+2003-06-10 James E Wilson <wilson@tuliptree.org>
+
+ PR target/8812
+ * reload1.c (choose_reload_regs): For equiv reg, add loop over all
+ hard regs for reload_reg_used_at_all and reg_class_contents checks.
+
2003-06-10 Kazu Hirata <kazu@cs.umass.edu>
* config/h8300/h8300.c (print_operand): Remove support for
/* If we found a spill reg, reject it unless it is free
and of the desired class. */
- if (equiv != 0
- && ((TEST_HARD_REG_BIT (reload_reg_used_at_all, regno)
+ if (equiv != 0)
+ {
+ int regs_used = 0;
+ int bad_for_class = 0;
+ int max_regno = regno + rld[r].nregs;
+
+ for (i = regno; i < max_regno; i++)
+ {
+ regs_used |= TEST_HARD_REG_BIT (reload_reg_used_at_all,
+ i);
+ bad_for_class |= ! TEST_HARD_REG_BIT (reg_class_contents[(int) rld[r].class],
+ i);
+ }
+
+ if ((regs_used
&& ! free_for_value_p (regno, rld[r].mode,
rld[r].opnum, rld[r].when_needed,
rld[r].in, rld[r].out, r, 1))
- || ! TEST_HARD_REG_BIT (reg_class_contents[(int) rld[r].class],
- regno)))
- equiv = 0;
+ || bad_for_class)
+ equiv = 0;
+ }
if (equiv != 0 && ! HARD_REGNO_MODE_OK (regno, rld[r].mode))
equiv = 0;