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ia64.c (emit_insn_group_barriers): Special case epilogue_deallocate_stack.

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* config/ia64/ia64.c (emit_insn_group_barriers): Special case
        epilogue_deallocate_stack.

        * config/ia64/ia64.c (ia64_print_operand) [case D]: Emit
        completers for UNORDERED and ORDERED as well.
        * config/ia64/ia64.md (bunordered, bordered): New.
        (sunordered, sordered): New.

From-SVN: r34734
This commit is contained in:
Richard Henderson 2000-06-27 10:36:59 -07:00 committed by Richard Henderson
parent d4826ded62
commit e57b9d6566
3 changed files with 102 additions and 5 deletions
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10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2000-06-27 Richard Henderson <rth@cygnus.com>
* config/ia64/ia64.c (emit_insn_group_barriers): Special case
epilogue_deallocate_stack.
* config/ia64/ia64.c (ia64_print_operand) [case D]: Emit
completers for UNORDERED and ORDERED as well.
* config/ia64/ia64.md (bunordered, bordered): New.
(sunordered, sordered): New.
Tue Jun 27 12:14:12 MET DST 2000 Jan Hubicka <jh@suse.cz>
* genattrtab.c (write_attr_value): Do not abort for CONST_INT operands.

35
gcc/config/ia64/ia64.c
View File

@ -1777,6 +1777,8 @@ ia64_print_operand (file, x, code)
rtx x;
int code;
{
const char *str;
switch (code)
{
case 0:
@ -1796,7 +1798,22 @@ ia64_print_operand (file, x, code)
}
case 'D':
fputs (GET_CODE (x) == NE ? "neq" : GET_RTX_NAME (GET_CODE (x)), file);
switch (GET_CODE (x))
{
case NE:
str = "neq";
break;
case UNORDERED:
str = "unord";
break;
case ORDERED:
str = "ord";
break;
default:
str = GET_RTX_NAME (GET_CODE (x));
break;
}
fputs (str, file);
return;
case 'E':
@ -1805,13 +1822,14 @@ ia64_print_operand (file, x, code)
case 'F':
if (x == CONST0_RTX (GET_MODE (x)))
fputs (reg_names [FR_REG (0)], file);
str = reg_names [FR_REG (0)];
else if (x == CONST1_RTX (GET_MODE (x)))
fputs (reg_names [FR_REG (1)], file);
str = reg_names [FR_REG (1)];
else if (GET_CODE (x) == REG)
fputs (reg_names [REGNO (x)], file);
str = reg_names [REGNO (x)];
else
abort ();
fputs (str, file);
return;
case 'I':
@ -2834,8 +2852,15 @@ emit_insn_group_barriers (insns)
break;
else
{
rtx pat = PATTERN (insn);
/* We play dependency tricks with the epilogue in order to
get proper schedules. Undo this for dv analysis. */
if (INSN_CODE (insn) == CODE_FOR_epilogue_deallocate_stack)
pat = XVECEXP (pat, 0, 0);
memset (rws_insn, 0, sizeof (rws_insn));
need_barrier |= rtx_needs_barrier (PATTERN (insn), flags, 0);
need_barrier |= rtx_needs_barrier (pat, flags, 0);
/* Check to see if the previous instruction was a volatile
asm. */

62
gcc/config/ia64/ia64.md
View File

@ -2153,6 +2153,40 @@
operands[3] = ia64_compare_op1;
}")
(define_expand "bunordered"
[(set (match_dup 1)
(unordered:CC (match_dup 2)
(match_dup 3)))
(set (pc)
(if_then_else (ne:CC (match_dup 1)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
""
"
{
operands[1] = gen_reg_rtx (CCmode);
operands[2] = ia64_compare_op0;
operands[3] = ia64_compare_op1;
}")
(define_expand "bordered"
[(set (match_dup 1)
(ordered:CC (match_dup 2)
(match_dup 3)))
(set (pc)
(if_then_else (ne:CC (match_dup 1)
(const_int 0))
(label_ref (match_operand 0 "" ""))
(pc)))]
""
"
{
operands[1] = gen_reg_rtx (CCmode);
operands[2] = ia64_compare_op0;
operands[3] = ia64_compare_op1;
}")
(define_insn "*br_true"
[(set (pc)
(if_then_else (match_operator 0 "predicate_operator"
@ -2323,6 +2357,34 @@
operands[3] = ia64_compare_op1;
}")
(define_expand "sunordered"
[(set (match_dup 1)
(unordered:CC (match_dup 2)
(match_dup 3)))
(set (match_operand:DI 0 "register_operand" "")
(ne:DI (match_dup 1) (const_int 0)))]
""
"
{
operands[1] = gen_reg_rtx (CCmode);
operands[2] = ia64_compare_op0;
operands[3] = ia64_compare_op1;
}")
(define_expand "sordered"
[(set (match_dup 1)
(ordered:CC (match_dup 2)
(match_dup 3)))
(set (match_operand:DI 0 "register_operand" "")
(ne:DI (match_dup 1) (const_int 0)))]
""
"
{
operands[1] = gen_reg_rtx (CCmode);
operands[2] = ia64_compare_op0;
operands[3] = ia64_compare_op1;
}")
;; Don't allow memory as destination here, because cmov/cmov/st is more
;; efficient than mov/mov/cst/cst.