+2000-04-07 Richard Henderson <rth@cygnus.com>
+
+ * config/alpha/alpha.c (alpha_emit_conditional_move): Fail
+ if we discover we need a pseudo and no_new_pseudos is true.
+ * config/alpha/alpha.md (ne:DI insn): New.
+ (trunctfsf2, sne): Emit NE instead of non-canonical LTU.
+
2000-04-07 Richard Henderson <rth@cygnus.com>
* rtl.def (COND_EXEC): New.
&& (op0 == CONST0_RTX (cmp_mode) || op1 == CONST0_RTX (cmp_mode)))
return gen_rtx_fmt_ee (code, VOIDmode, op0, op1);
- /* We can't put the comparison insides a conditional move;
+ /* We can't put the comparison inside the conditional move;
emit a compare instruction and put that inside the
conditional move. Make sure we emit only comparisons we have;
swap or reverse as necessary. */
+ if (no_new_pseudos)
+ return NULL_RTX;
+
switch (code)
{
case EQ: case LE: case LT: case LEU: case LTU:
which prevents rounding error in the final conversion to SFmode. */
emit_insn (gen_rtx_SET (VOIDmode, sticky,
- gen_rtx_LTU (DImode, const0_rtx, lo)));
+ gen_rtx_NE (DImode, lo, const0_rtx)));
emit_insn (gen_iordi3 (hi, hi, sticky));
emit_insn (gen_trunctfdf2 (tmpf, arg));
emit_insn (gen_truncdfsf2 (operands[0], tmpf));
;; Next are all the integer comparisons, and conditional moves and branches
;; and some of the related define_expand's and define_split's.
+(define_insn ""
+ [(set (match_operand:DI 0 "register_operand" "=r")
+ (ne:DI (match_operand:DI 1 "reg_or_8bit_operand" "rI")
+ (const_int 0)))]
+ ""
+ "cmpult $31,%1,%0"
+ [(set_attr "type" "icmp")])
+
(define_insn ""
[(set (match_operand:DI 0 "register_operand" "=r")
(match_operator:DI 1 "alpha_comparison_operator"
if (alpha_compare.op1 == const0_rtx)
{
- emit_insn (gen_sgtu (operands[0]));
+ operands[1] = gen_rtx_NE (DImode, alpha_compare.op0, alpha_compare.op1);
+ alpha_compare.op0 = alpha_compare.op1 = NULL_RTX;
+ emit_insn (gen_rtx_SET (VOIDmode, operands[0], operands[1]));
DONE;
}