+2000-02-06 Richard Henderson <rth@cygnus.com>
+
+ * simplify-rtx.c (simplify_relational_operation): Canonicalize
+ constant to op1 for testing.
+
2000-02-06 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
* config/c4x/c4x.md (*ldi_on_overflow): New pattern.
2000-02-04 Jan Hubicka <jh@suse.cz>
Richard Henderson <rth@cygnus.com>
- * i386.c (SAVE_REGS_FIRST): Remove.
- (ix86_initial_elimination_offset): Handle only SAVE_REGS_FIRST mode.
- (ix86_compute_frame_size): Likewise.
+ * i386.c (SAVE_REGS_FIRST): Remove.
+ (ix86_initial_elimination_offset): Handle only SAVE_REGS_FIRST mode.
+ (ix86_compute_frame_size): Likewise.
(ix86_expand_prologue): Likewise. Use pro_epilogue_adjust_stack.
- (ix86_emit_restore_regs): Remove.
+ (ix86_emit_restore_regs): Remove.
(ix86_emit_epilogue_esp_adjustment): Use pro_epilogue_adjust_stack
when a frame pointer is in use.
- (ix86_expand_epilogue): Handle only SAVE_REGS_FIRST mode. Use mov
+ (ix86_expand_epilogue): Handle only SAVE_REGS_FIRST mode. Use mov
instead of pop to restore a register when profitable; emit leave
when profitable.
- (ix86_attr_length_default): Handle pro_epilogue_adjust_stack
- as a TYPE_LEA insn.
+ (ix86_attr_length_default): Handle pro_epilogue_adjust_stack
+ as a TYPE_LEA insn.
(ix86_adjust_cost): Handle pro_epilogue_adjust_stack as TYPE_ALU.
- * i386.md (prologue_allocate_stack): Remove.
+ * i386.md (prologue_allocate_stack): Remove.
(epilogue_deallocate_stack): Remove.
(pro_epilogue_adjust_stack): New.
)
return 0;
+ /* Make sure the constant is second. */
+ if ((CONSTANT_P (op0) && ! CONSTANT_P (op1))
+ || (GET_CODE (op0) == CONST_INT && GET_CODE (op1) != CONST_INT))
+ {
+ tem = op0, op0 = op1, op1 = tem;
+ code = swap_condition (code);
+ }
+
/* For integer comparisons of A and B maybe we can simplify A - B and can
then simplify a comparison of that with zero. If A and B are both either
a register or a CONST_INT, this can't help; testing for these cases will