Commit 07e0fe3d by Kazu Hirata Committed by Kazu Hirata

h8300.md: Remove an unnecessary zero_extend expander that is used when not optimizing.

2000-10-17  Kazu Hirata  <kazu@hxi.com>

	* config/h8300/h8300.md: Remove an unnecessary zero_extend
	expander that is used when not optimizing.  Output a tab after
	each assembly insns.

From-SVN: r36911
parent 10501d8f
2000-10-17 Kazu Hirata <kazu@hxi.com>
* config/h8300/h8300.md: Remove an unnecessary zero_extend
expander that is used when not optimizing. Output a tab after
each assembly insns.
2000-10-17 Chandrakala Chavva <cchavva@redhat.com>
* gcc.c: New options --target-help.
......
......@@ -1634,24 +1634,6 @@
[(set (match_operand:SI 0 "register_operand" "")
(zero_extend:SI (match_operand:HI 1 "register_operand" "")))]
""
"
{
if (TARGET_H8300
&& GET_CODE (operands[1]) != CONST_INT
&& !optimize)
{
emit_insn (gen_zero_extendhisi2_h8300 (operands[0], operands[1]));
DONE;
}
}")
;; This is used when not optimizing. It avoids severe code explosion
;; due to poor register allocation.
(define_expand "zero_extendhisi2_h8300"
[(set (reg:HI 1) (match_operand:HI 1 "general_operand" ""))
(set (reg:SI 0) (zero_extend:SI (reg:HI 1)))
(set (match_operand:SI 0 "general_operand" "") (reg:SI 0))]
"TARGET_H8300"
"")
;; %e prints the high part of a CONST_INT, not the low part. Arggh.
......@@ -1661,8 +1643,8 @@
"TARGET_H8300"
"@
sub.w %e0,%e0
mov.w %f1,%f0\;sub.w %e0,%e0
mov.w %e1,%f0\;sub.w %e0,%e0"
mov.w %f1,%f0\;sub.w %e0,%e0
mov.w %e1,%f0\;sub.w %e0,%e0"
[(set_attr "length" "2,4,4")
(set_attr "cc" "clobber,clobber,clobber")])
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment