACK_TOP_P (operands[1]) && stack_top_dies)
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return;
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if (STACK_TOP_P (operands[0]) )
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{
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if (NON_STACK_REG_P (operands[1]))
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{
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if (GET_MODE (operands[1]) == SFmode)
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output_asm_insn (AS2 (mov%L0,%1,%2), operands);
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else
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{
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xops[0] = operands[2];
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xops[1] = operands[1];
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output_asm_insn (output_move_double (xops), xops);
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}
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}
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xops[0] = NON_STACK_REG_P (operands[1]) ? operands[2] : operands[1];
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output_asm_insn (AS1 (fld%z0,%y0), xops);
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}
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else
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{
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xops[0] = NON_STACK_REG_P (operands[0]) ? operands[3] : operands[0];
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if (stack_top_dies
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|| (GET_CODE (xops[0]) == MEM && GET_MODE (xops[0]) == XFmode))
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{
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output_asm_insn (AS1 (fstp%z0,%y0), xops);
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if (! stack_top_dies)
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output_asm_insn (AS1 (fld%z0,%y0), xops);
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}
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else
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output_asm_insn (AS1 (fst%z0,%y0), xops);
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if (NON_STACK_REG_P (operands[0]))
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{
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xops[0] = operands[0];
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xops[1] = operands[3];
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output_asm_insn (output_move_double (xops), xops);
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}
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}
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}
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/* Output code for INSN to compare OPERANDS. The two operands might
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not have the same mode: one might be within a FLOAT or FLOAT_EXTEND
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expression. If the compare is in mode CCFPEQmode, use an opcode that
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@ -2743,6 +2743,7 @@ extern int shift_op ();
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extern int VOIDmode_compare_op ();
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extern char *output_387_binary_op ();
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extern char *output_fix_trunc ();
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extern void output_float_extend ();
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extern char *output_float_compare ();
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extern char *output_fp_cc0_set ();
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extern void save_386_machine_status ();
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@ -2259,7 +2259,12 @@
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(clobber (match_operand:DF 3 "memory_operand" "m,m,m,o"))]
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"TARGET_80387 && (GET_CODE (operands[0]) != MEM
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|| GET_CODE (operands[1]) != MEM)"
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"#")
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"*
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{
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output_float_extend (insn, operands);
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return \"\";
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}"
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[(set_attr "type" "fld,fpop,fld,fpop")])
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(define_split
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[(set (match_operand:DF 0 "register_operand" "")
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@ -2302,21 +2307,8 @@
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|| GET_CODE (operands[1]) != MEM)"
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"*
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{
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int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
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if (! STACK_TOP_P (operands[0]) && ! STACK_TOP_P (operands[1]))
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abort ();
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if (STACK_TOP_P (operands[0]) && STACK_TOP_P (operands[1]))
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output_float_extend (insn, operands);
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return \"\";
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if (STACK_TOP_P (operands[0]))
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return AS1 (fld%z1,%y1);
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if (stack_top_dies)
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return AS1 (fstp%z0,%y0);
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else
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return AS1 (fst%z0,%y0);
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}"
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[(set_attr "type" "fld,fpop")])
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@ -2344,7 +2336,12 @@
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(clobber (match_operand:XF 3 "memory_operand" "m,m,m,o"))]
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"TARGET_80387 && (GET_CODE (operands[0]) != MEM
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|| GET_CODE (operands[1]) != MEM)"
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"#")
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"*
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{
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output_float_extend (insn, operands);
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return \"\";
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}"
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[(set_attr "type" "fld,fpop,fld,fpop")])
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(define_split
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[(set (match_operand:XF 0 "register_operand" "")
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@ -2387,26 +2384,8 @@
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|| GET_CODE (operands[1]) != MEM)"
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"*
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{
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int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
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if (! STACK_TOP_P (operands[0]) && ! STACK_TOP_P (operands[1]))
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abort ();
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if (STACK_TOP_P (operands[0]) && STACK_TOP_P (operands[1]))
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output_float_extend (insn, operands);
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return \"\";
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if (STACK_TOP_P (operands[0]))
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return AS1 (fld%z1,%y1);
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if (stack_top_dies || GET_CODE (operands[0]) == MEM)
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output_asm_insn (AS1 (fstp%z0,%y0), operands);
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else
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return AS1 (fst%z0,%y0);
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if (! stack_top_dies)
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return AS1 (fld%z0,%y0);
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return \"\";
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}"
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[(set_attr "type" "fld,fpop")])
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(clobber (match_operand:XF 3 "memory_operand" "m,m,m,o"))]
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"TARGET_80387 && (GET_CODE (operands[0]) != MEM
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|| GET_CODE (operands[1]) != MEM)"
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"#")
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"*
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{
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output_float_extend (insn, operands);
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return \"\";
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}"
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[(set_attr "type" "fld,fpop,fld,fpop")])
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(define_split
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[(set (match_operand:XF 0 "register_operand" "")
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|| GET_CODE (operands[1]) != MEM)"
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"*
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{
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int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
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if (! STACK_TOP_P (operands[0]) && ! STACK_TOP_P (operands[1]))
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abort ();
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if (STACK_TOP_P (operands[0]) && STACK_TOP_P (operands[1]))
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output_float_extend (insn, operands);
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return \"\";
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if (STACK_TOP_P (operands[0]))
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return AS1 (fld%z1,%y1);
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if (stack_top_dies || GET_CODE (operands[0]) == MEM)
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output_asm_insn (AS1 (fstp%z0,%y0), operands);
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else
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return AS1 (fst%z0,%y0);
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if (! stack_top_dies)
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return AS1 (fld%z0,%y0);
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return \"\";
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}"
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[(set_attr "type" "fld,fpop")])
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