+2005-06-29 Richard Henderson <rth@redhat.com>
+
+ * config/ia64/ia64.c (ia64_expand_vecint_minmax): Use us_minus and
+ plus for V4HImode UMAX.
+
2005-06-29 Joseph S. Myers <joseph@codesourcery.com>
* c-tree.h (default_function_array_conversion): Take and return
if (mode == V4HImode && (code == SMIN || code == SMAX))
return false;
+ /* This combination can be implemented with only saturating subtraction. */
+ if (mode == V4HImode && code == UMAX)
+ {
+ rtx x, tmp = gen_reg_rtx (mode);
+
+ x = gen_rtx_US_MINUS (mode, operands[1], operands[2]);
+ emit_insn (gen_rtx_SET (VOIDmode, tmp, x));
+
+ emit_insn (gen_addv4hi3 (operands[0], tmp, operands[2]));
+ return true;
+ }
+
/* Everything else implemented via vector comparisons. */
xops[0] = operands[0];
xops[4] = xops[1] = operands[1];