Commit a207f649 by Kazu Hirata Committed by Kazu Hirata

* config/h8300/h8300.md: Tweak comments about peephole2's.

From-SVN: r78657
parent 2750f3f2
2004-02-29 Kazu Hirata <kazu@cs.umass.edu>
* config/h8300/h8300.md: Tweak comments about peephole2's.
2004-02-29 Waldek Hebisch <hebisch@math.uni.wroc.pl> 2004-02-29 Waldek Hebisch <hebisch@math.uni.wroc.pl>
PR middle-end/14203 PR middle-end/14203
......
...@@ -4176,12 +4176,12 @@ ...@@ -4176,12 +4176,12 @@
;; Transform ;; Transform
;; ;;
;; cmp.w #1,r0 ;; cmp.w #1,r0
;; bhi .L1 ;; bgt .L1
;; ;;
;; into ;; into
;; ;;
;; shar.w r0 ;; shar.w r0
;; bne .L1 ;; bgt .L1
(define_peephole2 (define_peephole2
[(set (cc0) [(set (cc0)
...@@ -4223,12 +4223,12 @@ ...@@ -4223,12 +4223,12 @@
;; Transform ;; Transform
;; ;;
;; cmp.w #255,r0 ;; cmp.w #255,r0
;; bhi .L1 ;; bgt .L1
;; ;;
;; into ;; into
;; ;;
;; mov.b r0h,r0h ;; mov.b r0h,r0h
;; bne .L1 ;; bgt .L1
(define_peephole2 (define_peephole2
[(set (cc0) [(set (cc0)
...@@ -4448,13 +4448,13 @@ ...@@ -4448,13 +4448,13 @@
;; Transform ;; Transform
;; ;;
;; cmp.l #1,er0 ;; cmp.l #1,er0
;; bhi .L1 ;; bgt .L1
;; ;;
;; into ;; into
;; ;;
;; mov.l er0,er1 ;; mov.l er0,er1
;; shar.l er1 ;; shar.l er1
;; bne .L1 ;; bgt .L1
;; We avoid this transformation if we see more than one copy of the ;; We avoid this transformation if we see more than one copy of the
;; same compare insn immediately before this one. ;; same compare insn immediately before this one.
...@@ -4503,12 +4503,12 @@ ...@@ -4503,12 +4503,12 @@
;; Transform ;; Transform
;; ;;
;; cmp.l #1,er0 ;; cmp.l #1,er0
;; bhi .L1 ;; bgt .L1
;; ;;
;; into ;; into
;; ;;
;; shar.l er0 ;; shar.l er0
;; bne .L1 ;; bgt .L1
(define_peephole2 (define_peephole2
[(set (cc0) [(set (cc0)
...@@ -4550,13 +4550,13 @@ ...@@ -4550,13 +4550,13 @@
;; Transform ;; Transform
;; ;;
;; cmp.l #15,er0 ;; cmp.l #15,er0
;; bhi .L1 ;; bgt .L1
;; ;;
;; into ;; into
;; ;;
;; and #240,r0l ;; and #240,r0l
;; mov.l er0,er0 ;; mov.l er0,er0
;; bne .L1 ;; bgt .L1
(define_peephole2 (define_peephole2
[(set (cc0) [(set (cc0)
...@@ -4599,7 +4599,15 @@ ...@@ -4599,7 +4599,15 @@
} }
operands[5] = GEN_INT (~INTVAL (operands[1]));") operands[5] = GEN_INT (~INTVAL (operands[1]));")
;; Transform A <= 65535 to (A & 0xffff0000) == 0. ;; Transform
;;
;; cmp.l #65535,er0
;; bgt .L1
;;
;; into
;;
;; mov.l e0,e0
;; bgt .L1
(define_peephole2 (define_peephole2
[(set (cc0) [(set (cc0)
......
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